MDedge Neurology

The Food and Drug Administration has approved an expanded indication for atogepant (Qulipta, Abbvie) to include prevention of chronic migraine in adults. The approval makes atogepant the first, and only, oral calcitonin gene-related peptide receptor antagonist approved to prevent migraine across frequencies, including episodic and chronic, the company said in a news release.

The FDA initially approved atogepant in 2021 for the prevention of episodic migraine in adults.

Once-daily atogepant is available in three doses – 10 mg, 30 mg, and 60 mg – for prevention of episodic migraine. However, only the 60-mg dose of medication is indicated for the preventive treatment of chronic migraine.

The expanded indication in chronic migraine is based on positive results of the phase 3 PROGRESS trial, which evaluated atogepant in more than 700 adults with chronic migraine.

The trial met the primary endpoint of statistically significant reduction from baseline in mean monthly migraine days with atogepant compared with placebo across the 12-week treatment period.

Treatment with atogepant also led to statistically significant improvements in all six secondary endpoints, including the proportion of patients that achieved at least a 50% reduction in mean monthly migraine days across 12 weeks and improvements in function and reduction in activity impairment caused by migraine.

The efficacy results are consistent with those in the ADVANCE episodic migraine trial.

The overall safety profile of atogepant is consistent with the episodic migraine patient population, with the most common adverse events including constipation, nausea, and fatigue/sleepiness.

“The FDA approval is an important milestone, providing those most impacted by migraine with a new, safe, and effective treatment option in a convenient, once-daily pill,” Peter McAllister, MD, director of the New England Center for Neurology and Headache, Stamford, Conn., said in the news release.

The data demonstrate that atogepant “helps reduce the burden of migraine by delivering improvements in function, with high response rates and sustained efficacy over 12 weeks. These are critical factors neurologists and headache specialists consider when prescribing a treatment option, particularly for those with chronic migraine,” Dr. McAllister added.

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

The Food and Drug Administration has approved an expanded indication for atogepant (Qulipta, Abbvie) to include prevention of chronic migraine in adults. The approval makes atogepant the first, and only, oral calcitonin gene-related peptide receptor antagonist approved to prevent migraine across frequencies, including episodic and chronic, the company said in a news release.

The FDA initially approved atogepant in 2021 for the prevention of episodic migraine in adults.

Once-daily atogepant is available in three doses – 10 mg, 30 mg, and 60 mg – for prevention of episodic migraine. However, only the 60-mg dose of medication is indicated for the preventive treatment of chronic migraine.

The expanded indication in chronic migraine is based on positive results of the phase 3 PROGRESS trial, which evaluated atogepant in more than 700 adults with chronic migraine.

The trial met the primary endpoint of statistically significant reduction from baseline in mean monthly migraine days with atogepant compared with placebo across the 12-week treatment period.

Treatment with atogepant also led to statistically significant improvements in all six secondary endpoints, including the proportion of patients that achieved at least a 50% reduction in mean monthly migraine days across 12 weeks and improvements in function and reduction in activity impairment caused by migraine.

The efficacy results are consistent with those in the ADVANCE episodic migraine trial.

The overall safety profile of atogepant is consistent with the episodic migraine patient population, with the most common adverse events including constipation, nausea, and fatigue/sleepiness.

“The FDA approval is an important milestone, providing those most impacted by migraine with a new, safe, and effective treatment option in a convenient, once-daily pill,” Peter McAllister, MD, director of the New England Center for Neurology and Headache, Stamford, Conn., said in the news release.

The data demonstrate that atogepant “helps reduce the burden of migraine by delivering improvements in function, with high response rates and sustained efficacy over 12 weeks. These are critical factors neurologists and headache specialists consider when prescribing a treatment option, particularly for those with chronic migraine,” Dr. McAllister added.

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

The Food and Drug Administration has approved an expanded indication for atogepant (Qulipta, Abbvie) to include prevention of chronic migraine in adults. The approval makes atogepant the first, and only, oral calcitonin gene-related peptide receptor antagonist approved to prevent migraine across frequencies, including episodic and chronic, the company said in a news release.

The FDA initially approved atogepant in 2021 for the prevention of episodic migraine in adults.

Once-daily atogepant is available in three doses – 10 mg, 30 mg, and 60 mg – for prevention of episodic migraine. However, only the 60-mg dose of medication is indicated for the preventive treatment of chronic migraine.

The expanded indication in chronic migraine is based on positive results of the phase 3 PROGRESS trial, which evaluated atogepant in more than 700 adults with chronic migraine.

The trial met the primary endpoint of statistically significant reduction from baseline in mean monthly migraine days with atogepant compared with placebo across the 12-week treatment period.

Treatment with atogepant also led to statistically significant improvements in all six secondary endpoints, including the proportion of patients that achieved at least a 50% reduction in mean monthly migraine days across 12 weeks and improvements in function and reduction in activity impairment caused by migraine.

The efficacy results are consistent with those in the ADVANCE episodic migraine trial.

The overall safety profile of atogepant is consistent with the episodic migraine patient population, with the most common adverse events including constipation, nausea, and fatigue/sleepiness.

“The FDA approval is an important milestone, providing those most impacted by migraine with a new, safe, and effective treatment option in a convenient, once-daily pill,” Peter McAllister, MD, director of the New England Center for Neurology and Headache, Stamford, Conn., said in the news release.

The data demonstrate that atogepant “helps reduce the burden of migraine by delivering improvements in function, with high response rates and sustained efficacy over 12 weeks. These are critical factors neurologists and headache specialists consider when prescribing a treatment option, particularly for those with chronic migraine,” Dr. McAllister added.

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

What is the most dangerous animal on Earth? Which one has killed more humans since we first began walking upright?

The mind leaps to the vicious and dangerous – great white sharks. lions. tigers. crocodiles. The fearsome predators of the planet But realistically, more people are killed and injured by large herbivores each year than predators. Just watch news updates from Yellowstone during their busy season.

Anyway, the correct answer is ... none of the above.

It’s the mosquito, and the many microbes it’s a vector for. Malaria, in particular. Even today, one to two people die each minute from malaria on planet Earth. Even the once-devastating bubonic plague is no longer a major concern.

What do Presidents Washington, Kennedy, Eisenhower, Lincoln, Monroe, Grant, Garfield, Jackson, Teddy Roosevelt, and other historical VIPs like Oliver Cromwell, King Tut, and numerous kings, queens, and popes all have in common? They all had malaria. Cromwell, Tut, and many royal and religious figures died of it.

You can make a solid argument that malaria is the disease that’s affected the course of history more than any other (you could make a good case for the plague, too, but it’s less relevant today). The control of malaria is what allowed the Panama canal to happen.

I’m bringing this up because, mostly overlooked in the news recently as we argued about light beer endorsements, TV pundits, and the NFL draft, is the approval and gradual increase in use of a malaria vaccine.

This is a pretty big deal given the scope of the problem and the fact that the most effective prevention up until recently was a mosquito net.

We tend to see malaria as someone else’s problem, something that affects the tropics, but forget that as recently as the 1940s it was still common in the U.S. During the Civil War as many as 1 million soldiers were infected with it. Given the right conditions it could easily return here.

Which is why we should be more aware of these things. As COVID showed, infectious diseases are never some other country’s, or continent’s, problem. They affect all of us either directly or indirectly. In the interconnected economies of the world illnesses in one area can spread to others. Even if they don’t they can still have significant effects on supply chains, since so much of what we depend on comes from somewhere else.

COVID, by comparison, is small beer. Just think about smallpox, or the plague, or polio, as to what an unchecked disease can do to a society until medicine catches up with it.

There will always be new diseases. Microbes and humans have been in a state of hostilities for a few million years now, and likely always will be. But every victory along the way is a victory for everyone, regardless of who they are or where they live.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

What is the most dangerous animal on Earth? Which one has killed more humans since we first began walking upright?

The mind leaps to the vicious and dangerous – great white sharks. lions. tigers. crocodiles. The fearsome predators of the planet But realistically, more people are killed and injured by large herbivores each year than predators. Just watch news updates from Yellowstone during their busy season.

Anyway, the correct answer is ... none of the above.

It’s the mosquito, and the many microbes it’s a vector for. Malaria, in particular. Even today, one to two people die each minute from malaria on planet Earth. Even the once-devastating bubonic plague is no longer a major concern.

What do Presidents Washington, Kennedy, Eisenhower, Lincoln, Monroe, Grant, Garfield, Jackson, Teddy Roosevelt, and other historical VIPs like Oliver Cromwell, King Tut, and numerous kings, queens, and popes all have in common? They all had malaria. Cromwell, Tut, and many royal and religious figures died of it.

