Journal of Clinical Outcomes Management

More than 600,000 Americans have lost Medicaid coverage since pandemic protections ended on April 1. And a KFF Health News analysis of state data shows the vast majority were removed from state rolls for not completing paperwork.

Under normal circumstances, states review their Medicaid enrollment lists regularly to ensure every recipient qualifies for coverage. But because of a nationwide pause in those reviews during the pandemic, the health insurance program for low-income and disabled Americans kept people covered even if they no longer qualified.

Now, in what’s known as the Medicaid unwinding, states are combing through rolls and deciding who stays and who goes. People who are no longer eligible or don’t complete paperwork in time will be dropped.

The overwhelming majority of people who have lost coverage in most states were dropped because of technicalities, not because state officials determined they no longer meet Medicaid income limits. Four out of every five people dropped so far either never returned the paperwork or omitted required documents, according to a KFF Health News analysis of data from 11 states that provided details on recent cancellations. Now, lawmakers and advocates are expressing alarm over the volume of people losing coverage and, in some states, calling to pause the process.

KFF Health News sought data from the 19 states that started cancellations by May 1. Based on records from 14 states that provided detailed numbers, either in response to a public records request or by posting online, 36% of people whose eligibility was reviewed have been disenrolled.

In Indiana, 53,000 residents lost coverage in the first month of the unwinding, 89% for procedural reasons like not returning renewal forms. State Rep. Ed Clere, a Republican, expressed dismay at those “staggering numbers” in a May 24 Medicaid advisory group meeting, repeatedly questioning state officials about forms mailed to out-of-date addresses and urging them to give people more than 2 weeks’ notice before canceling their coverage.

Rep. Clere warned that the cancellations set in motion an avoidable revolving door. Some people dropped from Medicaid will have to forgo filling prescriptions and cancel doctor visits because they can’t afford care. Months down the line, after untreated chronic illnesses spiral out of control, they’ll end up in the emergency room where social workers will need to again help them join the program, he said.

Before the unwinding, more than one in four Americans – 93 million – were covered by Medicaid or CHIP, the Children’s Health Insurance Program, according to KFF Health News’ analysis of the latest enrollment data. Half of all kids are covered by the programs.

About 15 million people will be dropped over the next year as states review participants’ eligibility in monthly tranches.

Most people will find health coverage through new jobs or qualify for subsidized plans through the Affordable Care Act. But millions of others, including many children, will become uninsured and unable to afford basic prescriptions or preventive care. The uninsured rate among those under 65 is projected to rise from a historical low of 8.3% today to 9.3% next year, according to the Congressional Budget Office.

Because each state is handling the unwinding differently, the share of enrollees dropped in the first weeks varies widely.

Several states are first reviewing people officials believe are no longer eligible or who haven’t recently used their insurance. High cancellation rates in those states should level out as the agencies move on to people who likely still qualify.

In Utah, nearly 56% of people included in early reviews were dropped. In New Hampshire, 44% received cancellation letters within the first 2 months – almost all for procedural reasons, like not returning paperwork.

But New Hampshire officials found that thousands of people who didn’t fill out the forms indeed earn too much to qualify, according to Henry Lipman, the state’s Medicaid director. They would have been denied anyway. Even so, more people than he expected are not returning renewal forms. “That tells us that we need to change up our strategy,” said Mr. Lipman.

In other states, like Virginia and Nebraska, which aren’t prioritizing renewals by likely eligibility, about 90% have been renewed.

Because of the 3-year pause in renewals, many people on Medicaid have never been through the process or aren’t aware they may need to fill out long verification forms, as a recent KFF poll found. Some people moved and didn’t update their contact information.

And while agencies are required to assist enrollees who don’t speak English well, many are sending the forms in only a few common languages.

Tens of thousands of children are losing coverage, as researchers have warned, even though some may still qualify for Medicaid or CHIP. In its first month of reviews, South Dakota ended coverage for 10% of all Medicaid and CHIP enrollees in the state. More than half of them were children. In Arkansas, about 40% were kids.

Many parents don’t know that limits on household income are significantly higher for children than adults. Parents should fill out renewal forms even if they don’t qualify themselves, said Joan Alker, executive director of the Georgetown University Center for Children and Families, Washington.

New Hampshire has moved most families with children to the end of the review process. Mr. Lipman said his biggest worry is that a child will end up uninsured. Florida also planned to push kids with serious health conditions and other vulnerable groups to the end of the review line.

But according to Miriam Harmatz, advocacy director and founder of the Florida Health Justice Project, state officials sent cancellation letters to several clients with disabled children who probably still qualify. She’s helping those families appeal.

Nearly 250,000 Floridians reviewed in the first month of the unwinding lost coverage, 82% of them for reasons like incomplete paperwork, the state reported to federal authorities. House Democrats from the state petitioned Republican Gov. Ron DeSantis to pause the unwinding.

Advocacy coalitions in both Florida and Arkansas also have called for investigations into the review process and a pause on cancellations.

The state is contacting enrollees by phone, email, and text, and continues to process late applications, said Tori Cuddy, a spokesperson for the Florida Department of Children and Families. Ms. Cuddy did not respond to questions about issues raised in the petitions.

Federal officials are investigating those complaints and any other problems that emerge, said Dan Tsai, director of the Center for Medicaid & CHIP Services. “If we find that the rules are not being followed, we will take action.”

His agency has directed states to automatically reenroll residents using data from other government programs like unemployment and food assistance when possible. Anyone who can’t be approved through that process must act quickly.

“For the past 3 years, people have been told to ignore the mail around this, that the renewal was not going to lead to a termination.” Suddenly that mail matters, he said.

Federal law requires states to tell people why they’re losing Medicaid coverage and how to appeal the decision.

Ms. Harmatz said some cancellation notices in Florida are vague and could violate due process rules. Letters that she’s seen say “your Medicaid for this period is ending” rather than providing a specific reason for disenrollment, like having too high an income or incomplete paperwork.
If a person requests a hearing before their cancellation takes effect, they can stay covered during the appeals process. Even after being disenrolled, many still have a 90-day window to restore coverage.

In New Hampshire, 13% of people deemed ineligible in the first month have asked for extra time to provide the necessary records. “If you’re eligible for Medicaid, we don’t want you to lose it,” said Mr. Lipman.

Rep. Clere pushed Indiana’s Medicaid officials during the May meeting to immediately make changes to avoid people unnecessarily becoming uninsured. One official responded that they’ll learn and improve over time.

“I’m just concerned that we’re going to be ‘learning’ as a result of people losing coverage,” Rep. Clere replied. “So I don’t want to learn at their expense.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

More than 600,000 Americans have lost Medicaid coverage since pandemic protections ended on April 1. And a KFF Health News analysis of state data shows the vast majority were removed from state rolls for not completing paperwork.

Under normal circumstances, states review their Medicaid enrollment lists regularly to ensure every recipient qualifies for coverage. But because of a nationwide pause in those reviews during the pandemic, the health insurance program for low-income and disabled Americans kept people covered even if they no longer qualified.

Now, in what’s known as the Medicaid unwinding, states are combing through rolls and deciding who stays and who goes. People who are no longer eligible or don’t complete paperwork in time will be dropped.

The overwhelming majority of people who have lost coverage in most states were dropped because of technicalities, not because state officials determined they no longer meet Medicaid income limits. Four out of every five people dropped so far either never returned the paperwork or omitted required documents, according to a KFF Health News analysis of data from 11 states that provided details on recent cancellations. Now, lawmakers and advocates are expressing alarm over the volume of people losing coverage and, in some states, calling to pause the process.

KFF Health News sought data from the 19 states that started cancellations by May 1. Based on records from 14 states that provided detailed numbers, either in response to a public records request or by posting online, 36% of people whose eligibility was reviewed have been disenrolled.

In Indiana, 53,000 residents lost coverage in the first month of the unwinding, 89% for procedural reasons like not returning renewal forms. State Rep. Ed Clere, a Republican, expressed dismay at those “staggering numbers” in a May 24 Medicaid advisory group meeting, repeatedly questioning state officials about forms mailed to out-of-date addresses and urging them to give people more than 2 weeks’ notice before canceling their coverage.

Rep. Clere warned that the cancellations set in motion an avoidable revolving door. Some people dropped from Medicaid will have to forgo filling prescriptions and cancel doctor visits because they can’t afford care. Months down the line, after untreated chronic illnesses spiral out of control, they’ll end up in the emergency room where social workers will need to again help them join the program, he said.

Before the unwinding, more than one in four Americans – 93 million – were covered by Medicaid or CHIP, the Children’s Health Insurance Program, according to KFF Health News’ analysis of the latest enrollment data. Half of all kids are covered by the programs.

About 15 million people will be dropped over the next year as states review participants’ eligibility in monthly tranches.

Most people will find health coverage through new jobs or qualify for subsidized plans through the Affordable Care Act. But millions of others, including many children, will become uninsured and unable to afford basic prescriptions or preventive care. The uninsured rate among those under 65 is projected to rise from a historical low of 8.3% today to 9.3% next year, according to the Congressional Budget Office.

Because each state is handling the unwinding differently, the share of enrollees dropped in the first weeks varies widely.

Several states are first reviewing people officials believe are no longer eligible or who haven’t recently used their insurance. High cancellation rates in those states should level out as the agencies move on to people who likely still qualify.

In Utah, nearly 56% of people included in early reviews were dropped. In New Hampshire, 44% received cancellation letters within the first 2 months – almost all for procedural reasons, like not returning paperwork.

But New Hampshire officials found that thousands of people who didn’t fill out the forms indeed earn too much to qualify, according to Henry Lipman, the state’s Medicaid director. They would have been denied anyway. Even so, more people than he expected are not returning renewal forms. “That tells us that we need to change up our strategy,” said Mr. Lipman.

In other states, like Virginia and Nebraska, which aren’t prioritizing renewals by likely eligibility, about 90% have been renewed.

Because of the 3-year pause in renewals, many people on Medicaid have never been through the process or aren’t aware they may need to fill out long verification forms, as a recent KFF poll found. Some people moved and didn’t update their contact information.

And while agencies are required to assist enrollees who don’t speak English well, many are sending the forms in only a few common languages.

