Nephrology

Plant-based diets have become increasingly popular over the last decade as the evidence supporting their health benefits becomes stronger. 

Research pooled from nearly 100 studies has indicated that people who adhere to a vegan diet (ie, completely devoid of animal products) or a vegetarian diet (ie, devoid of meat, but may include dairy and eggs) are able to ward off some chronic diseases, such as cardiovascular disease, optimize glycemic control, and decrease their risk for cancer compared with those who consume omnivorous diets. 

Vegan and vegetarian diets, or flexitarian diets — which are less reliant on animal protein than the standard US diet but do not completely exclude meat, fish, eggs, or dairy — may promote homeostasis and decrease inflammation by providing more fiber, antioxidants, and unsaturated fatty acids than the typical Western diet. 
 

Inflammation and Obesity

Adipose tissue is a major producer of pro-inflammatory cytokines like interleukin (IL)-6, whose presence then triggers a rush of acute-phase reactants such as C-reactive protein (CRP) by the liver. This process develops into chronic low-grade inflammation that can increase a person’s chances of developing diabetes, cardiovascular disease, kidney disease, metabolic syndrome, and related complications.

Adopting a plant-based diet can improve markers of chronic low-grade inflammation that can lead to chronic disease and worsen existent chronic disease. A meta-analysis of 29 studies encompassing nearly 2700 participants found that initiation of a plant-based diet showed significant improvement in CRP, IL-6, and soluble intercellular adhesion molecule 1. 

If we want to prevent these inflammatory disease states and their complications, the obvious response is to counsel patients to avoid excessive weight gain or to lose weight if obesity is their baseline. This can be tough for some patients, but it is nonetheless an important step in chronic disease prevention and management.
 

Plant-Based Diet for Type 2 Diabetes

According to a review of nine studies of patients living with type 2 diabetes who adhered to a plant-based diet, all but one found that this approach led to significantly lower A1c values than those seen in control groups. Six of the included studies reported that participants were able to decrease or discontinue medications for the management of diabetes. Researchers across all included studies also noted a decrease in total cholesterol, low-density lipoprotein cholesterol, and triglycerides, as well as increased weight loss in participants in each intervention group. 

Such improvements are probably the result of the increase in fiber intake that occurs with a plant-based diet. A high-fiber diet is known to promote improved glucose and lipid metabolism as well as weight loss. 

It is also worth noting that participants in the intervention groups also experienced improvements in depression and less chronic pain than did those in the control groups. 
 

Plant-Based Diet for Chronic Kidney Disease (CKD)

Although the use of a plant-based diet in the prevention of CKD is well documented, adopting such diets for the treatment of CKD may intimidate both patients and practitioners owing to the high potassium and phosphorus content of many fruits and vegetables.

However, research indicates that the bioavailability of both potassium and phosphorus is lower in plant-based, whole foods than in preservatives and the highly processed food items that incorporate them. This makes a plant-based diet more viable than previously thought. 

Diets rich in vegetables, whole grains, nuts, and legumes have been shown to decrease dietary acid load, both preventing and treating metabolic acidosis. Such diets have also been shown to decrease blood pressure and the risk for a decline in estimated glomerular filtration rate. This type of diet would also prioritize the unsaturated fatty acids and fiber-rich proteins such as avocados, beans, and nuts shown to improve dyslipidemia, which may occur alongside CKD.
 

Realistic Options for Patients on Medical Diets

There is one question that I always seem to get from when recommending a plant-based diet: “These patients already have so many restrictions. Why would you add more?” And my answer is also always the same: I don’t. 

I rarely, if ever, recommend completely cutting out any food item or food group. Instead, I ask the patient to increase their intake of plant-based foods and only limit highly processed foods and fatty meats. By shifting a patient’s focus to beans; nuts; and low-carbohydrate, high-fiber fruits and vegetables, I am often opening up a whole new world of possibilities. 

Instead of a sandwich with low-sodium turkey and cheese on white bread with a side of unsalted pretzels, I recommend a caprese salad with blueberries and almonds or a Southwest salad with black beans, corn, and avocado. I don’t encourage my patients to skip the foods that they love, but instead to only think about all the delicious plant-based options that will provide them with more than just calories.

Meat, dairy, seafood, and eggs can certainly be a part of a healthy diet, but what if our chronically ill patients, especially those with diabetes, had more options than just grilled chicken and green beans for every meal? What if we focus on decreasing dietary restrictions, incorporating a variety of nourishing foods, and educating our patients, instead of on portion control and moderation? 

This is how I choose to incorporate plant-based diets into my practice to treat and prevent these chronic inflammatory conditions and promote sustainable, realistic change in my clients’ health.

Brandy Winfree Root, a renal dietitian in private practice in Mary Esther, Florida, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Plant-based diets have become increasingly popular over the last decade as the evidence supporting their health benefits becomes stronger. 

Research pooled from nearly 100 studies has indicated that people who adhere to a vegan diet (ie, completely devoid of animal products) or a vegetarian diet (ie, devoid of meat, but may include dairy and eggs) are able to ward off some chronic diseases, such as cardiovascular disease, optimize glycemic control, and decrease their risk for cancer compared with those who consume omnivorous diets. 

Vegan and vegetarian diets, or flexitarian diets — which are less reliant on animal protein than the standard US diet but do not completely exclude meat, fish, eggs, or dairy — may promote homeostasis and decrease inflammation by providing more fiber, antioxidants, and unsaturated fatty acids than the typical Western diet. 
 

Inflammation and Obesity

Adipose tissue is a major producer of pro-inflammatory cytokines like interleukin (IL)-6, whose presence then triggers a rush of acute-phase reactants such as C-reactive protein (CRP) by the liver. This process develops into chronic low-grade inflammation that can increase a person’s chances of developing diabetes, cardiovascular disease, kidney disease, metabolic syndrome, and related complications.

Adopting a plant-based diet can improve markers of chronic low-grade inflammation that can lead to chronic disease and worsen existent chronic disease. A meta-analysis of 29 studies encompassing nearly 2700 participants found that initiation of a plant-based diet showed significant improvement in CRP, IL-6, and soluble intercellular adhesion molecule 1. 

If we want to prevent these inflammatory disease states and their complications, the obvious response is to counsel patients to avoid excessive weight gain or to lose weight if obesity is their baseline. This can be tough for some patients, but it is nonetheless an important step in chronic disease prevention and management.
 

Plant-Based Diet for Type 2 Diabetes

According to a review of nine studies of patients living with type 2 diabetes who adhered to a plant-based diet, all but one found that this approach led to significantly lower A1c values than those seen in control groups. Six of the included studies reported that participants were able to decrease or discontinue medications for the management of diabetes. Researchers across all included studies also noted a decrease in total cholesterol, low-density lipoprotein cholesterol, and triglycerides, as well as increased weight loss in participants in each intervention group. 

Such improvements are probably the result of the increase in fiber intake that occurs with a plant-based diet. A high-fiber diet is known to promote improved glucose and lipid metabolism as well as weight loss. 

It is also worth noting that participants in the intervention groups also experienced improvements in depression and less chronic pain than did those in the control groups. 
 

Plant-Based Diet for Chronic Kidney Disease (CKD)

Although the use of a plant-based diet in the prevention of CKD is well documented, adopting such diets for the treatment of CKD may intimidate both patients and practitioners owing to the high potassium and phosphorus content of many fruits and vegetables.

However, research indicates that the bioavailability of both potassium and phosphorus is lower in plant-based, whole foods than in preservatives and the highly processed food items that incorporate them. This makes a plant-based diet more viable than previously thought. 

Diets rich in vegetables, whole grains, nuts, and legumes have been shown to decrease dietary acid load, both preventing and treating metabolic acidosis. Such diets have also been shown to decrease blood pressure and the risk for a decline in estimated glomerular filtration rate. This type of diet would also prioritize the unsaturated fatty acids and fiber-rich proteins such as avocados, beans, and nuts shown to improve dyslipidemia, which may occur alongside CKD.
 

Realistic Options for Patients on Medical Diets

There is one question that I always seem to get from when recommending a plant-based diet: “These patients already have so many restrictions. Why would you add more?” And my answer is also always the same: I don’t. 

I rarely, if ever, recommend completely cutting out any food item or food group. Instead, I ask the patient to increase their intake of plant-based foods and only limit highly processed foods and fatty meats. By shifting a patient’s focus to beans; nuts; and low-carbohydrate, high-fiber fruits and vegetables, I am often opening up a whole new world of possibilities. 

Instead of a sandwich with low-sodium turkey and cheese on white bread with a side of unsalted pretzels, I recommend a caprese salad with blueberries and almonds or a Southwest salad with black beans, corn, and avocado. I don’t encourage my patients to skip the foods that they love, but instead to only think about all the delicious plant-based options that will provide them with more than just calories.

Meat, dairy, seafood, and eggs can certainly be a part of a healthy diet, but what if our chronically ill patients, especially those with diabetes, had more options than just grilled chicken and green beans for every meal? What if we focus on decreasing dietary restrictions, incorporating a variety of nourishing foods, and educating our patients, instead of on portion control and moderation? 

This is how I choose to incorporate plant-based diets into my practice to treat and prevent these chronic inflammatory conditions and promote sustainable, realistic change in my clients’ health.

Brandy Winfree Root, a renal dietitian in private practice in Mary Esther, Florida, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Plant-based diets have become increasingly popular over the last decade as the evidence supporting their health benefits becomes stronger. 

Research pooled from nearly 100 studies has indicated that people who adhere to a vegan diet (ie, completely devoid of animal products) or a vegetarian diet (ie, devoid of meat, but may include dairy and eggs) are able to ward off some chronic diseases, such as cardiovascular disease, optimize glycemic control, and decrease their risk for cancer compared with those who consume omnivorous diets. 

Vegan and vegetarian diets, or flexitarian diets — which are less reliant on animal protein than the standard US diet but do not completely exclude meat, fish, eggs, or dairy — may promote homeostasis and decrease inflammation by providing more fiber, antioxidants, and unsaturated fatty acids than the typical Western diet. 
 

Inflammation and Obesity

Adipose tissue is a major producer of pro-inflammatory cytokines like interleukin (IL)-6, whose presence then triggers a rush of acute-phase reactants such as C-reactive protein (CRP) by the liver. This process develops into chronic low-grade inflammation that can increase a person’s chances of developing diabetes, cardiovascular disease, kidney disease, metabolic syndrome, and related complications.

Adopting a plant-based diet can improve markers of chronic low-grade inflammation that can lead to chronic disease and worsen existent chronic disease. A meta-analysis of 29 studies encompassing nearly 2700 participants found that initiation of a plant-based diet showed significant improvement in CRP, IL-6, and soluble intercellular adhesion molecule 1. 

If we want to prevent these inflammatory disease states and their complications, the obvious response is to counsel patients to avoid excessive weight gain or to lose weight if obesity is their baseline. This can be tough for some patients, but it is nonetheless an important step in chronic disease prevention and management.
 

Plant-Based Diet for Type 2 Diabetes

According to a review of nine studies of patients living with type 2 diabetes who adhered to a plant-based diet, all but one found that this approach led to significantly lower A1c values than those seen in control groups. Six of the included studies reported that participants were able to decrease or discontinue medications for the management of diabetes. Researchers across all included studies also noted a decrease in total cholesterol, low-density lipoprotein cholesterol, and triglycerides, as well as increased weight loss in participants in each intervention group. 

Such improvements are probably the result of the increase in fiber intake that occurs with a plant-based diet. A high-fiber diet is known to promote improved glucose and lipid metabolism as well as weight loss. 

It is also worth noting that participants in the intervention groups also experienced improvements in depression and less chronic pain than did those in the control groups. 
 

Plant-Based Diet for Chronic Kidney Disease (CKD)

Although the use of a plant-based diet in the prevention of CKD is well documented, adopting such diets for the treatment of CKD may intimidate both patients and practitioners owing to the high potassium and phosphorus content of many fruits and vegetables.

However, research indicates that the bioavailability of both potassium and phosphorus is lower in plant-based, whole foods than in preservatives and the highly processed food items that incorporate them. This makes a plant-based diet more viable than previously thought. 

Diets rich in vegetables, whole grains, nuts, and legumes have been shown to decrease dietary acid load, both preventing and treating metabolic acidosis. Such diets have also been shown to decrease blood pressure and the risk for a decline in estimated glomerular filtration rate. This type of diet would also prioritize the unsaturated fatty acids and fiber-rich proteins such as avocados, beans, and nuts shown to improve dyslipidemia, which may occur alongside CKD.
 

Realistic Options for Patients on Medical Diets

There is one question that I always seem to get from when recommending a plant-based diet: “These patients already have so many restrictions. Why would you add more?” And my answer is also always the same: I don’t. 