You can make a solid argument that malaria is the disease that’s affected the course of history more than any other (you could make a good case for the plague, too, but it’s less relevant today). The control of malaria is what allowed the Panama canal to happen.

I’m bringing this up because, mostly overlooked in the news recently as we argued about light beer endorsements, TV pundits, and the NFL draft, is the approval and gradual increase in use of a malaria vaccine.

This is a pretty big deal given the scope of the problem and the fact that the most effective prevention up until recently was a mosquito net.

We tend to see malaria as someone else’s problem, something that affects the tropics, but forget that as recently as the 1940s it was still common in the U.S. During the Civil War as many as 1 million soldiers were infected with it. Given the right conditions it could easily return here.

Which is why we should be more aware of these things. As COVID showed, infectious diseases are never some other country’s, or continent’s, problem. They affect all of us either directly or indirectly. In the interconnected economies of the world illnesses in one area can spread to others. Even if they don’t they can still have significant effects on supply chains, since so much of what we depend on comes from somewhere else.

COVID, by comparison, is small beer. Just think about smallpox, or the plague, or polio, as to what an unchecked disease can do to a society until medicine catches up with it.

There will always be new diseases. Microbes and humans have been in a state of hostilities for a few million years now, and likely always will be. But every victory along the way is a victory for everyone, regardless of who they are or where they live.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

What is the most dangerous animal on Earth? Which one has killed more humans since we first began walking upright?

The mind leaps to the vicious and dangerous – great white sharks. lions. tigers. crocodiles. The fearsome predators of the planet But realistically, more people are killed and injured by large herbivores each year than predators. Just watch news updates from Yellowstone during their busy season.

Anyway, the correct answer is ... none of the above.

It’s the mosquito, and the many microbes it’s a vector for. Malaria, in particular. Even today, one to two people die each minute from malaria on planet Earth. Even the once-devastating bubonic plague is no longer a major concern.

What do Presidents Washington, Kennedy, Eisenhower, Lincoln, Monroe, Grant, Garfield, Jackson, Teddy Roosevelt, and other historical VIPs like Oliver Cromwell, King Tut, and numerous kings, queens, and popes all have in common? They all had malaria. Cromwell, Tut, and many royal and religious figures died of it.

You can make a solid argument that malaria is the disease that’s affected the course of history more than any other (you could make a good case for the plague, too, but it’s less relevant today). The control of malaria is what allowed the Panama canal to happen.

I’m bringing this up because, mostly overlooked in the news recently as we argued about light beer endorsements, TV pundits, and the NFL draft, is the approval and gradual increase in use of a malaria vaccine.

This is a pretty big deal given the scope of the problem and the fact that the most effective prevention up until recently was a mosquito net.

We tend to see malaria as someone else’s problem, something that affects the tropics, but forget that as recently as the 1940s it was still common in the U.S. During the Civil War as many as 1 million soldiers were infected with it. Given the right conditions it could easily return here.

Which is why we should be more aware of these things. As COVID showed, infectious diseases are never some other country’s, or continent’s, problem. They affect all of us either directly or indirectly. In the interconnected economies of the world illnesses in one area can spread to others. Even if they don’t they can still have significant effects on supply chains, since so much of what we depend on comes from somewhere else.

COVID, by comparison, is small beer. Just think about smallpox, or the plague, or polio, as to what an unchecked disease can do to a society until medicine catches up with it.

There will always be new diseases. Microbes and humans have been in a state of hostilities for a few million years now, and likely always will be. But every victory along the way is a victory for everyone, regardless of who they are or where they live.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

Since the COVID-19 pandemic started more than 3 years ago, the longer-lasting effects of SARS-CoV-2 infection have continued to reveal themselves. Approximately 28% of Americans report having ever experienced post-COVID conditions, such as brain fog, postexertional malaise, and joint pain, and 11% say they are still experiencing these long-term effects. Now, new research is showing that people who have had COVID are more likely to newly develop an autoimmune disease. Exactly why this is happening is less clear, experts say.

Two preprint studies and one study published in a peer-reviewed journal provide strong evidence that patients who have been infected with SARS-CoV-2 are at elevated risk of developing an autoimmune disease. The studies retrospectively reviewed medical records from three countries and compared the incidence of new-onset autoimmune disease among patients who had polymerase chain reaction–confirmed COVID-19 and those who had never been diagnosed with the virus.

A study analyzing the health records of 3.8 million U.S. patients – more than 888,460 with confirmed COVID-19 – found that the COVID-19 group was two to three times as likely to develop various autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, and systemic sclerosis. A U.K. preprint study that included more than 458,000 people with confirmed COVID found that those who had previously been infected with SARS-CoV-2 were 22% more likely to develop an autoimmune disease compared with the control group. In this cohort, the diseases most strongly associated with COVID-19 were type 1 diabetes, inflammatory bowel disease, and psoriasis. A preprint study from German researchers found that COVID-19 patients were almost 43% more likely to develop an autoimmune disease, compared with those who had never been infected. COVID-19 was most strongly linked to vasculitis.
 

These large studies are telling us, “Yes, this link is there, so we have to accept it,” Sonia Sharma, PhD, of the Center for Autoimmunity and Inflammation at the La Jolla (Calif.) Institute for Immunology, told this news organization. But this is not the first time that autoimmune diseases have been linked to previous infections.

La Jolla Institute for Immunology

Researchers have known for decades that Epstein-Barr virus infection is linked to several autoimmune diseases, including systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis. More recent research suggests the virus may activate certain genes associated with these immune disorders. Hepatitis C virus can induce cryoglobulinemia, and infection with cytomegalovirus has been implicated in several autoimmune diseases. Bacterial infections have also been linked to autoimmunity, such as group A streptococcus and rheumatic fever, as well as salmonella and reactive arthritis, to name only a few.

“In a way, this isn’t necessarily a new concept to physicians, particularly rheumatologists,” said Jeffrey A. Sparks, MD, a rheumatologist at Brigham and Women’s Hospital in Boston. “There’s a fine line between appropriately clearing an infection and the body overreacting and setting off a cascade where the immune system is chronically overactive that can manifest as an autoimmune disease,” he told this news organization.

A dysregulated response to infection

It takes the immune system a week or two to develop antigen-specific antibodies to a new pathogen. But for patients with serious infections – in this instance, COVID-19 – that’s time they don’t have. Therefore, the immune system has an alternative pathway, called extrafollicular activation, that creates fast-acting antibodies, explained Matthew Woodruff, PhD, an instructor of immunology and rheumatology at Emory University, Atlanta.

Emory University School of Medicine

The trade-off is that these antibodies are not as specific and can target the body’s own tissues. This dysregulation of antibody selection is generally short lived and fades when more targeted antibodies are produced and take over, but in some cases, this process can lead to high levels of self-targeting antibodies that can harm the body’s organs and tissues. Research also suggests that for patients who experience long COVID, the same autoantibodies that drive the initial immune response are detectable in the body months after infection, though it is not known whether these lingering immune cells cause these longer-lasting symptoms.

“If you have a virus that causes hyperinflammation plus organ damage, that is a recipe for disaster,” Dr. Sharma said. “It’s a recipe for autoantibodies and autoreactive T cells that down the road can attack the body’s own tissues, especially in people whose immune system is trained in such a way to cause self-reactivity,” she added.

This hyperinflammation can result in rare but serious complications, such as multisystem inflammatory syndrome in children and adults, which can occur 2-6 weeks after SARS-CoV-2 infection. But even in these patients with severe illness, organ-specific complications tend to resolve in 6 months with “no significant sequelae 1 year after diagnosis,” according to the Centers for Disease Control and Prevention. And while long COVID can last for a year or longer, data suggest that symptoms do eventually resolve for most people. What is not clear is why acute autoimmunity triggered by COVID-19 can become a chronic condition in certain patients.
 

Predisposition to autoimmunity

P. J. Utz, MD, PhD, professor of immunology and rheumatology at Stanford (Calif.) University, said that people who develop autoimmune disease after SARS-CoV-2 infection may have already been predisposed toward autoimmunity. Especially for autoimmune diseases such as type 1 diabetes and lupus, autoantibodies can appear and circulate in the body for more than a decade in some people before they present with any clinical symptoms. “Their immune system is primed such that if they get infected with something – or they have some other environmental trigger that maybe we don’t know about yet – that is enough to then push them over the edge so that they get full-blown autoimmunity,” he said. What is not known is whether these patients’ conditions would have advanced to true clinical disease had they not been infected, he said.