Tens of thousands of children are losing coverage, as researchers have warned, even though some may still qualify for Medicaid or CHIP. In its first month of reviews, South Dakota ended coverage for 10% of all Medicaid and CHIP enrollees in the state. More than half of them were children. In Arkansas, about 40% were kids.

Many parents don’t know that limits on household income are significantly higher for children than adults. Parents should fill out renewal forms even if they don’t qualify themselves, said Joan Alker, executive director of the Georgetown University Center for Children and Families, Washington.

New Hampshire has moved most families with children to the end of the review process. Mr. Lipman said his biggest worry is that a child will end up uninsured. Florida also planned to push kids with serious health conditions and other vulnerable groups to the end of the review line.

But according to Miriam Harmatz, advocacy director and founder of the Florida Health Justice Project, state officials sent cancellation letters to several clients with disabled children who probably still qualify. She’s helping those families appeal.

Nearly 250,000 Floridians reviewed in the first month of the unwinding lost coverage, 82% of them for reasons like incomplete paperwork, the state reported to federal authorities. House Democrats from the state petitioned Republican Gov. Ron DeSantis to pause the unwinding.

Advocacy coalitions in both Florida and Arkansas also have called for investigations into the review process and a pause on cancellations.

The state is contacting enrollees by phone, email, and text, and continues to process late applications, said Tori Cuddy, a spokesperson for the Florida Department of Children and Families. Ms. Cuddy did not respond to questions about issues raised in the petitions.

Federal officials are investigating those complaints and any other problems that emerge, said Dan Tsai, director of the Center for Medicaid & CHIP Services. “If we find that the rules are not being followed, we will take action.”

His agency has directed states to automatically reenroll residents using data from other government programs like unemployment and food assistance when possible. Anyone who can’t be approved through that process must act quickly.

“For the past 3 years, people have been told to ignore the mail around this, that the renewal was not going to lead to a termination.” Suddenly that mail matters, he said.

Federal law requires states to tell people why they’re losing Medicaid coverage and how to appeal the decision.

Ms. Harmatz said some cancellation notices in Florida are vague and could violate due process rules. Letters that she’s seen say “your Medicaid for this period is ending” rather than providing a specific reason for disenrollment, like having too high an income or incomplete paperwork.
If a person requests a hearing before their cancellation takes effect, they can stay covered during the appeals process. Even after being disenrolled, many still have a 90-day window to restore coverage.

In New Hampshire, 13% of people deemed ineligible in the first month have asked for extra time to provide the necessary records. “If you’re eligible for Medicaid, we don’t want you to lose it,” said Mr. Lipman.

Rep. Clere pushed Indiana’s Medicaid officials during the May meeting to immediately make changes to avoid people unnecessarily becoming uninsured. One official responded that they’ll learn and improve over time.

“I’m just concerned that we’re going to be ‘learning’ as a result of people losing coverage,” Rep. Clere replied. “So I don’t want to learn at their expense.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

More than 600,000 Americans have lost Medicaid coverage since pandemic protections ended on April 1. And a KFF Health News analysis of state data shows the vast majority were removed from state rolls for not completing paperwork.

Under normal circumstances, states review their Medicaid enrollment lists regularly to ensure every recipient qualifies for coverage. But because of a nationwide pause in those reviews during the pandemic, the health insurance program for low-income and disabled Americans kept people covered even if they no longer qualified.

Now, in what’s known as the Medicaid unwinding, states are combing through rolls and deciding who stays and who goes. People who are no longer eligible or don’t complete paperwork in time will be dropped.

The overwhelming majority of people who have lost coverage in most states were dropped because of technicalities, not because state officials determined they no longer meet Medicaid income limits. Four out of every five people dropped so far either never returned the paperwork or omitted required documents, according to a KFF Health News analysis of data from 11 states that provided details on recent cancellations. Now, lawmakers and advocates are expressing alarm over the volume of people losing coverage and, in some states, calling to pause the process.

KFF Health News sought data from the 19 states that started cancellations by May 1. Based on records from 14 states that provided detailed numbers, either in response to a public records request or by posting online, 36% of people whose eligibility was reviewed have been disenrolled.

In Indiana, 53,000 residents lost coverage in the first month of the unwinding, 89% for procedural reasons like not returning renewal forms. State Rep. Ed Clere, a Republican, expressed dismay at those “staggering numbers” in a May 24 Medicaid advisory group meeting, repeatedly questioning state officials about forms mailed to out-of-date addresses and urging them to give people more than 2 weeks’ notice before canceling their coverage.

Rep. Clere warned that the cancellations set in motion an avoidable revolving door. Some people dropped from Medicaid will have to forgo filling prescriptions and cancel doctor visits because they can’t afford care. Months down the line, after untreated chronic illnesses spiral out of control, they’ll end up in the emergency room where social workers will need to again help them join the program, he said.

Before the unwinding, more than one in four Americans – 93 million – were covered by Medicaid or CHIP, the Children’s Health Insurance Program, according to KFF Health News’ analysis of the latest enrollment data. Half of all kids are covered by the programs.

About 15 million people will be dropped over the next year as states review participants’ eligibility in monthly tranches.

Most people will find health coverage through new jobs or qualify for subsidized plans through the Affordable Care Act. But millions of others, including many children, will become uninsured and unable to afford basic prescriptions or preventive care. The uninsured rate among those under 65 is projected to rise from a historical low of 8.3% today to 9.3% next year, according to the Congressional Budget Office.

Because each state is handling the unwinding differently, the share of enrollees dropped in the first weeks varies widely.

Several states are first reviewing people officials believe are no longer eligible or who haven’t recently used their insurance. High cancellation rates in those states should level out as the agencies move on to people who likely still qualify.

In Utah, nearly 56% of people included in early reviews were dropped. In New Hampshire, 44% received cancellation letters within the first 2 months – almost all for procedural reasons, like not returning paperwork.

But New Hampshire officials found that thousands of people who didn’t fill out the forms indeed earn too much to qualify, according to Henry Lipman, the state’s Medicaid director. They would have been denied anyway. Even so, more people than he expected are not returning renewal forms. “That tells us that we need to change up our strategy,” said Mr. Lipman.

In other states, like Virginia and Nebraska, which aren’t prioritizing renewals by likely eligibility, about 90% have been renewed.

Because of the 3-year pause in renewals, many people on Medicaid have never been through the process or aren’t aware they may need to fill out long verification forms, as a recent KFF poll found. Some people moved and didn’t update their contact information.

And while agencies are required to assist enrollees who don’t speak English well, many are sending the forms in only a few common languages.

Tens of thousands of children are losing coverage, as researchers have warned, even though some may still qualify for Medicaid or CHIP. In its first month of reviews, South Dakota ended coverage for 10% of all Medicaid and CHIP enrollees in the state. More than half of them were children. In Arkansas, about 40% were kids.

Many parents don’t know that limits on household income are significantly higher for children than adults. Parents should fill out renewal forms even if they don’t qualify themselves, said Joan Alker, executive director of the Georgetown University Center for Children and Families, Washington.

New Hampshire has moved most families with children to the end of the review process. Mr. Lipman said his biggest worry is that a child will end up uninsured. Florida also planned to push kids with serious health conditions and other vulnerable groups to the end of the review line.

But according to Miriam Harmatz, advocacy director and founder of the Florida Health Justice Project, state officials sent cancellation letters to several clients with disabled children who probably still qualify. She’s helping those families appeal.

Nearly 250,000 Floridians reviewed in the first month of the unwinding lost coverage, 82% of them for reasons like incomplete paperwork, the state reported to federal authorities. House Democrats from the state petitioned Republican Gov. Ron DeSantis to pause the unwinding.

Advocacy coalitions in both Florida and Arkansas also have called for investigations into the review process and a pause on cancellations.

The state is contacting enrollees by phone, email, and text, and continues to process late applications, said Tori Cuddy, a spokesperson for the Florida Department of Children and Families. Ms. Cuddy did not respond to questions about issues raised in the petitions.

Federal officials are investigating those complaints and any other problems that emerge, said Dan Tsai, director of the Center for Medicaid & CHIP Services. “If we find that the rules are not being followed, we will take action.”

His agency has directed states to automatically reenroll residents using data from other government programs like unemployment and food assistance when possible. Anyone who can’t be approved through that process must act quickly.

“For the past 3 years, people have been told to ignore the mail around this, that the renewal was not going to lead to a termination.” Suddenly that mail matters, he said.

Federal law requires states to tell people why they’re losing Medicaid coverage and how to appeal the decision.

Ms. Harmatz said some cancellation notices in Florida are vague and could violate due process rules. Letters that she’s seen say “your Medicaid for this period is ending” rather than providing a specific reason for disenrollment, like having too high an income or incomplete paperwork.
If a person requests a hearing before their cancellation takes effect, they can stay covered during the appeals process. Even after being disenrolled, many still have a 90-day window to restore coverage.

In New Hampshire, 13% of people deemed ineligible in the first month have asked for extra time to provide the necessary records. “If you’re eligible for Medicaid, we don’t want you to lose it,” said Mr. Lipman.

Rep. Clere pushed Indiana’s Medicaid officials during the May meeting to immediately make changes to avoid people unnecessarily becoming uninsured. One official responded that they’ll learn and improve over time.

“I’m just concerned that we’re going to be ‘learning’ as a result of people losing coverage,” Rep. Clere replied. “So I don’t want to learn at their expense.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

Taking a daily flavanol supplement improves hippocampal-dependent memory in older adults who have a relatively poor diet, results of a large new study suggest.

There’s increasing evidence that certain nutrients are important for the aging body and brain, study investigator Scott Small, MD, the Boris and Rose Katz Professor of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, told this news organization.

“With this new study, I think we can begin to say flavanols might be the first one that really is a nutrient for the aging brain.”

These findings, said Dr. Small, represent “the beginning of a new era” that will eventually lead to formal recommendations” related to ideal intake of flavanols to reduce cognitive aging.

The findings were published online in the Proceedings of the National Academy of Science.
 

Better cognitive aging

Cognitive aging refers to the decline in cognitive abilities that are not thought to be caused by neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. Cognitive aging targets two areas of the brain: the hippocampus, which is related to memory function, and the prefrontal cortex, which is related to attention and executive function.