I rarely, if ever, recommend completely cutting out any food item or food group. Instead, I ask the patient to increase their intake of plant-based foods and only limit highly processed foods and fatty meats. By shifting a patient’s focus to beans; nuts; and low-carbohydrate, high-fiber fruits and vegetables, I am often opening up a whole new world of possibilities. 

Instead of a sandwich with low-sodium turkey and cheese on white bread with a side of unsalted pretzels, I recommend a caprese salad with blueberries and almonds or a Southwest salad with black beans, corn, and avocado. I don’t encourage my patients to skip the foods that they love, but instead to only think about all the delicious plant-based options that will provide them with more than just calories.

Meat, dairy, seafood, and eggs can certainly be a part of a healthy diet, but what if our chronically ill patients, especially those with diabetes, had more options than just grilled chicken and green beans for every meal? What if we focus on decreasing dietary restrictions, incorporating a variety of nourishing foods, and educating our patients, instead of on portion control and moderation? 

This is how I choose to incorporate plant-based diets into my practice to treat and prevent these chronic inflammatory conditions and promote sustainable, realistic change in my clients’ health.

Brandy Winfree Root, a renal dietitian in private practice in Mary Esther, Florida, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

Only 1 in 15 urine dipstick tests showing proteinuria in the primary care setting are followed up with albuminuria quantification testing, according to investigators.

These findings expose a broad gap in screening for chronic kidney disease (CKD), which is especially concerning since newer kidney-protecting agents are more effective when prescribed earlier in the disease course, reported lead author Yunwen Xu, PhD, of Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, and colleagues.

“Evidence-based prescription of renin-angiotensin system inhibitors, glucagon-like peptide-1 receptor (GLP-1) agonists, sodium-glucose cotransporter 2 (SGLT2) inhibitors, and nonsteroidal mineralocorticoid receptor antagonists (nsMRAs) relies on the level of albuminuria,” the investigators wrote in Annals of Internal Medicine.

“Although urine albumin-creatinine ratio (ACR) is the most accurate method for quantifying albuminuria, dipstick urinalysis tests are inexpensive and are often used as an initial screening test, with guidelines recommending follow-up ACR testing if the protein dipstick test result is abnormal.”

Despite this guidance, real-world follow-up rates have been unknown, prompting the present study. Real-world data show a low follow-up rate. Dr. Xu and colleagues analyzed data from 1 million patients in 33 health systems who underwent urine dipstick testing in a primary care setting.

Across this population, 13% of patients had proteinuria, but only 6.7% underwent follow-up albuminuria quantification testing within the next year. ACR was the most common method (86%).

Likelihood of follow-up increased slightly with the level of proteinuria detected; however, absolute differences were marginal, with a 3+ result yielding a follow-up rate of just 8%, compared with 7.3% for a 2+ result and 6.3% for a 1+ result. When albuminuria quantification tests were conducted, 1+, 2+, and 3+ dipstick results were associated with albuminuria rates of 36.3%, 53.0%, and 64.9%, respectively.

Patients with diabetes had the highest follow-up rate, at 16.6%, vs 3.8% for those without diabetes.
 

Reasons for Low Follow-up Unclear

The dataset did not include information about reasons for ordering urinalyses, whether primary care providers knew about the abnormal dipstick tests, or awareness of guideline recommendations.

“I think they know it should be done,” said principal investigator Alexander R. Chang, MD, associate professor in the department of nephrology and population health sciences at Geisinger Health, Danville, Pennsylvania.

He suggested that real-time awareness issues, especially within electronic health record (EHR) systems, could explain the low follow-up rates. Blood test abnormalities are often flagged in red in EHRs, he said in an interview, but urine dipstick results typically remain in plain black and white.

“So, then it sort of requires that extra cognitive step to kind of look at that [result], and say, okay, that is pretty abnormal; I should do something about that,” he said.

Neil S. Skolnik, MD, a primary care physician at Jefferson Health, Abington, Pennsylvania, was surprised by the findings. “If you get a urinalysis and there’s protein, normally you follow up,” Dr. Skolnik said in an interview. “I have a feeling that there’s something we’re not seeing here about what’s going on. It is hard to imagine that in only 1 out of 15 times that proteinuria is identified, is there any follow-up. I really don’t have a good explanation.”

Renee Marie Betancourt, MD, associate professor and vice chair of diversity, equity, and inclusion in the Department of Family Medicine and Community Health at the University of Pennsylvania Perelman School of Medicine, Philadelphia, said it is hard to draw conclusions from the available data, but agreed that low visibility of results could be partially to blame.

“The chart doesn’t tell me [a urine dipstick result] is abnormal,” Dr. Betancourt said in an interview. “The chart just reports it, agnostic of normal or abnormal.”

Beyond issues with visibility, Dr. Betancourt described how primary care physicians are often so flooded with other concerns that a positive dipstick test can become a low priority, particularly among patients with CKD, who typically have other health issues.

“I oftentimes spend the majority of my visit on the patient’s concerns, and sometimes, beyond their concerns, I have concerns, and [a urine dipstick result] might not make it to the top of the list,” she said.
 

EHR-Based Interventions Might Help Improve Follow-up

Dr. Chang suggested that improved visibility of dipstick results could help, or possibly EHR-integrated clinical decision tools.

Dr. Betancourt and colleagues at Penn Medicine are actively working on such a solution. Their EHR-based intervention is aimed at identifying and managing patients with CKD. The present design, slated for pilot testing at one or two primary care clinics beginning in January 2025, depends upon estimated glomerular filtration rate (eGFR) to flag CKD patients, with ACR testing recommended yearly to predict disease progression.

Although urine dipstick findings are not currently a part of this software pathway, the findings from the present study might influence future strategy.

“I’m going to take this to our collaborators and ask about opportunities to ... encourage providers to be more active with dipsticks,” Dr. Betancourt said.
 

Newer Medications Are Effective, but Prescribing Challenges Remain 

Ideally, CKD screening improvements will unlock a greater goal: prescribing kidney-protecting medications to patients who need them — as soon as they need them.

Here might lie the real knowledge gap among experienced primary care physicians, Dr. Chang suggested. “In the past, there wasn’t quite as much that you could do about having proteinuria,” he said. “But now we have lots more medications ... it’s not just tracking that they have a bad prognostic factor. [Proteinuria is] actually something that we can act upon.”

Who exactly should be prescribing these kidney-protecting medications, however, remains contested, as agents like GLP-1 agonists and SGLT2 inhibitors yield benefits across specialties, including nephrology, cardiology, and endocrinology.

“Everyone’s going to have to work together,” Dr. Chang said. “You can’t really put it all on the [primary care physician] to quarterback everything.”

And, regardless of who throws the ball, a touchdown is not guaranteed.

Dr. Betancourt called out the high cost of these newer drugs and described how some of her patients, already facing multiple health inequities, are left without.

“I have patients who cannot fill these medications because the copay is too high,” she said. “Just last week I received a message from a patient who stopped taking his SGLT2 inhibitor because the cost was too high ... it was over $300 per month.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. The authors’ conflicts of interests are available in the original paper. Dr. Skolnik and Dr. Betancourt reported no conflicts of interest.

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

Only 1 in 15 urine dipstick tests showing proteinuria in the primary care setting are followed up with albuminuria quantification testing, according to investigators.

These findings expose a broad gap in screening for chronic kidney disease (CKD), which is especially concerning since newer kidney-protecting agents are more effective when prescribed earlier in the disease course, reported lead author Yunwen Xu, PhD, of Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, and colleagues.

“Evidence-based prescription of renin-angiotensin system inhibitors, glucagon-like peptide-1 receptor (GLP-1) agonists, sodium-glucose cotransporter 2 (SGLT2) inhibitors, and nonsteroidal mineralocorticoid receptor antagonists (nsMRAs) relies on the level of albuminuria,” the investigators wrote in Annals of Internal Medicine.

“Although urine albumin-creatinine ratio (ACR) is the most accurate method for quantifying albuminuria, dipstick urinalysis tests are inexpensive and are often used as an initial screening test, with guidelines recommending follow-up ACR testing if the protein dipstick test result is abnormal.”

Despite this guidance, real-world follow-up rates have been unknown, prompting the present study. Real-world data show a low follow-up rate. Dr. Xu and colleagues analyzed data from 1 million patients in 33 health systems who underwent urine dipstick testing in a primary care setting.

Across this population, 13% of patients had proteinuria, but only 6.7% underwent follow-up albuminuria quantification testing within the next year. ACR was the most common method (86%).

Likelihood of follow-up increased slightly with the level of proteinuria detected; however, absolute differences were marginal, with a 3+ result yielding a follow-up rate of just 8%, compared with 7.3% for a 2+ result and 6.3% for a 1+ result. When albuminuria quantification tests were conducted, 1+, 2+, and 3+ dipstick results were associated with albuminuria rates of 36.3%, 53.0%, and 64.9%, respectively.

Patients with diabetes had the highest follow-up rate, at 16.6%, vs 3.8% for those without diabetes.
 

Reasons for Low Follow-up Unclear

The dataset did not include information about reasons for ordering urinalyses, whether primary care providers knew about the abnormal dipstick tests, or awareness of guideline recommendations.

“I think they know it should be done,” said principal investigator Alexander R. Chang, MD, associate professor in the department of nephrology and population health sciences at Geisinger Health, Danville, Pennsylvania.

He suggested that real-time awareness issues, especially within electronic health record (EHR) systems, could explain the low follow-up rates. Blood test abnormalities are often flagged in red in EHRs, he said in an interview, but urine dipstick results typically remain in plain black and white.

“So, then it sort of requires that extra cognitive step to kind of look at that [result], and say, okay, that is pretty abnormal; I should do something about that,” he said.

Neil S. Skolnik, MD, a primary care physician at Jefferson Health, Abington, Pennsylvania, was surprised by the findings. “If you get a urinalysis and there’s protein, normally you follow up,” Dr. Skolnik said in an interview. “I have a feeling that there’s something we’re not seeing here about what’s going on. It is hard to imagine that in only 1 out of 15 times that proteinuria is identified, is there any follow-up. I really don’t have a good explanation.”

Renee Marie Betancourt, MD, associate professor and vice chair of diversity, equity, and inclusion in the Department of Family Medicine and Community Health at the University of Pennsylvania Perelman School of Medicine, Philadelphia, said it is hard to draw conclusions from the available data, but agreed that low visibility of results could be partially to blame.

“The chart doesn’t tell me [a urine dipstick result] is abnormal,” Dr. Betancourt said in an interview. “The chart just reports it, agnostic of normal or abnormal.”

Beyond issues with visibility, Dr. Betancourt described how primary care physicians are often so flooded with other concerns that a positive dipstick test can become a low priority, particularly among patients with CKD, who typically have other health issues.

“I oftentimes spend the majority of my visit on the patient’s concerns, and sometimes, beyond their concerns, I have concerns, and [a urine dipstick result] might not make it to the top of the list,” she said.
 

EHR-Based Interventions Might Help Improve Follow-up

Dr. Chang suggested that improved visibility of dipstick results could help, or possibly EHR-integrated clinical decision tools.

Dr. Betancourt and colleagues at Penn Medicine are actively working on such a solution. Their EHR-based intervention is aimed at identifying and managing patients with CKD. The present design, slated for pilot testing at one or two primary care clinics beginning in January 2025, depends upon estimated glomerular filtration rate (eGFR) to flag CKD patients, with ACR testing recommended yearly to predict disease progression.

Although urine dipstick findings are not currently a part of this software pathway, the findings from the present study might influence future strategy.

“I’m going to take this to our collaborators and ask about opportunities to ... encourage providers to be more active with dipsticks,” Dr. Betancourt said.
 

Newer Medications Are Effective, but Prescribing Challenges Remain 

Ideally, CKD screening improvements will unlock a greater goal: prescribing kidney-protecting medications to patients who need them — as soon as they need them.

Here might lie the real knowledge gap among experienced primary care physicians, Dr. Chang suggested. “In the past, there wasn’t quite as much that you could do about having proteinuria,” he said. “But now we have lots more medications ... it’s not just tracking that they have a bad prognostic factor. [Proteinuria is] actually something that we can act upon.”

Who exactly should be prescribing these kidney-protecting medications, however, remains contested, as agents like GLP-1 agonists and SGLT2 inhibitors yield benefits across specialties, including nephrology, cardiology, and endocrinology.

“Everyone’s going to have to work together,” Dr. Chang said. “You can’t really put it all on the [primary care physician] to quarterback everything.”

And, regardless of who throws the ball, a touchdown is not guaranteed.

Dr. Betancourt called out the high cost of these newer drugs and described how some of her patients, already facing multiple health inequities, are left without.

“I have patients who cannot fill these medications because the copay is too high,” she said. “Just last week I received a message from a patient who stopped taking his SGLT2 inhibitor because the cost was too high ... it was over $300 per month.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. The authors’ conflicts of interests are available in the original paper. Dr. Skolnik and Dr. Betancourt reported no conflicts of interest.

