Feature

Meet your new patients.

You can’t see them, but trillions — maybe quadrillions — of them travel in and out of your practice every day. They’re hungry, mysterious, community-oriented, and small. Very, very small.

They’re the microbes occupying your current patients’ guts.

Someday soon, you’ll prescribe medicine not just for humans but also for these microbes.

“I am convinced in the future our medicine cabinets are going to have not just medications like a statin for treating us, but [also] pills that treat and inhibit an enzyme in our microbes and elicit a health benefit in some chronic disease,” said Stanley Hazen, MD, PhD, co-section head of Preventive Cardiology & Rehabilitation and director of the Center for Microbiome & Human Health at Cleveland Clinic, Cleveland, Ohio.

Evidence is mounting that the gut microbiome influences just about every major human disease. These trillions of microbes use our food to generate substances called metabolites that can protect or harm our health, with consequences reaching far beyond our gastrointestinal tracts.

Research has linked microbial metabolites to diabetes, cardiovascular disease, liver disease, obesity, high blood pressure, neurological disorders, depression, cancer, and more. Gastroenterologist Christopher Damman, MD, a clinical associate professor at the University of Washington Medical Center, Seattle, calls it a “growing theme” in microbiome science.

Now scientists are developing treatments targeting gut microbial pathways, designed to eliminate the bad metabolites and boost the good metabolites.

One close to human therapeutic intervention is an oral treatment from Dr. Hazen’s lab targeting the metabolite trimethylamine N-oxide (TMAO), a predictor of and contributor to both cardiovascular disease and chronic kidney disease. The drug, which blocks TMAO formation, is nearing clinical trials, Dr. Hazen said.

The advantage is safety. By targeting the microbe instead of, say, an enzyme, the host (your patient) must absorb little if any drug.

Implications for the future of medicine are huge. “Gut microbial pathways contribute to diabetes, obesity, virtually everything,” Dr. Hazen said. “Therapies that target gut microbiome processes will probably even be used for psychiatric disorders within, I’ll say, 10 or 20 years.”
 

The Science

About 100 trillion strains of bacteria live in our guts. As humans have evolved, so have they.

Between 70% and 90% come from the phyla Firmicutes and Bacteroidetes, with person-to-person variation shaped by genetics, environment, and lifestyle.

“Everyone’s microbiome is subtly different,” said Dr. Hazen. “So the combination of what they’re making is different. All these different biologically active compounds are influencing us in subtly different ways.”

How it works: When you eat, your microbes eat, breaking down food into metabolites that interact with the thin layer of epithelial cells lining your gut. Some can be absorbed through the lining and into your bloodstream, a phenomenon known as “leaky gut.” Once in your blood, they can trigger irritation and inflammation, potentially leading to a wide variety of health issues, from gas and bloating to autoimmune conditions and mood disorders.

“On the other side of the epithelial lining, you have some of the largest concentrations of immune cells,” said Narendra Kumar, PhD, associate professor of pharmaceutical sciences at Texas A&M University, College Station, Texas.

Metabolites can influence how these immune cells work, possibly explaining why each person’s immune system behaves distinctively.

Of the 1000-plus metabolites linked to the gut microbiome, scientists have identified several that matter.

Short-chain fatty acids. When we eat fiber, colon bacteria ferment it into the beneficial short-chain fatty acids acetate, propionate, and butyrate. These bind to receptors in muscle, liver, and fat tissue, affecting the secretion of gut hormones and peptides related to appetite, inflammation, energy expenditure, and fat oxidation.

Butyrate has been linked to health benefits. It supports the integrity of the gut’s lining, stifling pathogenic gut bacteria, fighting cancer-promoting inflammation, and protecting against obesity and diabetes. It can function as a prebiotic, helping beneficial bacteria thrive. And recent studies linked an abundance of butyrate-producing bacteria with reduced bone fracture risk and hospitalization for infectious disease.

TMAO and phenylacetylglutamine. When we eat foods rich in animal proteins — think eggs, milk, fish, and especially red meat — some gut bacteria convert nutrients like choline and L-carnitine into TMAO and phenylalanine into phenylacetylglutamine. Research conducted by Dr. Hazen’s lab and replicated by others has linked both metabolites to heart problems.

In a landmark study from Dr. Hazen’s group, healthy adults who went on to develop coronary artery disease had significantly higher plasma TMAO levels than those who did not wind up with the condition. The association remained strong, even after controlling for risk factors like age, sex, smoking, high blood pressure, and high cholesterol.

In preclinical studies, elevated TMAO enhanced cardiovascular disease. TMAO-producing microbes also accentuated cardiovascular disease phenotypes in mouse models, while blocking these pathways inhibited the phenotypes.

Research suggests TMAO may harm cardiomyocytes (cells that contract and relax the heart) in dozens of ways, such as activating the expression of proteins to promote hypertrophy and fibrosis, decreasing mitochondrial function, and disrupting calcium signaling.

Another study linked phenylacetylglutamine levels to cardiac event risk in patients with heart failure. Recent mechanistic investigations suggest the metabolite alters signaling in a beta-adrenergic receptor involved in our fight-or-flight response, said Hazen.

“It’s like a rheostat on the light switch, a dimmer switch, and it’s what’s called a negative allosteric modulator,” he said. “It’s the first time that this type of behavior has ever been shown to be present for a gut microbial metabolite and a host receptor.”

Tryptophan metabolites. Microbes in your colon can convert the amino acid tryptophan, also found in animal-based foods, into neurotransmitters like serotonin and melatonin.

“The enteric nervous system, the nervous system around the gut, is immense,” said James Versalovic, MD, PhD, professor of pathology and immunology at Baylor College of Medicine, Houston. “The gut-brain axis has become a very fertile area of research.”

Lesser-known tryptophan metabolites — like indole, tryptamine, and indoleethanol — have been linked to benefits like fortifying the gut barrier, promoting the release of glucagon-like peptide 1 to reduce appetite, and protecting the liver from hepatitis. However, indole can also spur the production of indoxyl sulfate, a toxin linked to chronic kidney disease. 

Bile acid byproducts. Your gut bugs also feast on (and transform) bile acids before they reabsorb and travel back to the liver.

Research is gaining traction on these secondary bile acids, which can affect inflammation and immune function in helpful and harmful ways.

One area of interest is how microbes break down hormones in bile. A recent study from Harvard showed that gut microbes convert corticoid hormones in bile into progestins, which could affect postpartum depression risk. And researchers are exploring the estrobolome — a gut microbial community dedicated to breaking down estrogen into its active form so it can be reabsorbed.

“Depending on the bacteria that you have, more or less can be recirculated back into your blood,” said Beatriz Peñalver Bernabé, PhD, an assistant professor of biomedical engineering and urology at the University of Illinois Chicago. “So you may be producing the same amount of estrogen, but depending on the bacteria you have, the real free estrogen that can bind to your cells may be very different.”

The gut microbiome can also regulate testosterone, with studies showing microbial differences in men with high testosterone vs those with less.
 

What Patients Can Do Now

Advances in the field of microbiome research — and the related “gut health” wellness craze — have spawned all kinds of new microbiome-based products: Like over-the-counter probiotic supplements and at-home test kits, which let you send a stool sample for analysis to reveal microbiome health and personalized diet recommendations.

But the science behind these tests is still evolving, said Dr. Damman. “The clinical inferences and applications are still pretty limited.”

For most people, the first step to fostering healthier microbial metabolites is much simpler: Diversify your diet.

“A lot of folks are missing that diversity,” Dr. Damman said.

“Eat foods and experiment with foods that you might not eat all the time,” especially fruits, vegetables, nuts, seeds, and beans.

Another strategy: Eat foods with probiotic bacteria. “I view it as an insurance policy,” said Dr. Versalovic, “fortifying my gut with probiotics, with daily yogurt, for example, at breakfast.”

Fermented foods like kimchi and kombucha can also increase microbial diversity and can even contain health-promoting postbiotics, research shows.

As for probiotic supplements, the jury’s still out.

Certain strains of probiotic bacteria may be beneficial for some patients, like those with diarrhea, Crohn’s disease, and irritable bowel syndrome, according to World Gastroenterology Organisation guidelines.

As with other interventions, individual responses can vary. A Stanford study showed that some people with metabolic syndrome improved when taking a probiotic, while others didn’t. Both groups had key differences in gut bacteria and dietary habits.

For best results, such microbiome-based interventions will need to be personalized, experts say. And the technology to do that is coming sooner than you might think.
 

Microbiome’s Medical Future: ‘We Are on the Cusp of a New Era’

In just a few years, artificial intelligence (AI) models could predict gut microbial composition based on data such as dietary habits and household characteristics, Dr. Kumar said.

Advancements in metabolomics and bioinformatics could soon help physicians and patients personalize their treatment approaches, said Dr. Damman.

One focus will be on fortifying the gut with whatever it lacks.

“In those individuals where certain microbes are missing, (a) how could we add them back potentially in a rational, science-driven way, and (b) maybe some of those factors that the microbes are producing out the other ends, you could give directly,” said Dr. Damman.

For example, multiple companies make butyrate as a dietary supplement, although the research is too early to support widespread use. Another option could be eating something that spurs butyrate production. One small study found that a fiber supplement formulated to increase butyrate levels in the colon reduced participants’ systolic blood pressure by an average of six points.

Another option could be synbiotics, products that combine bacteria and the food source they feed on. “If you just give a diet-based therapy, it is not going to work as much. Because what if that diet needs certain bacteria to have these beneficial metabolites?” said Ashutosh Mangalam, PhD, associate professor of pathology at the University of Iowa Carver College of Medicine, Iowa City.

Dr. Mangalam studies links between bacterial metabolism of phytoestrogens in soy foods and multiple sclerosis (MS) development. He is using AI to understand differences in metabolites in patients with MS vs healthy controls to determine how to target them.

Gut microbial metabolites could also affect disease screening and intervention. What if gut microbe sequencing could predict a pregnant person’s risk of developing depression, something now assessed through simple questionnaires?

“Imagine that your doctor says, ‘Okay, give me a poop sample,’ ” Dr. Bernabé said. “Then they phenotype it, and then they put it in your electronic medical record, and they say, ‘Well, you have high likelihood of having a mood disorder down the line in your pregnancy. Why don’t we directly refer you to a provider now so you can follow up?’ ”

Research is already underway to understand how metabolites might be linked to pregnancy outcomes, complex regional pain syndrome, and anxiety. Researchers are also investigating whether supplementing our diets with things like prebiotic fibers, apple polyphenols, or tomato paste might influence metabolites. And fecal transplants that shift the gut microbiome and metabolites could have potential in diseases like unexplained atherosclerosis, post-COVID syndrome, and hidradenitis suppurativa.

Dr. Hazen’s discovery linking TMAO with cardiovascular risk has already changed clinical practice. A blood TMAO test can help identify patients at risk who may not have traditional risk factors. “Millions have been done,” Dr. Hazen said.

Meanwhile, his drug targeting the TMAO pathway inches closer to clinical trials.

“In an animal model, we elicit improvement in heart failure, renal disease, atherosclerosis, thrombosis, aortic aneurysm, and obesity,” Dr. Hazen said. The first clinical trials will focus on renal disease.

As with any drug, the road to approval takes time. And success is not guaranteed.

But Dr. Hazen for one is optimistic.

“We are on the cusp of a new era,” Dr. Hazen said. “Like when humans first discovered insulin and glucagon were hormones that impact sugar metabolism. We now recognize myriad new ‘hormones’ in the form of gut microbiome metabolites that impact our physiology and susceptibility to diseases.”
 

A version of this article first appeared on Medscape.com.

Meet your new patients.

You can’t see them, but trillions — maybe quadrillions — of them travel in and out of your practice every day. They’re hungry, mysterious, community-oriented, and small. Very, very small.

They’re the microbes occupying your current patients’ guts.

Someday soon, you’ll prescribe medicine not just for humans but also for these microbes.

“I am convinced in the future our medicine cabinets are going to have not just medications like a statin for treating us, but [also] pills that treat and inhibit an enzyme in our microbes and elicit a health benefit in some chronic disease,” said Stanley Hazen, MD, PhD, co-section head of Preventive Cardiology & Rehabilitation and director of the Center for Microbiome & Human Health at Cleveland Clinic, Cleveland, Ohio.

Evidence is mounting that the gut microbiome influences just about every major human disease. These trillions of microbes use our food to generate substances called metabolites that can protect or harm our health, with consequences reaching far beyond our gastrointestinal tracts.

Research has linked microbial metabolites to diabetes, cardiovascular disease, liver disease, obesity, high blood pressure, neurological disorders, depression, cancer, and more. Gastroenterologist Christopher Damman, MD, a clinical associate professor at the University of Washington Medical Center, Seattle, calls it a “growing theme” in microbiome science.

Now scientists are developing treatments targeting gut microbial pathways, designed to eliminate the bad metabolites and boost the good metabolites.

One close to human therapeutic intervention is an oral treatment from Dr. Hazen’s lab targeting the metabolite trimethylamine N-oxide (TMAO), a predictor of and contributor to both cardiovascular disease and chronic kidney disease. The drug, which blocks TMAO formation, is nearing clinical trials, Dr. Hazen said.

The advantage is safety. By targeting the microbe instead of, say, an enzyme, the host (your patient) must absorb little if any drug.

Implications for the future of medicine are huge. “Gut microbial pathways contribute to diabetes, obesity, virtually everything,” Dr. Hazen said. “Therapies that target gut microbiome processes will probably even be used for psychiatric disorders within, I’ll say, 10 or 20 years.”
 

The Science

About 100 trillion strains of bacteria live in our guts. As humans have evolved, so have they.

Between 70% and 90% come from the phyla Firmicutes and Bacteroidetes, with person-to-person variation shaped by genetics, environment, and lifestyle.

“Everyone’s microbiome is subtly different,” said Dr. Hazen. “So the combination of what they’re making is different. All these different biologically active compounds are influencing us in subtly different ways.”

How it works: When you eat, your microbes eat, breaking down food into metabolites that interact with the thin layer of epithelial cells lining your gut. Some can be absorbed through the lining and into your bloodstream, a phenomenon known as “leaky gut.” Once in your blood, they can trigger irritation and inflammation, potentially leading to a wide variety of health issues, from gas and bloating to autoimmune conditions and mood disorders.

“On the other side of the epithelial lining, you have some of the largest concentrations of immune cells,” said Narendra Kumar, PhD, associate professor of pharmaceutical sciences at Texas A&M University, College Station, Texas.

Metabolites can influence how these immune cells work, possibly explaining why each person’s immune system behaves distinctively.

Of the 1000-plus metabolites linked to the gut microbiome, scientists have identified several that matter.

Short-chain fatty acids. When we eat fiber, colon bacteria ferment it into the beneficial short-chain fatty acids acetate, propionate, and butyrate. These bind to receptors in muscle, liver, and fat tissue, affecting the secretion of gut hormones and peptides related to appetite, inflammation, energy expenditure, and fat oxidation.

Butyrate has been linked to health benefits. It supports the integrity of the gut’s lining, stifling pathogenic gut bacteria, fighting cancer-promoting inflammation, and protecting against obesity and diabetes. It can function as a prebiotic, helping beneficial bacteria thrive. And recent studies linked an abundance of butyrate-producing bacteria with reduced bone fracture risk and hospitalization for infectious disease.

TMAO and phenylacetylglutamine. When we eat foods rich in animal proteins — think eggs, milk, fish, and especially red meat — some gut bacteria convert nutrients like choline and L-carnitine into TMAO and phenylalanine into phenylacetylglutamine. Research conducted by Dr. Hazen’s lab and replicated by others has linked both metabolites to heart problems.

In a landmark study from Dr. Hazen’s group, healthy adults who went on to develop coronary artery disease had significantly higher plasma TMAO levels than those who did not wind up with the condition. The association remained strong, even after controlling for risk factors like age, sex, smoking, high blood pressure, and high cholesterol.

In preclinical studies, elevated TMAO enhanced cardiovascular disease. TMAO-producing microbes also accentuated cardiovascular disease phenotypes in mouse models, while blocking these pathways inhibited the phenotypes.

Research suggests TMAO may harm cardiomyocytes (cells that contract and relax the heart) in dozens of ways, such as activating the expression of proteins to promote hypertrophy and fibrosis, decreasing mitochondrial function, and disrupting calcium signaling.

Another study linked phenylacetylglutamine levels to cardiac event risk in patients with heart failure. Recent mechanistic investigations suggest the metabolite alters signaling in a beta-adrenergic receptor involved in our fight-or-flight response, said Hazen.

“It’s like a rheostat on the light switch, a dimmer switch, and it’s what’s called a negative allosteric modulator,” he said. “It’s the first time that this type of behavior has ever been shown to be present for a gut microbial metabolite and a host receptor.”

Tryptophan metabolites. Microbes in your colon can convert the amino acid tryptophan, also found in animal-based foods, into neurotransmitters like serotonin and melatonin.

“The enteric nervous system, the nervous system around the gut, is immense,” said James Versalovic, MD, PhD, professor of pathology and immunology at Baylor College of Medicine, Houston. “The gut-brain axis has become a very fertile area of research.”

Lesser-known tryptophan metabolites — like indole, tryptamine, and indoleethanol — have been linked to benefits like fortifying the gut barrier, promoting the release of glucagon-like peptide 1 to reduce appetite, and protecting the liver from hepatitis. However, indole can also spur the production of indoxyl sulfate, a toxin linked to chronic kidney disease. 

Bile acid byproducts. Your gut bugs also feast on (and transform) bile acids before they reabsorb and travel back to the liver.

Research is gaining traction on these secondary bile acids, which can affect inflammation and immune function in helpful and harmful ways.

One area of interest is how microbes break down hormones in bile. A recent study from Harvard showed that gut microbes convert corticoid hormones in bile into progestins, which could affect postpartum depression risk. And researchers are exploring the estrobolome — a gut microbial community dedicated to breaking down estrogen into its active form so it can be reabsorbed.

“Depending on the bacteria that you have, more or less can be recirculated back into your blood,” said Beatriz Peñalver Bernabé, PhD, an assistant professor of biomedical engineering and urology at the University of Illinois Chicago. “So you may be producing the same amount of estrogen, but depending on the bacteria you have, the real free estrogen that can bind to your cells may be very different.”

The gut microbiome can also regulate testosterone, with studies showing microbial differences in men with high testosterone vs those with less.
 

What Patients Can Do Now

Advances in the field of microbiome research — and the related “gut health” wellness craze — have spawned all kinds of new microbiome-based products: Like over-the-counter probiotic supplements and at-home test kits, which let you send a stool sample for analysis to reveal microbiome health and personalized diet recommendations.

But the science behind these tests is still evolving, said Dr. Damman. “The clinical inferences and applications are still pretty limited.”

For most people, the first step to fostering healthier microbial metabolites is much simpler: Diversify your diet.

“A lot of folks are missing that diversity,” Dr. Damman said.

“Eat foods and experiment with foods that you might not eat all the time,” especially fruits, vegetables, nuts, seeds, and beans.

Another strategy: Eat foods with probiotic bacteria. “I view it as an insurance policy,” said Dr. Versalovic, “fortifying my gut with probiotics, with daily yogurt, for example, at breakfast.”

Fermented foods like kimchi and kombucha can also increase microbial diversity and can even contain health-promoting postbiotics, research shows.

As for probiotic supplements, the jury’s still out.

Certain strains of probiotic bacteria may be beneficial for some patients, like those with diarrhea, Crohn’s disease, and irritable bowel syndrome, according to World Gastroenterology Organisation guidelines.

As with other interventions, individual responses can vary. A Stanford study showed that some people with metabolic syndrome improved when taking a probiotic, while others didn’t. Both groups had key differences in gut bacteria and dietary habits.

For best results, such microbiome-based interventions will need to be personalized, experts say. And the technology to do that is coming sooner than you might think.
 

Microbiome’s Medical Future: ‘We Are on the Cusp of a New Era’

In just a few years, artificial intelligence (AI) models could predict gut microbial composition based on data such as dietary habits and household characteristics, Dr. Kumar said.

Advancements in metabolomics and bioinformatics could soon help physicians and patients personalize their treatment approaches, said Dr. Damman.

One focus will be on fortifying the gut with whatever it lacks.

“In those individuals where certain microbes are missing, (a) how could we add them back potentially in a rational, science-driven way, and (b) maybe some of those factors that the microbes are producing out the other ends, you could give directly,” said Dr. Damman.

For example, multiple companies make butyrate as a dietary supplement, although the research is too early to support widespread use. Another option could be eating something that spurs butyrate production. One small study found that a fiber supplement formulated to increase butyrate levels in the colon reduced participants’ systolic blood pressure by an average of six points.

Another option could be synbiotics, products that combine bacteria and the food source they feed on. “If you just give a diet-based therapy, it is not going to work as much. Because what if that diet needs certain bacteria to have these beneficial metabolites?” said Ashutosh Mangalam, PhD, associate professor of pathology at the University of Iowa Carver College of Medicine, Iowa City.

Dr. Mangalam studies links between bacterial metabolism of phytoestrogens in soy foods and multiple sclerosis (MS) development. He is using AI to understand differences in metabolites in patients with MS vs healthy controls to determine how to target them.

Gut microbial metabolites could also affect disease screening and intervention. What if gut microbe sequencing could predict a pregnant person’s risk of developing depression, something now assessed through simple questionnaires?

“Imagine that your doctor says, ‘Okay, give me a poop sample,’ ” Dr. Bernabé said. “Then they phenotype it, and then they put it in your electronic medical record, and they say, ‘Well, you have high likelihood of having a mood disorder down the line in your pregnancy. Why don’t we directly refer you to a provider now so you can follow up?’ ”

Research is already underway to understand how metabolites might be linked to pregnancy outcomes, complex regional pain syndrome, and anxiety. Researchers are also investigating whether supplementing our diets with things like prebiotic fibers, apple polyphenols, or tomato paste might influence metabolites. And fecal transplants that shift the gut microbiome and metabolites could have potential in diseases like unexplained atherosclerosis, post-COVID syndrome, and hidradenitis suppurativa.

Dr. Hazen’s discovery linking TMAO with cardiovascular risk has already changed clinical practice. A blood TMAO test can help identify patients at risk who may not have traditional risk factors. “Millions have been done,” Dr. Hazen said.

Meanwhile, his drug targeting the TMAO pathway inches closer to clinical trials.

“In an animal model, we elicit improvement in heart failure, renal disease, atherosclerosis, thrombosis, aortic aneurysm, and obesity,” Dr. Hazen said. The first clinical trials will focus on renal disease.

As with any drug, the road to approval takes time. And success is not guaranteed.

But Dr. Hazen for one is optimistic.

“We are on the cusp of a new era,” Dr. Hazen said. “Like when humans first discovered insulin and glucagon were hormones that impact sugar metabolism. We now recognize myriad new ‘hormones’ in the form of gut microbiome metabolites that impact our physiology and susceptibility to diseases.”
 

A version of this article first appeared on Medscape.com.

Meet your new patients.

You can’t see them, but trillions — maybe quadrillions — of them travel in and out of your practice every day. They’re hungry, mysterious, community-oriented, and small. Very, very small.

They’re the microbes occupying your current patients’ guts.

Someday soon, you’ll prescribe medicine not just for humans but also for these microbes.

“I am convinced in the future our medicine cabinets are going to have not just medications like a statin for treating us, but [also] pills that treat and inhibit an enzyme in our microbes and elicit a health benefit in some chronic disease,” said Stanley Hazen, MD, PhD, co-section head of Preventive Cardiology & Rehabilitation and director of the Center for Microbiome & Human Health at Cleveland Clinic, Cleveland, Ohio.