Previous research has linked flavanols, which are found in foods like apples, pears, berries, and cocoa beans, to improved cognitive aging. The evidence shows that consuming these nutrients might be associated with the hippocampal-dependent memory component of cognitive aging.

The new study, known as COcoa Supplement and Multivitamin Outcomes Study-Web (COSMOS-Web), included 3,562 generally healthy men and women, mean age 71 years, who were mostly well-educated and non-Hispanic/non-Latinx White individuals.

Participants were randomly assigned to receive oral flavanol-containing cocoa extract (500 mg of cocoa flavanols, including 80 mg of epicatechin) or a placebo daily.

The primary endpoint was hippocampal-dependent memory at year 1 as assessed with the ModRey, a neuropsychological test designed to measure hippocampal function.

Results showed participants in both groups had a typical learning (practice) effect, with similar improvements (d = 0.025; P = .42).

Researchers used other tests to measure cognition: the Color/Directional Flanker Task, a measure of prefrontal cortex function, and the ModBent, a measure that’s sensitive to dentate gyrus function. The flavanol intervention did not affect ModBent results or performance on the Flanker test after 1 year.

However, it was a different story for those with a poor diet at baseline. Researchers stratified participants into tertiles on the basis of diet quality as measured by the Healthy Eating Index (HEI) scores. Those in the lowest tertile had poorer baseline hippocampal-dependent memory performance but not memory related to the prefrontal cortex.

The flavanol intervention improved performance on the ModRey test, compared with placebo in participants in the low HEI tertile (overall effect: d = 0.086; P = .011) but not among those with a medium or high HEI at baseline.

“We confirmed that the flavanol intervention only benefits people who are relatively deficient at baseline,” said Dr. Small.

The correlation with hippocampal-dependent memory was confirmed in a subset of 1,361 study participants who provided a urine sample. Researchers measured urinary 5-(3′,4′-dihydroxyphenyl)-gamma-valerolactone metabolite (gVLM) concentrations, a validated biomarker of flavanol consumption.

After stratifying these results into tertiles, researchers found performance on the ModRey was significantly improved with the dietary flavanol intervention (overall effect: d = 0.141; P = .006) in the lowest gVLM tertile.
 

Memory restored

When participants in the lowest tertile consumed the supplement, “their flavanol levels went back to normal, and when that happened, their memory was restored,” said Dr. Small.

It appears that there is a sort of ceiling effect to the flavanol benefits. “It seems what you need to do is normalize your flavanol levels; if you go above normal, there was no evidence that your memory keeps on getting better,” said Dr. Small.

The study included only older adults, so it’s unclear what the impact of flavanol supplementation is in younger adults. But cognitive aging “begins its slippery side” in the 40s, said Dr. Small. “If this is truly a nutrient that is taken to prevent that slide from happening, it might be beneficial to start in our 40s.”

He recognized that the effect size is not large but said this is “very dependent” on baseline factors and most study participants had a rather healthy diet. “None of our participants were really highly deficient” in flavanols, he said.

“To see a stronger effect size, we need to do another study where we recruit people who are very low, truly deficient, in flavanols, and then see what happens.”

Showing that flavanols are linked to the hippocampal and not to the prefrontal component of cognitive aging “speaks to the mechanism,” said Dr. Small.

Though the exact mechanism linking flavanols with enhanced memory isn’t clear, there are some clues; for example, research suggests cognitive aging affects the dentate gyrus, a subregion of the hippocampus.

The flavanol supplements were well tolerated. “I can say with close to certainty that this is very safe,” said Dr. Small, adding the flavanols have now been used in numerous studies.

The findings suggest flavanol consumption might be part of future dietary guidelines. “I suspect that once there is sufficient evidence, flavanols will be part of the dietary recommendations for healthy aging,” said Dr. Small.
 

A word of caution

Heather M. Snyder, PhD, vice president of medical and scientific relations, Alzheimer’s Association, said that though science suggests a balanced diet is good for overall brain health, no single food, beverage, ingredient, vitamin, or supplement has yet been proven to prevent dementia, treat or cure Alzheimer’s, or benefit cognitive function or brain health.

Experts agree the best source of vitamins and other nutrients is from whole foods as part of a balanced diet. “We recognize that, for a variety of reasons, this may not always be possible,” said Dr. Snyder.

However, she noted, dietary supplements are not subject to the same rigorous review and regulation process as medications.

“The Alzheimer’s Association strongly encourages individuals to have conversations with their physicians about all medications and dietary supplements they are currently taking or interested in starting.” 

COSMOS is supported by an investigator-initiated grant from Mars Edge, a segment of Mars, company engaged in flavanol research and flavanol-related commercial activities, which included infrastructure support and the donation of study pills and packaging. Small reports receiving an unrestricted research grant from Mars.

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

Taking a daily flavanol supplement improves hippocampal-dependent memory in older adults who have a relatively poor diet, results of a large new study suggest.

There’s increasing evidence that certain nutrients are important for the aging body and brain, study investigator Scott Small, MD, the Boris and Rose Katz Professor of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, told this news organization.

“With this new study, I think we can begin to say flavanols might be the first one that really is a nutrient for the aging brain.”

These findings, said Dr. Small, represent “the beginning of a new era” that will eventually lead to formal recommendations” related to ideal intake of flavanols to reduce cognitive aging.

The findings were published online in the Proceedings of the National Academy of Science.
 

Better cognitive aging

Cognitive aging refers to the decline in cognitive abilities that are not thought to be caused by neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. Cognitive aging targets two areas of the brain: the hippocampus, which is related to memory function, and the prefrontal cortex, which is related to attention and executive function.

Previous research has linked flavanols, which are found in foods like apples, pears, berries, and cocoa beans, to improved cognitive aging. The evidence shows that consuming these nutrients might be associated with the hippocampal-dependent memory component of cognitive aging.

The new study, known as COcoa Supplement and Multivitamin Outcomes Study-Web (COSMOS-Web), included 3,562 generally healthy men and women, mean age 71 years, who were mostly well-educated and non-Hispanic/non-Latinx White individuals.

Participants were randomly assigned to receive oral flavanol-containing cocoa extract (500 mg of cocoa flavanols, including 80 mg of epicatechin) or a placebo daily.

The primary endpoint was hippocampal-dependent memory at year 1 as assessed with the ModRey, a neuropsychological test designed to measure hippocampal function.

Results showed participants in both groups had a typical learning (practice) effect, with similar improvements (d = 0.025; P = .42).

Researchers used other tests to measure cognition: the Color/Directional Flanker Task, a measure of prefrontal cortex function, and the ModBent, a measure that’s sensitive to dentate gyrus function. The flavanol intervention did not affect ModBent results or performance on the Flanker test after 1 year.

However, it was a different story for those with a poor diet at baseline. Researchers stratified participants into tertiles on the basis of diet quality as measured by the Healthy Eating Index (HEI) scores. Those in the lowest tertile had poorer baseline hippocampal-dependent memory performance but not memory related to the prefrontal cortex.

The flavanol intervention improved performance on the ModRey test, compared with placebo in participants in the low HEI tertile (overall effect: d = 0.086; P = .011) but not among those with a medium or high HEI at baseline.

“We confirmed that the flavanol intervention only benefits people who are relatively deficient at baseline,” said Dr. Small.

The correlation with hippocampal-dependent memory was confirmed in a subset of 1,361 study participants who provided a urine sample. Researchers measured urinary 5-(3′,4′-dihydroxyphenyl)-gamma-valerolactone metabolite (gVLM) concentrations, a validated biomarker of flavanol consumption.

After stratifying these results into tertiles, researchers found performance on the ModRey was significantly improved with the dietary flavanol intervention (overall effect: d = 0.141; P = .006) in the lowest gVLM tertile.
 

Memory restored

When participants in the lowest tertile consumed the supplement, “their flavanol levels went back to normal, and when that happened, their memory was restored,” said Dr. Small.

It appears that there is a sort of ceiling effect to the flavanol benefits. “It seems what you need to do is normalize your flavanol levels; if you go above normal, there was no evidence that your memory keeps on getting better,” said Dr. Small.

The study included only older adults, so it’s unclear what the impact of flavanol supplementation is in younger adults. But cognitive aging “begins its slippery side” in the 40s, said Dr. Small. “If this is truly a nutrient that is taken to prevent that slide from happening, it might be beneficial to start in our 40s.”

He recognized that the effect size is not large but said this is “very dependent” on baseline factors and most study participants had a rather healthy diet. “None of our participants were really highly deficient” in flavanols, he said.

“To see a stronger effect size, we need to do another study where we recruit people who are very low, truly deficient, in flavanols, and then see what happens.”

Showing that flavanols are linked to the hippocampal and not to the prefrontal component of cognitive aging “speaks to the mechanism,” said Dr. Small.

Though the exact mechanism linking flavanols with enhanced memory isn’t clear, there are some clues; for example, research suggests cognitive aging affects the dentate gyrus, a subregion of the hippocampus.

The flavanol supplements were well tolerated. “I can say with close to certainty that this is very safe,” said Dr. Small, adding the flavanols have now been used in numerous studies.

The findings suggest flavanol consumption might be part of future dietary guidelines. “I suspect that once there is sufficient evidence, flavanols will be part of the dietary recommendations for healthy aging,” said Dr. Small.
 

A word of caution

Heather M. Snyder, PhD, vice president of medical and scientific relations, Alzheimer’s Association, said that though science suggests a balanced diet is good for overall brain health, no single food, beverage, ingredient, vitamin, or supplement has yet been proven to prevent dementia, treat or cure Alzheimer’s, or benefit cognitive function or brain health.

Experts agree the best source of vitamins and other nutrients is from whole foods as part of a balanced diet. “We recognize that, for a variety of reasons, this may not always be possible,” said Dr. Snyder.

However, she noted, dietary supplements are not subject to the same rigorous review and regulation process as medications.

“The Alzheimer’s Association strongly encourages individuals to have conversations with their physicians about all medications and dietary supplements they are currently taking or interested in starting.” 

COSMOS is supported by an investigator-initiated grant from Mars Edge, a segment of Mars, company engaged in flavanol research and flavanol-related commercial activities, which included infrastructure support and the donation of study pills and packaging. Small reports receiving an unrestricted research grant from Mars.