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

Only 1 in 15 urine dipstick tests showing proteinuria in the primary care setting are followed up with albuminuria quantification testing, according to investigators.

These findings expose a broad gap in screening for chronic kidney disease (CKD), which is especially concerning since newer kidney-protecting agents are more effective when prescribed earlier in the disease course, reported lead author Yunwen Xu, PhD, of Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, and colleagues.

“Evidence-based prescription of renin-angiotensin system inhibitors, glucagon-like peptide-1 receptor (GLP-1) agonists, sodium-glucose cotransporter 2 (SGLT2) inhibitors, and nonsteroidal mineralocorticoid receptor antagonists (nsMRAs) relies on the level of albuminuria,” the investigators wrote in Annals of Internal Medicine.

“Although urine albumin-creatinine ratio (ACR) is the most accurate method for quantifying albuminuria, dipstick urinalysis tests are inexpensive and are often used as an initial screening test, with guidelines recommending follow-up ACR testing if the protein dipstick test result is abnormal.”

Despite this guidance, real-world follow-up rates have been unknown, prompting the present study. Real-world data show a low follow-up rate. Dr. Xu and colleagues analyzed data from 1 million patients in 33 health systems who underwent urine dipstick testing in a primary care setting.

Across this population, 13% of patients had proteinuria, but only 6.7% underwent follow-up albuminuria quantification testing within the next year. ACR was the most common method (86%).

Likelihood of follow-up increased slightly with the level of proteinuria detected; however, absolute differences were marginal, with a 3+ result yielding a follow-up rate of just 8%, compared with 7.3% for a 2+ result and 6.3% for a 1+ result. When albuminuria quantification tests were conducted, 1+, 2+, and 3+ dipstick results were associated with albuminuria rates of 36.3%, 53.0%, and 64.9%, respectively.

Patients with diabetes had the highest follow-up rate, at 16.6%, vs 3.8% for those without diabetes.
 

Reasons for Low Follow-up Unclear

The dataset did not include information about reasons for ordering urinalyses, whether primary care providers knew about the abnormal dipstick tests, or awareness of guideline recommendations.

“I think they know it should be done,” said principal investigator Alexander R. Chang, MD, associate professor in the department of nephrology and population health sciences at Geisinger Health, Danville, Pennsylvania.

He suggested that real-time awareness issues, especially within electronic health record (EHR) systems, could explain the low follow-up rates. Blood test abnormalities are often flagged in red in EHRs, he said in an interview, but urine dipstick results typically remain in plain black and white.

“So, then it sort of requires that extra cognitive step to kind of look at that [result], and say, okay, that is pretty abnormal; I should do something about that,” he said.

Neil S. Skolnik, MD, a primary care physician at Jefferson Health, Abington, Pennsylvania, was surprised by the findings. “If you get a urinalysis and there’s protein, normally you follow up,” Dr. Skolnik said in an interview. “I have a feeling that there’s something we’re not seeing here about what’s going on. It is hard to imagine that in only 1 out of 15 times that proteinuria is identified, is there any follow-up. I really don’t have a good explanation.”

Renee Marie Betancourt, MD, associate professor and vice chair of diversity, equity, and inclusion in the Department of Family Medicine and Community Health at the University of Pennsylvania Perelman School of Medicine, Philadelphia, said it is hard to draw conclusions from the available data, but agreed that low visibility of results could be partially to blame.

“The chart doesn’t tell me [a urine dipstick result] is abnormal,” Dr. Betancourt said in an interview. “The chart just reports it, agnostic of normal or abnormal.”

Beyond issues with visibility, Dr. Betancourt described how primary care physicians are often so flooded with other concerns that a positive dipstick test can become a low priority, particularly among patients with CKD, who typically have other health issues.

“I oftentimes spend the majority of my visit on the patient’s concerns, and sometimes, beyond their concerns, I have concerns, and [a urine dipstick result] might not make it to the top of the list,” she said.
 

EHR-Based Interventions Might Help Improve Follow-up

Dr. Chang suggested that improved visibility of dipstick results could help, or possibly EHR-integrated clinical decision tools.

Dr. Betancourt and colleagues at Penn Medicine are actively working on such a solution. Their EHR-based intervention is aimed at identifying and managing patients with CKD. The present design, slated for pilot testing at one or two primary care clinics beginning in January 2025, depends upon estimated glomerular filtration rate (eGFR) to flag CKD patients, with ACR testing recommended yearly to predict disease progression.

Although urine dipstick findings are not currently a part of this software pathway, the findings from the present study might influence future strategy.

“I’m going to take this to our collaborators and ask about opportunities to ... encourage providers to be more active with dipsticks,” Dr. Betancourt said.
 

Newer Medications Are Effective, but Prescribing Challenges Remain 

Ideally, CKD screening improvements will unlock a greater goal: prescribing kidney-protecting medications to patients who need them — as soon as they need them.

Here might lie the real knowledge gap among experienced primary care physicians, Dr. Chang suggested. “In the past, there wasn’t quite as much that you could do about having proteinuria,” he said. “But now we have lots more medications ... it’s not just tracking that they have a bad prognostic factor. [Proteinuria is] actually something that we can act upon.”

Who exactly should be prescribing these kidney-protecting medications, however, remains contested, as agents like GLP-1 agonists and SGLT2 inhibitors yield benefits across specialties, including nephrology, cardiology, and endocrinology.

“Everyone’s going to have to work together,” Dr. Chang said. “You can’t really put it all on the [primary care physician] to quarterback everything.”

And, regardless of who throws the ball, a touchdown is not guaranteed.

Dr. Betancourt called out the high cost of these newer drugs and described how some of her patients, already facing multiple health inequities, are left without.

“I have patients who cannot fill these medications because the copay is too high,” she said. “Just last week I received a message from a patient who stopped taking his SGLT2 inhibitor because the cost was too high ... it was over $300 per month.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. The authors’ conflicts of interests are available in the original paper. Dr. Skolnik and Dr. Betancourt reported no conflicts of interest.

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

Further data from the FLOW study were presented during the 2024 congress of the European Association for the Study of Diabetes (EASD) in Madrid. The FLOW study was originally presented in May at the European Renal Association’s 2024 congress in Stockholm. It was the first dedicated kidney outcomes trial to examine a GLP-1 receptor agonist. 

The FLOW study demonstrated significant kidney, cardiovascular, and mortality benefits with semaglutide 1 mg once weekly in patients with type 2 diabetes and chronic kidney disease (CKD). This study has elevated semaglutide to a new pillar of care for the management of diabetic kidney disease (DKD) alongside RAAS inhibitors, SGLT2 inhibitors, and finerenone. 

At first, whether the benefits of semaglutide were independent of baseline SGLT2 inhibitor use was uncertain. The data presented at the EASD congress, however, appeared to confirm the additive benefits of semaglutide, when combined with SGLT2 inhibitor use, in patients with DKD. The authors did acknowledge that study power was limited, given the low use of SGLT2 inhibitors at trial recruitment (no licensed SGLT2 inhibitor was available for CKD at that point), so small, clinically relevant interactions may not have been detected.

So, what are the implications of the FLOW study for primary care?

DKD is a common clinical challenge in primary care; a national diabetes audit in the United Kingdom suggested that over 40% of patients with type 2 diabetes had kidney disease. Moreover, DKD is the most common cause of kidney failure in adults starting renal replacement therapy in the United Kingdom.

Residual renal risk in patients with DKD persists despite optimal use of guideline-directed medical therapy (GDMT) with RAAS inhibitors, SGLT2 inhibitors, and finerenone, as demonstrated in the many landmark kidney outcomes trials over the past 25 years.

So, a new pillar of GDMT is welcome, but I am worried that this widened choice of therapies may worsen therapeutic inertia; baseline use of the newer DKD therapies (specifically SGLT2 inhibitors and finerenone) remains low. 

In addition, during the EASD FLOW session, Katherine Tuttle, MD, executive director for research at Providence Inland Northwest Health Services in Spokane, Washington, presented data from the US CURE-CKD registry study showing that baseline ACE inhibitor/ARB use of about 70% dropped to 50% after just 90 days. Baseline use of SGLT2 inhibitors was only about 6% and dropped to 5% after 90 days.

I suspect that much of this reduction in prescribing of ACE inhibitors/ARBs will have been in response to an acute dip in estimated glomerular filtration rate (eGFR) or hyperkalemia, which has been a perennial challenge with RAAS inhibitor use in primary care. Ongoing education in primary care is required to manage hyperkalemia and reductions in eGFR after RAAS inhibitor initiation to prevent premature cessation of these foundational therapies. 

On a positive note, there was no acute dip in eGFR after prescribing semaglutide in DKD. This observation will be reassuring for primary care and hopefully prevent unnecessary cessation of therapy.

Also reassuring was the lack of difference in diabetic retinopathy adverse events between the semaglutide and placebo groups. These events raised concerns about semaglutide following the SUSTAIN-6 CVOT study and have affected attitudes in primary care. But the rapidity and magnitude of improvement in glycemic control with semaglutide was believed to be the underlying issue, rather than semaglutide itself. A similar phenomenon has been observed with insulin. The ongoing FOCUS study is exploring the long-term effects of semaglutide on diabetic retinopathy in patients with type 2 diabetes. This study will hopefully provide a definite answer to this issue.

Another useful message from the FLOW study for primary care is the utility of semaglutide for glucose-lowering in the context of CKD. A1c was 0.81% lower in the semaglutide group compared with the placebo group in participants with eGFRs as low as 25 mL/min/1.73 m². It is well established that SGLT2 inhibitors have negligible glucose-lowering effects once eGFR drops below 45 mL/min/1.73 m². Indeed, my usual practice in CKD, if additional glucose-lowering is required once renal protection has been established with an SGLT2 inhibitor, was to add a GLP-1 receptor agonist. It is reassuring to have my clinical practice ratified by the FLOW study.

Semaglutide also helpfully provides an alternative therapeutic option for patients who do not tolerate SGLT2 inhibitors because of, for example, recurrent mycotic genital infections or polyuria, or for those in whom SGLT2 inhibitors are contraindicated, such as patients who have experienced an unprovoked episode of diabetic ketoacidosis. Many of these patients still require cardiovascular and kidney protection, so the FLOW study gives me a viable evidence-based alternative.

As a class, semaglutide and GLP-1 receptor agonists are, of course, not without side effects. Gastrointestinal side effects are the most common, and this finding was echoed in the FLOW study. Gastrointestinal disorders led to permanent treatment discontinuation in 4.5% of the semaglutide group compared with 1.1% of the placebo group. The overall safety profile of semaglutide was favorable, however. 

Gastrointestinal side effects can be particularly concerning in the context of CKD because of the possibility of clinical dehydration and acute kidney injury with persistent vomiting or diarrhea. Patient education is particularly important when using GLP-1 receptor agonists in this group of individuals. Reassuringly, there was no imbalance in dehydration and acute kidney injury between trial arms in the FLOW study. 

Notably, past studies have suggested that patients with CKD are more likely to experience gastrointestinal side effects with GLP-1 receptor agonists; in these patients, the usual mantra of GLP-1 receptor agonist prescribing is particularly important: Start low, go slow.

Finally, medication adherence is a challenge with multiple pillars of GDMT: These evidence-based disease-modifying therapies work only if our patients take them regularly. My senior partner had a lovely turn of phrase when reviewing patients with multiple long-term conditions; he would always start the consultation by asking individuals which medications they were not taking regularly. 

Overall, the FLOW study confirms semaglutide’s position as a new therapeutic pillar for DKD. This treatment will help address the residual renal risk for patients with DKD despite optimal use of GDMT. However, education and support will be required in primary care to prevent worsening therapeutic inertia.
 

Kevin Fernando, general practitioner partner, North Berwick Health Centre, North Berwick, UK, has disclosed the following relevant financial relationships: Received speaker fees from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Dexcom; Daiichi Sankyo; Lilly; Menarini; Novartis; Novo Nordisk; Roche Diagnostics; Embecta; Roche Diabetes Care. Received honoraria for participation in advisory boards from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Lilly; Menarini; Novartis; Roche Diabetes Care; Roche Diagnostics; Sanofi. Received funding for conference registration and subsistence from: Menarini; Daiichi Sankyo.

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

Further data from the FLOW study were presented during the 2024 congress of the European Association for the Study of Diabetes (EASD) in Madrid. The FLOW study was originally presented in May at the European Renal Association’s 2024 congress in Stockholm. It was the first dedicated kidney outcomes trial to examine a GLP-1 receptor agonist. 

The FLOW study demonstrated significant kidney, cardiovascular, and mortality benefits with semaglutide 1 mg once weekly in patients with type 2 diabetes and chronic kidney disease (CKD). This study has elevated semaglutide to a new pillar of care for the management of diabetic kidney disease (DKD) alongside RAAS inhibitors, SGLT2 inhibitors, and finerenone. 