Steve Fisch

He also noted that the presence of autoantibodies does not necessarily mean someone has autoimmune disease; healthy people can also have autoantibodies, and everyone develops them with age. “My advice would be, ‘Don’t lose sleep over this,’ “ he said.

Dr. Sparks agreed that while these retrospective studies did show an elevated risk of autoimmune disease after COVID-19, that risk appears to be relatively small. “As a practicing rheumatologist, we aren’t seeing a stampede of patients with new-onset rheumatic diseases,” he said. “It’s not like we’re overwhelmed with autoimmune patients, even though almost everyone’s had COVID. So, if there is a risk, it’s very modest.”

Dr. Sparks is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the R. Bruce and Joan M. Mickey Research Scholar Fund, and the Llura Gund Award for Rheumatoid Arthritis Research and Care. Dr. Utz receives research funding from Pfizer. Dr. Sharma and Dr. Woodruff have disclosed no relevant financial relationships.
 

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

Since the COVID-19 pandemic started more than 3 years ago, the longer-lasting effects of SARS-CoV-2 infection have continued to reveal themselves. Approximately 28% of Americans report having ever experienced post-COVID conditions, such as brain fog, postexertional malaise, and joint pain, and 11% say they are still experiencing these long-term effects. Now, new research is showing that people who have had COVID are more likely to newly develop an autoimmune disease. Exactly why this is happening is less clear, experts say.

Two preprint studies and one study published in a peer-reviewed journal provide strong evidence that patients who have been infected with SARS-CoV-2 are at elevated risk of developing an autoimmune disease. The studies retrospectively reviewed medical records from three countries and compared the incidence of new-onset autoimmune disease among patients who had polymerase chain reaction–confirmed COVID-19 and those who had never been diagnosed with the virus.

A study analyzing the health records of 3.8 million U.S. patients – more than 888,460 with confirmed COVID-19 – found that the COVID-19 group was two to three times as likely to develop various autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, and systemic sclerosis. A U.K. preprint study that included more than 458,000 people with confirmed COVID found that those who had previously been infected with SARS-CoV-2 were 22% more likely to develop an autoimmune disease compared with the control group. In this cohort, the diseases most strongly associated with COVID-19 were type 1 diabetes, inflammatory bowel disease, and psoriasis. A preprint study from German researchers found that COVID-19 patients were almost 43% more likely to develop an autoimmune disease, compared with those who had never been infected. COVID-19 was most strongly linked to vasculitis.
 

These large studies are telling us, “Yes, this link is there, so we have to accept it,” Sonia Sharma, PhD, of the Center for Autoimmunity and Inflammation at the La Jolla (Calif.) Institute for Immunology, told this news organization. But this is not the first time that autoimmune diseases have been linked to previous infections.

La Jolla Institute for Immunology

Researchers have known for decades that Epstein-Barr virus infection is linked to several autoimmune diseases, including systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis. More recent research suggests the virus may activate certain genes associated with these immune disorders. Hepatitis C virus can induce cryoglobulinemia, and infection with cytomegalovirus has been implicated in several autoimmune diseases. Bacterial infections have also been linked to autoimmunity, such as group A streptococcus and rheumatic fever, as well as salmonella and reactive arthritis, to name only a few.

“In a way, this isn’t necessarily a new concept to physicians, particularly rheumatologists,” said Jeffrey A. Sparks, MD, a rheumatologist at Brigham and Women’s Hospital in Boston. “There’s a fine line between appropriately clearing an infection and the body overreacting and setting off a cascade where the immune system is chronically overactive that can manifest as an autoimmune disease,” he told this news organization.

A dysregulated response to infection

It takes the immune system a week or two to develop antigen-specific antibodies to a new pathogen. But for patients with serious infections – in this instance, COVID-19 – that’s time they don’t have. Therefore, the immune system has an alternative pathway, called extrafollicular activation, that creates fast-acting antibodies, explained Matthew Woodruff, PhD, an instructor of immunology and rheumatology at Emory University, Atlanta.

Emory University School of Medicine

The trade-off is that these antibodies are not as specific and can target the body’s own tissues. This dysregulation of antibody selection is generally short lived and fades when more targeted antibodies are produced and take over, but in some cases, this process can lead to high levels of self-targeting antibodies that can harm the body’s organs and tissues. Research also suggests that for patients who experience long COVID, the same autoantibodies that drive the initial immune response are detectable in the body months after infection, though it is not known whether these lingering immune cells cause these longer-lasting symptoms.

“If you have a virus that causes hyperinflammation plus organ damage, that is a recipe for disaster,” Dr. Sharma said. “It’s a recipe for autoantibodies and autoreactive T cells that down the road can attack the body’s own tissues, especially in people whose immune system is trained in such a way to cause self-reactivity,” she added.

This hyperinflammation can result in rare but serious complications, such as multisystem inflammatory syndrome in children and adults, which can occur 2-6 weeks after SARS-CoV-2 infection. But even in these patients with severe illness, organ-specific complications tend to resolve in 6 months with “no significant sequelae 1 year after diagnosis,” according to the Centers for Disease Control and Prevention. And while long COVID can last for a year or longer, data suggest that symptoms do eventually resolve for most people. What is not clear is why acute autoimmunity triggered by COVID-19 can become a chronic condition in certain patients.
 

Predisposition to autoimmunity

P. J. Utz, MD, PhD, professor of immunology and rheumatology at Stanford (Calif.) University, said that people who develop autoimmune disease after SARS-CoV-2 infection may have already been predisposed toward autoimmunity. Especially for autoimmune diseases such as type 1 diabetes and lupus, autoantibodies can appear and circulate in the body for more than a decade in some people before they present with any clinical symptoms. “Their immune system is primed such that if they get infected with something – or they have some other environmental trigger that maybe we don’t know about yet – that is enough to then push them over the edge so that they get full-blown autoimmunity,” he said. What is not known is whether these patients’ conditions would have advanced to true clinical disease had they not been infected, he said.

Steve Fisch

He also noted that the presence of autoantibodies does not necessarily mean someone has autoimmune disease; healthy people can also have autoantibodies, and everyone develops them with age. “My advice would be, ‘Don’t lose sleep over this,’ “ he said.

Dr. Sparks agreed that while these retrospective studies did show an elevated risk of autoimmune disease after COVID-19, that risk appears to be relatively small. “As a practicing rheumatologist, we aren’t seeing a stampede of patients with new-onset rheumatic diseases,” he said. “It’s not like we’re overwhelmed with autoimmune patients, even though almost everyone’s had COVID. So, if there is a risk, it’s very modest.”

Dr. Sparks is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the R. Bruce and Joan M. Mickey Research Scholar Fund, and the Llura Gund Award for Rheumatoid Arthritis Research and Care. Dr. Utz receives research funding from Pfizer. Dr. Sharma and Dr. Woodruff have disclosed no relevant financial relationships.
 

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

Since the COVID-19 pandemic started more than 3 years ago, the longer-lasting effects of SARS-CoV-2 infection have continued to reveal themselves. Approximately 28% of Americans report having ever experienced post-COVID conditions, such as brain fog, postexertional malaise, and joint pain, and 11% say they are still experiencing these long-term effects. Now, new research is showing that people who have had COVID are more likely to newly develop an autoimmune disease. Exactly why this is happening is less clear, experts say.

Two preprint studies and one study published in a peer-reviewed journal provide strong evidence that patients who have been infected with SARS-CoV-2 are at elevated risk of developing an autoimmune disease. The studies retrospectively reviewed medical records from three countries and compared the incidence of new-onset autoimmune disease among patients who had polymerase chain reaction–confirmed COVID-19 and those who had never been diagnosed with the virus.

A study analyzing the health records of 3.8 million U.S. patients – more than 888,460 with confirmed COVID-19 – found that the COVID-19 group was two to three times as likely to develop various autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, and systemic sclerosis. A U.K. preprint study that included more than 458,000 people with confirmed COVID found that those who had previously been infected with SARS-CoV-2 were 22% more likely to develop an autoimmune disease compared with the control group. In this cohort, the diseases most strongly associated with COVID-19 were type 1 diabetes, inflammatory bowel disease, and psoriasis. A preprint study from German researchers found that COVID-19 patients were almost 43% more likely to develop an autoimmune disease, compared with those who had never been infected. COVID-19 was most strongly linked to vasculitis.
 

These large studies are telling us, “Yes, this link is there, so we have to accept it,” Sonia Sharma, PhD, of the Center for Autoimmunity and Inflammation at the La Jolla (Calif.) Institute for Immunology, told this news organization. But this is not the first time that autoimmune diseases have been linked to previous infections.