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

Taking a daily flavanol supplement improves hippocampal-dependent memory in older adults who have a relatively poor diet, results of a large new study suggest.

There’s increasing evidence that certain nutrients are important for the aging body and brain, study investigator Scott Small, MD, the Boris and Rose Katz Professor of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York, told this news organization.

“With this new study, I think we can begin to say flavanols might be the first one that really is a nutrient for the aging brain.”

These findings, said Dr. Small, represent “the beginning of a new era” that will eventually lead to formal recommendations” related to ideal intake of flavanols to reduce cognitive aging.

The findings were published online in the Proceedings of the National Academy of Science.
 

Better cognitive aging

Cognitive aging refers to the decline in cognitive abilities that are not thought to be caused by neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. Cognitive aging targets two areas of the brain: the hippocampus, which is related to memory function, and the prefrontal cortex, which is related to attention and executive function.

Previous research has linked flavanols, which are found in foods like apples, pears, berries, and cocoa beans, to improved cognitive aging. The evidence shows that consuming these nutrients might be associated with the hippocampal-dependent memory component of cognitive aging.

The new study, known as COcoa Supplement and Multivitamin Outcomes Study-Web (COSMOS-Web), included 3,562 generally healthy men and women, mean age 71 years, who were mostly well-educated and non-Hispanic/non-Latinx White individuals.

Participants were randomly assigned to receive oral flavanol-containing cocoa extract (500 mg of cocoa flavanols, including 80 mg of epicatechin) or a placebo daily.

The primary endpoint was hippocampal-dependent memory at year 1 as assessed with the ModRey, a neuropsychological test designed to measure hippocampal function.

Results showed participants in both groups had a typical learning (practice) effect, with similar improvements (d = 0.025; P = .42).

Researchers used other tests to measure cognition: the Color/Directional Flanker Task, a measure of prefrontal cortex function, and the ModBent, a measure that’s sensitive to dentate gyrus function. The flavanol intervention did not affect ModBent results or performance on the Flanker test after 1 year.

However, it was a different story for those with a poor diet at baseline. Researchers stratified participants into tertiles on the basis of diet quality as measured by the Healthy Eating Index (HEI) scores. Those in the lowest tertile had poorer baseline hippocampal-dependent memory performance but not memory related to the prefrontal cortex.

The flavanol intervention improved performance on the ModRey test, compared with placebo in participants in the low HEI tertile (overall effect: d = 0.086; P = .011) but not among those with a medium or high HEI at baseline.

“We confirmed that the flavanol intervention only benefits people who are relatively deficient at baseline,” said Dr. Small.

The correlation with hippocampal-dependent memory was confirmed in a subset of 1,361 study participants who provided a urine sample. Researchers measured urinary 5-(3′,4′-dihydroxyphenyl)-gamma-valerolactone metabolite (gVLM) concentrations, a validated biomarker of flavanol consumption.

After stratifying these results into tertiles, researchers found performance on the ModRey was significantly improved with the dietary flavanol intervention (overall effect: d = 0.141; P = .006) in the lowest gVLM tertile.
 

Memory restored

When participants in the lowest tertile consumed the supplement, “their flavanol levels went back to normal, and when that happened, their memory was restored,” said Dr. Small.

It appears that there is a sort of ceiling effect to the flavanol benefits. “It seems what you need to do is normalize your flavanol levels; if you go above normal, there was no evidence that your memory keeps on getting better,” said Dr. Small.

The study included only older adults, so it’s unclear what the impact of flavanol supplementation is in younger adults. But cognitive aging “begins its slippery side” in the 40s, said Dr. Small. “If this is truly a nutrient that is taken to prevent that slide from happening, it might be beneficial to start in our 40s.”

He recognized that the effect size is not large but said this is “very dependent” on baseline factors and most study participants had a rather healthy diet. “None of our participants were really highly deficient” in flavanols, he said.

“To see a stronger effect size, we need to do another study where we recruit people who are very low, truly deficient, in flavanols, and then see what happens.”

Showing that flavanols are linked to the hippocampal and not to the prefrontal component of cognitive aging “speaks to the mechanism,” said Dr. Small.

Though the exact mechanism linking flavanols with enhanced memory isn’t clear, there are some clues; for example, research suggests cognitive aging affects the dentate gyrus, a subregion of the hippocampus.

The flavanol supplements were well tolerated. “I can say with close to certainty that this is very safe,” said Dr. Small, adding the flavanols have now been used in numerous studies.

The findings suggest flavanol consumption might be part of future dietary guidelines. “I suspect that once there is sufficient evidence, flavanols will be part of the dietary recommendations for healthy aging,” said Dr. Small.
 

A word of caution

Heather M. Snyder, PhD, vice president of medical and scientific relations, Alzheimer’s Association, said that though science suggests a balanced diet is good for overall brain health, no single food, beverage, ingredient, vitamin, or supplement has yet been proven to prevent dementia, treat or cure Alzheimer’s, or benefit cognitive function or brain health.

Experts agree the best source of vitamins and other nutrients is from whole foods as part of a balanced diet. “We recognize that, for a variety of reasons, this may not always be possible,” said Dr. Snyder.

However, she noted, dietary supplements are not subject to the same rigorous review and regulation process as medications.

“The Alzheimer’s Association strongly encourages individuals to have conversations with their physicians about all medications and dietary supplements they are currently taking or interested in starting.” 

COSMOS is supported by an investigator-initiated grant from Mars Edge, a segment of Mars, company engaged in flavanol research and flavanol-related commercial activities, which included infrastructure support and the donation of study pills and packaging. Small reports receiving an unrestricted research grant from Mars.

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

Autologous hematopoietic stem cell transplant (AHSCT) is more effective than fingolimod and natalizumab for patients with highly active relapsing-remitting multiple sclerosis (MS), data indicate.

In a multicenter study that emulated pairwise trials, AHSCT was associated with a higher likelihood of disability improvement, compared with fingolimod (hazard ratio, 2.70).

Once the immune system is reconstituted, it can contribute to the healing process. AHSCT thus provides the possibility of improvement in MS. Disease-modifying therapies that require continued use, however, could inhibit that process.

“If you can stop the inflammation that’s driving this disease fairly early on, [patients] do have the capacity to repair,” said study author Mark Freedman, MD, a professor of neurology at the University of Ottawa. “And we start to see that especially in a treatment [like AHSCT] where you don’t maintain the hit on the immune system.”

The study was published online in JAMA Neurology.
 

Pairwise analyses

Single-arm studies and an open-label, randomized trial have suggested that AHSCT has efficacy. The regimen is associated with a 0.3%-2.0% risk for mortality, but this risk has declined with better patient selection and clinical experience, according to the researchers. Comparative studies of AHSCT and DMTs are needed, but they are difficult to carry out, which is why the current team chose a propensity-score matched case–control design, according to lead author Tomas Kalincik, MD, PhD, head of the University of Melbourne’s Clinical Outcomes Research Unit.

The researchers examined data from 4,915 patients with relapsing-remitting MS. Of this population, 3.4% received AHSCT, 52.0% received fingolimod, 30.3% received natalizumab, and 14.2% received ocrelizumab. The proportion of women in the treatment groups ranged from 65% to 70%.

The researchers used pairwise matching to simulate the randomized, controlled trials comparing AHSCT with fingolimod, natalizumab, and ocrelizumab. Patients were matched on the basis of sex, age, disability, relapse events at 12 and 24 months before baseline, time from first symptoms to baseline, the most effective previous DMT, and geographical region.

Compared with fingolimod, AHSCT was associated with fewer relapses (annualized relapse rate, 0.09 vs. 0.20; P < .001). This finding was confirmed by a reduced cumulative hazard of relapse (HR, 0.26).

Compared with natalizumab, AHSCT had only a modestly greater effect on annualized relapse rates (ARR, 0.08 vs. 0.10; P = .03), with a cumulative HR for relapses of 0.51.

There was no significant difference in the risk for relapse between treatment with AHSCT and with ocrelizumab (ARR, 0.09 vs. 0.06; P = .86), nor was the risk of cumulative relapses significantly different between these treatments.

Among patients included in the pairwise analyses who received AHSCT, 23.3% developed febrile neutropenia during mobilization, 11.3% developed serum sickness, and 8.8% were admitted to an intensive care unit. There were 82 serious adverse events among 58 patients after they were discharged post AHSCT treatment, including infections (59.8% of adverse events) that were primarily due to viral sources (41.5% of adverse events). There was one death (0.6%) due to veno-occlusive disease of the liver following busulfan exposure.

Some AHSCT protocols are stronger than others, and milder immune ablative measures are less likely to produce lasting effects. “We completely remove the old immune system and put in a brand new one,” said Dr. Freedman, referring to the practice at his center. “That’s a fairly horrendous procedure, and, not surprisingly, we’ve had a slight increase in the types of side effects, compared with other groups who don’t use that heavy-duty conditioning regimen, but we’ve had absolutely zero return of inflammatory events over 23 years that we’ve been doing this. Nobody’s had another attack, no one has even developed a single new MRI lesion.”

The so-called medium and light conditioning regimens are associated with a return of disease activity in about 25% of patients within 3 years, Dr. Freedman added. “You start to see new MRI lesions form and relapses occurring. It’s still better than any of the higher efficacy therapies, but it’s not stopped the disease.”

A key limitation of the study is that its efficacy analysis did not distinguish between different intensities of AHSCT regimens, according to the authors.
 

Encouraging results

AHSCT is highly effective at temporarily eliminating inflammation in the central nervous system, according to Jeffrey Cohen, MD, director of the Cleveland Clinic’s Mellen Center for MS Treatment and Research, and Anne Cross, MD, professor of neurology at Washington University, St. Louis, who wrote an editorial that accompanied the study. As many as 35% of patients require DMTs at some point after AHSCT.

The results of the new study are encouraging, but plenty of unanswered questions remain, Dr. Cohen said. “Many studies demonstrate AHSCT to have potent durable efficacy that appears to be greater than that of the available DMTs, but some studies – for example, this one – suggest that AHSCT may be superior to some but not all DMTs. Therefore, where to place AHSCT in the overall treatment sequence remains uncertain.” Randomized, controlled trials that are now in process “hopefully will clarify,” he added.