At first, whether the benefits of semaglutide were independent of baseline SGLT2 inhibitor use was uncertain. The data presented at the EASD congress, however, appeared to confirm the additive benefits of semaglutide, when combined with SGLT2 inhibitor use, in patients with DKD. The authors did acknowledge that study power was limited, given the low use of SGLT2 inhibitors at trial recruitment (no licensed SGLT2 inhibitor was available for CKD at that point), so small, clinically relevant interactions may not have been detected.

So, what are the implications of the FLOW study for primary care?

DKD is a common clinical challenge in primary care; a national diabetes audit in the United Kingdom suggested that over 40% of patients with type 2 diabetes had kidney disease. Moreover, DKD is the most common cause of kidney failure in adults starting renal replacement therapy in the United Kingdom.

Residual renal risk in patients with DKD persists despite optimal use of guideline-directed medical therapy (GDMT) with RAAS inhibitors, SGLT2 inhibitors, and finerenone, as demonstrated in the many landmark kidney outcomes trials over the past 25 years.

So, a new pillar of GDMT is welcome, but I am worried that this widened choice of therapies may worsen therapeutic inertia; baseline use of the newer DKD therapies (specifically SGLT2 inhibitors and finerenone) remains low. 

In addition, during the EASD FLOW session, Katherine Tuttle, MD, executive director for research at Providence Inland Northwest Health Services in Spokane, Washington, presented data from the US CURE-CKD registry study showing that baseline ACE inhibitor/ARB use of about 70% dropped to 50% after just 90 days. Baseline use of SGLT2 inhibitors was only about 6% and dropped to 5% after 90 days.

I suspect that much of this reduction in prescribing of ACE inhibitors/ARBs will have been in response to an acute dip in estimated glomerular filtration rate (eGFR) or hyperkalemia, which has been a perennial challenge with RAAS inhibitor use in primary care. Ongoing education in primary care is required to manage hyperkalemia and reductions in eGFR after RAAS inhibitor initiation to prevent premature cessation of these foundational therapies. 

On a positive note, there was no acute dip in eGFR after prescribing semaglutide in DKD. This observation will be reassuring for primary care and hopefully prevent unnecessary cessation of therapy.

Also reassuring was the lack of difference in diabetic retinopathy adverse events between the semaglutide and placebo groups. These events raised concerns about semaglutide following the SUSTAIN-6 CVOT study and have affected attitudes in primary care. But the rapidity and magnitude of improvement in glycemic control with semaglutide was believed to be the underlying issue, rather than semaglutide itself. A similar phenomenon has been observed with insulin. The ongoing FOCUS study is exploring the long-term effects of semaglutide on diabetic retinopathy in patients with type 2 diabetes. This study will hopefully provide a definite answer to this issue.

Another useful message from the FLOW study for primary care is the utility of semaglutide for glucose-lowering in the context of CKD. A1c was 0.81% lower in the semaglutide group compared with the placebo group in participants with eGFRs as low as 25 mL/min/1.73 m². It is well established that SGLT2 inhibitors have negligible glucose-lowering effects once eGFR drops below 45 mL/min/1.73 m². Indeed, my usual practice in CKD, if additional glucose-lowering is required once renal protection has been established with an SGLT2 inhibitor, was to add a GLP-1 receptor agonist. It is reassuring to have my clinical practice ratified by the FLOW study.

Semaglutide also helpfully provides an alternative therapeutic option for patients who do not tolerate SGLT2 inhibitors because of, for example, recurrent mycotic genital infections or polyuria, or for those in whom SGLT2 inhibitors are contraindicated, such as patients who have experienced an unprovoked episode of diabetic ketoacidosis. Many of these patients still require cardiovascular and kidney protection, so the FLOW study gives me a viable evidence-based alternative.

As a class, semaglutide and GLP-1 receptor agonists are, of course, not without side effects. Gastrointestinal side effects are the most common, and this finding was echoed in the FLOW study. Gastrointestinal disorders led to permanent treatment discontinuation in 4.5% of the semaglutide group compared with 1.1% of the placebo group. The overall safety profile of semaglutide was favorable, however. 

Gastrointestinal side effects can be particularly concerning in the context of CKD because of the possibility of clinical dehydration and acute kidney injury with persistent vomiting or diarrhea. Patient education is particularly important when using GLP-1 receptor agonists in this group of individuals. Reassuringly, there was no imbalance in dehydration and acute kidney injury between trial arms in the FLOW study. 

Notably, past studies have suggested that patients with CKD are more likely to experience gastrointestinal side effects with GLP-1 receptor agonists; in these patients, the usual mantra of GLP-1 receptor agonist prescribing is particularly important: Start low, go slow.

Finally, medication adherence is a challenge with multiple pillars of GDMT: These evidence-based disease-modifying therapies work only if our patients take them regularly. My senior partner had a lovely turn of phrase when reviewing patients with multiple long-term conditions; he would always start the consultation by asking individuals which medications they were not taking regularly. 

Overall, the FLOW study confirms semaglutide’s position as a new therapeutic pillar for DKD. This treatment will help address the residual renal risk for patients with DKD despite optimal use of GDMT. However, education and support will be required in primary care to prevent worsening therapeutic inertia.
 

Kevin Fernando, general practitioner partner, North Berwick Health Centre, North Berwick, UK, has disclosed the following relevant financial relationships: Received speaker fees from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Dexcom; Daiichi Sankyo; Lilly; Menarini; Novartis; Novo Nordisk; Roche Diagnostics; Embecta; Roche Diabetes Care. Received honoraria for participation in advisory boards from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Lilly; Menarini; Novartis; Roche Diabetes Care; Roche Diagnostics; Sanofi. Received funding for conference registration and subsistence from: Menarini; Daiichi Sankyo.

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

Further data from the FLOW study were presented during the 2024 congress of the European Association for the Study of Diabetes (EASD) in Madrid. The FLOW study was originally presented in May at the European Renal Association’s 2024 congress in Stockholm. It was the first dedicated kidney outcomes trial to examine a GLP-1 receptor agonist. 

The FLOW study demonstrated significant kidney, cardiovascular, and mortality benefits with semaglutide 1 mg once weekly in patients with type 2 diabetes and chronic kidney disease (CKD). This study has elevated semaglutide to a new pillar of care for the management of diabetic kidney disease (DKD) alongside RAAS inhibitors, SGLT2 inhibitors, and finerenone. 

At first, whether the benefits of semaglutide were independent of baseline SGLT2 inhibitor use was uncertain. The data presented at the EASD congress, however, appeared to confirm the additive benefits of semaglutide, when combined with SGLT2 inhibitor use, in patients with DKD. The authors did acknowledge that study power was limited, given the low use of SGLT2 inhibitors at trial recruitment (no licensed SGLT2 inhibitor was available for CKD at that point), so small, clinically relevant interactions may not have been detected.

So, what are the implications of the FLOW study for primary care?

DKD is a common clinical challenge in primary care; a national diabetes audit in the United Kingdom suggested that over 40% of patients with type 2 diabetes had kidney disease. Moreover, DKD is the most common cause of kidney failure in adults starting renal replacement therapy in the United Kingdom.

Residual renal risk in patients with DKD persists despite optimal use of guideline-directed medical therapy (GDMT) with RAAS inhibitors, SGLT2 inhibitors, and finerenone, as demonstrated in the many landmark kidney outcomes trials over the past 25 years.

So, a new pillar of GDMT is welcome, but I am worried that this widened choice of therapies may worsen therapeutic inertia; baseline use of the newer DKD therapies (specifically SGLT2 inhibitors and finerenone) remains low. 

In addition, during the EASD FLOW session, Katherine Tuttle, MD, executive director for research at Providence Inland Northwest Health Services in Spokane, Washington, presented data from the US CURE-CKD registry study showing that baseline ACE inhibitor/ARB use of about 70% dropped to 50% after just 90 days. Baseline use of SGLT2 inhibitors was only about 6% and dropped to 5% after 90 days.

I suspect that much of this reduction in prescribing of ACE inhibitors/ARBs will have been in response to an acute dip in estimated glomerular filtration rate (eGFR) or hyperkalemia, which has been a perennial challenge with RAAS inhibitor use in primary care. Ongoing education in primary care is required to manage hyperkalemia and reductions in eGFR after RAAS inhibitor initiation to prevent premature cessation of these foundational therapies. 

On a positive note, there was no acute dip in eGFR after prescribing semaglutide in DKD. This observation will be reassuring for primary care and hopefully prevent unnecessary cessation of therapy.

Also reassuring was the lack of difference in diabetic retinopathy adverse events between the semaglutide and placebo groups. These events raised concerns about semaglutide following the SUSTAIN-6 CVOT study and have affected attitudes in primary care. But the rapidity and magnitude of improvement in glycemic control with semaglutide was believed to be the underlying issue, rather than semaglutide itself. A similar phenomenon has been observed with insulin. The ongoing FOCUS study is exploring the long-term effects of semaglutide on diabetic retinopathy in patients with type 2 diabetes. This study will hopefully provide a definite answer to this issue.

Another useful message from the FLOW study for primary care is the utility of semaglutide for glucose-lowering in the context of CKD. A1c was 0.81% lower in the semaglutide group compared with the placebo group in participants with eGFRs as low as 25 mL/min/1.73 m². It is well established that SGLT2 inhibitors have negligible glucose-lowering effects once eGFR drops below 45 mL/min/1.73 m². Indeed, my usual practice in CKD, if additional glucose-lowering is required once renal protection has been established with an SGLT2 inhibitor, was to add a GLP-1 receptor agonist. It is reassuring to have my clinical practice ratified by the FLOW study.

Semaglutide also helpfully provides an alternative therapeutic option for patients who do not tolerate SGLT2 inhibitors because of, for example, recurrent mycotic genital infections or polyuria, or for those in whom SGLT2 inhibitors are contraindicated, such as patients who have experienced an unprovoked episode of diabetic ketoacidosis. Many of these patients still require cardiovascular and kidney protection, so the FLOW study gives me a viable evidence-based alternative.

As a class, semaglutide and GLP-1 receptor agonists are, of course, not without side effects. Gastrointestinal side effects are the most common, and this finding was echoed in the FLOW study. Gastrointestinal disorders led to permanent treatment discontinuation in 4.5% of the semaglutide group compared with 1.1% of the placebo group. The overall safety profile of semaglutide was favorable, however. 

Gastrointestinal side effects can be particularly concerning in the context of CKD because of the possibility of clinical dehydration and acute kidney injury with persistent vomiting or diarrhea. Patient education is particularly important when using GLP-1 receptor agonists in this group of individuals. Reassuringly, there was no imbalance in dehydration and acute kidney injury between trial arms in the FLOW study. 

Notably, past studies have suggested that patients with CKD are more likely to experience gastrointestinal side effects with GLP-1 receptor agonists; in these patients, the usual mantra of GLP-1 receptor agonist prescribing is particularly important: Start low, go slow.

Finally, medication adherence is a challenge with multiple pillars of GDMT: These evidence-based disease-modifying therapies work only if our patients take them regularly. My senior partner had a lovely turn of phrase when reviewing patients with multiple long-term conditions; he would always start the consultation by asking individuals which medications they were not taking regularly. 

Overall, the FLOW study confirms semaglutide’s position as a new therapeutic pillar for DKD. This treatment will help address the residual renal risk for patients with DKD despite optimal use of GDMT. However, education and support will be required in primary care to prevent worsening therapeutic inertia.
 

Kevin Fernando, general practitioner partner, North Berwick Health Centre, North Berwick, UK, has disclosed the following relevant financial relationships: Received speaker fees from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Dexcom; Daiichi Sankyo; Lilly; Menarini; Novartis; Novo Nordisk; Roche Diagnostics; Embecta; Roche Diabetes Care. Received honoraria for participation in advisory boards from: Amarin; Amgen; AstraZeneca; Bayer; Boehringer Ingelheim; Lilly; Menarini; Novartis; Roche Diabetes Care; Roche Diagnostics; Sanofi. Received funding for conference registration and subsistence from: Menarini; Daiichi Sankyo.

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

TOPLINE:

Short-term mortality, hospitalizations, and cardiovascular disease (CVD) events are not significantly different between patients diagnosed with chronic kidney disease (CKD) during routine medical care and those through screening, in a study that found older age, being male, and having a diagnosis of heart failure are associated with an increased risk for mortality in patients with CKD.