Evidence is mounting that the gut microbiome influences just about every major human disease. These trillions of microbes use our food to generate substances called metabolites that can protect or harm our health, with consequences reaching far beyond our gastrointestinal tracts.

Research has linked microbial metabolites to diabetes, cardiovascular disease, liver disease, obesity, high blood pressure, neurological disorders, depression, cancer, and more. Gastroenterologist Christopher Damman, MD, a clinical associate professor at the University of Washington Medical Center, Seattle, calls it a “growing theme” in microbiome science.

Now scientists are developing treatments targeting gut microbial pathways, designed to eliminate the bad metabolites and boost the good metabolites.

One close to human therapeutic intervention is an oral treatment from Dr. Hazen’s lab targeting the metabolite trimethylamine N-oxide (TMAO), a predictor of and contributor to both cardiovascular disease and chronic kidney disease. The drug, which blocks TMAO formation, is nearing clinical trials, Dr. Hazen said.

The advantage is safety. By targeting the microbe instead of, say, an enzyme, the host (your patient) must absorb little if any drug.

Implications for the future of medicine are huge. “Gut microbial pathways contribute to diabetes, obesity, virtually everything,” Dr. Hazen said. “Therapies that target gut microbiome processes will probably even be used for psychiatric disorders within, I’ll say, 10 or 20 years.”
 

The Science

About 100 trillion strains of bacteria live in our guts. As humans have evolved, so have they.

Between 70% and 90% come from the phyla Firmicutes and Bacteroidetes, with person-to-person variation shaped by genetics, environment, and lifestyle.

“Everyone’s microbiome is subtly different,” said Dr. Hazen. “So the combination of what they’re making is different. All these different biologically active compounds are influencing us in subtly different ways.”

How it works: When you eat, your microbes eat, breaking down food into metabolites that interact with the thin layer of epithelial cells lining your gut. Some can be absorbed through the lining and into your bloodstream, a phenomenon known as “leaky gut.” Once in your blood, they can trigger irritation and inflammation, potentially leading to a wide variety of health issues, from gas and bloating to autoimmune conditions and mood disorders.

“On the other side of the epithelial lining, you have some of the largest concentrations of immune cells,” said Narendra Kumar, PhD, associate professor of pharmaceutical sciences at Texas A&M University, College Station, Texas.

Metabolites can influence how these immune cells work, possibly explaining why each person’s immune system behaves distinctively.

Of the 1000-plus metabolites linked to the gut microbiome, scientists have identified several that matter.

Short-chain fatty acids. When we eat fiber, colon bacteria ferment it into the beneficial short-chain fatty acids acetate, propionate, and butyrate. These bind to receptors in muscle, liver, and fat tissue, affecting the secretion of gut hormones and peptides related to appetite, inflammation, energy expenditure, and fat oxidation.

Butyrate has been linked to health benefits. It supports the integrity of the gut’s lining, stifling pathogenic gut bacteria, fighting cancer-promoting inflammation, and protecting against obesity and diabetes. It can function as a prebiotic, helping beneficial bacteria thrive. And recent studies linked an abundance of butyrate-producing bacteria with reduced bone fracture risk and hospitalization for infectious disease.

TMAO and phenylacetylglutamine. When we eat foods rich in animal proteins — think eggs, milk, fish, and especially red meat — some gut bacteria convert nutrients like choline and L-carnitine into TMAO and phenylalanine into phenylacetylglutamine. Research conducted by Dr. Hazen’s lab and replicated by others has linked both metabolites to heart problems.

In a landmark study from Dr. Hazen’s group, healthy adults who went on to develop coronary artery disease had significantly higher plasma TMAO levels than those who did not wind up with the condition. The association remained strong, even after controlling for risk factors like age, sex, smoking, high blood pressure, and high cholesterol.

In preclinical studies, elevated TMAO enhanced cardiovascular disease. TMAO-producing microbes also accentuated cardiovascular disease phenotypes in mouse models, while blocking these pathways inhibited the phenotypes.

Research suggests TMAO may harm cardiomyocytes (cells that contract and relax the heart) in dozens of ways, such as activating the expression of proteins to promote hypertrophy and fibrosis, decreasing mitochondrial function, and disrupting calcium signaling.

Another study linked phenylacetylglutamine levels to cardiac event risk in patients with heart failure. Recent mechanistic investigations suggest the metabolite alters signaling in a beta-adrenergic receptor involved in our fight-or-flight response, said Hazen.

“It’s like a rheostat on the light switch, a dimmer switch, and it’s what’s called a negative allosteric modulator,” he said. “It’s the first time that this type of behavior has ever been shown to be present for a gut microbial metabolite and a host receptor.”

Tryptophan metabolites. Microbes in your colon can convert the amino acid tryptophan, also found in animal-based foods, into neurotransmitters like serotonin and melatonin.

“The enteric nervous system, the nervous system around the gut, is immense,” said James Versalovic, MD, PhD, professor of pathology and immunology at Baylor College of Medicine, Houston. “The gut-brain axis has become a very fertile area of research.”

Lesser-known tryptophan metabolites — like indole, tryptamine, and indoleethanol — have been linked to benefits like fortifying the gut barrier, promoting the release of glucagon-like peptide 1 to reduce appetite, and protecting the liver from hepatitis. However, indole can also spur the production of indoxyl sulfate, a toxin linked to chronic kidney disease. 

Bile acid byproducts. Your gut bugs also feast on (and transform) bile acids before they reabsorb and travel back to the liver.

Research is gaining traction on these secondary bile acids, which can affect inflammation and immune function in helpful and harmful ways.

One area of interest is how microbes break down hormones in bile. A recent study from Harvard showed that gut microbes convert corticoid hormones in bile into progestins, which could affect postpartum depression risk. And researchers are exploring the estrobolome — a gut microbial community dedicated to breaking down estrogen into its active form so it can be reabsorbed.

“Depending on the bacteria that you have, more or less can be recirculated back into your blood,” said Beatriz Peñalver Bernabé, PhD, an assistant professor of biomedical engineering and urology at the University of Illinois Chicago. “So you may be producing the same amount of estrogen, but depending on the bacteria you have, the real free estrogen that can bind to your cells may be very different.”

The gut microbiome can also regulate testosterone, with studies showing microbial differences in men with high testosterone vs those with less.
 

What Patients Can Do Now

Advances in the field of microbiome research — and the related “gut health” wellness craze — have spawned all kinds of new microbiome-based products: Like over-the-counter probiotic supplements and at-home test kits, which let you send a stool sample for analysis to reveal microbiome health and personalized diet recommendations.

But the science behind these tests is still evolving, said Dr. Damman. “The clinical inferences and applications are still pretty limited.”

For most people, the first step to fostering healthier microbial metabolites is much simpler: Diversify your diet.

“A lot of folks are missing that diversity,” Dr. Damman said.

“Eat foods and experiment with foods that you might not eat all the time,” especially fruits, vegetables, nuts, seeds, and beans.

Another strategy: Eat foods with probiotic bacteria. “I view it as an insurance policy,” said Dr. Versalovic, “fortifying my gut with probiotics, with daily yogurt, for example, at breakfast.”

Fermented foods like kimchi and kombucha can also increase microbial diversity and can even contain health-promoting postbiotics, research shows.

As for probiotic supplements, the jury’s still out.

Certain strains of probiotic bacteria may be beneficial for some patients, like those with diarrhea, Crohn’s disease, and irritable bowel syndrome, according to World Gastroenterology Organisation guidelines.

As with other interventions, individual responses can vary. A Stanford study showed that some people with metabolic syndrome improved when taking a probiotic, while others didn’t. Both groups had key differences in gut bacteria and dietary habits.

For best results, such microbiome-based interventions will need to be personalized, experts say. And the technology to do that is coming sooner than you might think.
 

Microbiome’s Medical Future: ‘We Are on the Cusp of a New Era’

In just a few years, artificial intelligence (AI) models could predict gut microbial composition based on data such as dietary habits and household characteristics, Dr. Kumar said.

Advancements in metabolomics and bioinformatics could soon help physicians and patients personalize their treatment approaches, said Dr. Damman.

One focus will be on fortifying the gut with whatever it lacks.

“In those individuals where certain microbes are missing, (a) how could we add them back potentially in a rational, science-driven way, and (b) maybe some of those factors that the microbes are producing out the other ends, you could give directly,” said Dr. Damman.

For example, multiple companies make butyrate as a dietary supplement, although the research is too early to support widespread use. Another option could be eating something that spurs butyrate production. One small study found that a fiber supplement formulated to increase butyrate levels in the colon reduced participants’ systolic blood pressure by an average of six points.

Another option could be synbiotics, products that combine bacteria and the food source they feed on. “If you just give a diet-based therapy, it is not going to work as much. Because what if that diet needs certain bacteria to have these beneficial metabolites?” said Ashutosh Mangalam, PhD, associate professor of pathology at the University of Iowa Carver College of Medicine, Iowa City.

Dr. Mangalam studies links between bacterial metabolism of phytoestrogens in soy foods and multiple sclerosis (MS) development. He is using AI to understand differences in metabolites in patients with MS vs healthy controls to determine how to target them.

Gut microbial metabolites could also affect disease screening and intervention. What if gut microbe sequencing could predict a pregnant person’s risk of developing depression, something now assessed through simple questionnaires?

“Imagine that your doctor says, ‘Okay, give me a poop sample,’ ” Dr. Bernabé said. “Then they phenotype it, and then they put it in your electronic medical record, and they say, ‘Well, you have high likelihood of having a mood disorder down the line in your pregnancy. Why don’t we directly refer you to a provider now so you can follow up?’ ”

Research is already underway to understand how metabolites might be linked to pregnancy outcomes, complex regional pain syndrome, and anxiety. Researchers are also investigating whether supplementing our diets with things like prebiotic fibers, apple polyphenols, or tomato paste might influence metabolites. And fecal transplants that shift the gut microbiome and metabolites could have potential in diseases like unexplained atherosclerosis, post-COVID syndrome, and hidradenitis suppurativa.

Dr. Hazen’s discovery linking TMAO with cardiovascular risk has already changed clinical practice. A blood TMAO test can help identify patients at risk who may not have traditional risk factors. “Millions have been done,” Dr. Hazen said.

Meanwhile, his drug targeting the TMAO pathway inches closer to clinical trials.

“In an animal model, we elicit improvement in heart failure, renal disease, atherosclerosis, thrombosis, aortic aneurysm, and obesity,” Dr. Hazen said. The first clinical trials will focus on renal disease.

As with any drug, the road to approval takes time. And success is not guaranteed.

But Dr. Hazen for one is optimistic.

“We are on the cusp of a new era,” Dr. Hazen said. “Like when humans first discovered insulin and glucagon were hormones that impact sugar metabolism. We now recognize myriad new ‘hormones’ in the form of gut microbiome metabolites that impact our physiology and susceptibility to diseases.”
 

A version of this article first appeared on Medscape.com.

Despite the “remarkable progress” in cancer research and care, cancer remains “an ongoing public health challenge,” which requires significant attention and funding, according to the Cancer Progress Report 2024 from the American Association for Cancer Research (AACR).

The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted. 

One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.

These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
 

Inside the Report: Big Progress

Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives. 

According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.

The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.

“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.” 

The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.

“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
 

The Gaps

Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.

“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.

The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.

Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.

Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.

The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.

Financial toxicity remains prevalent as well.

The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.

For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.

On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
 

The Path Forward

Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.

“I am excited about what the future holds for cancer research, and especially for patient care,” she said. 

However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.

Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.

The AACR report specifically calls on Congress to:

• Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
• Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
• Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
• Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.

By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”

A version of this article first appeared on Medscape.com.

Despite the “remarkable progress” in cancer research and care, cancer remains “an ongoing public health challenge,” which requires significant attention and funding, according to the Cancer Progress Report 2024 from the American Association for Cancer Research (AACR).

The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted. 

One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.

These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
 

Inside the Report: Big Progress

Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives. 

According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.

The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.

“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.” 

The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.

“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
 

The Gaps

Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.

“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.

The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.

Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.

Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.

The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.

Financial toxicity remains prevalent as well.

The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.

For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.

On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
 

The Path Forward

Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.

“I am excited about what the future holds for cancer research, and especially for patient care,” she said. 

However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.

Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.

The AACR report specifically calls on Congress to:

• Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
• Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
• Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
• Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.

By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”

A version of this article first appeared on Medscape.com.

Despite the “remarkable progress” in cancer research and care, cancer remains “an ongoing public health challenge,” which requires significant attention and funding, according to the Cancer Progress Report 2024 from the American Association for Cancer Research (AACR).

The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted. 

One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.

These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
 

Inside the Report: Big Progress

Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives. 

According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.

The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.

“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.” 

The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.

“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
 

The Gaps

Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.

“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.

The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.

Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.

Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.

The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.

Financial toxicity remains prevalent as well.

The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.

For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.

On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
 

The Path Forward

Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.

“I am excited about what the future holds for cancer research, and especially for patient care,” she said. 

However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.

Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.

The AACR report specifically calls on Congress to:

• Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
• Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
• Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
• Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.

By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”

A version of this article first appeared on Medscape.com.

MILAN — Recent research allaying concerns about suicidality linked to glucagon-like peptide 1 (GLP-1) receptor agonists, along with evidence of these agents’ potential psychiatric and cognitive benefits, has prompted the lead investigator of a major analysis to urge researchers to explore the potential of these drugs for mental illness.

“So far, we’ve been talking about the safety from a neuropsychiatric perspective in diabetes, but there is also the safety and benefit in people with mental disorders,” Riccardo De Giorgi, MD, PhD, from the Department of Psychiatry, University of Oxford in England, said in an interview.

The results of the meta-analysis were previously reported by this news organization and reviewed by Dr. De Giorgi at the 37th European College of Neuropsychopharmacology (ECNP) Congress. Dr. De Giorgi broached whether GLP-1 inhibitors such as semaglutide might also offer the same benefits in patients without diabetes as they do in those with diabetes, in terms of cognitive deficits and substance use or mood disorders.

Noting that GLP-1s are not approved for psychiatric disorders, Dr. De Giorgi said it can’t be assumed that the “metabolic or maybe even more general mechanisms that are being modified with these medications in diabetes or even in obesity are the same for people with psychiatric disorders. We’re talking about very different things. From a clinical perspective, you could do real harm,” he told this news organization.

Yet Dr. De Giorgi emphasized the importance of exploring the potential benefits of these medications in psychiatry.

“From a research perspective ... I am very worried about missing an opportunity here. This happened with rimonabant, a cannabis medication that was used for weight loss back in 2012 and was withdrawn quite dramatically in Europe immediately after licensing because it increased suicide risk. Since then, nobody has been touching the cannabinoid system, and that’s a shame because in psychiatry, we don’t have that much we can work on. So we don’t want to miss an opportunity with the GLP-1 system — that’s why we need to be cautious and look at safety first,” he said.
 

Signal of Efficacy?

Dr. De Giorgi’s research suggested several potential neurobiological effects of GLP-1 inhibition in diabetes research.

“There was a bit of a signal specifically for the big three dementias — vascular, Lewy Body, and frontotemporal — although there was not enough power,” he reported. “We also saw a reduced risk in nicotine misuse, especially amongst other substance use disorders ... and finally a more tentative association for reduced depression.”

He noted that GLP-1s for psychiatric illness likely have limitations and may not cure mental disorders but could help specific subsets of patients. Rather than aiming for large-scale studies, the focus should be on small, incremental studies to advance the research.

Asked by the session chair, John Cryan, PhD, from University College Cork in Ireland, and chair of the ECNP Scientific Committee whether improvement in patients’ mood could be attributed to weight loss, Dr. De Giorgi replied no.

“We now have quite a lot of studies that show that if there is an effect or association it is seen quite a bit earlier than any weight loss. Remember, weight loss takes quite a lot of time, and at quite high doses, but more provocatively, even if that’s the case, does it matter? We as psychiatrists do worry that we need to disentangle these things, but they don’t do that in cardiology, for example. If they see a benefit in mortality they don’t really care if it’s specifically an effect on heart failure or ischemic disease,” said Dr. De Giorgi.

Regardless of their neuropsychiatric potential, the cardiometabolic benefits of GLP-1 inhibitors are sorely needed in the psychiatric population, noted two experts in a recent JAMA Psychiatry viewpoint article.

Sri Mahavir Agarwal, MD, PhD, and Margaret Hahn, MD, PhD, from the University of Toronto and the Schizophrenia Division at the Centre for Addiction and Mental Health, in Toronto, Ontario, Canada, pointed out that “individuals with severe mental illness (SMI) have exceedingly high rates of metabolic comorbidity; three of four are overweight or obese, whereas the prevalence of type 2 diabetes (T2D) is several-fold higher than in the general population. Consequently, individuals with SMI die 15-20 years earlier from cardiovascular disease (CVD) than do those in the general population with CVD,” they noted.

“The arrival of semaglutide has infused significant enthusiasm in the field of mental health research. The proximal effects of weight and related CV comorbidities are significant in themselves. It is plausible that semaglutide could act through neurogenesis or secondary benefits of improving metabolic health on other important outcomes, such as cognitive health and quality of life, thereby filling an unmet need in the treatment of SMI,” Dr. Agarwal and Dr. Hahn added.
 

An Exciting Opportunity

Current research investigating GLP-1s in psychiatry and neurology is increasingly focused on neuroinflammation, said Dr. De Giorgi.

Research shows significant evidence that certain medications may help reduce dysfunctional inflammatory processes linked to various cognitive and psychiatric disorders, he added.

Many patients with established psychiatric conditions also have physical health issues, which contribute to increased mortality risk, said Dr. De Giorgi. It’s crucial to understand that, if these treatments improve mortality outcomes for psychiatric patients, the specific mechanisms involved are secondary to the results. Psychiatrists must be equipped to prescribe, manage, and initiate these therapies.

“While trials involving psychosis patients are ongoing, we are making progress and should seize this opportunity” said Dr. De Giorgi.

Dr. Cryan agreed: “I think we’ll get there. What these drugs have shown is that you can, through a single mechanism, have multitude effects related to brain-body interactions, and why not focus that on mood and anxiety and cognitive performance? It’s exciting no matter what. We now need to do longitudinal, cross-sectional, placebo-controlled trials in specific patient populations.”

This study received funding from the National Institute for Health and Care Research Oxford Health Biomedical Research Centre and Medical Research Council. Dr. De Giorgi’s coauthors reported receiving funding for other work from Novo Nordisk, Five Lives, Cognetivity Ltd., Cognex, P1vital, Lundbeck, Servier, UCB, Zogenix, Johnson & Johnson, and Syndesi. Dr. Cryan reported no relevant disclosures.

A version of this article appeared on Medscape.com.

MILAN — Recent research allaying concerns about suicidality linked to glucagon-like peptide 1 (GLP-1) receptor agonists, along with evidence of these agents’ potential psychiatric and cognitive benefits, has prompted the lead investigator of a major analysis to urge researchers to explore the potential of these drugs for mental illness.

“So far, we’ve been talking about the safety from a neuropsychiatric perspective in diabetes, but there is also the safety and benefit in people with mental disorders,” Riccardo De Giorgi, MD, PhD, from the Department of Psychiatry, University of Oxford in England, said in an interview.

The results of the meta-analysis were previously reported by this news organization and reviewed by Dr. De Giorgi at the 37th European College of Neuropsychopharmacology (ECNP) Congress. Dr. De Giorgi broached whether GLP-1 inhibitors such as semaglutide might also offer the same benefits in patients without diabetes as they do in those with diabetes, in terms of cognitive deficits and substance use or mood disorders.

Noting that GLP-1s are not approved for psychiatric disorders, Dr. De Giorgi said it can’t be assumed that the “metabolic or maybe even more general mechanisms that are being modified with these medications in diabetes or even in obesity are the same for people with psychiatric disorders. We’re talking about very different things. From a clinical perspective, you could do real harm,” he told this news organization.

Yet Dr. De Giorgi emphasized the importance of exploring the potential benefits of these medications in psychiatry.

“From a research perspective ... I am very worried about missing an opportunity here. This happened with rimonabant, a cannabis medication that was used for weight loss back in 2012 and was withdrawn quite dramatically in Europe immediately after licensing because it increased suicide risk. Since then, nobody has been touching the cannabinoid system, and that’s a shame because in psychiatry, we don’t have that much we can work on. So we don’t want to miss an opportunity with the GLP-1 system — that’s why we need to be cautious and look at safety first,” he said.
 

Signal of Efficacy?

Dr. De Giorgi’s research suggested several potential neurobiological effects of GLP-1 inhibition in diabetes research.

“There was a bit of a signal specifically for the big three dementias — vascular, Lewy Body, and frontotemporal — although there was not enough power,” he reported. “We also saw a reduced risk in nicotine misuse, especially amongst other substance use disorders ... and finally a more tentative association for reduced depression.”

He noted that GLP-1s for psychiatric illness likely have limitations and may not cure mental disorders but could help specific subsets of patients. Rather than aiming for large-scale studies, the focus should be on small, incremental studies to advance the research.

Asked by the session chair, John Cryan, PhD, from University College Cork in Ireland, and chair of the ECNP Scientific Committee whether improvement in patients’ mood could be attributed to weight loss, Dr. De Giorgi replied no.

“We now have quite a lot of studies that show that if there is an effect or association it is seen quite a bit earlier than any weight loss. Remember, weight loss takes quite a lot of time, and at quite high doses, but more provocatively, even if that’s the case, does it matter? We as psychiatrists do worry that we need to disentangle these things, but they don’t do that in cardiology, for example. If they see a benefit in mortality they don’t really care if it’s specifically an effect on heart failure or ischemic disease,” said Dr. De Giorgi.

Regardless of their neuropsychiatric potential, the cardiometabolic benefits of GLP-1 inhibitors are sorely needed in the psychiatric population, noted two experts in a recent JAMA Psychiatry viewpoint article.

Sri Mahavir Agarwal, MD, PhD, and Margaret Hahn, MD, PhD, from the University of Toronto and the Schizophrenia Division at the Centre for Addiction and Mental Health, in Toronto, Ontario, Canada, pointed out that “individuals with severe mental illness (SMI) have exceedingly high rates of metabolic comorbidity; three of four are overweight or obese, whereas the prevalence of type 2 diabetes (T2D) is several-fold higher than in the general population. Consequently, individuals with SMI die 15-20 years earlier from cardiovascular disease (CVD) than do those in the general population with CVD,” they noted.

“The arrival of semaglutide has infused significant enthusiasm in the field of mental health research. The proximal effects of weight and related CV comorbidities are significant in themselves. It is plausible that semaglutide could act through neurogenesis or secondary benefits of improving metabolic health on other important outcomes, such as cognitive health and quality of life, thereby filling an unmet need in the treatment of SMI,” Dr. Agarwal and Dr. Hahn added.
 

An Exciting Opportunity

Current research investigating GLP-1s in psychiatry and neurology is increasingly focused on neuroinflammation, said Dr. De Giorgi.

Research shows significant evidence that certain medications may help reduce dysfunctional inflammatory processes linked to various cognitive and psychiatric disorders, he added.

Many patients with established psychiatric conditions also have physical health issues, which contribute to increased mortality risk, said Dr. De Giorgi. It’s crucial to understand that, if these treatments improve mortality outcomes for psychiatric patients, the specific mechanisms involved are secondary to the results. Psychiatrists must be equipped to prescribe, manage, and initiate these therapies.