The study was supported by the National Health and Medical Research Council of Australia, Multiple Sclerosis Australia, and the MS Foundation of Canada. Dr. Kalincik has financial relationships with Eisai, Novartis, Biogen, Merck, Roche, Sanofi Genzyme, Teva, Celgene, Bristol-Myers Squibb, and Janssen. Dr. Freedman has financial relationships with Sanofi-Genzyme Canada, Alexion, Atara Biotherapeutics, Bayer Healthcare, Beigene, BMS (Celgene), EMD, Hoffmann-La Roche, Janssen, Merck Serono, Quanterix, Novartis, Sanofi-Genzyme, Teva Canada Innovation, Celestra Health, McKesson, and EMD Serono. Dr. Cohen has financial relationships with Biogen, Convelo, EMD Serono, Gossamer Bio, Mylan, and PSI.

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

Autologous hematopoietic stem cell transplant (AHSCT) is more effective than fingolimod and natalizumab for patients with highly active relapsing-remitting multiple sclerosis (MS), data indicate.

In a multicenter study that emulated pairwise trials, AHSCT was associated with a higher likelihood of disability improvement, compared with fingolimod (hazard ratio, 2.70).

Once the immune system is reconstituted, it can contribute to the healing process. AHSCT thus provides the possibility of improvement in MS. Disease-modifying therapies that require continued use, however, could inhibit that process.

“If you can stop the inflammation that’s driving this disease fairly early on, [patients] do have the capacity to repair,” said study author Mark Freedman, MD, a professor of neurology at the University of Ottawa. “And we start to see that especially in a treatment [like AHSCT] where you don’t maintain the hit on the immune system.”

The study was published online in JAMA Neurology.
 

Pairwise analyses

Single-arm studies and an open-label, randomized trial have suggested that AHSCT has efficacy. The regimen is associated with a 0.3%-2.0% risk for mortality, but this risk has declined with better patient selection and clinical experience, according to the researchers. Comparative studies of AHSCT and DMTs are needed, but they are difficult to carry out, which is why the current team chose a propensity-score matched case–control design, according to lead author Tomas Kalincik, MD, PhD, head of the University of Melbourne’s Clinical Outcomes Research Unit.

The researchers examined data from 4,915 patients with relapsing-remitting MS. Of this population, 3.4% received AHSCT, 52.0% received fingolimod, 30.3% received natalizumab, and 14.2% received ocrelizumab. The proportion of women in the treatment groups ranged from 65% to 70%.

The researchers used pairwise matching to simulate the randomized, controlled trials comparing AHSCT with fingolimod, natalizumab, and ocrelizumab. Patients were matched on the basis of sex, age, disability, relapse events at 12 and 24 months before baseline, time from first symptoms to baseline, the most effective previous DMT, and geographical region.

Compared with fingolimod, AHSCT was associated with fewer relapses (annualized relapse rate, 0.09 vs. 0.20; P < .001). This finding was confirmed by a reduced cumulative hazard of relapse (HR, 0.26).

Compared with natalizumab, AHSCT had only a modestly greater effect on annualized relapse rates (ARR, 0.08 vs. 0.10; P = .03), with a cumulative HR for relapses of 0.51.

There was no significant difference in the risk for relapse between treatment with AHSCT and with ocrelizumab (ARR, 0.09 vs. 0.06; P = .86), nor was the risk of cumulative relapses significantly different between these treatments.

Among patients included in the pairwise analyses who received AHSCT, 23.3% developed febrile neutropenia during mobilization, 11.3% developed serum sickness, and 8.8% were admitted to an intensive care unit. There were 82 serious adverse events among 58 patients after they were discharged post AHSCT treatment, including infections (59.8% of adverse events) that were primarily due to viral sources (41.5% of adverse events). There was one death (0.6%) due to veno-occlusive disease of the liver following busulfan exposure.

Some AHSCT protocols are stronger than others, and milder immune ablative measures are less likely to produce lasting effects. “We completely remove the old immune system and put in a brand new one,” said Dr. Freedman, referring to the practice at his center. “That’s a fairly horrendous procedure, and, not surprisingly, we’ve had a slight increase in the types of side effects, compared with other groups who don’t use that heavy-duty conditioning regimen, but we’ve had absolutely zero return of inflammatory events over 23 years that we’ve been doing this. Nobody’s had another attack, no one has even developed a single new MRI lesion.”

The so-called medium and light conditioning regimens are associated with a return of disease activity in about 25% of patients within 3 years, Dr. Freedman added. “You start to see new MRI lesions form and relapses occurring. It’s still better than any of the higher efficacy therapies, but it’s not stopped the disease.”

A key limitation of the study is that its efficacy analysis did not distinguish between different intensities of AHSCT regimens, according to the authors.
 

Encouraging results

AHSCT is highly effective at temporarily eliminating inflammation in the central nervous system, according to Jeffrey Cohen, MD, director of the Cleveland Clinic’s Mellen Center for MS Treatment and Research, and Anne Cross, MD, professor of neurology at Washington University, St. Louis, who wrote an editorial that accompanied the study. As many as 35% of patients require DMTs at some point after AHSCT.

The results of the new study are encouraging, but plenty of unanswered questions remain, Dr. Cohen said. “Many studies demonstrate AHSCT to have potent durable efficacy that appears to be greater than that of the available DMTs, but some studies – for example, this one – suggest that AHSCT may be superior to some but not all DMTs. Therefore, where to place AHSCT in the overall treatment sequence remains uncertain.” Randomized, controlled trials that are now in process “hopefully will clarify,” he added.

The study was supported by the National Health and Medical Research Council of Australia, Multiple Sclerosis Australia, and the MS Foundation of Canada. Dr. Kalincik has financial relationships with Eisai, Novartis, Biogen, Merck, Roche, Sanofi Genzyme, Teva, Celgene, Bristol-Myers Squibb, and Janssen. Dr. Freedman has financial relationships with Sanofi-Genzyme Canada, Alexion, Atara Biotherapeutics, Bayer Healthcare, Beigene, BMS (Celgene), EMD, Hoffmann-La Roche, Janssen, Merck Serono, Quanterix, Novartis, Sanofi-Genzyme, Teva Canada Innovation, Celestra Health, McKesson, and EMD Serono. Dr. Cohen has financial relationships with Biogen, Convelo, EMD Serono, Gossamer Bio, Mylan, and PSI.

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

Autologous hematopoietic stem cell transplant (AHSCT) is more effective than fingolimod and natalizumab for patients with highly active relapsing-remitting multiple sclerosis (MS), data indicate.

In a multicenter study that emulated pairwise trials, AHSCT was associated with a higher likelihood of disability improvement, compared with fingolimod (hazard ratio, 2.70).

Once the immune system is reconstituted, it can contribute to the healing process. AHSCT thus provides the possibility of improvement in MS. Disease-modifying therapies that require continued use, however, could inhibit that process.

“If you can stop the inflammation that’s driving this disease fairly early on, [patients] do have the capacity to repair,” said study author Mark Freedman, MD, a professor of neurology at the University of Ottawa. “And we start to see that especially in a treatment [like AHSCT] where you don’t maintain the hit on the immune system.”

The study was published online in JAMA Neurology.
 

Pairwise analyses

Single-arm studies and an open-label, randomized trial have suggested that AHSCT has efficacy. The regimen is associated with a 0.3%-2.0% risk for mortality, but this risk has declined with better patient selection and clinical experience, according to the researchers. Comparative studies of AHSCT and DMTs are needed, but they are difficult to carry out, which is why the current team chose a propensity-score matched case–control design, according to lead author Tomas Kalincik, MD, PhD, head of the University of Melbourne’s Clinical Outcomes Research Unit.

The researchers examined data from 4,915 patients with relapsing-remitting MS. Of this population, 3.4% received AHSCT, 52.0% received fingolimod, 30.3% received natalizumab, and 14.2% received ocrelizumab. The proportion of women in the treatment groups ranged from 65% to 70%.

The researchers used pairwise matching to simulate the randomized, controlled trials comparing AHSCT with fingolimod, natalizumab, and ocrelizumab. Patients were matched on the basis of sex, age, disability, relapse events at 12 and 24 months before baseline, time from first symptoms to baseline, the most effective previous DMT, and geographical region.

Compared with fingolimod, AHSCT was associated with fewer relapses (annualized relapse rate, 0.09 vs. 0.20; P < .001). This finding was confirmed by a reduced cumulative hazard of relapse (HR, 0.26).

Compared with natalizumab, AHSCT had only a modestly greater effect on annualized relapse rates (ARR, 0.08 vs. 0.10; P = .03), with a cumulative HR for relapses of 0.51.

There was no significant difference in the risk for relapse between treatment with AHSCT and with ocrelizumab (ARR, 0.09 vs. 0.06; P = .86), nor was the risk of cumulative relapses significantly different between these treatments.

Among patients included in the pairwise analyses who received AHSCT, 23.3% developed febrile neutropenia during mobilization, 11.3% developed serum sickness, and 8.8% were admitted to an intensive care unit. There were 82 serious adverse events among 58 patients after they were discharged post AHSCT treatment, including infections (59.8% of adverse events) that were primarily due to viral sources (41.5% of adverse events). There was one death (0.6%) due to veno-occlusive disease of the liver following busulfan exposure.

Some AHSCT protocols are stronger than others, and milder immune ablative measures are less likely to produce lasting effects. “We completely remove the old immune system and put in a brand new one,” said Dr. Freedman, referring to the practice at his center. “That’s a fairly horrendous procedure, and, not surprisingly, we’ve had a slight increase in the types of side effects, compared with other groups who don’t use that heavy-duty conditioning regimen, but we’ve had absolutely zero return of inflammatory events over 23 years that we’ve been doing this. Nobody’s had another attack, no one has even developed a single new MRI lesion.”

The so-called medium and light conditioning regimens are associated with a return of disease activity in about 25% of patients within 3 years, Dr. Freedman added. “You start to see new MRI lesions form and relapses occurring. It’s still better than any of the higher efficacy therapies, but it’s not stopped the disease.”

A key limitation of the study is that its efficacy analysis did not distinguish between different intensities of AHSCT regimens, according to the authors.
 