La Jolla Institute for Immunology

Researchers have known for decades that Epstein-Barr virus infection is linked to several autoimmune diseases, including systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis. More recent research suggests the virus may activate certain genes associated with these immune disorders. Hepatitis C virus can induce cryoglobulinemia, and infection with cytomegalovirus has been implicated in several autoimmune diseases. Bacterial infections have also been linked to autoimmunity, such as group A streptococcus and rheumatic fever, as well as salmonella and reactive arthritis, to name only a few.

“In a way, this isn’t necessarily a new concept to physicians, particularly rheumatologists,” said Jeffrey A. Sparks, MD, a rheumatologist at Brigham and Women’s Hospital in Boston. “There’s a fine line between appropriately clearing an infection and the body overreacting and setting off a cascade where the immune system is chronically overactive that can manifest as an autoimmune disease,” he told this news organization.

A dysregulated response to infection

It takes the immune system a week or two to develop antigen-specific antibodies to a new pathogen. But for patients with serious infections – in this instance, COVID-19 – that’s time they don’t have. Therefore, the immune system has an alternative pathway, called extrafollicular activation, that creates fast-acting antibodies, explained Matthew Woodruff, PhD, an instructor of immunology and rheumatology at Emory University, Atlanta.

Emory University School of Medicine

The trade-off is that these antibodies are not as specific and can target the body’s own tissues. This dysregulation of antibody selection is generally short lived and fades when more targeted antibodies are produced and take over, but in some cases, this process can lead to high levels of self-targeting antibodies that can harm the body’s organs and tissues. Research also suggests that for patients who experience long COVID, the same autoantibodies that drive the initial immune response are detectable in the body months after infection, though it is not known whether these lingering immune cells cause these longer-lasting symptoms.

“If you have a virus that causes hyperinflammation plus organ damage, that is a recipe for disaster,” Dr. Sharma said. “It’s a recipe for autoantibodies and autoreactive T cells that down the road can attack the body’s own tissues, especially in people whose immune system is trained in such a way to cause self-reactivity,” she added.

This hyperinflammation can result in rare but serious complications, such as multisystem inflammatory syndrome in children and adults, which can occur 2-6 weeks after SARS-CoV-2 infection. But even in these patients with severe illness, organ-specific complications tend to resolve in 6 months with “no significant sequelae 1 year after diagnosis,” according to the Centers for Disease Control and Prevention. And while long COVID can last for a year or longer, data suggest that symptoms do eventually resolve for most people. What is not clear is why acute autoimmunity triggered by COVID-19 can become a chronic condition in certain patients.
 

Predisposition to autoimmunity

P. J. Utz, MD, PhD, professor of immunology and rheumatology at Stanford (Calif.) University, said that people who develop autoimmune disease after SARS-CoV-2 infection may have already been predisposed toward autoimmunity. Especially for autoimmune diseases such as type 1 diabetes and lupus, autoantibodies can appear and circulate in the body for more than a decade in some people before they present with any clinical symptoms. “Their immune system is primed such that if they get infected with something – or they have some other environmental trigger that maybe we don’t know about yet – that is enough to then push them over the edge so that they get full-blown autoimmunity,” he said. What is not known is whether these patients’ conditions would have advanced to true clinical disease had they not been infected, he said.

Steve Fisch

He also noted that the presence of autoantibodies does not necessarily mean someone has autoimmune disease; healthy people can also have autoantibodies, and everyone develops them with age. “My advice would be, ‘Don’t lose sleep over this,’ “ he said.

Dr. Sparks agreed that while these retrospective studies did show an elevated risk of autoimmune disease after COVID-19, that risk appears to be relatively small. “As a practicing rheumatologist, we aren’t seeing a stampede of patients with new-onset rheumatic diseases,” he said. “It’s not like we’re overwhelmed with autoimmune patients, even though almost everyone’s had COVID. So, if there is a risk, it’s very modest.”

Dr. Sparks is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the R. Bruce and Joan M. Mickey Research Scholar Fund, and the Llura Gund Award for Rheumatoid Arthritis Research and Care. Dr. Utz receives research funding from Pfizer. Dr. Sharma and Dr. Woodruff have disclosed no relevant financial relationships.
 

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

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

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

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

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

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

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

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

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

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

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

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

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

SAN DIEGO – Emerging biomarkers and treatments offer more options to diagnose and manage Alzheimer’s disease (AD) and related dementias, but high costs and potentially serious complications mean using them with caution, said a presenter at the annual meeting of the American College of Physicians.

Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.

Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
 

Diagnosis of Alzheimer’s disease

The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.

Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.

“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.

It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
 

Why do we need biomarkers for Alzheimer’s disease?

AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.

“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.

This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta_1–42, phosphorylated tau, and neurofilament light chain.

With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”


 

New and emerging therapies for Alzheimer’s disease

There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.

“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.

Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.

In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”

Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.

Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
 

Looking ahead

When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.

“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.

Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.

SAN DIEGO – Emerging biomarkers and treatments offer more options to diagnose and manage Alzheimer’s disease (AD) and related dementias, but high costs and potentially serious complications mean using them with caution, said a presenter at the annual meeting of the American College of Physicians.

Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.

Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
 

Diagnosis of Alzheimer’s disease

The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.

Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.

“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.

It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
 

Why do we need biomarkers for Alzheimer’s disease?

AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.

“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.

This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta_1–42, phosphorylated tau, and neurofilament light chain.

With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”


 

New and emerging therapies for Alzheimer’s disease

There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.

“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.

Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.

In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”

Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.

Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
 

Looking ahead

When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.

“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.

Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.

SAN DIEGO – Emerging biomarkers and treatments offer more options to diagnose and manage Alzheimer’s disease (AD) and related dementias, but high costs and potentially serious complications mean using them with caution, said a presenter at the annual meeting of the American College of Physicians.

Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.

Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
 

Diagnosis of Alzheimer’s disease

The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.

Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.

“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.

It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
 

Why do we need biomarkers for Alzheimer’s disease?

AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.

“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.

This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta_1–42, phosphorylated tau, and neurofilament light chain.

With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”


 

New and emerging therapies for Alzheimer’s disease

There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.

“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.

Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.

In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”

Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.

Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
 

Looking ahead

When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.

“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.

Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.

High-dose vitamin D in patients with relapsing, remitting multiple sclerosis (RRMS) does not prevent relapse, results from a randomized control trial show. However, at least one expert believes the study’s exclusion criteria may have been too broad.

The investigation of vitamin D to prevent relapse of MS is based on older observational studies of people who already had higher blood levels of vitamin D and were less likely to develop MS, said study investigator Ellen Mowry, MD, Richard T. and Frances W. Johnson professor of neurology, Johns Hopkins University, Baltimore.

Later research where participants were given vitamin D as a therapeutic option for MS “were disappointing as the vitamin D had minimal effect,” she said.

“While we were excited by early data suggesting that vitamin D may have an important impact on MS, it’s essential to follow those linkage studies with the gold standard clinical evidence, which we have here,” Dr. Mowry added.

The findings were published online in eClinicalMedicine.
 

No difference in relapse risk

The multisite, phase 3 Vitamin D to Ameliorate MS (VIDAMS) clinical trial included 172 participants aged 18-50 years with RRMS from 16 neurology clinics between 2012 and 2019.

Inclusion criteria were having one or more clinical episodes of MS in the past year and at least one brain lesion on MRI in the past year or having two or more clinical episodes in the past year. Eligible participants also had to have a score of 4 or less on the Kurtzke Expanded Disability Status Scale.

A total of 83 participants were randomly assigned to receive low-dose vitamin D₃ (600 IU/day) and 89 to receive high-dose vitamin D₃ (5,000 IU/day). Each participant took the vitamin tablet with glatiramer acetate, a synthetic protein that simulates myelin.

Participants were assessed every 12 weeks to measure serum 25(OH)D levels and every 24 weeks for a number of movement and coordination tests, as well as two 3T clinical brain MRIs to check for lesions.

By the trial’s end at 96 weeks, the researchers found no differences in relapse risk between the high- and low-dose groups (P = .57). In addition, there were no differences in MRI outcomes between the two groups.

Dr. Mowry said that more than a few people have asked her if she is disappointed by the results of the VIDAMS trial. “I tell them that no, I’m not – that we are scientists and clinicians, and it is our job to understand what they can do to fight their disease. And if the answer is not vitamin D, that’s OK – we have many other ideas.”

These include helping patients minimize cardiometabolic comorbidities, such as heart disease and blood pressure, she said.
 

Exclusion criteria too broad?