“While trials involving psychosis patients are ongoing, we are making progress and should seize this opportunity” said Dr. De Giorgi.

Dr. Cryan agreed: “I think we’ll get there. What these drugs have shown is that you can, through a single mechanism, have multitude effects related to brain-body interactions, and why not focus that on mood and anxiety and cognitive performance? It’s exciting no matter what. We now need to do longitudinal, cross-sectional, placebo-controlled trials in specific patient populations.”

This study received funding from the National Institute for Health and Care Research Oxford Health Biomedical Research Centre and Medical Research Council. Dr. De Giorgi’s coauthors reported receiving funding for other work from Novo Nordisk, Five Lives, Cognetivity Ltd., Cognex, P1vital, Lundbeck, Servier, UCB, Zogenix, Johnson & Johnson, and Syndesi. Dr. Cryan reported no relevant disclosures.

A version of this article appeared on Medscape.com.

MILAN — Recent research allaying concerns about suicidality linked to glucagon-like peptide 1 (GLP-1) receptor agonists, along with evidence of these agents’ potential psychiatric and cognitive benefits, has prompted the lead investigator of a major analysis to urge researchers to explore the potential of these drugs for mental illness.

“So far, we’ve been talking about the safety from a neuropsychiatric perspective in diabetes, but there is also the safety and benefit in people with mental disorders,” Riccardo De Giorgi, MD, PhD, from the Department of Psychiatry, University of Oxford in England, said in an interview.

The results of the meta-analysis were previously reported by this news organization and reviewed by Dr. De Giorgi at the 37th European College of Neuropsychopharmacology (ECNP) Congress. Dr. De Giorgi broached whether GLP-1 inhibitors such as semaglutide might also offer the same benefits in patients without diabetes as they do in those with diabetes, in terms of cognitive deficits and substance use or mood disorders.

Noting that GLP-1s are not approved for psychiatric disorders, Dr. De Giorgi said it can’t be assumed that the “metabolic or maybe even more general mechanisms that are being modified with these medications in diabetes or even in obesity are the same for people with psychiatric disorders. We’re talking about very different things. From a clinical perspective, you could do real harm,” he told this news organization.

Yet Dr. De Giorgi emphasized the importance of exploring the potential benefits of these medications in psychiatry.

“From a research perspective ... I am very worried about missing an opportunity here. This happened with rimonabant, a cannabis medication that was used for weight loss back in 2012 and was withdrawn quite dramatically in Europe immediately after licensing because it increased suicide risk. Since then, nobody has been touching the cannabinoid system, and that’s a shame because in psychiatry, we don’t have that much we can work on. So we don’t want to miss an opportunity with the GLP-1 system — that’s why we need to be cautious and look at safety first,” he said.
 

Signal of Efficacy?

Dr. De Giorgi’s research suggested several potential neurobiological effects of GLP-1 inhibition in diabetes research.

“There was a bit of a signal specifically for the big three dementias — vascular, Lewy Body, and frontotemporal — although there was not enough power,” he reported. “We also saw a reduced risk in nicotine misuse, especially amongst other substance use disorders ... and finally a more tentative association for reduced depression.”

He noted that GLP-1s for psychiatric illness likely have limitations and may not cure mental disorders but could help specific subsets of patients. Rather than aiming for large-scale studies, the focus should be on small, incremental studies to advance the research.

Asked by the session chair, John Cryan, PhD, from University College Cork in Ireland, and chair of the ECNP Scientific Committee whether improvement in patients’ mood could be attributed to weight loss, Dr. De Giorgi replied no.

“We now have quite a lot of studies that show that if there is an effect or association it is seen quite a bit earlier than any weight loss. Remember, weight loss takes quite a lot of time, and at quite high doses, but more provocatively, even if that’s the case, does it matter? We as psychiatrists do worry that we need to disentangle these things, but they don’t do that in cardiology, for example. If they see a benefit in mortality they don’t really care if it’s specifically an effect on heart failure or ischemic disease,” said Dr. De Giorgi.

Regardless of their neuropsychiatric potential, the cardiometabolic benefits of GLP-1 inhibitors are sorely needed in the psychiatric population, noted two experts in a recent JAMA Psychiatry viewpoint article.

Sri Mahavir Agarwal, MD, PhD, and Margaret Hahn, MD, PhD, from the University of Toronto and the Schizophrenia Division at the Centre for Addiction and Mental Health, in Toronto, Ontario, Canada, pointed out that “individuals with severe mental illness (SMI) have exceedingly high rates of metabolic comorbidity; three of four are overweight or obese, whereas the prevalence of type 2 diabetes (T2D) is several-fold higher than in the general population. Consequently, individuals with SMI die 15-20 years earlier from cardiovascular disease (CVD) than do those in the general population with CVD,” they noted.

“The arrival of semaglutide has infused significant enthusiasm in the field of mental health research. The proximal effects of weight and related CV comorbidities are significant in themselves. It is plausible that semaglutide could act through neurogenesis or secondary benefits of improving metabolic health on other important outcomes, such as cognitive health and quality of life, thereby filling an unmet need in the treatment of SMI,” Dr. Agarwal and Dr. Hahn added.
 

An Exciting Opportunity

Current research investigating GLP-1s in psychiatry and neurology is increasingly focused on neuroinflammation, said Dr. De Giorgi.

Research shows significant evidence that certain medications may help reduce dysfunctional inflammatory processes linked to various cognitive and psychiatric disorders, he added.

Many patients with established psychiatric conditions also have physical health issues, which contribute to increased mortality risk, said Dr. De Giorgi. It’s crucial to understand that, if these treatments improve mortality outcomes for psychiatric patients, the specific mechanisms involved are secondary to the results. Psychiatrists must be equipped to prescribe, manage, and initiate these therapies.

“While trials involving psychosis patients are ongoing, we are making progress and should seize this opportunity” said Dr. De Giorgi.

Dr. Cryan agreed: “I think we’ll get there. What these drugs have shown is that you can, through a single mechanism, have multitude effects related to brain-body interactions, and why not focus that on mood and anxiety and cognitive performance? It’s exciting no matter what. We now need to do longitudinal, cross-sectional, placebo-controlled trials in specific patient populations.”

This study received funding from the National Institute for Health and Care Research Oxford Health Biomedical Research Centre and Medical Research Council. Dr. De Giorgi’s coauthors reported receiving funding for other work from Novo Nordisk, Five Lives, Cognetivity Ltd., Cognex, P1vital, Lundbeck, Servier, UCB, Zogenix, Johnson & Johnson, and Syndesi. Dr. Cryan reported no relevant disclosures.

A version of this article appeared on Medscape.com.

Digital pathology assisted by artificial intelligence (AI) has the potential to transform the diagnosis and treatment of fibrotic liver disease in the next few years and to reshape clinical trials, clearing the way for new therapies.

Although the technology is not yet approved for routine clinical use, it’s constantly improving and aims to address the limitations inherent in today’s pathology processes.

“You do a biopsy, but instead of having a pathologist read it with their very rough scores of stage 1, 2, or 3, you read it by an AI-driven machine that can quantify it with a score of 1.5 or 1.75 instead of 1 or 2,” Vlad Ratziu, MD, PhD, professor of hepatology at the Sorbonne Université and Hôpital Pitié-Salpêtrière Medical School in Paris, France, and coeditor of The Journal of Hepatology, said in an interview.

“The technology is automated, more sensitive to change, and more highly quantitative. It has implications for liver disease diagnoses, clinical trials, and treatments,” added Dr. Ratziu, who has written about the promise and challenges inherent in developing treatments for metabolic dysfunction–associated steatotic liver disease (MASLD).

To explore the potential impact of AI-powered technologies for the clinic, this news organization spoke with representatives from three companies identified by Dr. Ratziu as leaders in the field: HistoIndex, PathAI, and PharmaNest. Each company uses proprietary technology augmented by AI, and their tools have been used in published trials.
 

Moving Toward Better Diagnoses and Disease Management

The traditional approach for staging liver fibrosis relies on trained pathologists manually evaluating stained tissue samples obtained from biopsies of the liver.

But this method, though still considered the gold standard, doesn’t always provide the granularity needed for an accurate diagnosis or a reliable assessment in clinical trials, said Dean Tai, PhD, HistoIndex’s cofounder and chief scientific officer.

Although noninvasive tests (NITs), alone or with traditional histologic examination, are increasingly used during clinical management because they are less invasive and more repeatable for disease monitoring, they are limited in their precision and ability to provide comprehensive information, Dr. Tai said. That’s because “no single NIT or single-dimensional measurement of a biomarker offers a full assessment of disease activity, fibrogenic drive, and fibrosis load.”

In contrast, AI provides “a highly reproducible and objective assessment of liver fibrosis severity,” he said. “It eliminates the variability associated with staining methods, while revealing changes in the nano-architecture and morphology of collagen fibers not discernible by the human eye or current NITs, especially in the early stages of fibrosis or in cases of simultaneous progression and regression.”

Mathieu Petitjean, PhD, founder and CEO of PharmaNest, has a similar view. 

Although degree of liver fibrosis is associated with long-term outcomes of patients with MASLD, “poor detection thresholds due to their categorical nature mean that small and relevant changes are not reflected by changes in staging,” he said. “The reliable detection [with AI] of subtle changes in the phenotypes of fibrosis will significantly enrich the understanding of progression and regression of fibrosis severity.”

The ability of AI-based tools to see patterns the human eye cannot also means they could “help in predicting which patient may respond to a drug, in order to get the right treatments to the right patients as soon as possible,” said Katy Wack, PhD, vice president of clinical development at PathAI.

“Additionally, AI-based algorithms have been developed to provide more quantitative continuous scores to better capture change and discover new tissue-based biomarkers, which may be prognostic or predictive of clinical benefit,” she said. 

Such tools are currently undergoing testing and validation for use in trials and diagnostically.

The standardization and reproducibility offered by AI-driven technology could facilitate more consistent diagnoses across different healthcare settings, Dr. Tai suggested. “As the integration of the technology with other blood-, imaging-, and omics-based techniques evolves, it may enable earlier detection of liver diseases, more accurate monitoring of disease progression, and better evaluation of treatment responses, ultimately improving patient care and outcomes.”
 

More Effective Clinical Trials

The limitations of conventional pathology may be responsible, at least in part, for the repeated failure of novel compounds to move from phase 2 to phase 3 clinical trials, and from clinical trials to approval, the sources agreed.

“In clinical trials, patients are subject to enrollment criteria using liver biopsies, which are scored with a composite scoring system involving four different histologic components to grade and stage the disease,” Dr. Wack noted. 

However, there is wide variability between pathologists on biopsy scoring, and an individual pathologist presented with the same sample may give it a different score after some time has passed, she said.

That means “we are using a nonstandardized and inconsistent scoring system to determine whether a patient can be enrolled or not into a trial,” Dr. Wack said. 

The change in the composite score over a follow-up period, usually 1-2 years, determines whether a patient has responded to the candidate drug and, ultimately, whether that drug could be considered for approval, Dr. Wack said.

Because scores at the baseline and follow-up timepoints are not precise and inconsistent across pathologist readers, and even the same reader over time, there are often many “false-positive” and “false-negative” responses that can result in potential therapeutics either failing or succeeding in clinical trials, she said.

To address this variability in biopsy scoring as it relates to clinical trials, regulatory bodies have recommended a consensus approach, in which multiple pathologists read the same biopsy independently and a median score is used, or pathologists convene to come to an agreement, Dr. Wack said. 

“This is a very costly and burdensome approach and is still subject to interconsensus panel variation,” she said.

The introduction of digital pathology using validated digital viewers, where pathologists can view a glass slide digitally and pan and zoom over the image as they can with a microscope, means that many pathologists can read the same slide in parallel, she explained.

“If they need to discuss, they can do so efficiently over a phone call, each using their own computer screen and shared annotation tools to facilitate their discussion.”

Although this consensus approach can improve consistency, it still leads to variability in scoring across different groups of pathologists, Dr. Wack said.

This is where AI-assisted pathology comes into play.

“With this approach, a pathologist still views the image digitally, but an algorithm has predicted and highlighted key features and recommended quantitative scores,” she said.

This approach has been shown to increase precision for pathologists, thereby increasing reproducibility and standardizing scoring across timepoints and clinical trials.
 

What’s Ahead

These AI tools could address pathology’s lack of scalability, the result of a limited number of trained pathologists capable of doing liver biopsy assessments, Dr. Tai said. 

“Digital pathology workflows enable the transformation of conventional histologic glass slides into large digital images using scanners, allowing significant productivity gains in terms of workflow and collaboration,” he said.

Although AI-assisted pathology tools are still being validated, their promise for improving diagnoses and uncovering new treatments is clear, the interviewees agreed.

Extending its use to stage fibrosis in other liver diseases, such as primary biliary cholangitis, primary sclerosing cholangitis, and alcoholic liver disease, is also in progress on an experimental basis but will take time to validate.

“The landscape will evolve quickly in the coming 3-4 years,” Dr. Petitjean predicted. “To start, their intended use will likely be limited to a decision-support tool to enhance the performance of pathologists and perhaps stratify or triage cases sent for routine vs expert review.”

Dr. Petitjean even suggested that the increasing role of NITs and the amount of data being generated prospectively and retrospectively around liver biomarkers could mean that liver biopsies might not be needed one day.

A version of this article appeared on Medscape.com.

Digital pathology assisted by artificial intelligence (AI) has the potential to transform the diagnosis and treatment of fibrotic liver disease in the next few years and to reshape clinical trials, clearing the way for new therapies.

Although the technology is not yet approved for routine clinical use, it’s constantly improving and aims to address the limitations inherent in today’s pathology processes.

“You do a biopsy, but instead of having a pathologist read it with their very rough scores of stage 1, 2, or 3, you read it by an AI-driven machine that can quantify it with a score of 1.5 or 1.75 instead of 1 or 2,” Vlad Ratziu, MD, PhD, professor of hepatology at the Sorbonne Université and Hôpital Pitié-Salpêtrière Medical School in Paris, France, and coeditor of The Journal of Hepatology, said in an interview.

“The technology is automated, more sensitive to change, and more highly quantitative. It has implications for liver disease diagnoses, clinical trials, and treatments,” added Dr. Ratziu, who has written about the promise and challenges inherent in developing treatments for metabolic dysfunction–associated steatotic liver disease (MASLD).

To explore the potential impact of AI-powered technologies for the clinic, this news organization spoke with representatives from three companies identified by Dr. Ratziu as leaders in the field: HistoIndex, PathAI, and PharmaNest. Each company uses proprietary technology augmented by AI, and their tools have been used in published trials.
 

Moving Toward Better Diagnoses and Disease Management

The traditional approach for staging liver fibrosis relies on trained pathologists manually evaluating stained tissue samples obtained from biopsies of the liver.

But this method, though still considered the gold standard, doesn’t always provide the granularity needed for an accurate diagnosis or a reliable assessment in clinical trials, said Dean Tai, PhD, HistoIndex’s cofounder and chief scientific officer.

Although noninvasive tests (NITs), alone or with traditional histologic examination, are increasingly used during clinical management because they are less invasive and more repeatable for disease monitoring, they are limited in their precision and ability to provide comprehensive information, Dr. Tai said. That’s because “no single NIT or single-dimensional measurement of a biomarker offers a full assessment of disease activity, fibrogenic drive, and fibrosis load.”

In contrast, AI provides “a highly reproducible and objective assessment of liver fibrosis severity,” he said. “It eliminates the variability associated with staining methods, while revealing changes in the nano-architecture and morphology of collagen fibers not discernible by the human eye or current NITs, especially in the early stages of fibrosis or in cases of simultaneous progression and regression.”

Mathieu Petitjean, PhD, founder and CEO of PharmaNest, has a similar view. 

Although degree of liver fibrosis is associated with long-term outcomes of patients with MASLD, “poor detection thresholds due to their categorical nature mean that small and relevant changes are not reflected by changes in staging,” he said. “The reliable detection [with AI] of subtle changes in the phenotypes of fibrosis will significantly enrich the understanding of progression and regression of fibrosis severity.”

The ability of AI-based tools to see patterns the human eye cannot also means they could “help in predicting which patient may respond to a drug, in order to get the right treatments to the right patients as soon as possible,” said Katy Wack, PhD, vice president of clinical development at PathAI.

“Additionally, AI-based algorithms have been developed to provide more quantitative continuous scores to better capture change and discover new tissue-based biomarkers, which may be prognostic or predictive of clinical benefit,” she said. 

Such tools are currently undergoing testing and validation for use in trials and diagnostically.

The standardization and reproducibility offered by AI-driven technology could facilitate more consistent diagnoses across different healthcare settings, Dr. Tai suggested. “As the integration of the technology with other blood-, imaging-, and omics-based techniques evolves, it may enable earlier detection of liver diseases, more accurate monitoring of disease progression, and better evaluation of treatment responses, ultimately improving patient care and outcomes.”
 

More Effective Clinical Trials

The limitations of conventional pathology may be responsible, at least in part, for the repeated failure of novel compounds to move from phase 2 to phase 3 clinical trials, and from clinical trials to approval, the sources agreed.

“In clinical trials, patients are subject to enrollment criteria using liver biopsies, which are scored with a composite scoring system involving four different histologic components to grade and stage the disease,” Dr. Wack noted. 

However, there is wide variability between pathologists on biopsy scoring, and an individual pathologist presented with the same sample may give it a different score after some time has passed, she said.

That means “we are using a nonstandardized and inconsistent scoring system to determine whether a patient can be enrolled or not into a trial,” Dr. Wack said. 

The change in the composite score over a follow-up period, usually 1-2 years, determines whether a patient has responded to the candidate drug and, ultimately, whether that drug could be considered for approval, Dr. Wack said.

Because scores at the baseline and follow-up timepoints are not precise and inconsistent across pathologist readers, and even the same reader over time, there are often many “false-positive” and “false-negative” responses that can result in potential therapeutics either failing or succeeding in clinical trials, she said.

To address this variability in biopsy scoring as it relates to clinical trials, regulatory bodies have recommended a consensus approach, in which multiple pathologists read the same biopsy independently and a median score is used, or pathologists convene to come to an agreement, Dr. Wack said. 

“This is a very costly and burdensome approach and is still subject to interconsensus panel variation,” she said.

The introduction of digital pathology using validated digital viewers, where pathologists can view a glass slide digitally and pan and zoom over the image as they can with a microscope, means that many pathologists can read the same slide in parallel, she explained.

“If they need to discuss, they can do so efficiently over a phone call, each using their own computer screen and shared annotation tools to facilitate their discussion.”

Although this consensus approach can improve consistency, it still leads to variability in scoring across different groups of pathologists, Dr. Wack said.

This is where AI-assisted pathology comes into play.

“With this approach, a pathologist still views the image digitally, but an algorithm has predicted and highlighted key features and recommended quantitative scores,” she said.

This approach has been shown to increase precision for pathologists, thereby increasing reproducibility and standardizing scoring across timepoints and clinical trials.
 

What’s Ahead

These AI tools could address pathology’s lack of scalability, the result of a limited number of trained pathologists capable of doing liver biopsy assessments, Dr. Tai said. 

“Digital pathology workflows enable the transformation of conventional histologic glass slides into large digital images using scanners, allowing significant productivity gains in terms of workflow and collaboration,” he said.

Although AI-assisted pathology tools are still being validated, their promise for improving diagnoses and uncovering new treatments is clear, the interviewees agreed.

Extending its use to stage fibrosis in other liver diseases, such as primary biliary cholangitis, primary sclerosing cholangitis, and alcoholic liver disease, is also in progress on an experimental basis but will take time to validate.

“The landscape will evolve quickly in the coming 3-4 years,” Dr. Petitjean predicted. “To start, their intended use will likely be limited to a decision-support tool to enhance the performance of pathologists and perhaps stratify or triage cases sent for routine vs expert review.”

Dr. Petitjean even suggested that the increasing role of NITs and the amount of data being generated prospectively and retrospectively around liver biomarkers could mean that liver biopsies might not be needed one day.

A version of this article appeared on Medscape.com.

Digital pathology assisted by artificial intelligence (AI) has the potential to transform the diagnosis and treatment of fibrotic liver disease in the next few years and to reshape clinical trials, clearing the way for new therapies.

Although the technology is not yet approved for routine clinical use, it’s constantly improving and aims to address the limitations inherent in today’s pathology processes.

“You do a biopsy, but instead of having a pathologist read it with their very rough scores of stage 1, 2, or 3, you read it by an AI-driven machine that can quantify it with a score of 1.5 or 1.75 instead of 1 or 2,” Vlad Ratziu, MD, PhD, professor of hepatology at the Sorbonne Université and Hôpital Pitié-Salpêtrière Medical School in Paris, France, and coeditor of The Journal of Hepatology, said in an interview.

“The technology is automated, more sensitive to change, and more highly quantitative. It has implications for liver disease diagnoses, clinical trials, and treatments,” added Dr. Ratziu, who has written about the promise and challenges inherent in developing treatments for metabolic dysfunction–associated steatotic liver disease (MASLD).

To explore the potential impact of AI-powered technologies for the clinic, this news organization spoke with representatives from three companies identified by Dr. Ratziu as leaders in the field: HistoIndex, PathAI, and PharmaNest. Each company uses proprietary technology augmented by AI, and their tools have been used in published trials.
 

Moving Toward Better Diagnoses and Disease Management

The traditional approach for staging liver fibrosis relies on trained pathologists manually evaluating stained tissue samples obtained from biopsies of the liver.

But this method, though still considered the gold standard, doesn’t always provide the granularity needed for an accurate diagnosis or a reliable assessment in clinical trials, said Dean Tai, PhD, HistoIndex’s cofounder and chief scientific officer.

Although noninvasive tests (NITs), alone or with traditional histologic examination, are increasingly used during clinical management because they are less invasive and more repeatable for disease monitoring, they are limited in their precision and ability to provide comprehensive information, Dr. Tai said. That’s because “no single NIT or single-dimensional measurement of a biomarker offers a full assessment of disease activity, fibrogenic drive, and fibrosis load.”

In contrast, AI provides “a highly reproducible and objective assessment of liver fibrosis severity,” he said. “It eliminates the variability associated with staining methods, while revealing changes in the nano-architecture and morphology of collagen fibers not discernible by the human eye or current NITs, especially in the early stages of fibrosis or in cases of simultaneous progression and regression.”

Mathieu Petitjean, PhD, founder and CEO of PharmaNest, has a similar view. 

Although degree of liver fibrosis is associated with long-term outcomes of patients with MASLD, “poor detection thresholds due to their categorical nature mean that small and relevant changes are not reflected by changes in staging,” he said. “The reliable detection [with AI] of subtle changes in the phenotypes of fibrosis will significantly enrich the understanding of progression and regression of fibrosis severity.”

The ability of AI-based tools to see patterns the human eye cannot also means they could “help in predicting which patient may respond to a drug, in order to get the right treatments to the right patients as soon as possible,” said Katy Wack, PhD, vice president of clinical development at PathAI.

“Additionally, AI-based algorithms have been developed to provide more quantitative continuous scores to better capture change and discover new tissue-based biomarkers, which may be prognostic or predictive of clinical benefit,” she said. 

Such tools are currently undergoing testing and validation for use in trials and diagnostically.

The standardization and reproducibility offered by AI-driven technology could facilitate more consistent diagnoses across different healthcare settings, Dr. Tai suggested. “As the integration of the technology with other blood-, imaging-, and omics-based techniques evolves, it may enable earlier detection of liver diseases, more accurate monitoring of disease progression, and better evaluation of treatment responses, ultimately improving patient care and outcomes.”
 