Encouraging results

AHSCT is highly effective at temporarily eliminating inflammation in the central nervous system, according to Jeffrey Cohen, MD, director of the Cleveland Clinic’s Mellen Center for MS Treatment and Research, and Anne Cross, MD, professor of neurology at Washington University, St. Louis, who wrote an editorial that accompanied the study. As many as 35% of patients require DMTs at some point after AHSCT.

The results of the new study are encouraging, but plenty of unanswered questions remain, Dr. Cohen said. “Many studies demonstrate AHSCT to have potent durable efficacy that appears to be greater than that of the available DMTs, but some studies – for example, this one – suggest that AHSCT may be superior to some but not all DMTs. Therefore, where to place AHSCT in the overall treatment sequence remains uncertain.” Randomized, controlled trials that are now in process “hopefully will clarify,” he added.

The study was supported by the National Health and Medical Research Council of Australia, Multiple Sclerosis Australia, and the MS Foundation of Canada. Dr. Kalincik has financial relationships with Eisai, Novartis, Biogen, Merck, Roche, Sanofi Genzyme, Teva, Celgene, Bristol-Myers Squibb, and Janssen. Dr. Freedman has financial relationships with Sanofi-Genzyme Canada, Alexion, Atara Biotherapeutics, Bayer Healthcare, Beigene, BMS (Celgene), EMD, Hoffmann-La Roche, Janssen, Merck Serono, Quanterix, Novartis, Sanofi-Genzyme, Teva Canada Innovation, Celestra Health, McKesson, and EMD Serono. Dr. Cohen has financial relationships with Biogen, Convelo, EMD Serono, Gossamer Bio, Mylan, and PSI.

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

A new practice guideline aims to help clinicians navigate an increasingly crowded field of over-the-counter and prescription treatment options for chronic idiopathic constipation in otherwise-healthy people.

The guideline, published simultaneously in the American Journal of Gastroenterology and in Gastroenterology, was developed jointly by the American Gastroenterological Association and the American College of Gastroenterology. It marks the AGA’s first update on chronic idiopathic constipation (CIC), also called functional constipation, in a decade.

In an interview, guideline lead author Lin Chang, MD, of the University of California, Los Angeles, noted that CIC – defined as constipation lasting at least 3 months in the absence of malignancy or obstruction, a medication side effect, or inflammatory bowel disease – is common, affecting between 8% and 12% of all U.S. adults. Most will be treated by primary care physicians, not specialists, Dr. Chang said. And most will see their physicians having already tried different over-the-counter treatments.

“The criteria for CIC or functional constipation hasn’t really changed” since the last AGA guideline on it was published in 2013, Dr. Chang said, adding that the diagnostic standard currently used is the Rome IV criteria for functional constipation. “There are just more medications right now than there were 10 years ago.”

The new guideline, into which evidence from 28 studies was integrated, offers recommendations regarding different types of fiber; the osmotic laxatives polyethylene glycol, magnesium oxide, and lactulose; and the stimulant laxatives bisacodyl, sodium picosulfate, and senna. It also assesses the secretagogues lubiprostone, linaclotide, plecanatide, and the serotonin type 4 agonist prucalopride.

One commonly used agent in clinical practice, the stool softener docusate sodium, does not appear in the guideline, as there was too little data available on it to make an assessment, Dr. Chang said. Fruit-based laxatives were excluded because they were the subject of a recent evidence review. Lifestyle modifications such as exercise, surgical interventions, and probiotics were not assessed.

The guideline’s strongest recommendations are for polyethylene glycol, sodium picosulfate, linaclotide, plecanatide, and prucalopride, with conditional recommendations for fiber, lactulose, senna, magnesium oxide, and lubiprostone.

As costs of the recommended therapies vary from less than $10 a month to over $500, the authors also included price information, noting that “patient values, costs, and health equity considerations” must be factored into treatment choices. “For polyethylene glycol there’s a strong recommendation, although the certainty of evidence was moderate,” Dr. Chang said. “And with fiber, even though we made only a conditional recommendation based on the evidence, our remarks and our algorithm make clear that it should be considered as a first-line treatment.”

In general, “if someone has more mild symptoms, you should try fiber or increase their fiber intake in their diet,” Dr. Chang commented. “If that doesn’t work, try over-the-counter remedies like polyethylene glycol. Then if symptoms are more severe, or if they fail the first-line treatments, then you go to prescription agents.”

In clinical practice, “there always considerations besides scientific evidence of safety and efficacy,” Dr. Chang stressed. “You have to personalize treatment for the patient.” A patient may present having already failed with fiber, or who does not want to use magnesium or can’t afford a costlier agent.

The guidelines contain implementation advice that might guide choice of therapy or dosing. With the prescription osmotic laxative lactulose, for example, “you may not wish to use it as a first-line treatment because bloating and flatulence are very common,” Dr. Chang said. “Our implementation advice makes that clear.” For senna, a stimulant laxative derived from the leaves of the senna plant and for which quality evidence is limited, the guideline authors stressed that patients should be started on low doses to avoid cramping.

Dr. Chang said that, while the new guideline covers medication options for otherwise-healthy adults, clinicians should be mindful that patients presenting with CIC might still have a defecatory disorder. “A person could also have pelvic floor dysfunction as a primary cause or contributing factor. If someone fails fiber or polyethylene glycol, consider a digital rectal examination as part of the physical exam. If this is abnormal, consider referring them for anorectal manometry.”

Untreated constipation carries risks, Dr. Chang noted, but “sometimes people with bothersome symptoms don’t treat them because they’re worried they’ll become dependent on treatment. It’s a dependency in the sense that you have to treat any chronic condition, such as high blood pressure or diabetes, but the treatments aren’t addictive, except for some stimulant laxatives to which people can develop tolerance.”

Hemorrhoids and defecatory disorders can occur over time because of straining, Dr. Chang said. “The pelvic wall can also get very lax, and that is hard to fix. Or, one can develop a rectal prolapse. Another thing that happens when people have longstanding constipation for many years is they start losing the urge to have a bowel movement.”

For more information, see the related clinical decision support tool in Gastroenterology.

The guideline’s development was funded by the AGA and ACG, without industry support. Authors with conflicts of interest regarding a specific intervention or drug were not allowed to weigh in on those interventions.

A new practice guideline aims to help clinicians navigate an increasingly crowded field of over-the-counter and prescription treatment options for chronic idiopathic constipation in otherwise-healthy people.

The guideline, published simultaneously in the American Journal of Gastroenterology and in Gastroenterology, was developed jointly by the American Gastroenterological Association and the American College of Gastroenterology. It marks the AGA’s first update on chronic idiopathic constipation (CIC), also called functional constipation, in a decade.

In an interview, guideline lead author Lin Chang, MD, of the University of California, Los Angeles, noted that CIC – defined as constipation lasting at least 3 months in the absence of malignancy or obstruction, a medication side effect, or inflammatory bowel disease – is common, affecting between 8% and 12% of all U.S. adults. Most will be treated by primary care physicians, not specialists, Dr. Chang said. And most will see their physicians having already tried different over-the-counter treatments.

“The criteria for CIC or functional constipation hasn’t really changed” since the last AGA guideline on it was published in 2013, Dr. Chang said, adding that the diagnostic standard currently used is the Rome IV criteria for functional constipation. “There are just more medications right now than there were 10 years ago.”

The new guideline, into which evidence from 28 studies was integrated, offers recommendations regarding different types of fiber; the osmotic laxatives polyethylene glycol, magnesium oxide, and lactulose; and the stimulant laxatives bisacodyl, sodium picosulfate, and senna. It also assesses the secretagogues lubiprostone, linaclotide, plecanatide, and the serotonin type 4 agonist prucalopride.

One commonly used agent in clinical practice, the stool softener docusate sodium, does not appear in the guideline, as there was too little data available on it to make an assessment, Dr. Chang said. Fruit-based laxatives were excluded because they were the subject of a recent evidence review. Lifestyle modifications such as exercise, surgical interventions, and probiotics were not assessed.

The guideline’s strongest recommendations are for polyethylene glycol, sodium picosulfate, linaclotide, plecanatide, and prucalopride, with conditional recommendations for fiber, lactulose, senna, magnesium oxide, and lubiprostone.

As costs of the recommended therapies vary from less than $10 a month to over $500, the authors also included price information, noting that “patient values, costs, and health equity considerations” must be factored into treatment choices. “For polyethylene glycol there’s a strong recommendation, although the certainty of evidence was moderate,” Dr. Chang said. “And with fiber, even though we made only a conditional recommendation based on the evidence, our remarks and our algorithm make clear that it should be considered as a first-line treatment.”

In general, “if someone has more mild symptoms, you should try fiber or increase their fiber intake in their diet,” Dr. Chang commented. “If that doesn’t work, try over-the-counter remedies like polyethylene glycol. Then if symptoms are more severe, or if they fail the first-line treatments, then you go to prescription agents.”

In clinical practice, “there always considerations besides scientific evidence of safety and efficacy,” Dr. Chang stressed. “You have to personalize treatment for the patient.” A patient may present having already failed with fiber, or who does not want to use magnesium or can’t afford a costlier agent.

The guidelines contain implementation advice that might guide choice of therapy or dosing. With the prescription osmotic laxative lactulose, for example, “you may not wish to use it as a first-line treatment because bloating and flatulence are very common,” Dr. Chang said. “Our implementation advice makes that clear.” For senna, a stimulant laxative derived from the leaves of the senna plant and for which quality evidence is limited, the guideline authors stressed that patients should be started on low doses to avoid cramping.

Dr. Chang said that, while the new guideline covers medication options for otherwise-healthy adults, clinicians should be mindful that patients presenting with CIC might still have a defecatory disorder. “A person could also have pelvic floor dysfunction as a primary cause or contributing factor. If someone fails fiber or polyethylene glycol, consider a digital rectal examination as part of the physical exam. If this is abnormal, consider referring them for anorectal manometry.”

Untreated constipation carries risks, Dr. Chang noted, but “sometimes people with bothersome symptoms don’t treat them because they’re worried they’ll become dependent on treatment. It’s a dependency in the sense that you have to treat any chronic condition, such as high blood pressure or diabetes, but the treatments aren’t addictive, except for some stimulant laxatives to which people can develop tolerance.”