Commenting on the findings, Alberto Ascherio, MD, professor of epidemiology and nutrition at Harvard School of Public Health, Boston, said a key principle of recommending vitamin supplements is that they are, generally speaking, only beneficial for individuals with vitamin deficiencies.

He noted that “patients with vitamin D deficiency (25(OH)D < 15 ng/mL, which corresponds to 37.5 nmol/L) were excluded from this study. Most importantly, the baseline mean 25(OH)D levels were about 30 ng/mL (75 nmol/L), which is considered a sufficient level (the IOM considers 20 ng/mL = 50 nmol/L as an adequate level),” with the level further increasing during the trial due to the supplementation.

“It would be a serious mistake to conclude from this trial (or any of the previous trials) that vitamin D supplementation is not important in MS patients,” Dr. Ascherio said.

He added that many individuals with MS have serum vitamin D levels below 20 ng/mL (50 nmol/L) and that this was the median serum value in studies among individuals with MS in Europe.

“These patients would almost certainly benefit from moderate doses of vitamin D supplements or judicious UV light exposure. Most likely even patients with sufficient but suboptimal 25(OH)D levels (between 20 and 30 ng/mL, or 50 and 75 nmol/L) would benefit from an increase,” he said.

The study was funded by the National Multiple Sclerosis Society, Teva Neuroscience, and the National Institute of Health. Dr. Mowry reported grant support from the National MS Society, Biogen, Genentech, and Teva Neuroscience; honoraria from UpToDate; and consulting fees from BeCare Link.
 

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

High-dose vitamin D in patients with relapsing, remitting multiple sclerosis (RRMS) does not prevent relapse, results from a randomized control trial show. However, at least one expert believes the study’s exclusion criteria may have been too broad.

The investigation of vitamin D to prevent relapse of MS is based on older observational studies of people who already had higher blood levels of vitamin D and were less likely to develop MS, said study investigator Ellen Mowry, MD, Richard T. and Frances W. Johnson professor of neurology, Johns Hopkins University, Baltimore.

Later research where participants were given vitamin D as a therapeutic option for MS “were disappointing as the vitamin D had minimal effect,” she said.

“While we were excited by early data suggesting that vitamin D may have an important impact on MS, it’s essential to follow those linkage studies with the gold standard clinical evidence, which we have here,” Dr. Mowry added.

The findings were published online in eClinicalMedicine.
 

No difference in relapse risk

The multisite, phase 3 Vitamin D to Ameliorate MS (VIDAMS) clinical trial included 172 participants aged 18-50 years with RRMS from 16 neurology clinics between 2012 and 2019.

Inclusion criteria were having one or more clinical episodes of MS in the past year and at least one brain lesion on MRI in the past year or having two or more clinical episodes in the past year. Eligible participants also had to have a score of 4 or less on the Kurtzke Expanded Disability Status Scale.

A total of 83 participants were randomly assigned to receive low-dose vitamin D₃ (600 IU/day) and 89 to receive high-dose vitamin D₃ (5,000 IU/day). Each participant took the vitamin tablet with glatiramer acetate, a synthetic protein that simulates myelin.

Participants were assessed every 12 weeks to measure serum 25(OH)D levels and every 24 weeks for a number of movement and coordination tests, as well as two 3T clinical brain MRIs to check for lesions.

By the trial’s end at 96 weeks, the researchers found no differences in relapse risk between the high- and low-dose groups (P = .57). In addition, there were no differences in MRI outcomes between the two groups.

Dr. Mowry said that more than a few people have asked her if she is disappointed by the results of the VIDAMS trial. “I tell them that no, I’m not – that we are scientists and clinicians, and it is our job to understand what they can do to fight their disease. And if the answer is not vitamin D, that’s OK – we have many other ideas.”

These include helping patients minimize cardiometabolic comorbidities, such as heart disease and blood pressure, she said.
 

Exclusion criteria too broad?

Commenting on the findings, Alberto Ascherio, MD, professor of epidemiology and nutrition at Harvard School of Public Health, Boston, said a key principle of recommending vitamin supplements is that they are, generally speaking, only beneficial for individuals with vitamin deficiencies.

He noted that “patients with vitamin D deficiency (25(OH)D < 15 ng/mL, which corresponds to 37.5 nmol/L) were excluded from this study. Most importantly, the baseline mean 25(OH)D levels were about 30 ng/mL (75 nmol/L), which is considered a sufficient level (the IOM considers 20 ng/mL = 50 nmol/L as an adequate level),” with the level further increasing during the trial due to the supplementation.

“It would be a serious mistake to conclude from this trial (or any of the previous trials) that vitamin D supplementation is not important in MS patients,” Dr. Ascherio said.

He added that many individuals with MS have serum vitamin D levels below 20 ng/mL (50 nmol/L) and that this was the median serum value in studies among individuals with MS in Europe.

“These patients would almost certainly benefit from moderate doses of vitamin D supplements or judicious UV light exposure. Most likely even patients with sufficient but suboptimal 25(OH)D levels (between 20 and 30 ng/mL, or 50 and 75 nmol/L) would benefit from an increase,” he said.

The study was funded by the National Multiple Sclerosis Society, Teva Neuroscience, and the National Institute of Health. Dr. Mowry reported grant support from the National MS Society, Biogen, Genentech, and Teva Neuroscience; honoraria from UpToDate; and consulting fees from BeCare Link.
 

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

High-dose vitamin D in patients with relapsing, remitting multiple sclerosis (RRMS) does not prevent relapse, results from a randomized control trial show. However, at least one expert believes the study’s exclusion criteria may have been too broad.

The investigation of vitamin D to prevent relapse of MS is based on older observational studies of people who already had higher blood levels of vitamin D and were less likely to develop MS, said study investigator Ellen Mowry, MD, Richard T. and Frances W. Johnson professor of neurology, Johns Hopkins University, Baltimore.

Later research where participants were given vitamin D as a therapeutic option for MS “were disappointing as the vitamin D had minimal effect,” she said.

“While we were excited by early data suggesting that vitamin D may have an important impact on MS, it’s essential to follow those linkage studies with the gold standard clinical evidence, which we have here,” Dr. Mowry added.

The findings were published online in eClinicalMedicine.
 

No difference in relapse risk

The multisite, phase 3 Vitamin D to Ameliorate MS (VIDAMS) clinical trial included 172 participants aged 18-50 years with RRMS from 16 neurology clinics between 2012 and 2019.

Inclusion criteria were having one or more clinical episodes of MS in the past year and at least one brain lesion on MRI in the past year or having two or more clinical episodes in the past year. Eligible participants also had to have a score of 4 or less on the Kurtzke Expanded Disability Status Scale.

A total of 83 participants were randomly assigned to receive low-dose vitamin D₃ (600 IU/day) and 89 to receive high-dose vitamin D₃ (5,000 IU/day). Each participant took the vitamin tablet with glatiramer acetate, a synthetic protein that simulates myelin.

Participants were assessed every 12 weeks to measure serum 25(OH)D levels and every 24 weeks for a number of movement and coordination tests, as well as two 3T clinical brain MRIs to check for lesions.

By the trial’s end at 96 weeks, the researchers found no differences in relapse risk between the high- and low-dose groups (P = .57). In addition, there were no differences in MRI outcomes between the two groups.

Dr. Mowry said that more than a few people have asked her if she is disappointed by the results of the VIDAMS trial. “I tell them that no, I’m not – that we are scientists and clinicians, and it is our job to understand what they can do to fight their disease. And if the answer is not vitamin D, that’s OK – we have many other ideas.”

These include helping patients minimize cardiometabolic comorbidities, such as heart disease and blood pressure, she said.
 

Exclusion criteria too broad?

Commenting on the findings, Alberto Ascherio, MD, professor of epidemiology and nutrition at Harvard School of Public Health, Boston, said a key principle of recommending vitamin supplements is that they are, generally speaking, only beneficial for individuals with vitamin deficiencies.

He noted that “patients with vitamin D deficiency (25(OH)D < 15 ng/mL, which corresponds to 37.5 nmol/L) were excluded from this study. Most importantly, the baseline mean 25(OH)D levels were about 30 ng/mL (75 nmol/L), which is considered a sufficient level (the IOM considers 20 ng/mL = 50 nmol/L as an adequate level),” with the level further increasing during the trial due to the supplementation.

“It would be a serious mistake to conclude from this trial (or any of the previous trials) that vitamin D supplementation is not important in MS patients,” Dr. Ascherio said.

He added that many individuals with MS have serum vitamin D levels below 20 ng/mL (50 nmol/L) and that this was the median serum value in studies among individuals with MS in Europe.