METHODOLOGY:

• Researchers conducted a prospective cohort study involving 892 primary care patients aged 60 years or older with CKD from the Oxford Renal Cohort Study in England.
• Participants were categorized into those with existing CKD (n = 257; median age, 75 years), screen-detected CKD (n = 185; median age, roughly 73 years), or temporary reduction in kidney function (n = 450; median age, roughly 73 years).
• The primary outcome was a composite of all-cause mortality, hospitalization, CVD, or end-stage kidney disease.
• The secondary outcomes were the individual components of the composite primary outcome and factors associated with mortality in those with CKD.

TAKEAWAY:

• The composite outcomes were not significantly different between patients with preexisting CKD and kidney disease identified during screening (adjusted hazard ratio [aHR], 0.94; 95% CI, 0.67-1.33).
• Risks for death, hospitalization, CVD, or end-stage kidney disease were not significantly different between the two groups.
• Older age (aHR per year, 1.10; 95% CI, 1.06-1.15), male sex (aHR, 2.31; 95% CI, 1.26-4.24), and heart failure (aHR, 5.18; 95% CI, 2.45-10.97) were associated with higher risks for death.
• No cases of end-stage kidney disease were reported during the study period.

IN PRACTICE:

“Our findings show that the risk of short-term mortality, hospitalization, and CVD is comparable in people diagnosed through screening to those diagnosed routinely in primary care. This suggests that screening older people for CKD may be of value to increase detection and enable disease-modifying treatment to be initiated at an earlier stage,” the study authors wrote.

SOURCE:

The study was led by Anna K. Forbes, MBChB, and José M. Ordóñez-Mena, PhD, of the Nuffield Department of Primary Care Health Sciences at the University of Oxford, England. It was published online in BJGP Open.

LIMITATIONS:

The study had a relatively short follow-up period and a cohort primarily consisting of individuals with early-stage CKD, which may have limited the identification of end-stage cases of the condition. The study population predominantly consisted of White individuals, affecting the generalizability of the results to more diverse populations. Misclassification bias may have occurred due to changes in the kidney function over time.

DISCLOSURES:

The data linkage provided by NHS Digital was supported by funding from the NIHR School of Primary Care Research. Some authors were partly supported by the NIHR Oxford Biomedical Research Centre and NIHR Oxford Thames Valley Applied Research Collaborative. One author reported receiving financial support for attending a conference, while another received consulting fees from various pharmaceutical companies. Another author reported receiving a grant from the Wellcome Trust and payment while working as a presenter for NB Medical and is an unpaid trustee of some charities.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Short-term mortality, hospitalizations, and cardiovascular disease (CVD) events are not significantly different between patients diagnosed with chronic kidney disease (CKD) during routine medical care and those through screening, in a study that found older age, being male, and having a diagnosis of heart failure are associated with an increased risk for mortality in patients with CKD.

METHODOLOGY:

• Researchers conducted a prospective cohort study involving 892 primary care patients aged 60 years or older with CKD from the Oxford Renal Cohort Study in England.
• Participants were categorized into those with existing CKD (n = 257; median age, 75 years), screen-detected CKD (n = 185; median age, roughly 73 years), or temporary reduction in kidney function (n = 450; median age, roughly 73 years).
• The primary outcome was a composite of all-cause mortality, hospitalization, CVD, or end-stage kidney disease.
• The secondary outcomes were the individual components of the composite primary outcome and factors associated with mortality in those with CKD.

TAKEAWAY:

• The composite outcomes were not significantly different between patients with preexisting CKD and kidney disease identified during screening (adjusted hazard ratio [aHR], 0.94; 95% CI, 0.67-1.33).
• Risks for death, hospitalization, CVD, or end-stage kidney disease were not significantly different between the two groups.
• Older age (aHR per year, 1.10; 95% CI, 1.06-1.15), male sex (aHR, 2.31; 95% CI, 1.26-4.24), and heart failure (aHR, 5.18; 95% CI, 2.45-10.97) were associated with higher risks for death.
• No cases of end-stage kidney disease were reported during the study period.

IN PRACTICE:

“Our findings show that the risk of short-term mortality, hospitalization, and CVD is comparable in people diagnosed through screening to those diagnosed routinely in primary care. This suggests that screening older people for CKD may be of value to increase detection and enable disease-modifying treatment to be initiated at an earlier stage,” the study authors wrote.

SOURCE:

The study was led by Anna K. Forbes, MBChB, and José M. Ordóñez-Mena, PhD, of the Nuffield Department of Primary Care Health Sciences at the University of Oxford, England. It was published online in BJGP Open.

LIMITATIONS:

The study had a relatively short follow-up period and a cohort primarily consisting of individuals with early-stage CKD, which may have limited the identification of end-stage cases of the condition. The study population predominantly consisted of White individuals, affecting the generalizability of the results to more diverse populations. Misclassification bias may have occurred due to changes in the kidney function over time.

DISCLOSURES:

The data linkage provided by NHS Digital was supported by funding from the NIHR School of Primary Care Research. Some authors were partly supported by the NIHR Oxford Biomedical Research Centre and NIHR Oxford Thames Valley Applied Research Collaborative. One author reported receiving financial support for attending a conference, while another received consulting fees from various pharmaceutical companies. Another author reported receiving a grant from the Wellcome Trust and payment while working as a presenter for NB Medical and is an unpaid trustee of some charities.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Short-term mortality, hospitalizations, and cardiovascular disease (CVD) events are not significantly different between patients diagnosed with chronic kidney disease (CKD) during routine medical care and those through screening, in a study that found older age, being male, and having a diagnosis of heart failure are associated with an increased risk for mortality in patients with CKD.

METHODOLOGY:

• Researchers conducted a prospective cohort study involving 892 primary care patients aged 60 years or older with CKD from the Oxford Renal Cohort Study in England.
• Participants were categorized into those with existing CKD (n = 257; median age, 75 years), screen-detected CKD (n = 185; median age, roughly 73 years), or temporary reduction in kidney function (n = 450; median age, roughly 73 years).
• The primary outcome was a composite of all-cause mortality, hospitalization, CVD, or end-stage kidney disease.
• The secondary outcomes were the individual components of the composite primary outcome and factors associated with mortality in those with CKD.

TAKEAWAY:

• The composite outcomes were not significantly different between patients with preexisting CKD and kidney disease identified during screening (adjusted hazard ratio [aHR], 0.94; 95% CI, 0.67-1.33).
• Risks for death, hospitalization, CVD, or end-stage kidney disease were not significantly different between the two groups.
• Older age (aHR per year, 1.10; 95% CI, 1.06-1.15), male sex (aHR, 2.31; 95% CI, 1.26-4.24), and heart failure (aHR, 5.18; 95% CI, 2.45-10.97) were associated with higher risks for death.
• No cases of end-stage kidney disease were reported during the study period.

IN PRACTICE:

“Our findings show that the risk of short-term mortality, hospitalization, and CVD is comparable in people diagnosed through screening to those diagnosed routinely in primary care. This suggests that screening older people for CKD may be of value to increase detection and enable disease-modifying treatment to be initiated at an earlier stage,” the study authors wrote.

SOURCE:

The study was led by Anna K. Forbes, MBChB, and José M. Ordóñez-Mena, PhD, of the Nuffield Department of Primary Care Health Sciences at the University of Oxford, England. It was published online in BJGP Open.

LIMITATIONS:

The study had a relatively short follow-up period and a cohort primarily consisting of individuals with early-stage CKD, which may have limited the identification of end-stage cases of the condition. The study population predominantly consisted of White individuals, affecting the generalizability of the results to more diverse populations. Misclassification bias may have occurred due to changes in the kidney function over time.

DISCLOSURES:

The data linkage provided by NHS Digital was supported by funding from the NIHR School of Primary Care Research. Some authors were partly supported by the NIHR Oxford Biomedical Research Centre and NIHR Oxford Thames Valley Applied Research Collaborative. One author reported receiving financial support for attending a conference, while another received consulting fees from various pharmaceutical companies. Another author reported receiving a grant from the Wellcome Trust and payment while working as a presenter for NB Medical and is an unpaid trustee of some charities.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) has approved benralizumab (Fasenra) for the treatment of adults with eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome.

The drug is the second approved biologic for the treatment of EGPA. The first, mepolizumab (Nucala), was approved in 2017.

“This disease has a devastating impact on patients and the quality of their life, and they need more treatment options. The approval of another treatment in EGPA is welcome news to the approximately 15,000 patients living in the US with this difficult-to-treat rare disease,” said Joyce Kullman, executive director of the Vasculitis Foundation, in a press release on September 18. 

Benralizumab, developed by AstraZeneca, is a monoclonal antibody against the interleukin-5 alpha receptor expressed on eosinophils. The drug was first approved in 2017 as an add-on treatment for patients 12 years and older with severe eosinophilic asthma, and is now approved for use in children aged 6 years and older. 

The new indication was based on positive results from a noninferiority trial comparing benralizumab and mepolizumab. For the trial, published in the New England Journal of Medicine earlier in 2024, 140 adults with relapsing or refractory EGPA were randomized to a 30-mg subcutaneous injection of benralizumab or three separate 100-mg mepolizumab injections every 4 weeks for 1 year. At weeks 36 and 48, 59% of patients in the benralizumab group and 56% of patients in the mepolizumab group achieved remission (95% CI, –13 to 18; P = .73 for superiority). From week 42 to 52, 41% of patients who received benralizumab completely stopped taking oral glucocorticoids, compared with 26% of those who received mepolizumab.

“Patients often rely on long-term oral corticosteroids, which can cause serious and lasting side effects. Benralizumab is a much-needed treatment option, with data showing that not only is remission an achievable goal for EGPA patients, but benralizumab can also help patients taper off steroid therapy,” Michael Wechsler, MD, director of The Asthma Institute at National Jewish Health in Denver, Colorado, and the international coordinating investigator for the clinical trial, said in the press release.

Benralizumab is administered via subcutaneous injection. In adults with EGPA, the recommended dosage is 30 mg every 4 weeks for the first three doses, then once every 8 weeks.

The most common adverse reactions include headache and pharyngitis, according to the prescribing information. 

Benralizumab is also in development for the treatment of chronic obstructive pulmonary disease, chronic rhinosinusitis with nasal polyps, and hypereosinophilic syndrome.

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

The Food and Drug Administration (FDA) has approved benralizumab (Fasenra) for the treatment of adults with eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome.

The drug is the second approved biologic for the treatment of EGPA. The first, mepolizumab (Nucala), was approved in 2017.

“This disease has a devastating impact on patients and the quality of their life, and they need more treatment options. The approval of another treatment in EGPA is welcome news to the approximately 15,000 patients living in the US with this difficult-to-treat rare disease,” said Joyce Kullman, executive director of the Vasculitis Foundation, in a press release on September 18. 

Benralizumab, developed by AstraZeneca, is a monoclonal antibody against the interleukin-5 alpha receptor expressed on eosinophils. The drug was first approved in 2017 as an add-on treatment for patients 12 years and older with severe eosinophilic asthma, and is now approved for use in children aged 6 years and older. 

The new indication was based on positive results from a noninferiority trial comparing benralizumab and mepolizumab. For the trial, published in the New England Journal of Medicine earlier in 2024, 140 adults with relapsing or refractory EGPA were randomized to a 30-mg subcutaneous injection of benralizumab or three separate 100-mg mepolizumab injections every 4 weeks for 1 year. At weeks 36 and 48, 59% of patients in the benralizumab group and 56% of patients in the mepolizumab group achieved remission (95% CI, –13 to 18; P = .73 for superiority). From week 42 to 52, 41% of patients who received benralizumab completely stopped taking oral glucocorticoids, compared with 26% of those who received mepolizumab.

“Patients often rely on long-term oral corticosteroids, which can cause serious and lasting side effects. Benralizumab is a much-needed treatment option, with data showing that not only is remission an achievable goal for EGPA patients, but benralizumab can also help patients taper off steroid therapy,” Michael Wechsler, MD, director of The Asthma Institute at National Jewish Health in Denver, Colorado, and the international coordinating investigator for the clinical trial, said in the press release.

Benralizumab is administered via subcutaneous injection. In adults with EGPA, the recommended dosage is 30 mg every 4 weeks for the first three doses, then once every 8 weeks.

The most common adverse reactions include headache and pharyngitis, according to the prescribing information. 

Benralizumab is also in development for the treatment of chronic obstructive pulmonary disease, chronic rhinosinusitis with nasal polyps, and hypereosinophilic syndrome.

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

The Food and Drug Administration (FDA) has approved benralizumab (Fasenra) for the treatment of adults with eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome.

The drug is the second approved biologic for the treatment of EGPA. The first, mepolizumab (Nucala), was approved in 2017.

“This disease has a devastating impact on patients and the quality of their life, and they need more treatment options. The approval of another treatment in EGPA is welcome news to the approximately 15,000 patients living in the US with this difficult-to-treat rare disease,” said Joyce Kullman, executive director of the Vasculitis Foundation, in a press release on September 18. 