Hemorrhoids and defecatory disorders can occur over time because of straining, Dr. Chang said. “The pelvic wall can also get very lax, and that is hard to fix. Or, one can develop a rectal prolapse. Another thing that happens when people have longstanding constipation for many years is they start losing the urge to have a bowel movement.”

For more information, see the related clinical decision support tool in Gastroenterology.

The guideline’s development was funded by the AGA and ACG, without industry support. Authors with conflicts of interest regarding a specific intervention or drug were not allowed to weigh in on those interventions.

A new practice guideline aims to help clinicians navigate an increasingly crowded field of over-the-counter and prescription treatment options for chronic idiopathic constipation in otherwise-healthy people.

The guideline, published simultaneously in the American Journal of Gastroenterology and in Gastroenterology, was developed jointly by the American Gastroenterological Association and the American College of Gastroenterology. It marks the AGA’s first update on chronic idiopathic constipation (CIC), also called functional constipation, in a decade.

In an interview, guideline lead author Lin Chang, MD, of the University of California, Los Angeles, noted that CIC – defined as constipation lasting at least 3 months in the absence of malignancy or obstruction, a medication side effect, or inflammatory bowel disease – is common, affecting between 8% and 12% of all U.S. adults. Most will be treated by primary care physicians, not specialists, Dr. Chang said. And most will see their physicians having already tried different over-the-counter treatments.

“The criteria for CIC or functional constipation hasn’t really changed” since the last AGA guideline on it was published in 2013, Dr. Chang said, adding that the diagnostic standard currently used is the Rome IV criteria for functional constipation. “There are just more medications right now than there were 10 years ago.”

The new guideline, into which evidence from 28 studies was integrated, offers recommendations regarding different types of fiber; the osmotic laxatives polyethylene glycol, magnesium oxide, and lactulose; and the stimulant laxatives bisacodyl, sodium picosulfate, and senna. It also assesses the secretagogues lubiprostone, linaclotide, plecanatide, and the serotonin type 4 agonist prucalopride.

One commonly used agent in clinical practice, the stool softener docusate sodium, does not appear in the guideline, as there was too little data available on it to make an assessment, Dr. Chang said. Fruit-based laxatives were excluded because they were the subject of a recent evidence review. Lifestyle modifications such as exercise, surgical interventions, and probiotics were not assessed.

The guideline’s strongest recommendations are for polyethylene glycol, sodium picosulfate, linaclotide, plecanatide, and prucalopride, with conditional recommendations for fiber, lactulose, senna, magnesium oxide, and lubiprostone.

As costs of the recommended therapies vary from less than $10 a month to over $500, the authors also included price information, noting that “patient values, costs, and health equity considerations” must be factored into treatment choices. “For polyethylene glycol there’s a strong recommendation, although the certainty of evidence was moderate,” Dr. Chang said. “And with fiber, even though we made only a conditional recommendation based on the evidence, our remarks and our algorithm make clear that it should be considered as a first-line treatment.”

In general, “if someone has more mild symptoms, you should try fiber or increase their fiber intake in their diet,” Dr. Chang commented. “If that doesn’t work, try over-the-counter remedies like polyethylene glycol. Then if symptoms are more severe, or if they fail the first-line treatments, then you go to prescription agents.”

In clinical practice, “there always considerations besides scientific evidence of safety and efficacy,” Dr. Chang stressed. “You have to personalize treatment for the patient.” A patient may present having already failed with fiber, or who does not want to use magnesium or can’t afford a costlier agent.

The guidelines contain implementation advice that might guide choice of therapy or dosing. With the prescription osmotic laxative lactulose, for example, “you may not wish to use it as a first-line treatment because bloating and flatulence are very common,” Dr. Chang said. “Our implementation advice makes that clear.” For senna, a stimulant laxative derived from the leaves of the senna plant and for which quality evidence is limited, the guideline authors stressed that patients should be started on low doses to avoid cramping.

Dr. Chang said that, while the new guideline covers medication options for otherwise-healthy adults, clinicians should be mindful that patients presenting with CIC might still have a defecatory disorder. “A person could also have pelvic floor dysfunction as a primary cause or contributing factor. If someone fails fiber or polyethylene glycol, consider a digital rectal examination as part of the physical exam. If this is abnormal, consider referring them for anorectal manometry.”

Untreated constipation carries risks, Dr. Chang noted, but “sometimes people with bothersome symptoms don’t treat them because they’re worried they’ll become dependent on treatment. It’s a dependency in the sense that you have to treat any chronic condition, such as high blood pressure or diabetes, but the treatments aren’t addictive, except for some stimulant laxatives to which people can develop tolerance.”

Hemorrhoids and defecatory disorders can occur over time because of straining, Dr. Chang said. “The pelvic wall can also get very lax, and that is hard to fix. Or, one can develop a rectal prolapse. Another thing that happens when people have longstanding constipation for many years is they start losing the urge to have a bowel movement.”

For more information, see the related clinical decision support tool in Gastroenterology.

The guideline’s development was funded by the AGA and ACG, without industry support. Authors with conflicts of interest regarding a specific intervention or drug were not allowed to weigh in on those interventions.

The Centers for Medicare & Medicaid Services has announced that Medicare will cover drugs designed to slow Alzheimer’s disease once they receive traditional approval by the Food and Drug Administration.

The one caveat is that CMS will require physicians to participate in registries that collect evidence about how these drugs work in the real world.

Physicians will be able to submit this evidence through a nationwide, CMS-facilitated portal that will be available when any product gains traditional approval and will collect information via an easy-to-use format.

“If the FDA grants traditional approval, then Medicare will cover it in appropriate settings that also support the collection of real-world information to study the usefulness of these drugs for people with Medicare,” the CMS says in a news release.

“CMS has always been committed to helping people obtain timely access to innovative treatments that meaningfully improve care and outcomes for this disease,” added CMS Administrator Chiquita Brooks-LaSure.

“If the FDA grants traditional approval, CMS is prepared to ensure anyone with Medicare Part B who meets the criteria is covered,” Ms. Brooks-LaSure explained.

The CMS says broader Medicare coverage for an Alzheimer’s drug would begin on the same day the FDA grants traditional approval. Under CMS’ current coverage policy, if the FDA grants traditional approval to other drugs in this class, they would also be eligible for broader coverage.

Currently two drugs in this class – aducanumab (Aduhelm) and lecanemab (Leqembi) – have received accelerated approval from the FDA, but no product has received traditional approval.

Lecanemab might be the first to cross the line.

On June 9, the FDA Peripheral and Central Nervous System Drugs Advisory Committee will discuss results of a confirmatory trial of lecanemab, with a potential decision on traditional approval expected shortly thereafter.

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

The Centers for Medicare & Medicaid Services has announced that Medicare will cover drugs designed to slow Alzheimer’s disease once they receive traditional approval by the Food and Drug Administration.

The one caveat is that CMS will require physicians to participate in registries that collect evidence about how these drugs work in the real world.

Physicians will be able to submit this evidence through a nationwide, CMS-facilitated portal that will be available when any product gains traditional approval and will collect information via an easy-to-use format.

“If the FDA grants traditional approval, then Medicare will cover it in appropriate settings that also support the collection of real-world information to study the usefulness of these drugs for people with Medicare,” the CMS says in a news release.

“CMS has always been committed to helping people obtain timely access to innovative treatments that meaningfully improve care and outcomes for this disease,” added CMS Administrator Chiquita Brooks-LaSure.

“If the FDA grants traditional approval, CMS is prepared to ensure anyone with Medicare Part B who meets the criteria is covered,” Ms. Brooks-LaSure explained.

The CMS says broader Medicare coverage for an Alzheimer’s drug would begin on the same day the FDA grants traditional approval. Under CMS’ current coverage policy, if the FDA grants traditional approval to other drugs in this class, they would also be eligible for broader coverage.

Currently two drugs in this class – aducanumab (Aduhelm) and lecanemab (Leqembi) – have received accelerated approval from the FDA, but no product has received traditional approval.

Lecanemab might be the first to cross the line.

On June 9, the FDA Peripheral and Central Nervous System Drugs Advisory Committee will discuss results of a confirmatory trial of lecanemab, with a potential decision on traditional approval expected shortly thereafter.

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

The Centers for Medicare & Medicaid Services has announced that Medicare will cover drugs designed to slow Alzheimer’s disease once they receive traditional approval by the Food and Drug Administration.

The one caveat is that CMS will require physicians to participate in registries that collect evidence about how these drugs work in the real world.

Physicians will be able to submit this evidence through a nationwide, CMS-facilitated portal that will be available when any product gains traditional approval and will collect information via an easy-to-use format.

“If the FDA grants traditional approval, then Medicare will cover it in appropriate settings that also support the collection of real-world information to study the usefulness of these drugs for people with Medicare,” the CMS says in a news release.

“CMS has always been committed to helping people obtain timely access to innovative treatments that meaningfully improve care and outcomes for this disease,” added CMS Administrator Chiquita Brooks-LaSure.

“If the FDA grants traditional approval, CMS is prepared to ensure anyone with Medicare Part B who meets the criteria is covered,” Ms. Brooks-LaSure explained.

The CMS says broader Medicare coverage for an Alzheimer’s drug would begin on the same day the FDA grants traditional approval. Under CMS’ current coverage policy, if the FDA grants traditional approval to other drugs in this class, they would also be eligible for broader coverage.

Currently two drugs in this class – aducanumab (Aduhelm) and lecanemab (Leqembi) – have received accelerated approval from the FDA, but no product has received traditional approval.

Lecanemab might be the first to cross the line.

On June 9, the FDA Peripheral and Central Nervous System Drugs Advisory Committee will discuss results of a confirmatory trial of lecanemab, with a potential decision on traditional approval expected shortly thereafter.

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

About 10% of people infected with Omicron reported having long COVID, a lower percentage than estimated for people infected with earlier strains of the coronavirus, according to a study published in JAMA. 

The research team looked at data from 8,646 adults infected with COVID-19 at different times of the pandemic and 1,118 who did not have COVID. 

“Based on a subset of 2,231 patients in this analysis who had a first COVID-19 infection on or after Dec. 1, 2021, when the Omicron variant was circulating, about 10% experienced long-term symptoms or long COVID after 6 months,” the National Institutes of Health said in a news release. 