“These patients would almost certainly benefit from moderate doses of vitamin D supplements or judicious UV light exposure. Most likely even patients with sufficient but suboptimal 25(OH)D levels (between 20 and 30 ng/mL, or 50 and 75 nmol/L) would benefit from an increase,” he said.

The study was funded by the National Multiple Sclerosis Society, Teva Neuroscience, and the National Institute of Health. Dr. Mowry reported grant support from the National MS Society, Biogen, Genentech, and Teva Neuroscience; honoraria from UpToDate; and consulting fees from BeCare Link.
 

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

BOSTON – In patients with primary progressive multiple sclerosis (PPMS), machine learning can predict progression with reasonable accuracy on the basis of the blood transcriptome, according to a proof-of-concept study presented at the 2023 annual meeting of the American Academy of Neurology.

The accuracy was sufficient for the lead author of the study, Michael Gurevich, PhD, head of the Neuroimmunological Laboratory in the Multiple Sclerosis Center of Sheba Medical Center in Ramat Gan, Israel, to say that it is already clinically viable even as the tool is still evolving.

“We are looking at larger sample sizes to improve the accuracy and generalizability of our model, but we can use it now to inform treatment decisions,” Dr. Gurevich said.

In patients with PPMS who have a highly variable course, the model predicts disability progression with an accuracy of approximately 70%, according to the data he presented. He said he believes this is already at a level that it is meaningful for a risk-to-benefit calculation when considering treatment.
 

Machine learning analyzes blood samples

The study pursues the concept that the genetic information governing highly complex pathophysiological processes is contained in RNA sequencing. While multimodal omics generate data that are too complex for human pattern recognition, there is a growing body of evidence, including that provided by this study, to suggest that machine learning can employ these same RNA profiles and predict disease activity.

In this study, blood samples were collected from patients who participated in the phase 3 clinical ORATORIO trial that led to approval of ocrelizumab for PPMS. Analyses were conducted only on blood samples from those randomized to placebo, who, like those in the active treatment arm, were evaluated at baseline and at 12-week intervals for more than 2 years.

After development of a prediction model and creation of a training dataset, machine learning was applied to the deep sequencing of the blood transcriptome data for predicting two endpoints. One was disease progression at 120 weeks defined as a 1 point or more increase in the Expanded Disability Status Scale (EDSS) among patients with confirmed disability progression for at least 12 weeks (12W-CDP).

The other was change at 120 weeks in brain morphology defined as a 1% or more reduction in brain volume (120W PBVC).

The peripheral blood samples were subjected to RNA sequencing analysis (RNA-Seq) using commercially available analysis techniques. The prediction model for the disability endpoint was based on data generated from the blood transcriptome of 135 patients of which 53 (39%) met the endpoint at 120 weeks. The prediction model for the change in brain morphology was based on the blood transcriptome from 94 patients of which 63 (67%) met the endpoint.

On the basis of 10 genes that most significantly differentiated those who met the disability endpoint from those who did not, machine recognition of patterns after training was able to predict correctly the outcome in 70.9%. The sensitivity was 55.6%, and the specificity was 79.0%. The positive and negative predictive values were 59.0% and 76.8%, respectively.

On the basis of the 12 genes the most significantly differentiated those that reached the 120W PBVC endpoint from those who did not, machine learning resulted in a correct prediction of outcomes in 75.1%. The sensitivity was 78.1%, and the specificity was 66.7%. The positive and negative predictive values were 83.3% and 58.8%, respectively

Typical of a PPMS trial population, the mean age of the patients was about 44 years. The mean disease duration was about 6 years. The majority of patients had an EDSS score below 5.5 at baseline. The baseline T2 lesion number was approximately 50.

If further validated by others and in larger studies, this type of information could play a valuable role in PPMS management, according to Dr. Gurevich. Now that there is an approved therapy for PPMS, it can help clinicians and patients determine whether to initiate treatment early to address the high risk of progression or delay treatment that might not be needed.
 

A useful tool

In the field of MS, most of the studies performed with machine learning have focused on the analysis of radiological images. However, others are now looking at the blood transcriptome as a potential path to better classifying a highly complex disease with substantial heterogeneity in presentation, progression, and outcome.

For example, machine learning of the blood transcriptome has also shown high accuracy in the diagnosis and classification of MS in patients with clinically isolated syndrome (CIS). One study, published in Cell Reports Medicine, was led by Cinthia Farina, PhD, Institute of Experimental Neurology, IRCCS San Raffaele Scientific Institute, Milan.

Although she did not hear the presentation by Dr. Gurevich, Dr. Farina is enthusiastic about the potential for machine learning to help manage MS through the analysis of the blood transcriptome. “I do believe that transcriptomics in peripheral immune cells may become a useful tool for MS diagnosis and prognosis,” she said.

In her own study, in which machine learning algorithms were developed and trained on the basis of peripheral blood from patients with CIS, the tool proved accurate with a strong potential for being incorporated into routine clinical management.

“Machine learning applied to the blood transcriptomes was extremely efficient with a 95.6% accuracy in discriminating PPMS from RRMS [relapsing-remitting] MS,” she reported.

Dr. Gurevich has no potential financial conflicts of interest to report. He reported funding for the study was provided by Roche. Dr. Farina reports financial relationships with Merck-Serono, Novartis, and Teva.

BOSTON – In patients with primary progressive multiple sclerosis (PPMS), machine learning can predict progression with reasonable accuracy on the basis of the blood transcriptome, according to a proof-of-concept study presented at the 2023 annual meeting of the American Academy of Neurology.

The accuracy was sufficient for the lead author of the study, Michael Gurevich, PhD, head of the Neuroimmunological Laboratory in the Multiple Sclerosis Center of Sheba Medical Center in Ramat Gan, Israel, to say that it is already clinically viable even as the tool is still evolving.

“We are looking at larger sample sizes to improve the accuracy and generalizability of our model, but we can use it now to inform treatment decisions,” Dr. Gurevich said.

In patients with PPMS who have a highly variable course, the model predicts disability progression with an accuracy of approximately 70%, according to the data he presented. He said he believes this is already at a level that it is meaningful for a risk-to-benefit calculation when considering treatment.
 

Machine learning analyzes blood samples

The study pursues the concept that the genetic information governing highly complex pathophysiological processes is contained in RNA sequencing. While multimodal omics generate data that are too complex for human pattern recognition, there is a growing body of evidence, including that provided by this study, to suggest that machine learning can employ these same RNA profiles and predict disease activity.

In this study, blood samples were collected from patients who participated in the phase 3 clinical ORATORIO trial that led to approval of ocrelizumab for PPMS. Analyses were conducted only on blood samples from those randomized to placebo, who, like those in the active treatment arm, were evaluated at baseline and at 12-week intervals for more than 2 years.

After development of a prediction model and creation of a training dataset, machine learning was applied to the deep sequencing of the blood transcriptome data for predicting two endpoints. One was disease progression at 120 weeks defined as a 1 point or more increase in the Expanded Disability Status Scale (EDSS) among patients with confirmed disability progression for at least 12 weeks (12W-CDP).

The other was change at 120 weeks in brain morphology defined as a 1% or more reduction in brain volume (120W PBVC).

The peripheral blood samples were subjected to RNA sequencing analysis (RNA-Seq) using commercially available analysis techniques. The prediction model for the disability endpoint was based on data generated from the blood transcriptome of 135 patients of which 53 (39%) met the endpoint at 120 weeks. The prediction model for the change in brain morphology was based on the blood transcriptome from 94 patients of which 63 (67%) met the endpoint.

On the basis of 10 genes that most significantly differentiated those who met the disability endpoint from those who did not, machine recognition of patterns after training was able to predict correctly the outcome in 70.9%. The sensitivity was 55.6%, and the specificity was 79.0%. The positive and negative predictive values were 59.0% and 76.8%, respectively.

On the basis of the 12 genes the most significantly differentiated those that reached the 120W PBVC endpoint from those who did not, machine learning resulted in a correct prediction of outcomes in 75.1%. The sensitivity was 78.1%, and the specificity was 66.7%. The positive and negative predictive values were 83.3% and 58.8%, respectively

Typical of a PPMS trial population, the mean age of the patients was about 44 years. The mean disease duration was about 6 years. The majority of patients had an EDSS score below 5.5 at baseline. The baseline T2 lesion number was approximately 50.

If further validated by others and in larger studies, this type of information could play a valuable role in PPMS management, according to Dr. Gurevich. Now that there is an approved therapy for PPMS, it can help clinicians and patients determine whether to initiate treatment early to address the high risk of progression or delay treatment that might not be needed.
 