More Effective Clinical Trials

The limitations of conventional pathology may be responsible, at least in part, for the repeated failure of novel compounds to move from phase 2 to phase 3 clinical trials, and from clinical trials to approval, the sources agreed.

“In clinical trials, patients are subject to enrollment criteria using liver biopsies, which are scored with a composite scoring system involving four different histologic components to grade and stage the disease,” Dr. Wack noted. 

However, there is wide variability between pathologists on biopsy scoring, and an individual pathologist presented with the same sample may give it a different score after some time has passed, she said.

That means “we are using a nonstandardized and inconsistent scoring system to determine whether a patient can be enrolled or not into a trial,” Dr. Wack said. 

The change in the composite score over a follow-up period, usually 1-2 years, determines whether a patient has responded to the candidate drug and, ultimately, whether that drug could be considered for approval, Dr. Wack said.

Because scores at the baseline and follow-up timepoints are not precise and inconsistent across pathologist readers, and even the same reader over time, there are often many “false-positive” and “false-negative” responses that can result in potential therapeutics either failing or succeeding in clinical trials, she said.

To address this variability in biopsy scoring as it relates to clinical trials, regulatory bodies have recommended a consensus approach, in which multiple pathologists read the same biopsy independently and a median score is used, or pathologists convene to come to an agreement, Dr. Wack said. 

“This is a very costly and burdensome approach and is still subject to interconsensus panel variation,” she said.

The introduction of digital pathology using validated digital viewers, where pathologists can view a glass slide digitally and pan and zoom over the image as they can with a microscope, means that many pathologists can read the same slide in parallel, she explained.

“If they need to discuss, they can do so efficiently over a phone call, each using their own computer screen and shared annotation tools to facilitate their discussion.”

Although this consensus approach can improve consistency, it still leads to variability in scoring across different groups of pathologists, Dr. Wack said.

This is where AI-assisted pathology comes into play.

“With this approach, a pathologist still views the image digitally, but an algorithm has predicted and highlighted key features and recommended quantitative scores,” she said.

This approach has been shown to increase precision for pathologists, thereby increasing reproducibility and standardizing scoring across timepoints and clinical trials.
 

What’s Ahead

These AI tools could address pathology’s lack of scalability, the result of a limited number of trained pathologists capable of doing liver biopsy assessments, Dr. Tai said. 

“Digital pathology workflows enable the transformation of conventional histologic glass slides into large digital images using scanners, allowing significant productivity gains in terms of workflow and collaboration,” he said.

Although AI-assisted pathology tools are still being validated, their promise for improving diagnoses and uncovering new treatments is clear, the interviewees agreed.

Extending its use to stage fibrosis in other liver diseases, such as primary biliary cholangitis, primary sclerosing cholangitis, and alcoholic liver disease, is also in progress on an experimental basis but will take time to validate.

“The landscape will evolve quickly in the coming 3-4 years,” Dr. Petitjean predicted. “To start, their intended use will likely be limited to a decision-support tool to enhance the performance of pathologists and perhaps stratify or triage cases sent for routine vs expert review.”

Dr. Petitjean even suggested that the increasing role of NITs and the amount of data being generated prospectively and retrospectively around liver biomarkers could mean that liver biopsies might not be needed one day.

A version of this article appeared on Medscape.com.

The Food and Drug Administration (FDA) plans to scrutinize the safety and efficacy of lab-developed tests — those designed, manufactured, and used in a single laboratory — far more thoroughly in the future.

Under a rule finalized in April, the FDA will treat facilities that develop and use lab tests as manufacturers and regulate tests as medical devices. That means that most lab tests will need an FDA review before going on sale.

The FDA will also impose new quality standards, requiring test manufacturers to report adverse events and create a registry of lab tests under the new rule, which will be phased in over 4 years.

FDA officials have been concerned for years about the reliability of commercial lab tests, which have ballooned into a multibillion-dollar industry.

Consumer groups have long urged the FDA to regulate lab tests more strictly, arguing that the lack of scrutiny allows doctors and patients to be exploited by bad actors such as Theranos, which falsely claimed that its tests could diagnose multiple diseases with a single drop of blood.

“When it comes to some of these tests that doctors are recommending for patients, many doctors are just crossing their fingers and relying on the representation of the company because nobody is checking” to verify a manufacturer’s claims, said Joshua Sharfstein, MD, vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
 

Nearly 12,000 Labs Making Medical Tests

Although the FDA estimates there are nearly 12,000 labs manufacturing medical tests, agency officials said they don’t know how many tests are being marketed. The FDA already requires that home test kits marketed directly to consumers, such as those used to detect COVID-19, get clearance from the agency before being sold.

“There’s plenty of time for industry to get its act together to develop the data that it might need to make a premarket application,” said Peter Lurie, MD, PhD, a former associate commissioner at the FDA. In 2015, Dr. Lurie led a report outlining some of the dangers of unregulated lab tests.

For the average physician who orders lab tests, nothing is going to immediately change because of the final rule, said Dr. Lurie, now president of the Center for Science in the Public Interest, a nonprofit consumer watchdog.

“Tomorrow, this will look just the same as it does today,” Dr. Lurie said. “For the next 3 years, the companies will be scurrying behind the scenes to comply with the early stages of implementation. But most of that will be invisible to the average practitioner.”

Dr. Lurie predicted the FDA will focus its scrutiny on tests that pose the greatest potential risk to patients, such as ones used to diagnose serious diseases or guide treatment for life-threatening conditions. “The least significant tests will likely get very limited, if any, scrutiny,” said Dr. Lurie, adding that the FDA will likely issue guidance about how it plans to define low- and high-risk tests. “My suspicion is that it will be probably a small minority of products that are subject to full premarket approval.”
 

Lab Industry Groups Push Back

But imposing new rules with the potential to affect an industry’s bottom line is no easy task.

The American Clinical Laboratory Association, which represents the lab industry, said in a statement that the FDA rule will “limit access to scores of critical tests, increase healthcare costs, and undermine innovation in new diagnostics.” Another industry group, the Association for Molecular Pathology, has warned of “significant and harmful disruption to laboratory medicine.”

The two associations have filed separate lawsuits, charging that the FDA overstepped the authority granted by Congress. In their lawsuits, groups claim that lab tests are professional services, not manufactured products. The groups noted that the Centers for Medicare & Medicaid Services (CMS) already inspects lab facilities. CMS does not assess the tests’ quality or reliability.

A recent Supreme Court decision could make those lawsuits more likely to succeed, said David Simon, JD, LLM, PhD, an assistant professor of law at the Northeastern University School of Law, Boston, Massachusetts.

In the case of Loper Bright Enterprises v. Raimondo, decided in June, justices overturned a long-standing precedent known as Chevron deference, which required courts to defer to federal agencies when interpreting ambiguous laws. That means that courts no longer have to accept the FDA’s definition of a device, Dr. Simon said.

“Because judges may have more active roles in defining agency authority, federal agencies may have correspondingly less robust roles in policymaking,” Dr. Simon wrote in an editorial coauthored with Michael J. Young, MD, MPhil, of Harvard Medical School, Boston.

The Supreme Court ruling could pressure Congress to more clearly define FDA’s ruling in regulating lab tests, Dr. Simon and Dr. Young wrote.

Members of Congress first introduced a bill to clarify the FDA’s role in regulating lab tests, called the VALID Act, in 2020. The bill stalled and, despite efforts to revive it, still hasn’t passed.

FDA officials have said they remain “open to working with Congress,” noting that any future legislation about lab-developed tests would supersede their current policy.

In an interview, Dr. Simon noted the FDA significantly narrowed the scope of the final rule in response to comments from critics who objected to an earlier version of the policy proposed in 2023. The final rule carves out several categories of tests that won’t need to apply for “premarket review.”

Notably, a “grandfather clause” will allow some lab tests already on the market to continue being sold without undergoing FDA’s premarket review process. In explaining the exemption, FDA officials said they did not want doctors and patients to lose access to tests on which they rely. But Dr. Lurie noted that because the FDA views all these tests as under its jurisdiction, the agency could opt to take a closer look “at a very old device that is causing a problem today.”

The FDA also will exempt tests approved by New York State’s Clinical Laboratory Evaluation Program, which conducts its own stringent reviews. And the FDA will continue to allow hospitals to develop tests for patients within their healthcare system without going through the FDA approval process, if no FDA-approved tests are available.

Hospital-based tests play a critical role in treating infectious diseases, said Amesh Adalja, MD, an infectious diseases specialist and senior scholar at the Johns Hopkins Center for Health Security. For example, a large research hospital treating a patient with cytomegalovirus may need to develop its own test to determine whether the infection is resistant to antiviral drugs, Dr. Adalja said.

“With novel infectious disease outbreaks, researchers are able to move quickly to make diagnostic tests months and months before commercial laboratories are able to get through regulatory processes,” Dr. Adalja said.

To help scientists respond quickly to emergencies, the FDA published special guidance for labs that develop unauthorized lab tests for disease outbreaks.

Medical groups such as the American Hospital Association and Infectious Diseases Society of America remain concerned about the burden of complying with new regulations.

“Many vital tests developed in hospitals and health systems may be subjected to unnecessary and costly paperwork,” said Stacey Hughes, executive vice president of the American Hospital Association, in a statement.

Other groups, such as the American Society of Clinical Oncology, praised the new FDA policy. In comments submitted to the FDA in 2023, the cancer group said it “emphatically supports” requiring lab tests to undergo FDA review.

“We appreciate FDA action to modernize oversight of these tests and are hopeful this rule will increase focus on the need to balance rapid diagnostic innovation with patient safety and access” Everett Vokes, MD, the group’s board chair, said in a statement released after the FDA’s final rule was published.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) plans to scrutinize the safety and efficacy of lab-developed tests — those designed, manufactured, and used in a single laboratory — far more thoroughly in the future.

Under a rule finalized in April, the FDA will treat facilities that develop and use lab tests as manufacturers and regulate tests as medical devices. That means that most lab tests will need an FDA review before going on sale.

The FDA will also impose new quality standards, requiring test manufacturers to report adverse events and create a registry of lab tests under the new rule, which will be phased in over 4 years.

FDA officials have been concerned for years about the reliability of commercial lab tests, which have ballooned into a multibillion-dollar industry.

Consumer groups have long urged the FDA to regulate lab tests more strictly, arguing that the lack of scrutiny allows doctors and patients to be exploited by bad actors such as Theranos, which falsely claimed that its tests could diagnose multiple diseases with a single drop of blood.

“When it comes to some of these tests that doctors are recommending for patients, many doctors are just crossing their fingers and relying on the representation of the company because nobody is checking” to verify a manufacturer’s claims, said Joshua Sharfstein, MD, vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
 

Nearly 12,000 Labs Making Medical Tests

Although the FDA estimates there are nearly 12,000 labs manufacturing medical tests, agency officials said they don’t know how many tests are being marketed. The FDA already requires that home test kits marketed directly to consumers, such as those used to detect COVID-19, get clearance from the agency before being sold.

“There’s plenty of time for industry to get its act together to develop the data that it might need to make a premarket application,” said Peter Lurie, MD, PhD, a former associate commissioner at the FDA. In 2015, Dr. Lurie led a report outlining some of the dangers of unregulated lab tests.

For the average physician who orders lab tests, nothing is going to immediately change because of the final rule, said Dr. Lurie, now president of the Center for Science in the Public Interest, a nonprofit consumer watchdog.

“Tomorrow, this will look just the same as it does today,” Dr. Lurie said. “For the next 3 years, the companies will be scurrying behind the scenes to comply with the early stages of implementation. But most of that will be invisible to the average practitioner.”

Dr. Lurie predicted the FDA will focus its scrutiny on tests that pose the greatest potential risk to patients, such as ones used to diagnose serious diseases or guide treatment for life-threatening conditions. “The least significant tests will likely get very limited, if any, scrutiny,” said Dr. Lurie, adding that the FDA will likely issue guidance about how it plans to define low- and high-risk tests. “My suspicion is that it will be probably a small minority of products that are subject to full premarket approval.”
 

Lab Industry Groups Push Back

But imposing new rules with the potential to affect an industry’s bottom line is no easy task.

The American Clinical Laboratory Association, which represents the lab industry, said in a statement that the FDA rule will “limit access to scores of critical tests, increase healthcare costs, and undermine innovation in new diagnostics.” Another industry group, the Association for Molecular Pathology, has warned of “significant and harmful disruption to laboratory medicine.”

The two associations have filed separate lawsuits, charging that the FDA overstepped the authority granted by Congress. In their lawsuits, groups claim that lab tests are professional services, not manufactured products. The groups noted that the Centers for Medicare & Medicaid Services (CMS) already inspects lab facilities. CMS does not assess the tests’ quality or reliability.

A recent Supreme Court decision could make those lawsuits more likely to succeed, said David Simon, JD, LLM, PhD, an assistant professor of law at the Northeastern University School of Law, Boston, Massachusetts.

In the case of Loper Bright Enterprises v. Raimondo, decided in June, justices overturned a long-standing precedent known as Chevron deference, which required courts to defer to federal agencies when interpreting ambiguous laws. That means that courts no longer have to accept the FDA’s definition of a device, Dr. Simon said.

“Because judges may have more active roles in defining agency authority, federal agencies may have correspondingly less robust roles in policymaking,” Dr. Simon wrote in an editorial coauthored with Michael J. Young, MD, MPhil, of Harvard Medical School, Boston.

The Supreme Court ruling could pressure Congress to more clearly define FDA’s ruling in regulating lab tests, Dr. Simon and Dr. Young wrote.

Members of Congress first introduced a bill to clarify the FDA’s role in regulating lab tests, called the VALID Act, in 2020. The bill stalled and, despite efforts to revive it, still hasn’t passed.

FDA officials have said they remain “open to working with Congress,” noting that any future legislation about lab-developed tests would supersede their current policy.

In an interview, Dr. Simon noted the FDA significantly narrowed the scope of the final rule in response to comments from critics who objected to an earlier version of the policy proposed in 2023. The final rule carves out several categories of tests that won’t need to apply for “premarket review.”

Notably, a “grandfather clause” will allow some lab tests already on the market to continue being sold without undergoing FDA’s premarket review process. In explaining the exemption, FDA officials said they did not want doctors and patients to lose access to tests on which they rely. But Dr. Lurie noted that because the FDA views all these tests as under its jurisdiction, the agency could opt to take a closer look “at a very old device that is causing a problem today.”

The FDA also will exempt tests approved by New York State’s Clinical Laboratory Evaluation Program, which conducts its own stringent reviews. And the FDA will continue to allow hospitals to develop tests for patients within their healthcare system without going through the FDA approval process, if no FDA-approved tests are available.

Hospital-based tests play a critical role in treating infectious diseases, said Amesh Adalja, MD, an infectious diseases specialist and senior scholar at the Johns Hopkins Center for Health Security. For example, a large research hospital treating a patient with cytomegalovirus may need to develop its own test to determine whether the infection is resistant to antiviral drugs, Dr. Adalja said.

“With novel infectious disease outbreaks, researchers are able to move quickly to make diagnostic tests months and months before commercial laboratories are able to get through regulatory processes,” Dr. Adalja said.

To help scientists respond quickly to emergencies, the FDA published special guidance for labs that develop unauthorized lab tests for disease outbreaks.

Medical groups such as the American Hospital Association and Infectious Diseases Society of America remain concerned about the burden of complying with new regulations.

“Many vital tests developed in hospitals and health systems may be subjected to unnecessary and costly paperwork,” said Stacey Hughes, executive vice president of the American Hospital Association, in a statement.

Other groups, such as the American Society of Clinical Oncology, praised the new FDA policy. In comments submitted to the FDA in 2023, the cancer group said it “emphatically supports” requiring lab tests to undergo FDA review.

“We appreciate FDA action to modernize oversight of these tests and are hopeful this rule will increase focus on the need to balance rapid diagnostic innovation with patient safety and access” Everett Vokes, MD, the group’s board chair, said in a statement released after the FDA’s final rule was published.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) plans to scrutinize the safety and efficacy of lab-developed tests — those designed, manufactured, and used in a single laboratory — far more thoroughly in the future.

Under a rule finalized in April, the FDA will treat facilities that develop and use lab tests as manufacturers and regulate tests as medical devices. That means that most lab tests will need an FDA review before going on sale.

The FDA will also impose new quality standards, requiring test manufacturers to report adverse events and create a registry of lab tests under the new rule, which will be phased in over 4 years.

FDA officials have been concerned for years about the reliability of commercial lab tests, which have ballooned into a multibillion-dollar industry.

Consumer groups have long urged the FDA to regulate lab tests more strictly, arguing that the lack of scrutiny allows doctors and patients to be exploited by bad actors such as Theranos, which falsely claimed that its tests could diagnose multiple diseases with a single drop of blood.

“When it comes to some of these tests that doctors are recommending for patients, many doctors are just crossing their fingers and relying on the representation of the company because nobody is checking” to verify a manufacturer’s claims, said Joshua Sharfstein, MD, vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
 

Nearly 12,000 Labs Making Medical Tests

Although the FDA estimates there are nearly 12,000 labs manufacturing medical tests, agency officials said they don’t know how many tests are being marketed. The FDA already requires that home test kits marketed directly to consumers, such as those used to detect COVID-19, get clearance from the agency before being sold.

“There’s plenty of time for industry to get its act together to develop the data that it might need to make a premarket application,” said Peter Lurie, MD, PhD, a former associate commissioner at the FDA. In 2015, Dr. Lurie led a report outlining some of the dangers of unregulated lab tests.

For the average physician who orders lab tests, nothing is going to immediately change because of the final rule, said Dr. Lurie, now president of the Center for Science in the Public Interest, a nonprofit consumer watchdog.

“Tomorrow, this will look just the same as it does today,” Dr. Lurie said. “For the next 3 years, the companies will be scurrying behind the scenes to comply with the early stages of implementation. But most of that will be invisible to the average practitioner.”

Dr. Lurie predicted the FDA will focus its scrutiny on tests that pose the greatest potential risk to patients, such as ones used to diagnose serious diseases or guide treatment for life-threatening conditions. “The least significant tests will likely get very limited, if any, scrutiny,” said Dr. Lurie, adding that the FDA will likely issue guidance about how it plans to define low- and high-risk tests. “My suspicion is that it will be probably a small minority of products that are subject to full premarket approval.”
 

Lab Industry Groups Push Back

But imposing new rules with the potential to affect an industry’s bottom line is no easy task.

The American Clinical Laboratory Association, which represents the lab industry, said in a statement that the FDA rule will “limit access to scores of critical tests, increase healthcare costs, and undermine innovation in new diagnostics.” Another industry group, the Association for Molecular Pathology, has warned of “significant and harmful disruption to laboratory medicine.”

The two associations have filed separate lawsuits, charging that the FDA overstepped the authority granted by Congress. In their lawsuits, groups claim that lab tests are professional services, not manufactured products. The groups noted that the Centers for Medicare & Medicaid Services (CMS) already inspects lab facilities. CMS does not assess the tests’ quality or reliability.

A recent Supreme Court decision could make those lawsuits more likely to succeed, said David Simon, JD, LLM, PhD, an assistant professor of law at the Northeastern University School of Law, Boston, Massachusetts.

In the case of Loper Bright Enterprises v. Raimondo, decided in June, justices overturned a long-standing precedent known as Chevron deference, which required courts to defer to federal agencies when interpreting ambiguous laws. That means that courts no longer have to accept the FDA’s definition of a device, Dr. Simon said.

“Because judges may have more active roles in defining agency authority, federal agencies may have correspondingly less robust roles in policymaking,” Dr. Simon wrote in an editorial coauthored with Michael J. Young, MD, MPhil, of Harvard Medical School, Boston.

The Supreme Court ruling could pressure Congress to more clearly define FDA’s ruling in regulating lab tests, Dr. Simon and Dr. Young wrote.

Members of Congress first introduced a bill to clarify the FDA’s role in regulating lab tests, called the VALID Act, in 2020. The bill stalled and, despite efforts to revive it, still hasn’t passed.

FDA officials have said they remain “open to working with Congress,” noting that any future legislation about lab-developed tests would supersede their current policy.

In an interview, Dr. Simon noted the FDA significantly narrowed the scope of the final rule in response to comments from critics who objected to an earlier version of the policy proposed in 2023. The final rule carves out several categories of tests that won’t need to apply for “premarket review.”

Notably, a “grandfather clause” will allow some lab tests already on the market to continue being sold without undergoing FDA’s premarket review process. In explaining the exemption, FDA officials said they did not want doctors and patients to lose access to tests on which they rely. But Dr. Lurie noted that because the FDA views all these tests as under its jurisdiction, the agency could opt to take a closer look “at a very old device that is causing a problem today.”

The FDA also will exempt tests approved by New York State’s Clinical Laboratory Evaluation Program, which conducts its own stringent reviews. And the FDA will continue to allow hospitals to develop tests for patients within their healthcare system without going through the FDA approval process, if no FDA-approved tests are available.

Hospital-based tests play a critical role in treating infectious diseases, said Amesh Adalja, MD, an infectious diseases specialist and senior scholar at the Johns Hopkins Center for Health Security. For example, a large research hospital treating a patient with cytomegalovirus may need to develop its own test to determine whether the infection is resistant to antiviral drugs, Dr. Adalja said.

“With novel infectious disease outbreaks, researchers are able to move quickly to make diagnostic tests months and months before commercial laboratories are able to get through regulatory processes,” Dr. Adalja said.

To help scientists respond quickly to emergencies, the FDA published special guidance for labs that develop unauthorized lab tests for disease outbreaks.

Medical groups such as the American Hospital Association and Infectious Diseases Society of America remain concerned about the burden of complying with new regulations.

“Many vital tests developed in hospitals and health systems may be subjected to unnecessary and costly paperwork,” said Stacey Hughes, executive vice president of the American Hospital Association, in a statement.

Other groups, such as the American Society of Clinical Oncology, praised the new FDA policy. In comments submitted to the FDA in 2023, the cancer group said it “emphatically supports” requiring lab tests to undergo FDA review.

“We appreciate FDA action to modernize oversight of these tests and are hopeful this rule will increase focus on the need to balance rapid diagnostic innovation with patient safety and access” Everett Vokes, MD, the group’s board chair, said in a statement released after the FDA’s final rule was published.

A version of this article first appeared on Medscape.com.

It’s well known that the United States enjoys the dubious distinction of having the worst maternal morbidity and mortality rates among industrialized nations. Maternal mortality in this country increased by 14% from 2018 to 2020, according to the Centers for Disease Control and Prevention’s National Center for Health Statistics.

But a current trend of engaging birth doulas — nonmedical guides offering continuous one-on-one physical and psychological support in the pre-, peri,- and postnatal periods — may be poised to brighten that dismal statistical landscape.

Recent research has shown that mothers matched with a doula are less likely to have a low birth weight baby, less likely to experience a birth complication, and significantly more likely to initiate breastfeeding.

Doula services — even delivered digitally — are seen to lower healthcare costs, reduce cesarean sections, decrease maternal anxiety and depression, and improve communication between healthcare providers and low-income, racially/ethnically diverse pregnant women. Doulas can be especially helpful for mothers dealing with the psychological fallout of miscarriage or stillbirth. They can guide patients in the postpartum period, when problems can arise and when some mothers are lost to medical follow-up, and provide an ongoing source of patient information for the ob.gyn.