Benralizumab, developed by AstraZeneca, is a monoclonal antibody against the interleukin-5 alpha receptor expressed on eosinophils. The drug was first approved in 2017 as an add-on treatment for patients 12 years and older with severe eosinophilic asthma, and is now approved for use in children aged 6 years and older. 

The new indication was based on positive results from a noninferiority trial comparing benralizumab and mepolizumab. For the trial, published in the New England Journal of Medicine earlier in 2024, 140 adults with relapsing or refractory EGPA were randomized to a 30-mg subcutaneous injection of benralizumab or three separate 100-mg mepolizumab injections every 4 weeks for 1 year. At weeks 36 and 48, 59% of patients in the benralizumab group and 56% of patients in the mepolizumab group achieved remission (95% CI, –13 to 18; P = .73 for superiority). From week 42 to 52, 41% of patients who received benralizumab completely stopped taking oral glucocorticoids, compared with 26% of those who received mepolizumab.

“Patients often rely on long-term oral corticosteroids, which can cause serious and lasting side effects. Benralizumab is a much-needed treatment option, with data showing that not only is remission an achievable goal for EGPA patients, but benralizumab can also help patients taper off steroid therapy,” Michael Wechsler, MD, director of The Asthma Institute at National Jewish Health in Denver, Colorado, and the international coordinating investigator for the clinical trial, said in the press release.

Benralizumab is administered via subcutaneous injection. In adults with EGPA, the recommended dosage is 30 mg every 4 weeks for the first three doses, then once every 8 weeks.

The most common adverse reactions include headache and pharyngitis, according to the prescribing information. 

Benralizumab is also in development for the treatment of chronic obstructive pulmonary disease, chronic rhinosinusitis with nasal polyps, and hypereosinophilic syndrome.

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

This transcript has been edited for clarity. 

Matthew F. Watto, MD: Welcome back to The Curbsiders. I’m Dr Matthew Frank Watto, here with my great friend and America’s primary care physician, Dr. Paul Nelson Williams. 

Paul, we’re going to talk about our primary hyperparathyroidism podcast with Dr. Lindsay Kuo. It’s a topic that I feel much more clear on now.

Now, Paul, in primary care, you see a lot of calcium that is just slightly high. Can we just blame that on thiazide diuretics?

Paul N. Williams, MD: It’s a place to start. As you’re starting to think about the possible etiologies, primary hyperparathyroidism and malignancy are the two that roll right off the tongue, but it is worth going back to the patient’s medication list and making sure you’re not missing something.

Thiazides famously cause hypercalcemia, but in some of the reading I did for this episode, they may just uncover it a little bit early. Patients who are on thiazides who become hypercalcemic seem to go on to develop primary hyperthyroidism anyway. So I don’t think you can solely blame the thiazide.

Another medication that can be causative is lithium. So a good place to look first after you’ve repeated the labs and confirmed hypercalcemia is the patient’s medication list. 

Dr. Watto: We’ve talked before about the basic workup for hypercalcemia, and determining whether it’s PTH dependent or PTH independent. On the podcast, we talk more about the full workup, but I wanted to talk about the classic symptoms. Our expert made the point that we don’t see them as much anymore, although we do see kidney stones. People used to present very late in the disease because they weren’t having labs done routinely.

The classic symptoms include osteoporosis and bone tumors. People can get nephrocalcinosis and kidney stones. I hadn’t really thought of it this way because we’re used to diagnosing it early now. Do you feel the same? 

Dr. Williams: As labs have started routinely reporting calcium levels, this is more and more often how it’s picked up. The other aspect is that as we are screening for and finding osteoporosis, part of the workup almost always involves getting a parathyroid hormone and a calcium level. We’re seeing these lab abnormalities before we’re seeing symptoms, which is good.

But it also makes things more diagnostically thorny.

Dr. Watto: Dr. Lindsay Kuo made the point that when she sees patients before and after surgery, she’s aware of these nonclassic symptoms — the stones, bones, groans, and the psychiatric overtones that can be anything from fatigue or irritability to dysphoria.

Some people have a generalized weakness that’s very nonspecific. Dr. Kuo said that sometimes these symptoms will disappear after surgery. The patients may just have gotten used to them, or they thought these symptoms were caused by something else, but after surgery they went away.

There are these nonclassic symptoms that are harder to pin down. I was surprised by that.

Dr. Williams: She mentioned polydipsia and polyuria, which have been reported in other studies. It seems like it can be anything. You have to take a good history, but none of those things in and of themselves is an indication for operating unless the patient has the classic renal or bone manifestations. 

Dr. Watto: The other thing we talked about is a normal calcium level in a patient with primary hyperparathyroidism, or the finding of a PTH level in the normal range but with a high calcium level that is inappropriate. Can you talk a little bit about those two situations? 

Dr. Williams: They’re hard to say but kind of easy to manage because you treat them the same way as someone who has elevated calcium and PTH levels. 

The normocalcemic patient is something we might stumble across with osteoporosis screening. Initially the calcium level is elevated, so you repeat it and it’s normal but with an elevated PTH level. You’re like, shoot. Now what?

It turns out that most endocrine surgeons say that the indications for surgery for the classic form of primary hyperparathyroidism apply to these patients as well, and it probably helps with the bone outcomes, which is one of the things they follow most closely. If you have hypercalcemia, you should have a suppressed PTH level, the so-called normohormonal hyperparathyroidism, which is not normal at all. So even if the PTH is in the normal range, it’s still relatively elevated compared with what it should be. That situation is treated in the same way as the classic elevated PTH and elevated calcium levels.

Dr. Watto: If the calcium is abnormal and the PTH is not quite what you’d expect it to be, you can always ask your friendly neighborhood endocrinologist to help you figure out whether the patient really has one of these conditions. You have to make sure that they don’t have a simple secondary cause like a low vitamin D level. In that case, you fix the vitamin D and then recheck the numbers to see if they’ve normalized. But I have found a bunch of these edge cases in which it has been helpful to confer with an endocrinologist, especially before you send someone to a surgeon to take out their parathyroid gland. 

This was a really fantastic conversation. If you want to hear the full podcast episode, click here.
 

Dr. Watto, Clinical Assistant Professor, Department of Medicine, Perelman School of Medicine at University of Pennsylvania; Internist, Department of Medicine, Hospital Medicine Section, Pennsylvania Hospital, Philadelphia, Pennsylvania, has disclosed no relevant financial relationships. Dr. Williams, Associate Professor of Clinical Medicine, Department of General Internal Medicine, Lewis Katz School of Medicine; Staff Physician, Department of General Internal Medicine, Temple Internal Medicine Associates, Philadelphia, Pennsylvania, served as a director, officer, partner, employee, adviser, consultant, or trustee for The Curbsiders, and has received income in an amount equal to or greater than $250 from The Curbsiders.

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

This transcript has been edited for clarity. 

Matthew F. Watto, MD: Welcome back to The Curbsiders. I’m Dr Matthew Frank Watto, here with my great friend and America’s primary care physician, Dr. Paul Nelson Williams. 

Paul, we’re going to talk about our primary hyperparathyroidism podcast with Dr. Lindsay Kuo. It’s a topic that I feel much more clear on now.

Now, Paul, in primary care, you see a lot of calcium that is just slightly high. Can we just blame that on thiazide diuretics?

Paul N. Williams, MD: It’s a place to start. As you’re starting to think about the possible etiologies, primary hyperparathyroidism and malignancy are the two that roll right off the tongue, but it is worth going back to the patient’s medication list and making sure you’re not missing something.

Thiazides famously cause hypercalcemia, but in some of the reading I did for this episode, they may just uncover it a little bit early. Patients who are on thiazides who become hypercalcemic seem to go on to develop primary hyperthyroidism anyway. So I don’t think you can solely blame the thiazide.

Another medication that can be causative is lithium. So a good place to look first after you’ve repeated the labs and confirmed hypercalcemia is the patient’s medication list. 

Dr. Watto: We’ve talked before about the basic workup for hypercalcemia, and determining whether it’s PTH dependent or PTH independent. On the podcast, we talk more about the full workup, but I wanted to talk about the classic symptoms. Our expert made the point that we don’t see them as much anymore, although we do see kidney stones. People used to present very late in the disease because they weren’t having labs done routinely.

The classic symptoms include osteoporosis and bone tumors. People can get nephrocalcinosis and kidney stones. I hadn’t really thought of it this way because we’re used to diagnosing it early now. Do you feel the same? 

Dr. Williams: As labs have started routinely reporting calcium levels, this is more and more often how it’s picked up. The other aspect is that as we are screening for and finding osteoporosis, part of the workup almost always involves getting a parathyroid hormone and a calcium level. We’re seeing these lab abnormalities before we’re seeing symptoms, which is good.

But it also makes things more diagnostically thorny.

Dr. Watto: Dr. Lindsay Kuo made the point that when she sees patients before and after surgery, she’s aware of these nonclassic symptoms — the stones, bones, groans, and the psychiatric overtones that can be anything from fatigue or irritability to dysphoria.

Some people have a generalized weakness that’s very nonspecific. Dr. Kuo said that sometimes these symptoms will disappear after surgery. The patients may just have gotten used to them, or they thought these symptoms were caused by something else, but after surgery they went away.

There are these nonclassic symptoms that are harder to pin down. I was surprised by that.

Dr. Williams: She mentioned polydipsia and polyuria, which have been reported in other studies. It seems like it can be anything. You have to take a good history, but none of those things in and of themselves is an indication for operating unless the patient has the classic renal or bone manifestations. 

Dr. Watto: The other thing we talked about is a normal calcium level in a patient with primary hyperparathyroidism, or the finding of a PTH level in the normal range but with a high calcium level that is inappropriate. Can you talk a little bit about those two situations? 

Dr. Williams: They’re hard to say but kind of easy to manage because you treat them the same way as someone who has elevated calcium and PTH levels. 

The normocalcemic patient is something we might stumble across with osteoporosis screening. Initially the calcium level is elevated, so you repeat it and it’s normal but with an elevated PTH level. You’re like, shoot. Now what?

It turns out that most endocrine surgeons say that the indications for surgery for the classic form of primary hyperparathyroidism apply to these patients as well, and it probably helps with the bone outcomes, which is one of the things they follow most closely. If you have hypercalcemia, you should have a suppressed PTH level, the so-called normohormonal hyperparathyroidism, which is not normal at all. So even if the PTH is in the normal range, it’s still relatively elevated compared with what it should be. That situation is treated in the same way as the classic elevated PTH and elevated calcium levels.

Dr. Watto: If the calcium is abnormal and the PTH is not quite what you’d expect it to be, you can always ask your friendly neighborhood endocrinologist to help you figure out whether the patient really has one of these conditions. You have to make sure that they don’t have a simple secondary cause like a low vitamin D level. In that case, you fix the vitamin D and then recheck the numbers to see if they’ve normalized. But I have found a bunch of these edge cases in which it has been helpful to confer with an endocrinologist, especially before you send someone to a surgeon to take out their parathyroid gland. 

This was a really fantastic conversation. If you want to hear the full podcast episode, click here.
 

Dr. Watto, Clinical Assistant Professor, Department of Medicine, Perelman School of Medicine at University of Pennsylvania; Internist, Department of Medicine, Hospital Medicine Section, Pennsylvania Hospital, Philadelphia, Pennsylvania, has disclosed no relevant financial relationships. Dr. Williams, Associate Professor of Clinical Medicine, Department of General Internal Medicine, Lewis Katz School of Medicine; Staff Physician, Department of General Internal Medicine, Temple Internal Medicine Associates, Philadelphia, Pennsylvania, served as a director, officer, partner, employee, adviser, consultant, or trustee for The Curbsiders, and has received income in an amount equal to or greater than $250 from The Curbsiders.

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

This transcript has been edited for clarity. 

Matthew F. Watto, MD: Welcome back to The Curbsiders. I’m Dr Matthew Frank Watto, here with my great friend and America’s primary care physician, Dr. Paul Nelson Williams. 

Paul, we’re going to talk about our primary hyperparathyroidism podcast with Dr. Lindsay Kuo. It’s a topic that I feel much more clear on now.

Now, Paul, in primary care, you see a lot of calcium that is just slightly high. Can we just blame that on thiazide diuretics?

Paul N. Williams, MD: It’s a place to start. As you’re starting to think about the possible etiologies, primary hyperparathyroidism and malignancy are the two that roll right off the tongue, but it is worth going back to the patient’s medication list and making sure you’re not missing something.

Thiazides famously cause hypercalcemia, but in some of the reading I did for this episode, they may just uncover it a little bit early. Patients who are on thiazides who become hypercalcemic seem to go on to develop primary hyperthyroidism anyway. So I don’t think you can solely blame the thiazide.

Another medication that can be causative is lithium. So a good place to look first after you’ve repeated the labs and confirmed hypercalcemia is the patient’s medication list. 