A useful tool

In the field of MS, most of the studies performed with machine learning have focused on the analysis of radiological images. However, others are now looking at the blood transcriptome as a potential path to better classifying a highly complex disease with substantial heterogeneity in presentation, progression, and outcome.

For example, machine learning of the blood transcriptome has also shown high accuracy in the diagnosis and classification of MS in patients with clinically isolated syndrome (CIS). One study, published in Cell Reports Medicine, was led by Cinthia Farina, PhD, Institute of Experimental Neurology, IRCCS San Raffaele Scientific Institute, Milan.

Although she did not hear the presentation by Dr. Gurevich, Dr. Farina is enthusiastic about the potential for machine learning to help manage MS through the analysis of the blood transcriptome. “I do believe that transcriptomics in peripheral immune cells may become a useful tool for MS diagnosis and prognosis,” she said.

In her own study, in which machine learning algorithms were developed and trained on the basis of peripheral blood from patients with CIS, the tool proved accurate with a strong potential for being incorporated into routine clinical management.

“Machine learning applied to the blood transcriptomes was extremely efficient with a 95.6% accuracy in discriminating PPMS from RRMS [relapsing-remitting] MS,” she reported.

Dr. Gurevich has no potential financial conflicts of interest to report. He reported funding for the study was provided by Roche. Dr. Farina reports financial relationships with Merck-Serono, Novartis, and Teva.

BOSTON – In patients with primary progressive multiple sclerosis (PPMS), machine learning can predict progression with reasonable accuracy on the basis of the blood transcriptome, according to a proof-of-concept study presented at the 2023 annual meeting of the American Academy of Neurology.

The accuracy was sufficient for the lead author of the study, Michael Gurevich, PhD, head of the Neuroimmunological Laboratory in the Multiple Sclerosis Center of Sheba Medical Center in Ramat Gan, Israel, to say that it is already clinically viable even as the tool is still evolving.

“We are looking at larger sample sizes to improve the accuracy and generalizability of our model, but we can use it now to inform treatment decisions,” Dr. Gurevich said.

In patients with PPMS who have a highly variable course, the model predicts disability progression with an accuracy of approximately 70%, according to the data he presented. He said he believes this is already at a level that it is meaningful for a risk-to-benefit calculation when considering treatment.
 

Machine learning analyzes blood samples

The study pursues the concept that the genetic information governing highly complex pathophysiological processes is contained in RNA sequencing. While multimodal omics generate data that are too complex for human pattern recognition, there is a growing body of evidence, including that provided by this study, to suggest that machine learning can employ these same RNA profiles and predict disease activity.

In this study, blood samples were collected from patients who participated in the phase 3 clinical ORATORIO trial that led to approval of ocrelizumab for PPMS. Analyses were conducted only on blood samples from those randomized to placebo, who, like those in the active treatment arm, were evaluated at baseline and at 12-week intervals for more than 2 years.

After development of a prediction model and creation of a training dataset, machine learning was applied to the deep sequencing of the blood transcriptome data for predicting two endpoints. One was disease progression at 120 weeks defined as a 1 point or more increase in the Expanded Disability Status Scale (EDSS) among patients with confirmed disability progression for at least 12 weeks (12W-CDP).

The other was change at 120 weeks in brain morphology defined as a 1% or more reduction in brain volume (120W PBVC).

The peripheral blood samples were subjected to RNA sequencing analysis (RNA-Seq) using commercially available analysis techniques. The prediction model for the disability endpoint was based on data generated from the blood transcriptome of 135 patients of which 53 (39%) met the endpoint at 120 weeks. The prediction model for the change in brain morphology was based on the blood transcriptome from 94 patients of which 63 (67%) met the endpoint.

On the basis of 10 genes that most significantly differentiated those who met the disability endpoint from those who did not, machine recognition of patterns after training was able to predict correctly the outcome in 70.9%. The sensitivity was 55.6%, and the specificity was 79.0%. The positive and negative predictive values were 59.0% and 76.8%, respectively.

On the basis of the 12 genes the most significantly differentiated those that reached the 120W PBVC endpoint from those who did not, machine learning resulted in a correct prediction of outcomes in 75.1%. The sensitivity was 78.1%, and the specificity was 66.7%. The positive and negative predictive values were 83.3% and 58.8%, respectively

Typical of a PPMS trial population, the mean age of the patients was about 44 years. The mean disease duration was about 6 years. The majority of patients had an EDSS score below 5.5 at baseline. The baseline T2 lesion number was approximately 50.

If further validated by others and in larger studies, this type of information could play a valuable role in PPMS management, according to Dr. Gurevich. Now that there is an approved therapy for PPMS, it can help clinicians and patients determine whether to initiate treatment early to address the high risk of progression or delay treatment that might not be needed.
 

A useful tool

In the field of MS, most of the studies performed with machine learning have focused on the analysis of radiological images. However, others are now looking at the blood transcriptome as a potential path to better classifying a highly complex disease with substantial heterogeneity in presentation, progression, and outcome.

For example, machine learning of the blood transcriptome has also shown high accuracy in the diagnosis and classification of MS in patients with clinically isolated syndrome (CIS). One study, published in Cell Reports Medicine, was led by Cinthia Farina, PhD, Institute of Experimental Neurology, IRCCS San Raffaele Scientific Institute, Milan.

Although she did not hear the presentation by Dr. Gurevich, Dr. Farina is enthusiastic about the potential for machine learning to help manage MS through the analysis of the blood transcriptome. “I do believe that transcriptomics in peripheral immune cells may become a useful tool for MS diagnosis and prognosis,” she said.

In her own study, in which machine learning algorithms were developed and trained on the basis of peripheral blood from patients with CIS, the tool proved accurate with a strong potential for being incorporated into routine clinical management.

“Machine learning applied to the blood transcriptomes was extremely efficient with a 95.6% accuracy in discriminating PPMS from RRMS [relapsing-remitting] MS,” she reported.

Dr. Gurevich has no potential financial conflicts of interest to report. He reported funding for the study was provided by Roche. Dr. Farina reports financial relationships with Merck-Serono, Novartis, and Teva.

Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.

A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.

“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.

The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.

Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.

The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).

“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
 

Implications for clinicians

Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.

Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.

Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.

Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.

“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.

Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.

Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.

A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.

“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.

The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.

Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.

The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).

“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
 

Implications for clinicians

Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.

Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.

Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.

Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.

“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.

Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.

Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.

A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.

“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.

The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.

Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.

The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).

“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
 

Implications for clinicians

Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.

Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.

Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.

Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.

“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.

Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.

BOSTON – Noninvasive tests performed in midlife may help identify people who are at risk of late-onset epilepsy, a new study suggests. New data from the Framingham Heart Study show those who scored better on a neurocognitive test that measures executive function were 75% less likely to develop late-onset epilepsy.

An analysis of MRI revealed that those with higher cortical volumes also had a lower risk of epilepsy later in life, while those with higher white matter hyperintensities had an increased risk.

The study could help identify at-risk individuals years before symptoms of epilepsy appear.

“We present possible markers that could potentially identify patients at risk for developing late-onset epilepsy, even in the preclinical phase and before the clinical manifestation of conditions like stroke and dementia that are known now to be linked with the condition,” said lead investigator Maria Stefanidou, MD, assistant professor of neurology at Boston University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Protection against late-onset epilepsy?

Hypertension and stroke are known risk factors for late-onset epilepsy. Dementia is also a known risk factor. But in about 30% of cases, the cause of epilepsy in older individuals is unknown.

For this study, investigators analyzed data from the offspring cohort of the Framingham Heart Study. Participants were at least 45 years old; underwent neuropsychological evaluation and brain MRI; and had no prior history of stroke, dementia, or epilepsy. Cognitive measures included Visual Reproductions Delayed Recall, Logical Memory Delayed Recall, Similarities, Trail Making B-A (TrB-TrA), and the Hooper Visual Organization Test.

Participants also underwent an MRI to measure total cerebral brain volume, cortical gray matter volume, white matter hyperintensities, and hippocampal volume.

After a mean follow-up of 13.5 years, late-onset epilepsy was diagnosed in 31 of participants who underwent neuropsychological testing (n = 2,349) and in 27 of those who underwent MRI (n = 2,056).

Better performance on the TrB-TrA test (a measure of executive function, processing speed, and occult vascular injury) was associated with a reduced risk of late-onset epilepsy (adjusted hazard ratio, 0.25; P = .011).

The findings held even after adjusting for age, sex, educational level, and known risk factors for late-onset epilepsy, such as hypertension (aHR, 0.30; P = .0401).