“Research has shown that in addition to better outcomes, doula care can shorten labor time and increase patient satisfaction,” said ob.gyn. Layan Alrahmani, MD, in an interview. A maternal-fetal medicine specialist with a focus on high-risk pregnancies among low-income women at Loyola Medicine in Maywood, Illinois, Dr. Alrahmani welcomes doulas to her patients’ antenatal visits.

“Many of my patients who are looking to avoid an epidural will work with a labor doula, in order to stay home as long as possible and to have one-on-one coaching through the pain as things progress,” said Susan Rothenberg, MD, an assistant professor of obstetrics, gynecology, and reproductive science at the Icahn School of Medicine at Mount Sinai and an ob/gyn at Mount Sinai Downtown Union Square in New York City. She added, “When a woman’s partner is squeamish or potentially unavailable, a labor doula can be a great option.”

Another ob.gyn. who enthusiastically embraces doula care is L. Joy Baker, MD, who practices in LaGrange, Georgia, and is affiliated with Wellstar West Georgia Medical Center. “I love it when my patients have a doula. A doula answers a patient’s questions throughout the pregnancy and amplifies the mother’s voice in the medical system and the clinical setting,” Dr. Baker told this news organization.

“They provide important details on patients’ food, housing, and transportation status when the mothers themselves would not bring those up in a short appointment with their doctors,” she said. Dr. Baker called for more recognition of their merit, especially for first-time and high-risk moms.

Efua B. Leke, MD, MPH, an assistant professor at Baylor College of Medicine and chief of obstetrics at Ben Taub Hospital in Houston, Texas, also believes a major benefit of doulas is improved flow of information. “We know that having doulas participate in maternal care can ease communication between pregnant and parturient mothers and their clinical team,” Dr. Leke said. “This is especially important for under-resourced pregnant women for whom morbidity tends to be disparately higher.”

Doulas can also take pressure off embattled ob.gyn. clinical staff. “Our volume of patients is huge, so we have to keep appointments brief,” Dr. Baker said. “The US is currently 8000 ob.gyn.s short, and to make matters worse, we’re seeing more and more obstetrical care deserts.”

Still largely underutilized, doula care is seen by its proponents as important in light of the drastic shortage of ob.gyn.s and the shrinking presence of maternity care in many US counties.

According to a recent March of Dimes report, access to maternity care is waning, with more than 35% of US counties offering no community obstetrical care and 52% providing no maternity care in local hospitals. That translates to long distances and extended travel time for mothers seeking care.
 

Growth Remains Slow

Although many believe doulas could become part of the solution to the lack of access to maternity care, their acceptance seems to be slow growing. In a 2012 national survey by Declercq and associates, about 6% of mothers used a doula during childbirth, up from 3% in a 2006 national survey. Of those who were familiar with but lacking doula care, just 27% would have chosen to have this service.

“I’d estimate that doulas are still involved in only about 6%-8% of births,” said Shaconna Haley, MA, a certified holistic doula and doula trainer in Atlanta, Georgia.

And are there enough practicing doulas in the United States to put a dent in the current shortfall in pregnancy care? Although no reliable estimate of their numbers exists, a centralized online doula registration service listed 9000 registered practitioners in 2018. Contrast that with the approximately 3.6 million live births in 2023.
 

Potential for Friction?

Although generally seen as benign and helpful, the presence of a doula can add another layer of people for hard-pressed medical staff to deal with. Can their attendance occasionally lead to an adversarial encounter? Yes, said Dr. Baker, especially in the case of assertive questioning or suggestions directed at medical staff. “There can be some mistrust on the part of clinicians when nonmedical persons start raising concerns and asking questions. Staff can get a little prickly at this.”

In the view of Melissa A. Simon, MD, MPH, a professor of obstetrics and gynecology, preventive medicine, and medical social sciences at Northwestern University Feinberg School of Medicine in Chicago, Illinois, simple, preventable communication breakdown is often the cause of occasional antagonism. “As in all team care approaches, it’s helpful to have upfront conversations with the birthing person, the doula, and any care team members or support people who will be present in the birthing room. These conversations should be about expectations.”

According to Ms. Haley, “As long as the focus stays firmly on the client/patient and not on the other team members, there should be no friction. Medical staff should be aware there will be a doula in attendance and ideally there should be a collaborative team and plan in place before the birth.” 

In Dr. Leke’s experience, doulas do not hinder the medical team as long as clinical roles are well clarified and the patient is engaged in her care plan. “Friction can occur when doulas are functioning outside of their scope of practice, such as speaking to the healthcare team on behalf of the mother instead empowering the mother to speak up herself,” she said. “Or, when the healthcare team doesn’t understand the doula’s scope of practice or recognize the doula as a member of the team.” 

Added Dr. Rothenberg, “I’ve occasionally run into doulas who imagine I have an ulterior motive when making recommendations to patients when that’s completely untrue. It’s common for women to decide to become doulas because they didn’t feel listened to during their own birthing experience, and for a few of them, it’s hard to not project that onto their clients’ labor situations, creating conflict where it doesn’t need to exist.”
 

Barriers and Challenges 

Unfortunately, the barriers of cost and access remain high for pregnant and birthing mothers from lower socioeconomic echelons who have no or limited insurance. “There also are very few multilingual doulas or doulas from diverse racial-ethnic backgrounds and identities,” Dr. Simon pointed out.
Yet by all indications, Medicaid members who receive doula services experience positive maternal outcomes, even those at higher risk for pregnancy complications.

As for Medicaid coverage of doula services, in a recent Centers for Medicare & Medicaid Services report, just 11 state Medicaid programs were reimbursing doula services, whereas an additional five were in the process of implementing reimbursement.

Doula care is not covered by all private insurance plans either, Dr. Simon said. “Although there are maternity care bundles with payment models that help integrate doula care, and there are ways to use your flexible spending account to cover it.”

Some hospitals may undertake independent initiatives. Dr. Baker’s center is offering antenatal and peripartum doula support for under-resourced mothers thanks to a Health Resources and Services Administration grant.* 

But for now, doula services are largely limited to middle- and high-income women able to afford the associated out-of-pocket costs. These mothers are disproportionately White, and the doulas serving them tend to be of the same race and socioeconomic class.

The Future

Dr. Simon foresees an optimal scenario in which a team of doulas works with all birthing persons on a hospital labor floor as well as with a team of clinicians. “It takes a true team approach to ensure an optimal birthing experience and optimal birth outcomes,” she said.

Despite the many challenges ahead, doulas will probably become a permanent fixture in pregnancy, birth, and postpartum care, said Dr. Baker. “Doula care is going to be a game changer, and obstetricians welcome doulas to the obstetrical care team.” 

Dr. Alrahmani, Dr. Baker, Ms. Haley, Dr. Leke, Dr. Rothenberg, and Dr. Simon declared no conflicts of interest relevant to their comments.

*This story was updated on October 1, 2024.

A version of this article first appeared on Medscape.com.

It’s well known that the United States enjoys the dubious distinction of having the worst maternal morbidity and mortality rates among industrialized nations. Maternal mortality in this country increased by 14% from 2018 to 2020, according to the Centers for Disease Control and Prevention’s National Center for Health Statistics.

But a current trend of engaging birth doulas — nonmedical guides offering continuous one-on-one physical and psychological support in the pre-, peri,- and postnatal periods — may be poised to brighten that dismal statistical landscape.

Recent research has shown that mothers matched with a doula are less likely to have a low birth weight baby, less likely to experience a birth complication, and significantly more likely to initiate breastfeeding.

Doula services — even delivered digitally — are seen to lower healthcare costs, reduce cesarean sections, decrease maternal anxiety and depression, and improve communication between healthcare providers and low-income, racially/ethnically diverse pregnant women. Doulas can be especially helpful for mothers dealing with the psychological fallout of miscarriage or stillbirth. They can guide patients in the postpartum period, when problems can arise and when some mothers are lost to medical follow-up, and provide an ongoing source of patient information for the ob.gyn.

“Research has shown that in addition to better outcomes, doula care can shorten labor time and increase patient satisfaction,” said ob.gyn. Layan Alrahmani, MD, in an interview. A maternal-fetal medicine specialist with a focus on high-risk pregnancies among low-income women at Loyola Medicine in Maywood, Illinois, Dr. Alrahmani welcomes doulas to her patients’ antenatal visits.

“Many of my patients who are looking to avoid an epidural will work with a labor doula, in order to stay home as long as possible and to have one-on-one coaching through the pain as things progress,” said Susan Rothenberg, MD, an assistant professor of obstetrics, gynecology, and reproductive science at the Icahn School of Medicine at Mount Sinai and an ob/gyn at Mount Sinai Downtown Union Square in New York City. She added, “When a woman’s partner is squeamish or potentially unavailable, a labor doula can be a great option.”

Another ob.gyn. who enthusiastically embraces doula care is L. Joy Baker, MD, who practices in LaGrange, Georgia, and is affiliated with Wellstar West Georgia Medical Center. “I love it when my patients have a doula. A doula answers a patient’s questions throughout the pregnancy and amplifies the mother’s voice in the medical system and the clinical setting,” Dr. Baker told this news organization.

“They provide important details on patients’ food, housing, and transportation status when the mothers themselves would not bring those up in a short appointment with their doctors,” she said. Dr. Baker called for more recognition of their merit, especially for first-time and high-risk moms.

Efua B. Leke, MD, MPH, an assistant professor at Baylor College of Medicine and chief of obstetrics at Ben Taub Hospital in Houston, Texas, also believes a major benefit of doulas is improved flow of information. “We know that having doulas participate in maternal care can ease communication between pregnant and parturient mothers and their clinical team,” Dr. Leke said. “This is especially important for under-resourced pregnant women for whom morbidity tends to be disparately higher.”

Doulas can also take pressure off embattled ob.gyn. clinical staff. “Our volume of patients is huge, so we have to keep appointments brief,” Dr. Baker said. “The US is currently 8000 ob.gyn.s short, and to make matters worse, we’re seeing more and more obstetrical care deserts.”

Still largely underutilized, doula care is seen by its proponents as important in light of the drastic shortage of ob.gyn.s and the shrinking presence of maternity care in many US counties.

According to a recent March of Dimes report, access to maternity care is waning, with more than 35% of US counties offering no community obstetrical care and 52% providing no maternity care in local hospitals. That translates to long distances and extended travel time for mothers seeking care.
 

Growth Remains Slow

Although many believe doulas could become part of the solution to the lack of access to maternity care, their acceptance seems to be slow growing. In a 2012 national survey by Declercq and associates, about 6% of mothers used a doula during childbirth, up from 3% in a 2006 national survey. Of those who were familiar with but lacking doula care, just 27% would have chosen to have this service.

“I’d estimate that doulas are still involved in only about 6%-8% of births,” said Shaconna Haley, MA, a certified holistic doula and doula trainer in Atlanta, Georgia.

And are there enough practicing doulas in the United States to put a dent in the current shortfall in pregnancy care? Although no reliable estimate of their numbers exists, a centralized online doula registration service listed 9000 registered practitioners in 2018. Contrast that with the approximately 3.6 million live births in 2023.
 

Potential for Friction?

Although generally seen as benign and helpful, the presence of a doula can add another layer of people for hard-pressed medical staff to deal with. Can their attendance occasionally lead to an adversarial encounter? Yes, said Dr. Baker, especially in the case of assertive questioning or suggestions directed at medical staff. “There can be some mistrust on the part of clinicians when nonmedical persons start raising concerns and asking questions. Staff can get a little prickly at this.”

In the view of Melissa A. Simon, MD, MPH, a professor of obstetrics and gynecology, preventive medicine, and medical social sciences at Northwestern University Feinberg School of Medicine in Chicago, Illinois, simple, preventable communication breakdown is often the cause of occasional antagonism. “As in all team care approaches, it’s helpful to have upfront conversations with the birthing person, the doula, and any care team members or support people who will be present in the birthing room. These conversations should be about expectations.”

According to Ms. Haley, “As long as the focus stays firmly on the client/patient and not on the other team members, there should be no friction. Medical staff should be aware there will be a doula in attendance and ideally there should be a collaborative team and plan in place before the birth.” 

In Dr. Leke’s experience, doulas do not hinder the medical team as long as clinical roles are well clarified and the patient is engaged in her care plan. “Friction can occur when doulas are functioning outside of their scope of practice, such as speaking to the healthcare team on behalf of the mother instead empowering the mother to speak up herself,” she said. “Or, when the healthcare team doesn’t understand the doula’s scope of practice or recognize the doula as a member of the team.” 

Added Dr. Rothenberg, “I’ve occasionally run into doulas who imagine I have an ulterior motive when making recommendations to patients when that’s completely untrue. It’s common for women to decide to become doulas because they didn’t feel listened to during their own birthing experience, and for a few of them, it’s hard to not project that onto their clients’ labor situations, creating conflict where it doesn’t need to exist.”
 

Barriers and Challenges 

Unfortunately, the barriers of cost and access remain high for pregnant and birthing mothers from lower socioeconomic echelons who have no or limited insurance. “There also are very few multilingual doulas or doulas from diverse racial-ethnic backgrounds and identities,” Dr. Simon pointed out.
Yet by all indications, Medicaid members who receive doula services experience positive maternal outcomes, even those at higher risk for pregnancy complications.

As for Medicaid coverage of doula services, in a recent Centers for Medicare & Medicaid Services report, just 11 state Medicaid programs were reimbursing doula services, whereas an additional five were in the process of implementing reimbursement.

Doula care is not covered by all private insurance plans either, Dr. Simon said. “Although there are maternity care bundles with payment models that help integrate doula care, and there are ways to use your flexible spending account to cover it.”

Some hospitals may undertake independent initiatives. Dr. Baker’s center is offering antenatal and peripartum doula support for under-resourced mothers thanks to a Health Resources and Services Administration grant.* 

But for now, doula services are largely limited to middle- and high-income women able to afford the associated out-of-pocket costs. These mothers are disproportionately White, and the doulas serving them tend to be of the same race and socioeconomic class.

The Future

Dr. Simon foresees an optimal scenario in which a team of doulas works with all birthing persons on a hospital labor floor as well as with a team of clinicians. “It takes a true team approach to ensure an optimal birthing experience and optimal birth outcomes,” she said.

Despite the many challenges ahead, doulas will probably become a permanent fixture in pregnancy, birth, and postpartum care, said Dr. Baker. “Doula care is going to be a game changer, and obstetricians welcome doulas to the obstetrical care team.” 

Dr. Alrahmani, Dr. Baker, Ms. Haley, Dr. Leke, Dr. Rothenberg, and Dr. Simon declared no conflicts of interest relevant to their comments.

*This story was updated on October 1, 2024.

A version of this article first appeared on Medscape.com.

It’s well known that the United States enjoys the dubious distinction of having the worst maternal morbidity and mortality rates among industrialized nations. Maternal mortality in this country increased by 14% from 2018 to 2020, according to the Centers for Disease Control and Prevention’s National Center for Health Statistics.

But a current trend of engaging birth doulas — nonmedical guides offering continuous one-on-one physical and psychological support in the pre-, peri,- and postnatal periods — may be poised to brighten that dismal statistical landscape.

Recent research has shown that mothers matched with a doula are less likely to have a low birth weight baby, less likely to experience a birth complication, and significantly more likely to initiate breastfeeding.

Doula services — even delivered digitally — are seen to lower healthcare costs, reduce cesarean sections, decrease maternal anxiety and depression, and improve communication between healthcare providers and low-income, racially/ethnically diverse pregnant women. Doulas can be especially helpful for mothers dealing with the psychological fallout of miscarriage or stillbirth. They can guide patients in the postpartum period, when problems can arise and when some mothers are lost to medical follow-up, and provide an ongoing source of patient information for the ob.gyn.

“Research has shown that in addition to better outcomes, doula care can shorten labor time and increase patient satisfaction,” said ob.gyn. Layan Alrahmani, MD, in an interview. A maternal-fetal medicine specialist with a focus on high-risk pregnancies among low-income women at Loyola Medicine in Maywood, Illinois, Dr. Alrahmani welcomes doulas to her patients’ antenatal visits.

“Many of my patients who are looking to avoid an epidural will work with a labor doula, in order to stay home as long as possible and to have one-on-one coaching through the pain as things progress,” said Susan Rothenberg, MD, an assistant professor of obstetrics, gynecology, and reproductive science at the Icahn School of Medicine at Mount Sinai and an ob/gyn at Mount Sinai Downtown Union Square in New York City. She added, “When a woman’s partner is squeamish or potentially unavailable, a labor doula can be a great option.”

Another ob.gyn. who enthusiastically embraces doula care is L. Joy Baker, MD, who practices in LaGrange, Georgia, and is affiliated with Wellstar West Georgia Medical Center. “I love it when my patients have a doula. A doula answers a patient’s questions throughout the pregnancy and amplifies the mother’s voice in the medical system and the clinical setting,” Dr. Baker told this news organization.

“They provide important details on patients’ food, housing, and transportation status when the mothers themselves would not bring those up in a short appointment with their doctors,” she said. Dr. Baker called for more recognition of their merit, especially for first-time and high-risk moms.

Efua B. Leke, MD, MPH, an assistant professor at Baylor College of Medicine and chief of obstetrics at Ben Taub Hospital in Houston, Texas, also believes a major benefit of doulas is improved flow of information. “We know that having doulas participate in maternal care can ease communication between pregnant and parturient mothers and their clinical team,” Dr. Leke said. “This is especially important for under-resourced pregnant women for whom morbidity tends to be disparately higher.”

Doulas can also take pressure off embattled ob.gyn. clinical staff. “Our volume of patients is huge, so we have to keep appointments brief,” Dr. Baker said. “The US is currently 8000 ob.gyn.s short, and to make matters worse, we’re seeing more and more obstetrical care deserts.”

Still largely underutilized, doula care is seen by its proponents as important in light of the drastic shortage of ob.gyn.s and the shrinking presence of maternity care in many US counties.

According to a recent March of Dimes report, access to maternity care is waning, with more than 35% of US counties offering no community obstetrical care and 52% providing no maternity care in local hospitals. That translates to long distances and extended travel time for mothers seeking care.
 

Growth Remains Slow

Although many believe doulas could become part of the solution to the lack of access to maternity care, their acceptance seems to be slow growing. In a 2012 national survey by Declercq and associates, about 6% of mothers used a doula during childbirth, up from 3% in a 2006 national survey. Of those who were familiar with but lacking doula care, just 27% would have chosen to have this service.

“I’d estimate that doulas are still involved in only about 6%-8% of births,” said Shaconna Haley, MA, a certified holistic doula and doula trainer in Atlanta, Georgia.

And are there enough practicing doulas in the United States to put a dent in the current shortfall in pregnancy care? Although no reliable estimate of their numbers exists, a centralized online doula registration service listed 9000 registered practitioners in 2018. Contrast that with the approximately 3.6 million live births in 2023.
 

Potential for Friction?

Although generally seen as benign and helpful, the presence of a doula can add another layer of people for hard-pressed medical staff to deal with. Can their attendance occasionally lead to an adversarial encounter? Yes, said Dr. Baker, especially in the case of assertive questioning or suggestions directed at medical staff. “There can be some mistrust on the part of clinicians when nonmedical persons start raising concerns and asking questions. Staff can get a little prickly at this.”

In the view of Melissa A. Simon, MD, MPH, a professor of obstetrics and gynecology, preventive medicine, and medical social sciences at Northwestern University Feinberg School of Medicine in Chicago, Illinois, simple, preventable communication breakdown is often the cause of occasional antagonism. “As in all team care approaches, it’s helpful to have upfront conversations with the birthing person, the doula, and any care team members or support people who will be present in the birthing room. These conversations should be about expectations.”

According to Ms. Haley, “As long as the focus stays firmly on the client/patient and not on the other team members, there should be no friction. Medical staff should be aware there will be a doula in attendance and ideally there should be a collaborative team and plan in place before the birth.” 

In Dr. Leke’s experience, doulas do not hinder the medical team as long as clinical roles are well clarified and the patient is engaged in her care plan. “Friction can occur when doulas are functioning outside of their scope of practice, such as speaking to the healthcare team on behalf of the mother instead empowering the mother to speak up herself,” she said. “Or, when the healthcare team doesn’t understand the doula’s scope of practice or recognize the doula as a member of the team.” 

Added Dr. Rothenberg, “I’ve occasionally run into doulas who imagine I have an ulterior motive when making recommendations to patients when that’s completely untrue. It’s common for women to decide to become doulas because they didn’t feel listened to during their own birthing experience, and for a few of them, it’s hard to not project that onto their clients’ labor situations, creating conflict where it doesn’t need to exist.”
 

Barriers and Challenges 

Unfortunately, the barriers of cost and access remain high for pregnant and birthing mothers from lower socioeconomic echelons who have no or limited insurance. “There also are very few multilingual doulas or doulas from diverse racial-ethnic backgrounds and identities,” Dr. Simon pointed out.
Yet by all indications, Medicaid members who receive doula services experience positive maternal outcomes, even those at higher risk for pregnancy complications.

As for Medicaid coverage of doula services, in a recent Centers for Medicare & Medicaid Services report, just 11 state Medicaid programs were reimbursing doula services, whereas an additional five were in the process of implementing reimbursement.

Doula care is not covered by all private insurance plans either, Dr. Simon said. “Although there are maternity care bundles with payment models that help integrate doula care, and there are ways to use your flexible spending account to cover it.”

Some hospitals may undertake independent initiatives. Dr. Baker’s center is offering antenatal and peripartum doula support for under-resourced mothers thanks to a Health Resources and Services Administration grant.* 

But for now, doula services are largely limited to middle- and high-income women able to afford the associated out-of-pocket costs. These mothers are disproportionately White, and the doulas serving them tend to be of the same race and socioeconomic class.

The Future

Dr. Simon foresees an optimal scenario in which a team of doulas works with all birthing persons on a hospital labor floor as well as with a team of clinicians. “It takes a true team approach to ensure an optimal birthing experience and optimal birth outcomes,” she said.

Despite the many challenges ahead, doulas will probably become a permanent fixture in pregnancy, birth, and postpartum care, said Dr. Baker. “Doula care is going to be a game changer, and obstetricians welcome doulas to the obstetrical care team.” 

Dr. Alrahmani, Dr. Baker, Ms. Haley, Dr. Leke, Dr. Rothenberg, and Dr. Simon declared no conflicts of interest relevant to their comments.

*This story was updated on October 1, 2024.

A version of this article first appeared on Medscape.com.

Pertussis cases in the United States have increased fourfold compared with the same time period last year, according to data from the Centers for Disease Control and Prevention (CDC). Reports from several states illustrate this trend, thought to be due to reduced immunity across the country.

The Alaska Department of Health issued a statement on its website about the significant increase in pertussis cases in the state during the summer, with 90 cases in July and 61 in August, compared with 24 in June and a total of 26 cases in 2023.

Similarly, the Florida Department of Health reported a pertussis increase in July 2024 that was higher than the June 2024 case count and also above the previous 5-year average.

Experts in these and other states suggest that several factors are driving the nationwide increase, including the fact that fewer people are consistently wearing masks. The mass masking during the COVID-19 pandemic caused a significant drop in pertussis, but the latest data suggest a return to prepandemic levels, and waning immunity likely plays a role as well.

Pertussis, also known as whooping cough, typically begins with symptoms similar to those of the common cold, including runny nose, sneezing, mild fever, and cough, according to the CDC. However, babies with whooping cough may experience trouble breathing rather than a cough. The coughing fits often associated with pertussis may not start until 2 weeks after the onset of other symptoms, according to the CDC.