Dr. Watto: We’ve talked before about the basic workup for hypercalcemia, and determining whether it’s PTH dependent or PTH independent. On the podcast, we talk more about the full workup, but I wanted to talk about the classic symptoms. Our expert made the point that we don’t see them as much anymore, although we do see kidney stones. People used to present very late in the disease because they weren’t having labs done routinely.

The classic symptoms include osteoporosis and bone tumors. People can get nephrocalcinosis and kidney stones. I hadn’t really thought of it this way because we’re used to diagnosing it early now. Do you feel the same? 

Dr. Williams: As labs have started routinely reporting calcium levels, this is more and more often how it’s picked up. The other aspect is that as we are screening for and finding osteoporosis, part of the workup almost always involves getting a parathyroid hormone and a calcium level. We’re seeing these lab abnormalities before we’re seeing symptoms, which is good.

But it also makes things more diagnostically thorny.

Dr. Watto: Dr. Lindsay Kuo made the point that when she sees patients before and after surgery, she’s aware of these nonclassic symptoms — the stones, bones, groans, and the psychiatric overtones that can be anything from fatigue or irritability to dysphoria.

Some people have a generalized weakness that’s very nonspecific. Dr. Kuo said that sometimes these symptoms will disappear after surgery. The patients may just have gotten used to them, or they thought these symptoms were caused by something else, but after surgery they went away.

There are these nonclassic symptoms that are harder to pin down. I was surprised by that.

Dr. Williams: She mentioned polydipsia and polyuria, which have been reported in other studies. It seems like it can be anything. You have to take a good history, but none of those things in and of themselves is an indication for operating unless the patient has the classic renal or bone manifestations. 

Dr. Watto: The other thing we talked about is a normal calcium level in a patient with primary hyperparathyroidism, or the finding of a PTH level in the normal range but with a high calcium level that is inappropriate. Can you talk a little bit about those two situations? 

Dr. Williams: They’re hard to say but kind of easy to manage because you treat them the same way as someone who has elevated calcium and PTH levels. 

The normocalcemic patient is something we might stumble across with osteoporosis screening. Initially the calcium level is elevated, so you repeat it and it’s normal but with an elevated PTH level. You’re like, shoot. Now what?

It turns out that most endocrine surgeons say that the indications for surgery for the classic form of primary hyperparathyroidism apply to these patients as well, and it probably helps with the bone outcomes, which is one of the things they follow most closely. If you have hypercalcemia, you should have a suppressed PTH level, the so-called normohormonal hyperparathyroidism, which is not normal at all. So even if the PTH is in the normal range, it’s still relatively elevated compared with what it should be. That situation is treated in the same way as the classic elevated PTH and elevated calcium levels.

Dr. Watto: If the calcium is abnormal and the PTH is not quite what you’d expect it to be, you can always ask your friendly neighborhood endocrinologist to help you figure out whether the patient really has one of these conditions. You have to make sure that they don’t have a simple secondary cause like a low vitamin D level. In that case, you fix the vitamin D and then recheck the numbers to see if they’ve normalized. But I have found a bunch of these edge cases in which it has been helpful to confer with an endocrinologist, especially before you send someone to a surgeon to take out their parathyroid gland. 

This was a really fantastic conversation. If you want to hear the full podcast episode, click here.
 

Dr. Watto, Clinical Assistant Professor, Department of Medicine, Perelman School of Medicine at University of Pennsylvania; Internist, Department of Medicine, Hospital Medicine Section, Pennsylvania Hospital, Philadelphia, Pennsylvania, has disclosed no relevant financial relationships. Dr. Williams, Associate Professor of Clinical Medicine, Department of General Internal Medicine, Lewis Katz School of Medicine; Staff Physician, Department of General Internal Medicine, Temple Internal Medicine Associates, Philadelphia, Pennsylvania, served as a director, officer, partner, employee, adviser, consultant, or trustee for The Curbsiders, and has received income in an amount equal to or greater than $250 from The Curbsiders.

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

TOPLINE:

MADRID — Elevated interleukin (IL) 6 levels are associated with an increased risk for obesity-related cancers in patients newly diagnosed with type 2 diabetes (T2D), potentially enabling the identification of higher-risk individuals through a simple blood test.

METHODOLOGY:

• T2D is associated with an increased risk for obesity-related cancers, including breast, renal, uterine, thyroid, ovarian, and gastrointestinal cancers, as well as multiple myeloma, possibly because of chronic low-grade inflammation.
• Researchers explored whether the markers of inflammation IL-6, tumor necrosis factor alpha (TNF-alpha), and high-sensitivity C-reactive protein (hsCRP) can serve as predictive biomarkers for obesity-related cancers in patients recently diagnosed with T2D.
• They identified patients with recent-onset T2D and no prior history of cancer participating in the ongoing Danish Centre for Strategic Research in Type 2 Diabetes cohort study.
• At study initiation, plasma levels of IL-6 and TNF-alpha were measured using Meso Scale Discovery assays, and serum levels of hsCRP were measured using immunofluorometric assays.

TAKEAWAY:

• Among 6,466 eligible patients (40.5% women; median age, 60.9 years), 327 developed obesity-related cancers over a median follow-up of 8.8 years.
• Each SD increase in log-transformed IL-6 levels increased the risk for obesity-related cancers by 19%.
• The researchers did not find a strong association between TNF-alpha or hsCRP and obesity-related cancers.
• The addition of baseline IL-6 levels to other well-known risk factors for obesity-related cancers improved the performance of a cancer prediction model from 0.685 to 0.693, translating to a small but important increase in the ability to predict whether an individual would develop one of these cancers.

IN PRACTICE:

“In future, a simple blood test could identify those at higher risk of the cancers,” said the study’s lead author in an accompanying press release.

SOURCE:

The study was led by Mathilde D. Bennetsen, Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark, and published online on August 27 as an early release from the European Association for the Study of Diabetes (EASD) 2024 Annual Meeting.

LIMITATIONS:

No limitations were discussed in this abstract. However, the reliance on registry data may have introduced potential biases related to data accuracy and completeness.

DISCLOSURES:

The Danish Centre for Strategic Research in Type 2 Diabetes was supported by grants from the Danish Agency for Science and the Novo Nordisk Foundation. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

MADRID — Elevated interleukin (IL) 6 levels are associated with an increased risk for obesity-related cancers in patients newly diagnosed with type 2 diabetes (T2D), potentially enabling the identification of higher-risk individuals through a simple blood test.

METHODOLOGY:

• T2D is associated with an increased risk for obesity-related cancers, including breast, renal, uterine, thyroid, ovarian, and gastrointestinal cancers, as well as multiple myeloma, possibly because of chronic low-grade inflammation.
• Researchers explored whether the markers of inflammation IL-6, tumor necrosis factor alpha (TNF-alpha), and high-sensitivity C-reactive protein (hsCRP) can serve as predictive biomarkers for obesity-related cancers in patients recently diagnosed with T2D.
• They identified patients with recent-onset T2D and no prior history of cancer participating in the ongoing Danish Centre for Strategic Research in Type 2 Diabetes cohort study.
• At study initiation, plasma levels of IL-6 and TNF-alpha were measured using Meso Scale Discovery assays, and serum levels of hsCRP were measured using immunofluorometric assays.

TAKEAWAY:

• Among 6,466 eligible patients (40.5% women; median age, 60.9 years), 327 developed obesity-related cancers over a median follow-up of 8.8 years.
• Each SD increase in log-transformed IL-6 levels increased the risk for obesity-related cancers by 19%.
• The researchers did not find a strong association between TNF-alpha or hsCRP and obesity-related cancers.
• The addition of baseline IL-6 levels to other well-known risk factors for obesity-related cancers improved the performance of a cancer prediction model from 0.685 to 0.693, translating to a small but important increase in the ability to predict whether an individual would develop one of these cancers.

IN PRACTICE:

“In future, a simple blood test could identify those at higher risk of the cancers,” said the study’s lead author in an accompanying press release.

SOURCE:

The study was led by Mathilde D. Bennetsen, Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark, and published online on August 27 as an early release from the European Association for the Study of Diabetes (EASD) 2024 Annual Meeting.

LIMITATIONS:

No limitations were discussed in this abstract. However, the reliance on registry data may have introduced potential biases related to data accuracy and completeness.

DISCLOSURES:

The Danish Centre for Strategic Research in Type 2 Diabetes was supported by grants from the Danish Agency for Science and the Novo Nordisk Foundation. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

MADRID — Elevated interleukin (IL) 6 levels are associated with an increased risk for obesity-related cancers in patients newly diagnosed with type 2 diabetes (T2D), potentially enabling the identification of higher-risk individuals through a simple blood test.

METHODOLOGY:

• T2D is associated with an increased risk for obesity-related cancers, including breast, renal, uterine, thyroid, ovarian, and gastrointestinal cancers, as well as multiple myeloma, possibly because of chronic low-grade inflammation.
• Researchers explored whether the markers of inflammation IL-6, tumor necrosis factor alpha (TNF-alpha), and high-sensitivity C-reactive protein (hsCRP) can serve as predictive biomarkers for obesity-related cancers in patients recently diagnosed with T2D.
• They identified patients with recent-onset T2D and no prior history of cancer participating in the ongoing Danish Centre for Strategic Research in Type 2 Diabetes cohort study.
• At study initiation, plasma levels of IL-6 and TNF-alpha were measured using Meso Scale Discovery assays, and serum levels of hsCRP were measured using immunofluorometric assays.

TAKEAWAY:

• Among 6,466 eligible patients (40.5% women; median age, 60.9 years), 327 developed obesity-related cancers over a median follow-up of 8.8 years.
• Each SD increase in log-transformed IL-6 levels increased the risk for obesity-related cancers by 19%.
• The researchers did not find a strong association between TNF-alpha or hsCRP and obesity-related cancers.
• The addition of baseline IL-6 levels to other well-known risk factors for obesity-related cancers improved the performance of a cancer prediction model from 0.685 to 0.693, translating to a small but important increase in the ability to predict whether an individual would develop one of these cancers.

IN PRACTICE:

“In future, a simple blood test could identify those at higher risk of the cancers,” said the study’s lead author in an accompanying press release.

SOURCE:

The study was led by Mathilde D. Bennetsen, Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark, and published online on August 27 as an early release from the European Association for the Study of Diabetes (EASD) 2024 Annual Meeting.

LIMITATIONS:

No limitations were discussed in this abstract. However, the reliance on registry data may have introduced potential biases related to data accuracy and completeness.

DISCLOSURES:

The Danish Centre for Strategic Research in Type 2 Diabetes was supported by grants from the Danish Agency for Science and the Novo Nordisk Foundation. The authors declared no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

An impaired central sensitivity to thyroid hormone may be associated with an increased risk for death in patients with chronic kidney disease (CKD) and normal thyroid function.

METHODOLOGY:

• Previous studies have shown that abnormal levels of thyroid-stimulating hormone (TSH) are associated with a higher mortality risk in patients with CKD, but whether the risk extends to those with normal thyroid function remains controversial.
• Researchers investigated the association between central sensitivity to thyroid hormone and the risk for all-cause mortality in 1303 euthyroid patients with CKD (mean age, 60 years; 59% women) from the National Health and Nutrition Examination Survey database (2007-2012).
• All participants had CKD stages I-IV, defined as an estimated glomerular filtration rate < 60 mL/min/1.73 m² and/or a urinary albumin to urinary creatinine ratio ≥ 30 mg/g.
• The central sensitivity to thyroid hormone was primarily evaluated using a new central thyroid hormone resistance index, the Thyroid Feedback Quantile–based Index (TFQI), using free thyroxine and TSH concentrations.
• The participants were followed for a median duration of 115 months, during which 503 died.

TAKEAWAY:

• Patients with CKD who died during the follow-up period had a significantly higher TFQI (P < .001) than those who survived.
• The rates of all-cause mortality increased from 26.61% in the lowest TFQI tertile to 40.89% in the highest tertile (P = .001).
• A per unit increase in the TFQI was associated with a 40% increased risk for all-cause mortality (hazard ratio, 1.40; 95% CI, 1.10-1.79).
• This association between TFQI level and all-cause mortality persisted in all subgroups stratified by age, gender, race, body mass index, hypertension, diabetes, cardiovascular diseases, and CKD stages.

IN PRACTICE:

“Our study demonstrates that impaired sensitivity to thyroid hormone might be associated with all-cause mortality in CKD patients with normal thyroid function, independent of other traditional risk factors and comorbidities,” the authors wrote.

SOURCE:

This study was led by Qichao Yang and Ru Dong, Department of Endocrinology, Affiliated Wujin Hospital of Jiangsu University, Changzhou, China, and was published online on August 6, 2024, in BMC Public Health.