Higher white matter hyperintensities, a measure of occult vascular injury, was associated with increased epilepsy risk (aHR, 1.5; P = .042) when adjusted only for age, sex, and education, but was no longer significant after adjusting for hypertension and other risk factors (aHR, 1.47; P = .065).

The analysis also revealed that participants with a higher cortical gray matter volume had a lower risk for late-onset epilepsy (aHR, 0.73; P = .001).

“There is increasing literature supporting that late-onset epilepsy may be secondary to accumulative occult cerebrovascular and neurodegenerative processes that occur during aging,” Dr. Stefanidou said. “Our findings likely reflect that a lesser degree of occult vascular brain injury in midlife may be protective against late-onset epilepsy.”

However, the epidemiological study points to association, not causation, Dr. Stefanidou cautions.

“Further studies will be needed to study our observations in the clinical setting,” she said.
 

‘Intriguing’ findings

Commenting on the findings, Joseph Sirven, MD, a neurologist at the Mayo Clinic in Jacksonville, Fla., said the findings are “intriguing,” but also raise some questions. “Late-onset epilepsy remains an issue for many and it’s common,” said Dr. Sirven, who has patients with late-onset epilepsy.

Dr. Sirven was particularly interested in the findings on white matter hyperintensities. “Hippocampal volumes have been used but not so much cortical volumes,” he said. “I would like to know more about how white matter changes suggest pathology that would explain epilepsy.”

Study funding was not disclosed. Dr. Stefanidou and Dr. Sirven report no relevant financial relationships.

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

BOSTON – Noninvasive tests performed in midlife may help identify people who are at risk of late-onset epilepsy, a new study suggests. New data from the Framingham Heart Study show those who scored better on a neurocognitive test that measures executive function were 75% less likely to develop late-onset epilepsy.

An analysis of MRI revealed that those with higher cortical volumes also had a lower risk of epilepsy later in life, while those with higher white matter hyperintensities had an increased risk.

The study could help identify at-risk individuals years before symptoms of epilepsy appear.

“We present possible markers that could potentially identify patients at risk for developing late-onset epilepsy, even in the preclinical phase and before the clinical manifestation of conditions like stroke and dementia that are known now to be linked with the condition,” said lead investigator Maria Stefanidou, MD, assistant professor of neurology at Boston University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Protection against late-onset epilepsy?

Hypertension and stroke are known risk factors for late-onset epilepsy. Dementia is also a known risk factor. But in about 30% of cases, the cause of epilepsy in older individuals is unknown.

For this study, investigators analyzed data from the offspring cohort of the Framingham Heart Study. Participants were at least 45 years old; underwent neuropsychological evaluation and brain MRI; and had no prior history of stroke, dementia, or epilepsy. Cognitive measures included Visual Reproductions Delayed Recall, Logical Memory Delayed Recall, Similarities, Trail Making B-A (TrB-TrA), and the Hooper Visual Organization Test.

Participants also underwent an MRI to measure total cerebral brain volume, cortical gray matter volume, white matter hyperintensities, and hippocampal volume.

After a mean follow-up of 13.5 years, late-onset epilepsy was diagnosed in 31 of participants who underwent neuropsychological testing (n = 2,349) and in 27 of those who underwent MRI (n = 2,056).

Better performance on the TrB-TrA test (a measure of executive function, processing speed, and occult vascular injury) was associated with a reduced risk of late-onset epilepsy (adjusted hazard ratio, 0.25; P = .011).

The findings held even after adjusting for age, sex, educational level, and known risk factors for late-onset epilepsy, such as hypertension (aHR, 0.30; P = .0401).

Higher white matter hyperintensities, a measure of occult vascular injury, was associated with increased epilepsy risk (aHR, 1.5; P = .042) when adjusted only for age, sex, and education, but was no longer significant after adjusting for hypertension and other risk factors (aHR, 1.47; P = .065).

The analysis also revealed that participants with a higher cortical gray matter volume had a lower risk for late-onset epilepsy (aHR, 0.73; P = .001).

“There is increasing literature supporting that late-onset epilepsy may be secondary to accumulative occult cerebrovascular and neurodegenerative processes that occur during aging,” Dr. Stefanidou said. “Our findings likely reflect that a lesser degree of occult vascular brain injury in midlife may be protective against late-onset epilepsy.”

However, the epidemiological study points to association, not causation, Dr. Stefanidou cautions.

“Further studies will be needed to study our observations in the clinical setting,” she said.
 

‘Intriguing’ findings

Commenting on the findings, Joseph Sirven, MD, a neurologist at the Mayo Clinic in Jacksonville, Fla., said the findings are “intriguing,” but also raise some questions. “Late-onset epilepsy remains an issue for many and it’s common,” said Dr. Sirven, who has patients with late-onset epilepsy.

Dr. Sirven was particularly interested in the findings on white matter hyperintensities. “Hippocampal volumes have been used but not so much cortical volumes,” he said. “I would like to know more about how white matter changes suggest pathology that would explain epilepsy.”

Study funding was not disclosed. Dr. Stefanidou and Dr. Sirven report no relevant financial relationships.

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

BOSTON – Noninvasive tests performed in midlife may help identify people who are at risk of late-onset epilepsy, a new study suggests. New data from the Framingham Heart Study show those who scored better on a neurocognitive test that measures executive function were 75% less likely to develop late-onset epilepsy.

An analysis of MRI revealed that those with higher cortical volumes also had a lower risk of epilepsy later in life, while those with higher white matter hyperintensities had an increased risk.

The study could help identify at-risk individuals years before symptoms of epilepsy appear.

“We present possible markers that could potentially identify patients at risk for developing late-onset epilepsy, even in the preclinical phase and before the clinical manifestation of conditions like stroke and dementia that are known now to be linked with the condition,” said lead investigator Maria Stefanidou, MD, assistant professor of neurology at Boston University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Protection against late-onset epilepsy?

Hypertension and stroke are known risk factors for late-onset epilepsy. Dementia is also a known risk factor. But in about 30% of cases, the cause of epilepsy in older individuals is unknown.

For this study, investigators analyzed data from the offspring cohort of the Framingham Heart Study. Participants were at least 45 years old; underwent neuropsychological evaluation and brain MRI; and had no prior history of stroke, dementia, or epilepsy. Cognitive measures included Visual Reproductions Delayed Recall, Logical Memory Delayed Recall, Similarities, Trail Making B-A (TrB-TrA), and the Hooper Visual Organization Test.

Participants also underwent an MRI to measure total cerebral brain volume, cortical gray matter volume, white matter hyperintensities, and hippocampal volume.

After a mean follow-up of 13.5 years, late-onset epilepsy was diagnosed in 31 of participants who underwent neuropsychological testing (n = 2,349) and in 27 of those who underwent MRI (n = 2,056).

Better performance on the TrB-TrA test (a measure of executive function, processing speed, and occult vascular injury) was associated with a reduced risk of late-onset epilepsy (adjusted hazard ratio, 0.25; P = .011).

The findings held even after adjusting for age, sex, educational level, and known risk factors for late-onset epilepsy, such as hypertension (aHR, 0.30; P = .0401).

Higher white matter hyperintensities, a measure of occult vascular injury, was associated with increased epilepsy risk (aHR, 1.5; P = .042) when adjusted only for age, sex, and education, but was no longer significant after adjusting for hypertension and other risk factors (aHR, 1.47; P = .065).

The analysis also revealed that participants with a higher cortical gray matter volume had a lower risk for late-onset epilepsy (aHR, 0.73; P = .001).

“There is increasing literature supporting that late-onset epilepsy may be secondary to accumulative occult cerebrovascular and neurodegenerative processes that occur during aging,” Dr. Stefanidou said. “Our findings likely reflect that a lesser degree of occult vascular brain injury in midlife may be protective against late-onset epilepsy.”

However, the epidemiological study points to association, not causation, Dr. Stefanidou cautions.

“Further studies will be needed to study our observations in the clinical setting,” she said.
 

‘Intriguing’ findings

Commenting on the findings, Joseph Sirven, MD, a neurologist at the Mayo Clinic in Jacksonville, Fla., said the findings are “intriguing,” but also raise some questions. “Late-onset epilepsy remains an issue for many and it’s common,” said Dr. Sirven, who has patients with late-onset epilepsy.

Dr. Sirven was particularly interested in the findings on white matter hyperintensities. “Hippocampal volumes have been used but not so much cortical volumes,” he said. “I would like to know more about how white matter changes suggest pathology that would explain epilepsy.”

Study funding was not disclosed. Dr. Stefanidou and Dr. Sirven report no relevant financial relationships.

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