Those who have been vaccinated against pertussis can still become infected, but the risk is lower, and the illness, if it occurs, is likely to be milder. Complications such as apnea, pneumonia, and convulsions can occur in babies younger than 1 year, especially if they have not been vaccinated, according to the CDC.
 

Beyond Easing Pandemic Precautions

Many respiratory-based infections dipped during the COVID-19 pandemic, almost certainly from the multifactorial interventions of masking, distancing, and the general lack of comingling, said David J. Cennimo, MD, associate professor of medicine & pediatrics in the Division of Infectious Diseases at Rutgers New Jersey Medical School, Newark, New Jersey, in an interview.

The number of cases of many of these diseases returned to previous levels after COVID-19 restrictions were lifted, he said.

“However, we know pertussis immunity wanes over time. Children get DTaP at 2, 4, 6, and 15 months, and a Tdap booster at 11-12 years old gets them to adulthood,” Dr. Cennimo said. Adults should be getting a Tdap every 10 years, he added.

The latest available CDC data indicate that Tdap vaccine coverage in adults is approximately 40%, which means that there may be a large number of susceptible people who can become infected and propagate to others, said Dr. Cennimo.
 

Not Just the Young Ones

A recent pertussis outbreak among college students in Virginia highlighted the fact that the infection can affect all ages, and that the effectiveness of childhood vaccines may decrease over time. The majority of the recently diagnosed cases occurred in individuals who had been previously vaccinated, according to a press release from the Virginia Department of Health.

Clinical Clues

The initial stage of pertussis infection looks like a common cold with symptoms of upper respiratory infection, Dr. Cennimo told this news organization. “Unless there is reason to suspect pertussis exposure, it would almost certainly be missed,” he noted.

The characteristic barking/seal-like cough is mostly seen in children, said Dr. Cennimo. Adults and children can experience coughing fits that can lead to shortness of breath and/or vomiting, which would raise suspicion for pertussis, but is not universally present, he said. The convalescent stage of pertussis can be prolonged and is characterized by chronic coughing. “In the past, pertussis had been called the 100-day cough,” and at that point, treatment is ineffective, Dr. Cennimo said.

In clinical practice, “I advise everyone to get the Tdap vaccine every 10 years,” and remember that the “Td” is the every 10-year tetanus shot as well, Dr. Cennimo told this news organization. Reassure patients that the Tdap can be given with other vaccines, he said, and remind patients that, as with any of the respiratory illnesses, they should stay home if sick, cover a cough, consider wearing a mask in public, and wash hands frequently, he said. 

Dr. Cennimo had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Pertussis cases in the United States have increased fourfold compared with the same time period last year, according to data from the Centers for Disease Control and Prevention (CDC). Reports from several states illustrate this trend, thought to be due to reduced immunity across the country.

The Alaska Department of Health issued a statement on its website about the significant increase in pertussis cases in the state during the summer, with 90 cases in July and 61 in August, compared with 24 in June and a total of 26 cases in 2023.

Similarly, the Florida Department of Health reported a pertussis increase in July 2024 that was higher than the June 2024 case count and also above the previous 5-year average.

Experts in these and other states suggest that several factors are driving the nationwide increase, including the fact that fewer people are consistently wearing masks. The mass masking during the COVID-19 pandemic caused a significant drop in pertussis, but the latest data suggest a return to prepandemic levels, and waning immunity likely plays a role as well.

Pertussis, also known as whooping cough, typically begins with symptoms similar to those of the common cold, including runny nose, sneezing, mild fever, and cough, according to the CDC. However, babies with whooping cough may experience trouble breathing rather than a cough. The coughing fits often associated with pertussis may not start until 2 weeks after the onset of other symptoms, according to the CDC.

Those who have been vaccinated against pertussis can still become infected, but the risk is lower, and the illness, if it occurs, is likely to be milder. Complications such as apnea, pneumonia, and convulsions can occur in babies younger than 1 year, especially if they have not been vaccinated, according to the CDC.
 

Beyond Easing Pandemic Precautions

Many respiratory-based infections dipped during the COVID-19 pandemic, almost certainly from the multifactorial interventions of masking, distancing, and the general lack of comingling, said David J. Cennimo, MD, associate professor of medicine & pediatrics in the Division of Infectious Diseases at Rutgers New Jersey Medical School, Newark, New Jersey, in an interview.

The number of cases of many of these diseases returned to previous levels after COVID-19 restrictions were lifted, he said.

“However, we know pertussis immunity wanes over time. Children get DTaP at 2, 4, 6, and 15 months, and a Tdap booster at 11-12 years old gets them to adulthood,” Dr. Cennimo said. Adults should be getting a Tdap every 10 years, he added.

The latest available CDC data indicate that Tdap vaccine coverage in adults is approximately 40%, which means that there may be a large number of susceptible people who can become infected and propagate to others, said Dr. Cennimo.
 

Not Just the Young Ones

A recent pertussis outbreak among college students in Virginia highlighted the fact that the infection can affect all ages, and that the effectiveness of childhood vaccines may decrease over time. The majority of the recently diagnosed cases occurred in individuals who had been previously vaccinated, according to a press release from the Virginia Department of Health.

Clinical Clues

The initial stage of pertussis infection looks like a common cold with symptoms of upper respiratory infection, Dr. Cennimo told this news organization. “Unless there is reason to suspect pertussis exposure, it would almost certainly be missed,” he noted.

The characteristic barking/seal-like cough is mostly seen in children, said Dr. Cennimo. Adults and children can experience coughing fits that can lead to shortness of breath and/or vomiting, which would raise suspicion for pertussis, but is not universally present, he said. The convalescent stage of pertussis can be prolonged and is characterized by chronic coughing. “In the past, pertussis had been called the 100-day cough,” and at that point, treatment is ineffective, Dr. Cennimo said.

In clinical practice, “I advise everyone to get the Tdap vaccine every 10 years,” and remember that the “Td” is the every 10-year tetanus shot as well, Dr. Cennimo told this news organization. Reassure patients that the Tdap can be given with other vaccines, he said, and remind patients that, as with any of the respiratory illnesses, they should stay home if sick, cover a cough, consider wearing a mask in public, and wash hands frequently, he said. 

Dr. Cennimo had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Pertussis cases in the United States have increased fourfold compared with the same time period last year, according to data from the Centers for Disease Control and Prevention (CDC). Reports from several states illustrate this trend, thought to be due to reduced immunity across the country.

The Alaska Department of Health issued a statement on its website about the significant increase in pertussis cases in the state during the summer, with 90 cases in July and 61 in August, compared with 24 in June and a total of 26 cases in 2023.

Similarly, the Florida Department of Health reported a pertussis increase in July 2024 that was higher than the June 2024 case count and also above the previous 5-year average.

Experts in these and other states suggest that several factors are driving the nationwide increase, including the fact that fewer people are consistently wearing masks. The mass masking during the COVID-19 pandemic caused a significant drop in pertussis, but the latest data suggest a return to prepandemic levels, and waning immunity likely plays a role as well.

Pertussis, also known as whooping cough, typically begins with symptoms similar to those of the common cold, including runny nose, sneezing, mild fever, and cough, according to the CDC. However, babies with whooping cough may experience trouble breathing rather than a cough. The coughing fits often associated with pertussis may not start until 2 weeks after the onset of other symptoms, according to the CDC.

Those who have been vaccinated against pertussis can still become infected, but the risk is lower, and the illness, if it occurs, is likely to be milder. Complications such as apnea, pneumonia, and convulsions can occur in babies younger than 1 year, especially if they have not been vaccinated, according to the CDC.
 

Beyond Easing Pandemic Precautions

Many respiratory-based infections dipped during the COVID-19 pandemic, almost certainly from the multifactorial interventions of masking, distancing, and the general lack of comingling, said David J. Cennimo, MD, associate professor of medicine & pediatrics in the Division of Infectious Diseases at Rutgers New Jersey Medical School, Newark, New Jersey, in an interview.

The number of cases of many of these diseases returned to previous levels after COVID-19 restrictions were lifted, he said.

“However, we know pertussis immunity wanes over time. Children get DTaP at 2, 4, 6, and 15 months, and a Tdap booster at 11-12 years old gets them to adulthood,” Dr. Cennimo said. Adults should be getting a Tdap every 10 years, he added.

The latest available CDC data indicate that Tdap vaccine coverage in adults is approximately 40%, which means that there may be a large number of susceptible people who can become infected and propagate to others, said Dr. Cennimo.
 

Not Just the Young Ones

A recent pertussis outbreak among college students in Virginia highlighted the fact that the infection can affect all ages, and that the effectiveness of childhood vaccines may decrease over time. The majority of the recently diagnosed cases occurred in individuals who had been previously vaccinated, according to a press release from the Virginia Department of Health.

Clinical Clues

The initial stage of pertussis infection looks like a common cold with symptoms of upper respiratory infection, Dr. Cennimo told this news organization. “Unless there is reason to suspect pertussis exposure, it would almost certainly be missed,” he noted.

The characteristic barking/seal-like cough is mostly seen in children, said Dr. Cennimo. Adults and children can experience coughing fits that can lead to shortness of breath and/or vomiting, which would raise suspicion for pertussis, but is not universally present, he said. The convalescent stage of pertussis can be prolonged and is characterized by chronic coughing. “In the past, pertussis had been called the 100-day cough,” and at that point, treatment is ineffective, Dr. Cennimo said.

In clinical practice, “I advise everyone to get the Tdap vaccine every 10 years,” and remember that the “Td” is the every 10-year tetanus shot as well, Dr. Cennimo told this news organization. Reassure patients that the Tdap can be given with other vaccines, he said, and remind patients that, as with any of the respiratory illnesses, they should stay home if sick, cover a cough, consider wearing a mask in public, and wash hands frequently, he said. 

Dr. Cennimo had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

When a large rheumatology clinic in Richmond, Virginia, heard that Medicare would be reimbursing patient navigators, they decided to launch their own virtual navigator program. 

“We read about it and felt like it was the perfect representation of what we were already trying to do,” said Blake Wehman, founder and CEO of Remission Medical, which offers virtual diagnosis and longitudinal care in rheumatology.

Mr. Wehman has plans to start submitting for these principal illness navigation (PIN) codes in 2025. 

The Centers for Medicare & Medicaid Services (CMS) in 2024 began paying navigators who assist Medicare patients with high-risk conditions, which could include rheumatologic diseases. “The codes are not limited to a specific set of diagnoses; rather, the definition of a serious, high-risk condition is dependent on clinical judgment,” the agency clarified. 

CMS established this provision in the CY 2024 Physician Fee Schedule final rule. 

Reimbursing patient navigators is long overdue, noted Edith Williams, PhD, MS, director of the Center for Community Health and Prevention and founding director of the Office of Health Equity Research at the University of Rochester in New York. “It’s something our patients need. It’s something that the science is telling us can impact outcomes as an adjunct to clinical care,” she said. 

John Schlia

Dr. Williams said the new CMS codes “got our departments talking about what this policy is and how it would translate into patient care.”

The codes apply when navigators are assigned to support patients with high-risk conditions who need assistance connecting with clinical and other resources, including any unmet social determinants of health needs, or in diagnosis or treatment of their medical problems.

“Having a navigator by their side to help get through all the clinical and administrative challenges gives people an advocate and a partner who is with them and their families every step of the way to help make the journey easier,” said a CMS spokesperson. 

Not all navigator programs may qualify for the new codes. Some are supported by grants and don’t bill patient insurance. However, they all share a common goal: to guide patients through the healthcare continuum and assist with appointments and medication adherence. 
 

Identifying ‘Root Causes’ of Barriers

Navigators represent a wide variety of backgrounds, ranging from healthcare professionals to students or even patients themselves. They generally don’t provide medical advice. “However, we are responsible for making sure our patients and their families are educated and aware, then assist with guidance on their path,” said Katie Costillo, BSW, CPPN, patient navigator and program manager with the Lupus Foundation of America, Heartland Region.

“Training and experience in engaging and building rapport is essential to assisting patients overcome obstacles that limit their access to healthcare,” she said. Narrowing down with patients the root causes of their barriers and then identifying appropriate and available community resources is key. 

Studies have demonstrated the effectiveness of adding a navigator to a rheumatology patient’s care plan. In one study, a group of Boston researchers determined that navigators played a useful role in reducing adherence barriers to oral disease-modifying antirheumatic drugs. The navigators uncovered several concerns among 107 rheumatology patients, including fear of adverse events and medication effectiveness. 

They also helped to facilitate patient-physician communication, developed strategies to improve medication adherence, and provided medication and diagnosis education. Patients reported satisfaction with the navigator experience.

A study Dr. Williams coauthored that examined behavioral interventions to support African American women with systemic lupus erythematosus found that patient navigator participants had superior coping scores, compared with those engaged in peer-to-peer methodology and patient support groups.

“We had a lot of success with the mentorship program, too,” Dr. Williams said. Navigator services, however, offer more one-on-one attention, “and it’s more tailored to what the person needs rather than the set curriculum that the mentors delivered to their mentees.”
 

Supporting Patients With Lupus

Ideally, navigators should be able to relate to patients and know what they’re going through, Dr. Williams said. This is someone whom the patient can trust and depend on. “That’s where the benefit of having someone who is also a patient lies because they’re ultimately relatable to other patients. But different institutions have taken different approaches to this.” 

Some programs focus on specific rheumatologic conditions. The Lupus Foundation of America, for example, established patient navigator programs to assist patients with lupus in four markets across the country. 

The Heartland patient navigator program is available for all patients with lupus within its region, which includes Kansas, Missouri, and central and southern Illinois. As a navigator, Ms. Costillo has been assisting patients since 2022. In 2023, she began meeting with patients at the Washington University Lupus Clinic (WULC) in St. Louis, Missouri. 

Navigators work directly with patients before and after their appointment to ensure follow-up and reduce missed appointments. “They help lupus patients connect with community services and overcoming barriers to access and care. The goal of this position is to improve overall disease management, which results in better health outcomes,” Ms. Costillo said. 

Since its inception, the patient navigator program at WULC has shown a decrease in patient no-call no-shows and an increase in requests to reschedule as opposed to not showing up for their scheduled appointment, based on history. 

Patients have reported fewer barriers to transportation and improvement in access to resources, support, and disease education. “Our patients have also stated [that] meeting with the navigator during their appointments has helped them to feel heard, understood, and supported,” Ms. Costillo said.
 

Navigator Work Is Not Without Challenges

A total of 90% of patients with lupus are women, and women of color are two to three times more likely to develop lupus in their lifetime. 

“Based on socioeconomic statistics, lupus patients are in a demographic that is commonly underserved, underfunded, and often overlooked. Finding appropriate local community resources for a patient who must choose between feeding her family or paying for transportation to multiple physician appointments is a common problem,” Ms. Costillo said.

Much of the assistance that became available during the COVID pandemic is starting to disappear. “With the rising costs of daily living, we are having to find creative and alternative ways to break down barriers and find support to fill those gaps,” she continued.

Getting insurance coverage of patients is another challenge. Many patients with lupus will be prescribed a treatment that insurance refuses to cover even after the physician disputes it.

Additionally, many patients with lupus are unable to work to support their family. A majority who apply for Social Security Disability Insurance are denied on their first and second attempts, “requiring multiple hearings and pages of documentation from their physicians,” Ms. Costillo said. 
 

Students Serve as Navigators

One inner-city program is seeking to increase access to healthcare services to patients with lupus and lupus nephritis in underserved communities. In 2021, SUNY Downstate Health Sciences University in New York City, in partnership with the Brooklyn Free Clinic and Brooklyn Health Disparities Center, launched a program to teach navigator skills to second-year medical students. 

The students assist patients at the Arthritis Clinic at University Hospital at Downstate. “Many of our patients have either low medical literacy or difficulty with English. Many of them are immigrants,” said Ellen M. Ginzler, MD, MPH, SUNY Downstate’s professor emerita and former vice-chair for research and rheumatology division chief. 

Dr. Ginzler sought out navigator candidates who showed a strong interest in working with underserved patients with complicated, severe disease who struggled with keeping appointments or adhering to medication regimens. The program also gave preference to students fluent in other languages such as Spanish. 

All these efforts have generated improvements in care.

Assessing the program’s effectiveness in a cross-sectional study, Dr. Ginzler and colleagues reported that 94% of navigators were able to schedule appointments and 87% assisted with prescriptions. Navigators also had high success rates in answering medical questions, getting in touch with a patient’s doctor, and reminding patients of medical appointments. 

Medical student Jeremy Wilson, a coauthor of the study, served as a navigator for a woman with lupus and scleroderma for many years, along with other comorbidities.

Mr. Wilson went above and beyond for this patient, helping to secure social services supports that included accompanying her to clinic visits and serving as her advocate. “She found an enormous difference in how she was treated when she went to these clinics because the doctors in those clinics took her much more seriously,” Dr. Ginzler said. Mr. Wilson ran interference to secure clinic appointments and worked with the patient’s rheumatology fellow in the clinic to get approval for medications. 

Mr. Wilson and the patient formed a great bond. “It not only helped the patient, but it helped Jeremy tremendously in terms of how he felt about his medical career,” Dr. Ginzler said. 

The program has since expanded to include patients with other rheumatic diseases, such as rheumatoid arthritis and psoriatic arthritis, and also offers navigator services in dermatology. 

A total of 21 students to date have completed the second year of the program. “We’ve just selected eight more,” Dr. Ginzler said. Some of the students continue to do the program in their third or even fourth year as they’re applying for residencies. 

A student-run, unpublished survey of nine students in the SUNY program found that all nine reported high confidence in identifying social factors that impact patient health and well-being, compared with four who reported high confidence prior to starting the program. “Additionally, students reported increased confidence in providing comprehensive care in rheumatology and dermatology, and interdisciplinary collaboration,” study author Alejandra K. Moncayo, MPH, and colleagues wrote. 
 

When Navigators Go Virtual

Remission Medical offers its navigator service through its own standalone virtual clinic. 

Pain associated with rheumatologic conditions increases the urgency to see a doctor. The goal of the virtual RemissionNavigator program is to meet rheumatology patients where they live, to bridge care gaps and reduce wait times, said Mr. Wehman.

RemissionNavigator accomplishes this through video visits and unlimited texting to its network of board-certified rheumatologists or rheumatology-focused advanced practice providers. Experts can answer questions about why labs are ordered, why a patient may have received a certain diagnosis, or provide detailed explanations of a rheumatic condition. 

“There are instances where improvement for the patient means waiting a couple days for us versus 45 days for their brick-and-mortar choice,” Mr. Wehman said. 

The program currently has 36 subscribers to Remission’s services, which include navigation. “We have 15 providers in a blend of employed and contracted relationships with Remission,” Mr. Wehman said. 

Even in its infancy, the navigator program has produced some success stories. “We had a patient tell us that thanks to us, he was seen faster, found relief immediately through our diagnosis and prescription of methotrexate, felt better at work, lost weight, and was happier in general,” Mr. Wehman said. 

Another patient was making monthly, 90-minute trips to Richmond for infusion services. Through the virtual program’s assistance, she is now receiving care from home and can get her monthly infusions at a local clinic. 

Ultimately, the goal is to help rheumatology move into an era of value-based care where the transition from fee-for-service to per patient will enable optimized care models and better accessibility, Mr. Wehman said. “It will not happen overnight, but every day we work toward this future.”
 

VA Targets Rheumatology Care

The Department of Veterans Affairs (VA) has also explored the use of navigator services in rheumatology, including virtual services. 

VA uses an integrated, interdisciplinary model that manages each veteran’s individual healthcare needs through a coordinated effort among providers, nurses, social workers, pharmacists, and other health professionals, according to VA press secretary Terrence Hayes.

Care coordination may include supporting scheduling appointments, managing chronic conditions, and coordinating care across different medical departments. “This coordination is particularly important in managing complex rheumatologic conditions, where multiple providers may be involved,” Mr. Hayes said.

Additionally, VA has launched a national telerheumatology initiative to improve access to rheumatology providers in rural areas. The initiative will assist veterans in understanding the telehealth system, navigating appointments, and ensuring they have the necessary technology for virtual consultations. 

“It will also facilitate communication between rheumatologists, primary care providers, and other specialists, ensuring that all team members are aligned in their approach to the veteran’s care,” Mr. Hayes said.
 

Who Will Take Advantage of New Codes? 

Currently, Remission Medical operates on a cash-pay model, but the company intends to transition to insurance-based coverage in 2025. 

Remission Medical also partners directly with preexisting healthcare systems and clinics such as Sentara Health and OrthoVirginia, where a PIN program, powered by Remission Medical’s virtual rheumatology network, may be explored as well. 

The company offers its partners synchronous virtual visits and e-consults. It’s likely that these larger organizations will explore coverage for navigator services for Medicare and private insurance. “We can be there to support them as they decide to implement this,” Mr. Wehman said.

Taking advantage of CMS’s navigator PIN codes is an eventual goal. Remission Medical has not submitted the codes yet, “but we do intend to as we continue to grow our membership count,” Mr. Wehman said. “We hope to provide coverage for most of the US and submit the codes to reimbursement by early to mid-2025.” 

In terms of reimbursement, the VA operates under a different payment model than Medicare or private insurance, focusing on providing integrated care within the VA system rather than reimbursing for specific services such as patient navigation.

While the SUNY clinic takes care of Medicare patients, it’s unlikely that the new CMS codes for navigators would apply to medical students. Students get paid a monthly stipend for doing navigator work. “There’s a policy about what students can get paid, and how many hours they can work,” Dr. Ginzler clarified. 

The SUNY Downstate and Lupus Foundation navigator programs rely on grants to sustain their services. Aurinia Pharmaceuticals has funded both programs, and the SUNY program received an additional grant from Janssen to expand its offerings. 

Because it’s grant funded, the navigator position at the Lupus Foundation does not bill patient insurance, Ms. Costillo explained. 
 

Navigator Work Requires Training

Before they start working with patients, navigators often go through a vetting or training process. At Remission Medical, a clinical leadership team does a synchronous interview, background check, and CV review of its potential navigators. 

Even before she became a navigator, Ms. Costillo had a strong baseline education in this work. She has a bachelor’s degree in social work and 15 years of experience in social services working with disabled, vulnerable, and underserved populations. Some of her fellow navigators at the Lupus Foundation of America also have degrees in social work. 

Ms. Costillo underwent training with the Patient-Centered Education & Research Institute to become a certified professional patient navigator. Her name is on the national registry. The curriculum covered various aspects of medical care such as patient and care team interactions and communications, health and clinical knowledge, patient care coordination and resources, and using evidence-based approaches. 

“For our lupus patients, it is essential that navigators understand the disease and the impact on patients and families, treatments available and those in the pipelines, and also the ins and outs of various insurance options,” Ms. Costillo said.

Mr. Wehman, Dr. Williams, and Ms. Costillo reported no disclosures. Dr. Ginzler has been a consultant for Aurinia Pharmaceuticals.

A version of this article first appeared on Medscape.com.

When a large rheumatology clinic in Richmond, Virginia, heard that Medicare would be reimbursing patient navigators, they decided to launch their own virtual navigator program. 

“We read about it and felt like it was the perfect representation of what we were already trying to do,” said Blake Wehman, founder and CEO of Remission Medical, which offers virtual diagnosis and longitudinal care in rheumatology.

Mr. Wehman has plans to start submitting for these principal illness navigation (PIN) codes in 2025. 