LIMITATIONS:

Thyroid function was measured only at baseline, and the changes in thyroid function over time were not measured. The study excluded people on thyroid hormone replacement therapy but did not consider other medication use that might have affected thyroid function, such as beta-blockers, steroids, and amiodarone. Thyroid-related antibodies, metabolic syndrome, and nonalcoholic fatty liver disease were not included in the analysis as possible confounding factors. The US-based sample requires further validation.

DISCLOSURES:

The study was supported by the Changzhou Health Commission. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

An impaired central sensitivity to thyroid hormone may be associated with an increased risk for death in patients with chronic kidney disease (CKD) and normal thyroid function.

METHODOLOGY:

• Previous studies have shown that abnormal levels of thyroid-stimulating hormone (TSH) are associated with a higher mortality risk in patients with CKD, but whether the risk extends to those with normal thyroid function remains controversial.
• Researchers investigated the association between central sensitivity to thyroid hormone and the risk for all-cause mortality in 1303 euthyroid patients with CKD (mean age, 60 years; 59% women) from the National Health and Nutrition Examination Survey database (2007-2012).
• All participants had CKD stages I-IV, defined as an estimated glomerular filtration rate < 60 mL/min/1.73 m² and/or a urinary albumin to urinary creatinine ratio ≥ 30 mg/g.
• The central sensitivity to thyroid hormone was primarily evaluated using a new central thyroid hormone resistance index, the Thyroid Feedback Quantile–based Index (TFQI), using free thyroxine and TSH concentrations.
• The participants were followed for a median duration of 115 months, during which 503 died.

TAKEAWAY:

• Patients with CKD who died during the follow-up period had a significantly higher TFQI (P < .001) than those who survived.
• The rates of all-cause mortality increased from 26.61% in the lowest TFQI tertile to 40.89% in the highest tertile (P = .001).
• A per unit increase in the TFQI was associated with a 40% increased risk for all-cause mortality (hazard ratio, 1.40; 95% CI, 1.10-1.79).
• This association between TFQI level and all-cause mortality persisted in all subgroups stratified by age, gender, race, body mass index, hypertension, diabetes, cardiovascular diseases, and CKD stages.

IN PRACTICE:

“Our study demonstrates that impaired sensitivity to thyroid hormone might be associated with all-cause mortality in CKD patients with normal thyroid function, independent of other traditional risk factors and comorbidities,” the authors wrote.

SOURCE:

This study was led by Qichao Yang and Ru Dong, Department of Endocrinology, Affiliated Wujin Hospital of Jiangsu University, Changzhou, China, and was published online on August 6, 2024, in BMC Public Health.

LIMITATIONS:

Thyroid function was measured only at baseline, and the changes in thyroid function over time were not measured. The study excluded people on thyroid hormone replacement therapy but did not consider other medication use that might have affected thyroid function, such as beta-blockers, steroids, and amiodarone. Thyroid-related antibodies, metabolic syndrome, and nonalcoholic fatty liver disease were not included in the analysis as possible confounding factors. The US-based sample requires further validation.

DISCLOSURES:

The study was supported by the Changzhou Health Commission. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

An impaired central sensitivity to thyroid hormone may be associated with an increased risk for death in patients with chronic kidney disease (CKD) and normal thyroid function.

METHODOLOGY:

• Previous studies have shown that abnormal levels of thyroid-stimulating hormone (TSH) are associated with a higher mortality risk in patients with CKD, but whether the risk extends to those with normal thyroid function remains controversial.
• Researchers investigated the association between central sensitivity to thyroid hormone and the risk for all-cause mortality in 1303 euthyroid patients with CKD (mean age, 60 years; 59% women) from the National Health and Nutrition Examination Survey database (2007-2012).
• All participants had CKD stages I-IV, defined as an estimated glomerular filtration rate < 60 mL/min/1.73 m² and/or a urinary albumin to urinary creatinine ratio ≥ 30 mg/g.
• The central sensitivity to thyroid hormone was primarily evaluated using a new central thyroid hormone resistance index, the Thyroid Feedback Quantile–based Index (TFQI), using free thyroxine and TSH concentrations.
• The participants were followed for a median duration of 115 months, during which 503 died.

TAKEAWAY:

• Patients with CKD who died during the follow-up period had a significantly higher TFQI (P < .001) than those who survived.
• The rates of all-cause mortality increased from 26.61% in the lowest TFQI tertile to 40.89% in the highest tertile (P = .001).
• A per unit increase in the TFQI was associated with a 40% increased risk for all-cause mortality (hazard ratio, 1.40; 95% CI, 1.10-1.79).
• This association between TFQI level and all-cause mortality persisted in all subgroups stratified by age, gender, race, body mass index, hypertension, diabetes, cardiovascular diseases, and CKD stages.

IN PRACTICE:

“Our study demonstrates that impaired sensitivity to thyroid hormone might be associated with all-cause mortality in CKD patients with normal thyroid function, independent of other traditional risk factors and comorbidities,” the authors wrote.

SOURCE:

This study was led by Qichao Yang and Ru Dong, Department of Endocrinology, Affiliated Wujin Hospital of Jiangsu University, Changzhou, China, and was published online on August 6, 2024, in BMC Public Health.

LIMITATIONS:

Thyroid function was measured only at baseline, and the changes in thyroid function over time were not measured. The study excluded people on thyroid hormone replacement therapy but did not consider other medication use that might have affected thyroid function, such as beta-blockers, steroids, and amiodarone. Thyroid-related antibodies, metabolic syndrome, and nonalcoholic fatty liver disease were not included in the analysis as possible confounding factors. The US-based sample requires further validation.

DISCLOSURES:

The study was supported by the Changzhou Health Commission. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Higher rheumatoid arthritis (RA) disease activity is associated with an accelerated kidney function decline and increased risk for chronic kidney disease (CKD) stages G3a and G3b.

METHODOLOGY:

• Researchers analyzed data from the CorEvitas RA registry, a prospective observational cohort in the United States, between 2001 and 2022, to evaluate the longitudinal association between RA disease activity and changes in kidney function.
• They included 31,129 patients with RA (median age, 58 years; 76.3% women) who had a baseline estimated glomerular filtration rate (eGFR) ≥ 60 mL/min per 1.73 m² and received treatment with disease-modifying antirheumatic drugs (DMARDs).
• The participants were categorized into those in remission (n = 6647) and those with low (n = 10,028), moderate (n = 8548), and high (n = 5906) disease activity based on the time-averaged Clinical Disease Activity Index and followed for a median duration of 3.5 years.
• The primary outcome was a longitudinal change in eGFR, and the secondary outcomes were the development of CKD stage G3a (eGFR < 60 mL/min/1.73 m2) and stage G3b (eGFR < 45 mL/min/1.73 m2).

TAKEAWAY:

• Higher RA disease activity was associated with a faster decline in eGFR, with those having moderate and high RA disease activity experiencing an additional mean annual decline of 0.17 mL/min per 1.73 m² and 0.18 mL/min per 1.73 m², respectively, compared with those in remission.
• The decline in annual eGFR was even more accelerated when patients had consistently high disease activity since the time of enrollment (−0.43 mL/min per 1.73 m²).
• Patients with high RA disease activity had a 1.27 times (adjusted hazard ratio, 1.27; 95% CI, 1.05-1.52) higher risk of developing CKD stage G3a and a 1.93 times (aHR, 1.93; 95% CI, 1.16-3.20) higher risk for CKD stage G3b, compared with those in remission.

IN PRACTICE:

“This study suggests that controlling disease activity may potentially contribute to preserving kidney function in patients with RA,” the authors wrote.

SOURCE:

This study was led by Sho Fukui, MD, Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, both in Boston, Massachusetts, and was published online in Annals of the Rheumatic Diseases.

LIMITATIONS:

This study relied on serum creatinine and not cystatin C to estimate kidney function. It also did not collect information on the severity of comorbidities, which may have introduced residual confounding. Further studies are warranted to check the effect of DMARD therapy on renal function.

DISCLOSURES:

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Some authors reported serving as scientific advisers or consultants, receiving consulting fees or salary support, or having other ties with pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Higher rheumatoid arthritis (RA) disease activity is associated with an accelerated kidney function decline and increased risk for chronic kidney disease (CKD) stages G3a and G3b.

METHODOLOGY:

• Researchers analyzed data from the CorEvitas RA registry, a prospective observational cohort in the United States, between 2001 and 2022, to evaluate the longitudinal association between RA disease activity and changes in kidney function.
• They included 31,129 patients with RA (median age, 58 years; 76.3% women) who had a baseline estimated glomerular filtration rate (eGFR) ≥ 60 mL/min per 1.73 m² and received treatment with disease-modifying antirheumatic drugs (DMARDs).
• The participants were categorized into those in remission (n = 6647) and those with low (n = 10,028), moderate (n = 8548), and high (n = 5906) disease activity based on the time-averaged Clinical Disease Activity Index and followed for a median duration of 3.5 years.
• The primary outcome was a longitudinal change in eGFR, and the secondary outcomes were the development of CKD stage G3a (eGFR < 60 mL/min/1.73 m2) and stage G3b (eGFR < 45 mL/min/1.73 m2).

TAKEAWAY:

• Higher RA disease activity was associated with a faster decline in eGFR, with those having moderate and high RA disease activity experiencing an additional mean annual decline of 0.17 mL/min per 1.73 m² and 0.18 mL/min per 1.73 m², respectively, compared with those in remission.
• The decline in annual eGFR was even more accelerated when patients had consistently high disease activity since the time of enrollment (−0.43 mL/min per 1.73 m²).
• Patients with high RA disease activity had a 1.27 times (adjusted hazard ratio, 1.27; 95% CI, 1.05-1.52) higher risk of developing CKD stage G3a and a 1.93 times (aHR, 1.93; 95% CI, 1.16-3.20) higher risk for CKD stage G3b, compared with those in remission.

IN PRACTICE:

“This study suggests that controlling disease activity may potentially contribute to preserving kidney function in patients with RA,” the authors wrote.

SOURCE:

This study was led by Sho Fukui, MD, Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, both in Boston, Massachusetts, and was published online in Annals of the Rheumatic Diseases.

LIMITATIONS:

This study relied on serum creatinine and not cystatin C to estimate kidney function. It also did not collect information on the severity of comorbidities, which may have introduced residual confounding. Further studies are warranted to check the effect of DMARD therapy on renal function.

DISCLOSURES:

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Some authors reported serving as scientific advisers or consultants, receiving consulting fees or salary support, or having other ties with pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Higher rheumatoid arthritis (RA) disease activity is associated with an accelerated kidney function decline and increased risk for chronic kidney disease (CKD) stages G3a and G3b.

METHODOLOGY:

• Researchers analyzed data from the CorEvitas RA registry, a prospective observational cohort in the United States, between 2001 and 2022, to evaluate the longitudinal association between RA disease activity and changes in kidney function.
• They included 31,129 patients with RA (median age, 58 years; 76.3% women) who had a baseline estimated glomerular filtration rate (eGFR) ≥ 60 mL/min per 1.73 m² and received treatment with disease-modifying antirheumatic drugs (DMARDs).
• The participants were categorized into those in remission (n = 6647) and those with low (n = 10,028), moderate (n = 8548), and high (n = 5906) disease activity based on the time-averaged Clinical Disease Activity Index and followed for a median duration of 3.5 years.
• The primary outcome was a longitudinal change in eGFR, and the secondary outcomes were the development of CKD stage G3a (eGFR < 60 mL/min/1.73 m2) and stage G3b (eGFR < 45 mL/min/1.73 m2).

TAKEAWAY:

• Higher RA disease activity was associated with a faster decline in eGFR, with those having moderate and high RA disease activity experiencing an additional mean annual decline of 0.17 mL/min per 1.73 m² and 0.18 mL/min per 1.73 m², respectively, compared with those in remission.
• The decline in annual eGFR was even more accelerated when patients had consistently high disease activity since the time of enrollment (−0.43 mL/min per 1.73 m²).
• Patients with high RA disease activity had a 1.27 times (adjusted hazard ratio, 1.27; 95% CI, 1.05-1.52) higher risk of developing CKD stage G3a and a 1.93 times (aHR, 1.93; 95% CI, 1.16-3.20) higher risk for CKD stage G3b, compared with those in remission.

IN PRACTICE:

“This study suggests that controlling disease activity may potentially contribute to preserving kidney function in patients with RA,” the authors wrote.

SOURCE:

This study was led by Sho Fukui, MD, Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, both in Boston, Massachusetts, and was published online in Annals of the Rheumatic Diseases.

LIMITATIONS:

This study relied on serum creatinine and not cystatin C to estimate kidney function. It also did not collect information on the severity of comorbidities, which may have introduced residual confounding. Further studies are warranted to check the effect of DMARD therapy on renal function.

DISCLOSURES:

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Some authors reported serving as scientific advisers or consultants, receiving consulting fees or salary support, or having other ties with pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.