The Centers for Medicare & Medicaid Services (CMS) in 2024 began paying navigators who assist Medicare patients with high-risk conditions, which could include rheumatologic diseases. “The codes are not limited to a specific set of diagnoses; rather, the definition of a serious, high-risk condition is dependent on clinical judgment,” the agency clarified. 

CMS established this provision in the CY 2024 Physician Fee Schedule final rule. 

Reimbursing patient navigators is long overdue, noted Edith Williams, PhD, MS, director of the Center for Community Health and Prevention and founding director of the Office of Health Equity Research at the University of Rochester in New York. “It’s something our patients need. It’s something that the science is telling us can impact outcomes as an adjunct to clinical care,” she said. 

John Schlia

Dr. Williams said the new CMS codes “got our departments talking about what this policy is and how it would translate into patient care.”

The codes apply when navigators are assigned to support patients with high-risk conditions who need assistance connecting with clinical and other resources, including any unmet social determinants of health needs, or in diagnosis or treatment of their medical problems.

“Having a navigator by their side to help get through all the clinical and administrative challenges gives people an advocate and a partner who is with them and their families every step of the way to help make the journey easier,” said a CMS spokesperson. 

Not all navigator programs may qualify for the new codes. Some are supported by grants and don’t bill patient insurance. However, they all share a common goal: to guide patients through the healthcare continuum and assist with appointments and medication adherence. 
 

Identifying ‘Root Causes’ of Barriers

Navigators represent a wide variety of backgrounds, ranging from healthcare professionals to students or even patients themselves. They generally don’t provide medical advice. “However, we are responsible for making sure our patients and their families are educated and aware, then assist with guidance on their path,” said Katie Costillo, BSW, CPPN, patient navigator and program manager with the Lupus Foundation of America, Heartland Region.

“Training and experience in engaging and building rapport is essential to assisting patients overcome obstacles that limit their access to healthcare,” she said. Narrowing down with patients the root causes of their barriers and then identifying appropriate and available community resources is key. 

Studies have demonstrated the effectiveness of adding a navigator to a rheumatology patient’s care plan. In one study, a group of Boston researchers determined that navigators played a useful role in reducing adherence barriers to oral disease-modifying antirheumatic drugs. The navigators uncovered several concerns among 107 rheumatology patients, including fear of adverse events and medication effectiveness. 

They also helped to facilitate patient-physician communication, developed strategies to improve medication adherence, and provided medication and diagnosis education. Patients reported satisfaction with the navigator experience.

A study Dr. Williams coauthored that examined behavioral interventions to support African American women with systemic lupus erythematosus found that patient navigator participants had superior coping scores, compared with those engaged in peer-to-peer methodology and patient support groups.

“We had a lot of success with the mentorship program, too,” Dr. Williams said. Navigator services, however, offer more one-on-one attention, “and it’s more tailored to what the person needs rather than the set curriculum that the mentors delivered to their mentees.”
 

Supporting Patients With Lupus

Ideally, navigators should be able to relate to patients and know what they’re going through, Dr. Williams said. This is someone whom the patient can trust and depend on. “That’s where the benefit of having someone who is also a patient lies because they’re ultimately relatable to other patients. But different institutions have taken different approaches to this.” 

Some programs focus on specific rheumatologic conditions. The Lupus Foundation of America, for example, established patient navigator programs to assist patients with lupus in four markets across the country. 

The Heartland patient navigator program is available for all patients with lupus within its region, which includes Kansas, Missouri, and central and southern Illinois. As a navigator, Ms. Costillo has been assisting patients since 2022. In 2023, she began meeting with patients at the Washington University Lupus Clinic (WULC) in St. Louis, Missouri. 

Navigators work directly with patients before and after their appointment to ensure follow-up and reduce missed appointments. “They help lupus patients connect with community services and overcoming barriers to access and care. The goal of this position is to improve overall disease management, which results in better health outcomes,” Ms. Costillo said. 

Since its inception, the patient navigator program at WULC has shown a decrease in patient no-call no-shows and an increase in requests to reschedule as opposed to not showing up for their scheduled appointment, based on history. 

Patients have reported fewer barriers to transportation and improvement in access to resources, support, and disease education. “Our patients have also stated [that] meeting with the navigator during their appointments has helped them to feel heard, understood, and supported,” Ms. Costillo said.
 

Navigator Work Is Not Without Challenges

A total of 90% of patients with lupus are women, and women of color are two to three times more likely to develop lupus in their lifetime. 

“Based on socioeconomic statistics, lupus patients are in a demographic that is commonly underserved, underfunded, and often overlooked. Finding appropriate local community resources for a patient who must choose between feeding her family or paying for transportation to multiple physician appointments is a common problem,” Ms. Costillo said.

Much of the assistance that became available during the COVID pandemic is starting to disappear. “With the rising costs of daily living, we are having to find creative and alternative ways to break down barriers and find support to fill those gaps,” she continued.

Getting insurance coverage of patients is another challenge. Many patients with lupus will be prescribed a treatment that insurance refuses to cover even after the physician disputes it.

Additionally, many patients with lupus are unable to work to support their family. A majority who apply for Social Security Disability Insurance are denied on their first and second attempts, “requiring multiple hearings and pages of documentation from their physicians,” Ms. Costillo said. 
 

Students Serve as Navigators

One inner-city program is seeking to increase access to healthcare services to patients with lupus and lupus nephritis in underserved communities. In 2021, SUNY Downstate Health Sciences University in New York City, in partnership with the Brooklyn Free Clinic and Brooklyn Health Disparities Center, launched a program to teach navigator skills to second-year medical students. 

The students assist patients at the Arthritis Clinic at University Hospital at Downstate. “Many of our patients have either low medical literacy or difficulty with English. Many of them are immigrants,” said Ellen M. Ginzler, MD, MPH, SUNY Downstate’s professor emerita and former vice-chair for research and rheumatology division chief. 

Dr. Ginzler sought out navigator candidates who showed a strong interest in working with underserved patients with complicated, severe disease who struggled with keeping appointments or adhering to medication regimens. The program also gave preference to students fluent in other languages such as Spanish. 

All these efforts have generated improvements in care.

Assessing the program’s effectiveness in a cross-sectional study, Dr. Ginzler and colleagues reported that 94% of navigators were able to schedule appointments and 87% assisted with prescriptions. Navigators also had high success rates in answering medical questions, getting in touch with a patient’s doctor, and reminding patients of medical appointments. 

Medical student Jeremy Wilson, a coauthor of the study, served as a navigator for a woman with lupus and scleroderma for many years, along with other comorbidities.

Mr. Wilson went above and beyond for this patient, helping to secure social services supports that included accompanying her to clinic visits and serving as her advocate. “She found an enormous difference in how she was treated when she went to these clinics because the doctors in those clinics took her much more seriously,” Dr. Ginzler said. Mr. Wilson ran interference to secure clinic appointments and worked with the patient’s rheumatology fellow in the clinic to get approval for medications. 

Mr. Wilson and the patient formed a great bond. “It not only helped the patient, but it helped Jeremy tremendously in terms of how he felt about his medical career,” Dr. Ginzler said. 

The program has since expanded to include patients with other rheumatic diseases, such as rheumatoid arthritis and psoriatic arthritis, and also offers navigator services in dermatology. 

A total of 21 students to date have completed the second year of the program. “We’ve just selected eight more,” Dr. Ginzler said. Some of the students continue to do the program in their third or even fourth year as they’re applying for residencies. 

A student-run, unpublished survey of nine students in the SUNY program found that all nine reported high confidence in identifying social factors that impact patient health and well-being, compared with four who reported high confidence prior to starting the program. “Additionally, students reported increased confidence in providing comprehensive care in rheumatology and dermatology, and interdisciplinary collaboration,” study author Alejandra K. Moncayo, MPH, and colleagues wrote. 
 

When Navigators Go Virtual

Remission Medical offers its navigator service through its own standalone virtual clinic. 

Pain associated with rheumatologic conditions increases the urgency to see a doctor. The goal of the virtual RemissionNavigator program is to meet rheumatology patients where they live, to bridge care gaps and reduce wait times, said Mr. Wehman.

RemissionNavigator accomplishes this through video visits and unlimited texting to its network of board-certified rheumatologists or rheumatology-focused advanced practice providers. Experts can answer questions about why labs are ordered, why a patient may have received a certain diagnosis, or provide detailed explanations of a rheumatic condition. 

“There are instances where improvement for the patient means waiting a couple days for us versus 45 days for their brick-and-mortar choice,” Mr. Wehman said. 

The program currently has 36 subscribers to Remission’s services, which include navigation. “We have 15 providers in a blend of employed and contracted relationships with Remission,” Mr. Wehman said. 

Even in its infancy, the navigator program has produced some success stories. “We had a patient tell us that thanks to us, he was seen faster, found relief immediately through our diagnosis and prescription of methotrexate, felt better at work, lost weight, and was happier in general,” Mr. Wehman said. 

Another patient was making monthly, 90-minute trips to Richmond for infusion services. Through the virtual program’s assistance, she is now receiving care from home and can get her monthly infusions at a local clinic. 

Ultimately, the goal is to help rheumatology move into an era of value-based care where the transition from fee-for-service to per patient will enable optimized care models and better accessibility, Mr. Wehman said. “It will not happen overnight, but every day we work toward this future.”
 

VA Targets Rheumatology Care

The Department of Veterans Affairs (VA) has also explored the use of navigator services in rheumatology, including virtual services. 

VA uses an integrated, interdisciplinary model that manages each veteran’s individual healthcare needs through a coordinated effort among providers, nurses, social workers, pharmacists, and other health professionals, according to VA press secretary Terrence Hayes.

Care coordination may include supporting scheduling appointments, managing chronic conditions, and coordinating care across different medical departments. “This coordination is particularly important in managing complex rheumatologic conditions, where multiple providers may be involved,” Mr. Hayes said.

Additionally, VA has launched a national telerheumatology initiative to improve access to rheumatology providers in rural areas. The initiative will assist veterans in understanding the telehealth system, navigating appointments, and ensuring they have the necessary technology for virtual consultations. 

“It will also facilitate communication between rheumatologists, primary care providers, and other specialists, ensuring that all team members are aligned in their approach to the veteran’s care,” Mr. Hayes said.
 

Who Will Take Advantage of New Codes? 

Currently, Remission Medical operates on a cash-pay model, but the company intends to transition to insurance-based coverage in 2025. 

Remission Medical also partners directly with preexisting healthcare systems and clinics such as Sentara Health and OrthoVirginia, where a PIN program, powered by Remission Medical’s virtual rheumatology network, may be explored as well. 

The company offers its partners synchronous virtual visits and e-consults. It’s likely that these larger organizations will explore coverage for navigator services for Medicare and private insurance. “We can be there to support them as they decide to implement this,” Mr. Wehman said.

Taking advantage of CMS’s navigator PIN codes is an eventual goal. Remission Medical has not submitted the codes yet, “but we do intend to as we continue to grow our membership count,” Mr. Wehman said. “We hope to provide coverage for most of the US and submit the codes to reimbursement by early to mid-2025.” 

In terms of reimbursement, the VA operates under a different payment model than Medicare or private insurance, focusing on providing integrated care within the VA system rather than reimbursing for specific services such as patient navigation.

While the SUNY clinic takes care of Medicare patients, it’s unlikely that the new CMS codes for navigators would apply to medical students. Students get paid a monthly stipend for doing navigator work. “There’s a policy about what students can get paid, and how many hours they can work,” Dr. Ginzler clarified. 

The SUNY Downstate and Lupus Foundation navigator programs rely on grants to sustain their services. Aurinia Pharmaceuticals has funded both programs, and the SUNY program received an additional grant from Janssen to expand its offerings. 

Because it’s grant funded, the navigator position at the Lupus Foundation does not bill patient insurance, Ms. Costillo explained. 
 

Navigator Work Requires Training

Before they start working with patients, navigators often go through a vetting or training process. At Remission Medical, a clinical leadership team does a synchronous interview, background check, and CV review of its potential navigators. 

Even before she became a navigator, Ms. Costillo had a strong baseline education in this work. She has a bachelor’s degree in social work and 15 years of experience in social services working with disabled, vulnerable, and underserved populations. Some of her fellow navigators at the Lupus Foundation of America also have degrees in social work. 

Ms. Costillo underwent training with the Patient-Centered Education & Research Institute to become a certified professional patient navigator. Her name is on the national registry. The curriculum covered various aspects of medical care such as patient and care team interactions and communications, health and clinical knowledge, patient care coordination and resources, and using evidence-based approaches. 

“For our lupus patients, it is essential that navigators understand the disease and the impact on patients and families, treatments available and those in the pipelines, and also the ins and outs of various insurance options,” Ms. Costillo said.

Mr. Wehman, Dr. Williams, and Ms. Costillo reported no disclosures. Dr. Ginzler has been a consultant for Aurinia Pharmaceuticals.

A version of this article first appeared on Medscape.com.

When a large rheumatology clinic in Richmond, Virginia, heard that Medicare would be reimbursing patient navigators, they decided to launch their own virtual navigator program. 

“We read about it and felt like it was the perfect representation of what we were already trying to do,” said Blake Wehman, founder and CEO of Remission Medical, which offers virtual diagnosis and longitudinal care in rheumatology.

Mr. Wehman has plans to start submitting for these principal illness navigation (PIN) codes in 2025. 

The Centers for Medicare & Medicaid Services (CMS) in 2024 began paying navigators who assist Medicare patients with high-risk conditions, which could include rheumatologic diseases. “The codes are not limited to a specific set of diagnoses; rather, the definition of a serious, high-risk condition is dependent on clinical judgment,” the agency clarified. 

CMS established this provision in the CY 2024 Physician Fee Schedule final rule. 

Reimbursing patient navigators is long overdue, noted Edith Williams, PhD, MS, director of the Center for Community Health and Prevention and founding director of the Office of Health Equity Research at the University of Rochester in New York. “It’s something our patients need. It’s something that the science is telling us can impact outcomes as an adjunct to clinical care,” she said. 

John Schlia

Dr. Williams said the new CMS codes “got our departments talking about what this policy is and how it would translate into patient care.”

The codes apply when navigators are assigned to support patients with high-risk conditions who need assistance connecting with clinical and other resources, including any unmet social determinants of health needs, or in diagnosis or treatment of their medical problems.

“Having a navigator by their side to help get through all the clinical and administrative challenges gives people an advocate and a partner who is with them and their families every step of the way to help make the journey easier,” said a CMS spokesperson. 

Not all navigator programs may qualify for the new codes. Some are supported by grants and don’t bill patient insurance. However, they all share a common goal: to guide patients through the healthcare continuum and assist with appointments and medication adherence. 
 

Identifying ‘Root Causes’ of Barriers

Navigators represent a wide variety of backgrounds, ranging from healthcare professionals to students or even patients themselves. They generally don’t provide medical advice. “However, we are responsible for making sure our patients and their families are educated and aware, then assist with guidance on their path,” said Katie Costillo, BSW, CPPN, patient navigator and program manager with the Lupus Foundation of America, Heartland Region.

“Training and experience in engaging and building rapport is essential to assisting patients overcome obstacles that limit their access to healthcare,” she said. Narrowing down with patients the root causes of their barriers and then identifying appropriate and available community resources is key. 

Studies have demonstrated the effectiveness of adding a navigator to a rheumatology patient’s care plan. In one study, a group of Boston researchers determined that navigators played a useful role in reducing adherence barriers to oral disease-modifying antirheumatic drugs. The navigators uncovered several concerns among 107 rheumatology patients, including fear of adverse events and medication effectiveness. 

They also helped to facilitate patient-physician communication, developed strategies to improve medication adherence, and provided medication and diagnosis education. Patients reported satisfaction with the navigator experience.

A study Dr. Williams coauthored that examined behavioral interventions to support African American women with systemic lupus erythematosus found that patient navigator participants had superior coping scores, compared with those engaged in peer-to-peer methodology and patient support groups.

“We had a lot of success with the mentorship program, too,” Dr. Williams said. Navigator services, however, offer more one-on-one attention, “and it’s more tailored to what the person needs rather than the set curriculum that the mentors delivered to their mentees.”
 

Supporting Patients With Lupus

Ideally, navigators should be able to relate to patients and know what they’re going through, Dr. Williams said. This is someone whom the patient can trust and depend on. “That’s where the benefit of having someone who is also a patient lies because they’re ultimately relatable to other patients. But different institutions have taken different approaches to this.” 

Some programs focus on specific rheumatologic conditions. The Lupus Foundation of America, for example, established patient navigator programs to assist patients with lupus in four markets across the country. 

The Heartland patient navigator program is available for all patients with lupus within its region, which includes Kansas, Missouri, and central and southern Illinois. As a navigator, Ms. Costillo has been assisting patients since 2022. In 2023, she began meeting with patients at the Washington University Lupus Clinic (WULC) in St. Louis, Missouri. 

Navigators work directly with patients before and after their appointment to ensure follow-up and reduce missed appointments. “They help lupus patients connect with community services and overcoming barriers to access and care. The goal of this position is to improve overall disease management, which results in better health outcomes,” Ms. Costillo said. 

Since its inception, the patient navigator program at WULC has shown a decrease in patient no-call no-shows and an increase in requests to reschedule as opposed to not showing up for their scheduled appointment, based on history. 

Patients have reported fewer barriers to transportation and improvement in access to resources, support, and disease education. “Our patients have also stated [that] meeting with the navigator during their appointments has helped them to feel heard, understood, and supported,” Ms. Costillo said.
 

Navigator Work Is Not Without Challenges

A total of 90% of patients with lupus are women, and women of color are two to three times more likely to develop lupus in their lifetime. 

“Based on socioeconomic statistics, lupus patients are in a demographic that is commonly underserved, underfunded, and often overlooked. Finding appropriate local community resources for a patient who must choose between feeding her family or paying for transportation to multiple physician appointments is a common problem,” Ms. Costillo said.

Much of the assistance that became available during the COVID pandemic is starting to disappear. “With the rising costs of daily living, we are having to find creative and alternative ways to break down barriers and find support to fill those gaps,” she continued.

Getting insurance coverage of patients is another challenge. Many patients with lupus will be prescribed a treatment that insurance refuses to cover even after the physician disputes it.

Additionally, many patients with lupus are unable to work to support their family. A majority who apply for Social Security Disability Insurance are denied on their first and second attempts, “requiring multiple hearings and pages of documentation from their physicians,” Ms. Costillo said. 
 

Students Serve as Navigators

One inner-city program is seeking to increase access to healthcare services to patients with lupus and lupus nephritis in underserved communities. In 2021, SUNY Downstate Health Sciences University in New York City, in partnership with the Brooklyn Free Clinic and Brooklyn Health Disparities Center, launched a program to teach navigator skills to second-year medical students. 

The students assist patients at the Arthritis Clinic at University Hospital at Downstate. “Many of our patients have either low medical literacy or difficulty with English. Many of them are immigrants,” said Ellen M. Ginzler, MD, MPH, SUNY Downstate’s professor emerita and former vice-chair for research and rheumatology division chief. 

Dr. Ginzler sought out navigator candidates who showed a strong interest in working with underserved patients with complicated, severe disease who struggled with keeping appointments or adhering to medication regimens. The program also gave preference to students fluent in other languages such as Spanish. 

All these efforts have generated improvements in care.

Assessing the program’s effectiveness in a cross-sectional study, Dr. Ginzler and colleagues reported that 94% of navigators were able to schedule appointments and 87% assisted with prescriptions. Navigators also had high success rates in answering medical questions, getting in touch with a patient’s doctor, and reminding patients of medical appointments. 

Medical student Jeremy Wilson, a coauthor of the study, served as a navigator for a woman with lupus and scleroderma for many years, along with other comorbidities.

Mr. Wilson went above and beyond for this patient, helping to secure social services supports that included accompanying her to clinic visits and serving as her advocate. “She found an enormous difference in how she was treated when she went to these clinics because the doctors in those clinics took her much more seriously,” Dr. Ginzler said. Mr. Wilson ran interference to secure clinic appointments and worked with the patient’s rheumatology fellow in the clinic to get approval for medications. 

Mr. Wilson and the patient formed a great bond. “It not only helped the patient, but it helped Jeremy tremendously in terms of how he felt about his medical career,” Dr. Ginzler said. 

The program has since expanded to include patients with other rheumatic diseases, such as rheumatoid arthritis and psoriatic arthritis, and also offers navigator services in dermatology. 

A total of 21 students to date have completed the second year of the program. “We’ve just selected eight more,” Dr. Ginzler said. Some of the students continue to do the program in their third or even fourth year as they’re applying for residencies. 

A student-run, unpublished survey of nine students in the SUNY program found that all nine reported high confidence in identifying social factors that impact patient health and well-being, compared with four who reported high confidence prior to starting the program. “Additionally, students reported increased confidence in providing comprehensive care in rheumatology and dermatology, and interdisciplinary collaboration,” study author Alejandra K. Moncayo, MPH, and colleagues wrote. 
 

When Navigators Go Virtual

Remission Medical offers its navigator service through its own standalone virtual clinic. 

Pain associated with rheumatologic conditions increases the urgency to see a doctor. The goal of the virtual RemissionNavigator program is to meet rheumatology patients where they live, to bridge care gaps and reduce wait times, said Mr. Wehman.

RemissionNavigator accomplishes this through video visits and unlimited texting to its network of board-certified rheumatologists or rheumatology-focused advanced practice providers. Experts can answer questions about why labs are ordered, why a patient may have received a certain diagnosis, or provide detailed explanations of a rheumatic condition. 

“There are instances where improvement for the patient means waiting a couple days for us versus 45 days for their brick-and-mortar choice,” Mr. Wehman said. 

The program currently has 36 subscribers to Remission’s services, which include navigation. “We have 15 providers in a blend of employed and contracted relationships with Remission,” Mr. Wehman said. 

Even in its infancy, the navigator program has produced some success stories. “We had a patient tell us that thanks to us, he was seen faster, found relief immediately through our diagnosis and prescription of methotrexate, felt better at work, lost weight, and was happier in general,” Mr. Wehman said. 

Another patient was making monthly, 90-minute trips to Richmond for infusion services. Through the virtual program’s assistance, she is now receiving care from home and can get her monthly infusions at a local clinic. 

Ultimately, the goal is to help rheumatology move into an era of value-based care where the transition from fee-for-service to per patient will enable optimized care models and better accessibility, Mr. Wehman said. “It will not happen overnight, but every day we work toward this future.”
 

VA Targets Rheumatology Care

The Department of Veterans Affairs (VA) has also explored the use of navigator services in rheumatology, including virtual services. 

VA uses an integrated, interdisciplinary model that manages each veteran’s individual healthcare needs through a coordinated effort among providers, nurses, social workers, pharmacists, and other health professionals, according to VA press secretary Terrence Hayes.

Care coordination may include supporting scheduling appointments, managing chronic conditions, and coordinating care across different medical departments. “This coordination is particularly important in managing complex rheumatologic conditions, where multiple providers may be involved,” Mr. Hayes said.

Additionally, VA has launched a national telerheumatology initiative to improve access to rheumatology providers in rural areas. The initiative will assist veterans in understanding the telehealth system, navigating appointments, and ensuring they have the necessary technology for virtual consultations. 

“It will also facilitate communication between rheumatologists, primary care providers, and other specialists, ensuring that all team members are aligned in their approach to the veteran’s care,” Mr. Hayes said.
 

Who Will Take Advantage of New Codes? 

Currently, Remission Medical operates on a cash-pay model, but the company intends to transition to insurance-based coverage in 2025. 

Remission Medical also partners directly with preexisting healthcare systems and clinics such as Sentara Health and OrthoVirginia, where a PIN program, powered by Remission Medical’s virtual rheumatology network, may be explored as well. 

The company offers its partners synchronous virtual visits and e-consults. It’s likely that these larger organizations will explore coverage for navigator services for Medicare and private insurance. “We can be there to support them as they decide to implement this,” Mr. Wehman said.

Taking advantage of CMS’s navigator PIN codes is an eventual goal. Remission Medical has not submitted the codes yet, “but we do intend to as we continue to grow our membership count,” Mr. Wehman said. “We hope to provide coverage for most of the US and submit the codes to reimbursement by early to mid-2025.” 

In terms of reimbursement, the VA operates under a different payment model than Medicare or private insurance, focusing on providing integrated care within the VA system rather than reimbursing for specific services such as patient navigation.

While the SUNY clinic takes care of Medicare patients, it’s unlikely that the new CMS codes for navigators would apply to medical students. Students get paid a monthly stipend for doing navigator work. “There’s a policy about what students can get paid, and how many hours they can work,” Dr. Ginzler clarified. 

The SUNY Downstate and Lupus Foundation navigator programs rely on grants to sustain their services. Aurinia Pharmaceuticals has funded both programs, and the SUNY program received an additional grant from Janssen to expand its offerings. 

Because it’s grant funded, the navigator position at the Lupus Foundation does not bill patient insurance, Ms. Costillo explained. 
 

Navigator Work Requires Training

Before they start working with patients, navigators often go through a vetting or training process. At Remission Medical, a clinical leadership team does a synchronous interview, background check, and CV review of its potential navigators. 

Even before she became a navigator, Ms. Costillo had a strong baseline education in this work. She has a bachelor’s degree in social work and 15 years of experience in social services working with disabled, vulnerable, and underserved populations. Some of her fellow navigators at the Lupus Foundation of America also have degrees in social work. 

Ms. Costillo underwent training with the Patient-Centered Education & Research Institute to become a certified professional patient navigator. Her name is on the national registry. The curriculum covered various aspects of medical care such as patient and care team interactions and communications, health and clinical knowledge, patient care coordination and resources, and using evidence-based approaches. 

“For our lupus patients, it is essential that navigators understand the disease and the impact on patients and families, treatments available and those in the pipelines, and also the ins and outs of various insurance options,” Ms. Costillo said.

Mr. Wehman, Dr. Williams, and Ms. Costillo reported no disclosures. Dr. Ginzler has been a consultant for Aurinia Pharmaceuticals.

A version of this article first appeared on Medscape.com.

The US Food and Drug Administration (FDA) has granted a second-line indication to amivantamab-vmjw (Rybrevant, Janssen Biotech) in non–small-cell lung cancer (NSCLC). 

Amivantamab with carboplatin and pemetrexed is now indicated for adults with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations whose disease has progressed on or after treatment with an EGFR tyrosine kinase inhibitor (TKI).

The FDA has already approved first-line use of amivantamab in combination with carboplatin and pemetrexed in patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as reported by Medscape Medical News. 

The second-line approval for amivantamab plus chemotherapy “may address the most common mechanisms of treatment resistance to third-generation EGFR TKIs, such as osimertinib, in the first line,” Martin Dietrich, MD, PhD, oncologist, Cancer Care Centers of Brevard in Florida, said in a company news release.

“This multitargeted combination extended progression-free survival (PFS) and improved overall response compared to chemotherapy alone, offering an important and effective new second-line option for patients,” Dr. Dietrich added. 

The second-line indication is supported by the phase 3 MARIPOSA-2 study, which included 657 patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations and disease progression on or after receiving osimertinib.

The study demonstrated a 52% reduced risk of disease progression or death when amivantamab was added to carboplatin and pemetrexed (hazard ratio, 0.48). 

Median PFS was 6.3 months with amivantamab vs 4.2 months with chemotherapy alone. The confirmed objective response rate was 53% in the amivantamab plus chemotherapy group vs 29% in the chemotherapy only group. 

The most common adverse reactions, occurring in at least 20% of patients, were rash, infusion-related reactions, fatigue, nail toxicity, nausea, constipation, edema, stomatitis, decreased appetite, musculoskeletal pain, vomiting, and COVID-19 infection.

The company noted that amivantamab in combination with chemotherapy is the only category 1 treatment option in National Comprehensive Cancer Network clinical practice guidelines for patients with EGFR-mutated NSCLC who have progressed on osimertinib and who are symptomatic with multiple lesions.

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has granted a second-line indication to amivantamab-vmjw (Rybrevant, Janssen Biotech) in non–small-cell lung cancer (NSCLC). 

Amivantamab with carboplatin and pemetrexed is now indicated for adults with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations whose disease has progressed on or after treatment with an EGFR tyrosine kinase inhibitor (TKI).

The FDA has already approved first-line use of amivantamab in combination with carboplatin and pemetrexed in patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as reported by Medscape Medical News. 

The second-line approval for amivantamab plus chemotherapy “may address the most common mechanisms of treatment resistance to third-generation EGFR TKIs, such as osimertinib, in the first line,” Martin Dietrich, MD, PhD, oncologist, Cancer Care Centers of Brevard in Florida, said in a company news release.

“This multitargeted combination extended progression-free survival (PFS) and improved overall response compared to chemotherapy alone, offering an important and effective new second-line option for patients,” Dr. Dietrich added. 

The second-line indication is supported by the phase 3 MARIPOSA-2 study, which included 657 patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations and disease progression on or after receiving osimertinib.

The study demonstrated a 52% reduced risk of disease progression or death when amivantamab was added to carboplatin and pemetrexed (hazard ratio, 0.48). 

Median PFS was 6.3 months with amivantamab vs 4.2 months with chemotherapy alone. The confirmed objective response rate was 53% in the amivantamab plus chemotherapy group vs 29% in the chemotherapy only group. 

The most common adverse reactions, occurring in at least 20% of patients, were rash, infusion-related reactions, fatigue, nail toxicity, nausea, constipation, edema, stomatitis, decreased appetite, musculoskeletal pain, vomiting, and COVID-19 infection.

The company noted that amivantamab in combination with chemotherapy is the only category 1 treatment option in National Comprehensive Cancer Network clinical practice guidelines for patients with EGFR-mutated NSCLC who have progressed on osimertinib and who are symptomatic with multiple lesions.

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has granted a second-line indication to amivantamab-vmjw (Rybrevant, Janssen Biotech) in non–small-cell lung cancer (NSCLC). 

Amivantamab with carboplatin and pemetrexed is now indicated for adults with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations whose disease has progressed on or after treatment with an EGFR tyrosine kinase inhibitor (TKI).

The FDA has already approved first-line use of amivantamab in combination with carboplatin and pemetrexed in patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as reported by Medscape Medical News. 

The second-line approval for amivantamab plus chemotherapy “may address the most common mechanisms of treatment resistance to third-generation EGFR TKIs, such as osimertinib, in the first line,” Martin Dietrich, MD, PhD, oncologist, Cancer Care Centers of Brevard in Florida, said in a company news release.

“This multitargeted combination extended progression-free survival (PFS) and improved overall response compared to chemotherapy alone, offering an important and effective new second-line option for patients,” Dr. Dietrich added. 

The second-line indication is supported by the phase 3 MARIPOSA-2 study, which included 657 patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations and disease progression on or after receiving osimertinib.

The study demonstrated a 52% reduced risk of disease progression or death when amivantamab was added to carboplatin and pemetrexed (hazard ratio, 0.48). 

Median PFS was 6.3 months with amivantamab vs 4.2 months with chemotherapy alone. The confirmed objective response rate was 53% in the amivantamab plus chemotherapy group vs 29% in the chemotherapy only group. 

The most common adverse reactions, occurring in at least 20% of patients, were rash, infusion-related reactions, fatigue, nail toxicity, nausea, constipation, edema, stomatitis, decreased appetite, musculoskeletal pain, vomiting, and COVID-19 infection.

The company noted that amivantamab in combination with chemotherapy is the only category 1 treatment option in National Comprehensive Cancer Network clinical practice guidelines for patients with EGFR-mutated NSCLC who have progressed on osimertinib and who are symptomatic with multiple lesions.

A version of this article appeared on Medscape.com.

Air pollution, high temperatures, and metabolic risk factors are driving global increases in stroke, contributing to 12 million cases and more than 7 million deaths from stroke each year, new data from the Global Burden of Disease (GBD) study showed.

Between 1990 and 2021, the number of people who experienced a stroke increased to 11.9 million (up by 70% since 1990), while the number of stroke survivors rose to 93.8 million (up by 86%), and stroke-related deaths rose to 7.3 million (up by 44%), making stroke the third leading cause of death worldwide after ischemic heart disease and COVID-19, investigators found.

Stroke is highly preventable, the investigators noted, with 84% of the stroke burden in 2021 attributable to 23 modifiable risk factors, including air pollution, excess body weight, high blood pressure, smoking, and physical inactivity.

This means there are “tremendous opportunities to alter the trajectory of stroke risk for the next generation,” Catherine O. Johnson, MPH, PhD, co-author and lead research scientist at the Institute for Health Metrics and Evaluation (IHME), University of Washington, Seattle, said in a news release.

The study was published online in The Lancet Neurology.
 

Top Risk Factor for Subarachnoid Hemorrhage

Since 1990, the contribution of high temperatures to poor health and early death due to stroke has risen 72%, a trend likely to increase in the future — underscoring the impact of environmental factors on the growing stroke burden, the authors said.

“Given that ambient air pollution is reciprocally linked with ambient temperature and climate change, the importance of urgent climate actions and measures to reduce air pollution cannot be overestimated,” Dr. Johnson said.

Mitchell S.V. Elkind, MD, MS, chief clinical science officer for the American Heart Association, who wasn’t involved in the study, told this news organization that environmental factors such as air pollution, particulate matter from wildfires and other sources, and excessive heat are now recognized as major contributors to the risk for stroke. “This should not be surprising as we have long recognized the risks of stroke associated with toxins in cigarette smoke, which likely share mechanisms for vascular damage with pollutants,” Dr. Elkind said.

The data also reveal for the first time that ambient particulate matter air pollution is a top risk factor for subarachnoid hemorrhage, contributing to 14% of the death and disability caused by this serious stroke subtype, on a par with smoking.

Dr. Elkind noted that smoking is “a major risk factor for subarachnoid hemorrhage. It makes sense that particulate air pollution would therefore similarly be a risk factor for subarachnoid hemorrhage, which similarly damages blood vessels. Prior studies were likely too small or did not assess the role of air pollution in subarachnoid hemorrhage.”

The analysis also showed substantial increases between 1990 and 2021 in the global stroke burden linked to high body mass index (up by 88%), high blood sugar (up 32%), a diet high in sugar-sweetened drinks (up 23%), low physical activity (up 11%), high systolic blood pressure (up 7%), and a diet low in omega-6 polyunsaturated fatty acids (up 5%).

“And with increasing exposure to risk factors such as high blood sugar and diet high in sugar-sweetened drinks, there is a critical need for interventions focused on obesity and metabolic syndromes,” Dr. Johnson said.

“Identifying sustainable ways to work with communities to take action to prevent and control modifiable risk factors for stroke is essential to address this growing crisis,” she added.
 

Prevention Strategies Fall Short

The data also showed that stroke-related disability-adjusted life-years rose from around 121.4 million years of healthy life lost in 1990 to 160.5 million years in 2021, making stroke the fourth leading cause of health loss worldwide after COVID-19, ischemic heart disease, and neonatal disorders.

“The global growth of the number of people who develop stroke and died from or remain disabled by stroke is growing fast, strongly suggesting that currently used stroke prevention strategies are not sufficiently effective,” lead author Valery L. Feigin, MD, PhD, from Auckland University of Technology, Auckland, New Zealand, and affiliate professor at IHME, said in the release.

“New, proven effective population-wide and motivational individual prevention strategies that could be applied to all people at risk of having a stroke, regardless of the level of risk, as recommended in the recent Lancet Neurology Commission on Stroke should be implemented across the globe urgently,” said Dr. Feigin.

Dr. Elkind said the AHA supports research on the effects of air quality on risk for vascular injury and stroke and has “long advocated for policies to mitigate the adverse health impacts of air pollutants, including reduction of vehicle emissions and renewable portfolio standards, taking into account racial, ethnic, and economic disparities.”

“AHA, and the healthcare sector more broadly, must take a leadership role in recommending policies to improve environmental air quality and in working with the private sector and industry to improve air quality,” Dr. Elkind said.

In an accompanying commentary, Ming Liu, MD, and Simiao Wu, MD, PhD, West China Hospital, Sichuan University, Chengdu, China, wrote that “pragmatic solutions to the enormous and increasing stroke burden include surveillance, prevention, acute care, and rehabilitation.”

“Surveillance strategies include establishing a national-level framework for regular monitoring of stroke burden, risk factors, and healthcare services via community-based surveys and health records,” they noted.

“Artificial intelligence and mobile technologies might not only facilitate the dissemination of evidence-based health services but also increase the number of data sources and encourage participation of multidisciplinary collaborators, potentially improving the validity and accuracy of future GBD estimates,” they added.

This study was funded by the Bill & Melinda Gates Foundation. Author disclosures are listed with the original article.

A version of this article first appeared on Medscape.com.

Air pollution, high temperatures, and metabolic risk factors are driving global increases in stroke, contributing to 12 million cases and more than 7 million deaths from stroke each year, new data from the Global Burden of Disease (GBD) study showed.

Between 1990 and 2021, the number of people who experienced a stroke increased to 11.9 million (up by 70% since 1990), while the number of stroke survivors rose to 93.8 million (up by 86%), and stroke-related deaths rose to 7.3 million (up by 44%), making stroke the third leading cause of death worldwide after ischemic heart disease and COVID-19, investigators found.

Stroke is highly preventable, the investigators noted, with 84% of the stroke burden in 2021 attributable to 23 modifiable risk factors, including air pollution, excess body weight, high blood pressure, smoking, and physical inactivity.

This means there are “tremendous opportunities to alter the trajectory of stroke risk for the next generation,” Catherine O. Johnson, MPH, PhD, co-author and lead research scientist at the Institute for Health Metrics and Evaluation (IHME), University of Washington, Seattle, said in a news release.

The study was published online in The Lancet Neurology.
 

Top Risk Factor for Subarachnoid Hemorrhage

Since 1990, the contribution of high temperatures to poor health and early death due to stroke has risen 72%, a trend likely to increase in the future — underscoring the impact of environmental factors on the growing stroke burden, the authors said.

“Given that ambient air pollution is reciprocally linked with ambient temperature and climate change, the importance of urgent climate actions and measures to reduce air pollution cannot be overestimated,” Dr. Johnson said.

Mitchell S.V. Elkind, MD, MS, chief clinical science officer for the American Heart Association, who wasn’t involved in the study, told this news organization that environmental factors such as air pollution, particulate matter from wildfires and other sources, and excessive heat are now recognized as major contributors to the risk for stroke. “This should not be surprising as we have long recognized the risks of stroke associated with toxins in cigarette smoke, which likely share mechanisms for vascular damage with pollutants,” Dr. Elkind said.

The data also reveal for the first time that ambient particulate matter air pollution is a top risk factor for subarachnoid hemorrhage, contributing to 14% of the death and disability caused by this serious stroke subtype, on a par with smoking.

Dr. Elkind noted that smoking is “a major risk factor for subarachnoid hemorrhage. It makes sense that particulate air pollution would therefore similarly be a risk factor for subarachnoid hemorrhage, which similarly damages blood vessels. Prior studies were likely too small or did not assess the role of air pollution in subarachnoid hemorrhage.”

The analysis also showed substantial increases between 1990 and 2021 in the global stroke burden linked to high body mass index (up by 88%), high blood sugar (up 32%), a diet high in sugar-sweetened drinks (up 23%), low physical activity (up 11%), high systolic blood pressure (up 7%), and a diet low in omega-6 polyunsaturated fatty acids (up 5%).

“And with increasing exposure to risk factors such as high blood sugar and diet high in sugar-sweetened drinks, there is a critical need for interventions focused on obesity and metabolic syndromes,” Dr. Johnson said.

“Identifying sustainable ways to work with communities to take action to prevent and control modifiable risk factors for stroke is essential to address this growing crisis,” she added.
 

Prevention Strategies Fall Short

The data also showed that stroke-related disability-adjusted life-years rose from around 121.4 million years of healthy life lost in 1990 to 160.5 million years in 2021, making stroke the fourth leading cause of health loss worldwide after COVID-19, ischemic heart disease, and neonatal disorders.

“The global growth of the number of people who develop stroke and died from or remain disabled by stroke is growing fast, strongly suggesting that currently used stroke prevention strategies are not sufficiently effective,” lead author Valery L. Feigin, MD, PhD, from Auckland University of Technology, Auckland, New Zealand, and affiliate professor at IHME, said in the release.

“New, proven effective population-wide and motivational individual prevention strategies that could be applied to all people at risk of having a stroke, regardless of the level of risk, as recommended in the recent Lancet Neurology Commission on Stroke should be implemented across the globe urgently,” said Dr. Feigin.

Dr. Elkind said the AHA supports research on the effects of air quality on risk for vascular injury and stroke and has “long advocated for policies to mitigate the adverse health impacts of air pollutants, including reduction of vehicle emissions and renewable portfolio standards, taking into account racial, ethnic, and economic disparities.”

“AHA, and the healthcare sector more broadly, must take a leadership role in recommending policies to improve environmental air quality and in working with the private sector and industry to improve air quality,” Dr. Elkind said.

In an accompanying commentary, Ming Liu, MD, and Simiao Wu, MD, PhD, West China Hospital, Sichuan University, Chengdu, China, wrote that “pragmatic solutions to the enormous and increasing stroke burden include surveillance, prevention, acute care, and rehabilitation.”

“Surveillance strategies include establishing a national-level framework for regular monitoring of stroke burden, risk factors, and healthcare services via community-based surveys and health records,” they noted.

“Artificial intelligence and mobile technologies might not only facilitate the dissemination of evidence-based health services but also increase the number of data sources and encourage participation of multidisciplinary collaborators, potentially improving the validity and accuracy of future GBD estimates,” they added.

This study was funded by the Bill & Melinda Gates Foundation. Author disclosures are listed with the original article.

A version of this article first appeared on Medscape.com.

Air pollution, high temperatures, and metabolic risk factors are driving global increases in stroke, contributing to 12 million cases and more than 7 million deaths from stroke each year, new data from the Global Burden of Disease (GBD) study showed.

Between 1990 and 2021, the number of people who experienced a stroke increased to 11.9 million (up by 70% since 1990), while the number of stroke survivors rose to 93.8 million (up by 86%), and stroke-related deaths rose to 7.3 million (up by 44%), making stroke the third leading cause of death worldwide after ischemic heart disease and COVID-19, investigators found.

Stroke is highly preventable, the investigators noted, with 84% of the stroke burden in 2021 attributable to 23 modifiable risk factors, including air pollution, excess body weight, high blood pressure, smoking, and physical inactivity.

This means there are “tremendous opportunities to alter the trajectory of stroke risk for the next generation,” Catherine O. Johnson, MPH, PhD, co-author and lead research scientist at the Institute for Health Metrics and Evaluation (IHME), University of Washington, Seattle, said in a news release.

The study was published online in The Lancet Neurology.
 

Top Risk Factor for Subarachnoid Hemorrhage

Since 1990, the contribution of high temperatures to poor health and early death due to stroke has risen 72%, a trend likely to increase in the future — underscoring the impact of environmental factors on the growing stroke burden, the authors said.

“Given that ambient air pollution is reciprocally linked with ambient temperature and climate change, the importance of urgent climate actions and measures to reduce air pollution cannot be overestimated,” Dr. Johnson said.

Mitchell S.V. Elkind, MD, MS, chief clinical science officer for the American Heart Association, who wasn’t involved in the study, told this news organization that environmental factors such as air pollution, particulate matter from wildfires and other sources, and excessive heat are now recognized as major contributors to the risk for stroke. “This should not be surprising as we have long recognized the risks of stroke associated with toxins in cigarette smoke, which likely share mechanisms for vascular damage with pollutants,” Dr. Elkind said.

The data also reveal for the first time that ambient particulate matter air pollution is a top risk factor for subarachnoid hemorrhage, contributing to 14% of the death and disability caused by this serious stroke subtype, on a par with smoking.

Dr. Elkind noted that smoking is “a major risk factor for subarachnoid hemorrhage. It makes sense that particulate air pollution would therefore similarly be a risk factor for subarachnoid hemorrhage, which similarly damages blood vessels. Prior studies were likely too small or did not assess the role of air pollution in subarachnoid hemorrhage.”

The analysis also showed substantial increases between 1990 and 2021 in the global stroke burden linked to high body mass index (up by 88%), high blood sugar (up 32%), a diet high in sugar-sweetened drinks (up 23%), low physical activity (up 11%), high systolic blood pressure (up 7%), and a diet low in omega-6 polyunsaturated fatty acids (up 5%).

“And with increasing exposure to risk factors such as high blood sugar and diet high in sugar-sweetened drinks, there is a critical need for interventions focused on obesity and metabolic syndromes,” Dr. Johnson said.

“Identifying sustainable ways to work with communities to take action to prevent and control modifiable risk factors for stroke is essential to address this growing crisis,” she added.
 

Prevention Strategies Fall Short

The data also showed that stroke-related disability-adjusted life-years rose from around 121.4 million years of healthy life lost in 1990 to 160.5 million years in 2021, making stroke the fourth leading cause of health loss worldwide after COVID-19, ischemic heart disease, and neonatal disorders.

“The global growth of the number of people who develop stroke and died from or remain disabled by stroke is growing fast, strongly suggesting that currently used stroke prevention strategies are not sufficiently effective,” lead author Valery L. Feigin, MD, PhD, from Auckland University of Technology, Auckland, New Zealand, and affiliate professor at IHME, said in the release.

“New, proven effective population-wide and motivational individual prevention strategies that could be applied to all people at risk of having a stroke, regardless of the level of risk, as recommended in the recent Lancet Neurology Commission on Stroke should be implemented across the globe urgently,” said Dr. Feigin.

Dr. Elkind said the AHA supports research on the effects of air quality on risk for vascular injury and stroke and has “long advocated for policies to mitigate the adverse health impacts of air pollutants, including reduction of vehicle emissions and renewable portfolio standards, taking into account racial, ethnic, and economic disparities.”

“AHA, and the healthcare sector more broadly, must take a leadership role in recommending policies to improve environmental air quality and in working with the private sector and industry to improve air quality,” Dr. Elkind said.

In an accompanying commentary, Ming Liu, MD, and Simiao Wu, MD, PhD, West China Hospital, Sichuan University, Chengdu, China, wrote that “pragmatic solutions to the enormous and increasing stroke burden include surveillance, prevention, acute care, and rehabilitation.”

“Surveillance strategies include establishing a national-level framework for regular monitoring of stroke burden, risk factors, and healthcare services via community-based surveys and health records,” they noted.

“Artificial intelligence and mobile technologies might not only facilitate the dissemination of evidence-based health services but also increase the number of data sources and encourage participation of multidisciplinary collaborators, potentially improving the validity and accuracy of future GBD estimates,” they added.

This study was funded by the Bill & Melinda Gates Foundation. Author disclosures are listed with the original article.

A version of this article first appeared on Medscape.com.