People who were unvaccinated or got COVID before Omicron were more likely to have long COVID and had more severe cases, the NIH said.

Previous studies have come up with higher figures than 10% for people who have long COVID. 

For instance, in June 2022 the CDC said one in five Americans who had COVID reported having long COVID. And a University of Oxford study published in September 2021 found more than a third of patients had long COVID symptoms.

The scientists in the most recent study identified 12 symptoms that distinguished people who did and didn’t have COVID. The scientists developed a scoring system for the symptoms to set a threshold to identify people who had long COVID, the NIH said.

The symptoms were fatigue, brain fog, dizziness, stomach upset, heart palpitations, issues with sexual desire or capacity, loss of smell or taste, thirst, chronic coughing, chest pain, and abnormal movements. Another symptom was postexertional malaise, or worse symptoms after mental or physical exertion. 

Scientists still have many questions about long COVID, such as how many people get it and why some people get it and others don’t. 

The study was coordinated through the NIH’s RECOVER (Researching COVID to Enhance Recovery) initiative, which aims to find out how to define, detect, and treat long COVID.

“The researchers hope this study is the next step toward potential treatments for long COVID, which affects the health and wellbeing of millions of Americans,” the NIH said.

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

About 10% of people infected with Omicron reported having long COVID, a lower percentage than estimated for people infected with earlier strains of the coronavirus, according to a study published in JAMA. 

The research team looked at data from 8,646 adults infected with COVID-19 at different times of the pandemic and 1,118 who did not have COVID. 

“Based on a subset of 2,231 patients in this analysis who had a first COVID-19 infection on or after Dec. 1, 2021, when the Omicron variant was circulating, about 10% experienced long-term symptoms or long COVID after 6 months,” the National Institutes of Health said in a news release. 

People who were unvaccinated or got COVID before Omicron were more likely to have long COVID and had more severe cases, the NIH said.

Previous studies have come up with higher figures than 10% for people who have long COVID. 

For instance, in June 2022 the CDC said one in five Americans who had COVID reported having long COVID. And a University of Oxford study published in September 2021 found more than a third of patients had long COVID symptoms.

The scientists in the most recent study identified 12 symptoms that distinguished people who did and didn’t have COVID. The scientists developed a scoring system for the symptoms to set a threshold to identify people who had long COVID, the NIH said.

The symptoms were fatigue, brain fog, dizziness, stomach upset, heart palpitations, issues with sexual desire or capacity, loss of smell or taste, thirst, chronic coughing, chest pain, and abnormal movements. Another symptom was postexertional malaise, or worse symptoms after mental or physical exertion. 

Scientists still have many questions about long COVID, such as how many people get it and why some people get it and others don’t. 

The study was coordinated through the NIH’s RECOVER (Researching COVID to Enhance Recovery) initiative, which aims to find out how to define, detect, and treat long COVID.

“The researchers hope this study is the next step toward potential treatments for long COVID, which affects the health and wellbeing of millions of Americans,” the NIH said.

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

About 10% of people infected with Omicron reported having long COVID, a lower percentage than estimated for people infected with earlier strains of the coronavirus, according to a study published in JAMA. 

The research team looked at data from 8,646 adults infected with COVID-19 at different times of the pandemic and 1,118 who did not have COVID. 

“Based on a subset of 2,231 patients in this analysis who had a first COVID-19 infection on or after Dec. 1, 2021, when the Omicron variant was circulating, about 10% experienced long-term symptoms or long COVID after 6 months,” the National Institutes of Health said in a news release. 

People who were unvaccinated or got COVID before Omicron were more likely to have long COVID and had more severe cases, the NIH said.

Previous studies have come up with higher figures than 10% for people who have long COVID. 

For instance, in June 2022 the CDC said one in five Americans who had COVID reported having long COVID. And a University of Oxford study published in September 2021 found more than a third of patients had long COVID symptoms.

The scientists in the most recent study identified 12 symptoms that distinguished people who did and didn’t have COVID. The scientists developed a scoring system for the symptoms to set a threshold to identify people who had long COVID, the NIH said.

The symptoms were fatigue, brain fog, dizziness, stomach upset, heart palpitations, issues with sexual desire or capacity, loss of smell or taste, thirst, chronic coughing, chest pain, and abnormal movements. Another symptom was postexertional malaise, or worse symptoms after mental or physical exertion. 

Scientists still have many questions about long COVID, such as how many people get it and why some people get it and others don’t. 

The study was coordinated through the NIH’s RECOVER (Researching COVID to Enhance Recovery) initiative, which aims to find out how to define, detect, and treat long COVID.

“The researchers hope this study is the next step toward potential treatments for long COVID, which affects the health and wellbeing of millions of Americans,” the NIH said.

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

COVID-19 boosters are not linked to an increased chance of miscarriage, according to a new study in JAMA Network Open.

Researchers were seeking to learn whether a booster in early pregnancy, before 20 weeks, was associated with greater likelihood of spontaneous abortion.

They examined more than 100,000 pregnancies at 6-19 weeks from eight health systems in the Vaccine Safety Datalink (VSD). They found that receiving a COVID-19 booster shot in a 28-day or 42-day exposure window did not increase the chances of miscarriage.

“These findings support the safety of COVID-19 booster vaccination in early pregnancy,” they wrote.

The VSD is a collaboration between the Centers for Disease Control and Prevention’s Immunization Safety Office and large health care systems. The “observational, case-control, surveillance study” was conducted from Nov. 1, 2021, to June 12, 2022.

“COVID infection during pregnancy increases risk of poor outcomes, yet many people who are pregnant or thinking about getting pregnant are hesitant to get a booster dose because of questions about safety,” said Elyse Kharbanda, MD, senior investigator at HealthPartners Institute and lead author of the study in a press release.

The University of Minnesota reported that “previous studies have shown COIVD-19 primary vaccination is safe in pregnancy and not associated with an increased risk for miscarriage. Several studies have also shown COVID-19 can be more severe in pregnancy and lead to worse outcomes for the mother.”

The study was funded by the CDC. Five study authors reported conflicts of interest with Pfizer, Merck, GlaxoSmithKline, AbbVie, and Sanofi Pasteur.

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

COVID-19 boosters are not linked to an increased chance of miscarriage, according to a new study in JAMA Network Open.

Researchers were seeking to learn whether a booster in early pregnancy, before 20 weeks, was associated with greater likelihood of spontaneous abortion.

They examined more than 100,000 pregnancies at 6-19 weeks from eight health systems in the Vaccine Safety Datalink (VSD). They found that receiving a COVID-19 booster shot in a 28-day or 42-day exposure window did not increase the chances of miscarriage.

“These findings support the safety of COVID-19 booster vaccination in early pregnancy,” they wrote.

The VSD is a collaboration between the Centers for Disease Control and Prevention’s Immunization Safety Office and large health care systems. The “observational, case-control, surveillance study” was conducted from Nov. 1, 2021, to June 12, 2022.

“COVID infection during pregnancy increases risk of poor outcomes, yet many people who are pregnant or thinking about getting pregnant are hesitant to get a booster dose because of questions about safety,” said Elyse Kharbanda, MD, senior investigator at HealthPartners Institute and lead author of the study in a press release.

The University of Minnesota reported that “previous studies have shown COIVD-19 primary vaccination is safe in pregnancy and not associated with an increased risk for miscarriage. Several studies have also shown COVID-19 can be more severe in pregnancy and lead to worse outcomes for the mother.”

The study was funded by the CDC. Five study authors reported conflicts of interest with Pfizer, Merck, GlaxoSmithKline, AbbVie, and Sanofi Pasteur.

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

COVID-19 boosters are not linked to an increased chance of miscarriage, according to a new study in JAMA Network Open.

Researchers were seeking to learn whether a booster in early pregnancy, before 20 weeks, was associated with greater likelihood of spontaneous abortion.

They examined more than 100,000 pregnancies at 6-19 weeks from eight health systems in the Vaccine Safety Datalink (VSD). They found that receiving a COVID-19 booster shot in a 28-day or 42-day exposure window did not increase the chances of miscarriage.

“These findings support the safety of COVID-19 booster vaccination in early pregnancy,” they wrote.

The VSD is a collaboration between the Centers for Disease Control and Prevention’s Immunization Safety Office and large health care systems. The “observational, case-control, surveillance study” was conducted from Nov. 1, 2021, to June 12, 2022.

“COVID infection during pregnancy increases risk of poor outcomes, yet many people who are pregnant or thinking about getting pregnant are hesitant to get a booster dose because of questions about safety,” said Elyse Kharbanda, MD, senior investigator at HealthPartners Institute and lead author of the study in a press release.

The University of Minnesota reported that “previous studies have shown COIVD-19 primary vaccination is safe in pregnancy and not associated with an increased risk for miscarriage. Several studies have also shown COVID-19 can be more severe in pregnancy and lead to worse outcomes for the mother.”

The study was funded by the CDC. Five study authors reported conflicts of interest with Pfizer, Merck, GlaxoSmithKline, AbbVie, and Sanofi Pasteur.

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

The Food and Drug Administration is warning people to avoid using compounded medicines as substitutes for the popular weight loss and diabetes drugs Ozempic, Rybelsus, and Wegovy.

Compounded medicines are not FDA approved but are allowed to be made during an official drug shortage. Ozempic and Wegovy are currently on the FDA’s shortage list, but the federal agency warned that it has received reports of people experiencing “adverse events” after using compounded versions of the drugs. (The FDA did not provide details of those events or where the drugs involved were compounded.)

Agency officials are concerned that the compounded versions may contain ingredients that sound like the brand name drugs’ active ingredient, semaglutide, but are different because the ingredients are in salt form.

“Patients should be aware that some products sold as ‘semaglutide’ may not contain the same active ingredient as FDA-approved semaglutide products and may be the salt formulations,” the FDA warning stated. “Products containing these salts, such as semaglutide sodium and semaglutide acetate, have not been shown to be safe and effective.”

The agency said salt forms don’t meet the criteria for compounding during a shortage and sent a letter to the National Association of Boards of Pharmacy expressing “concerns with use of the salt forms in compounded products.”

Patients and health care providers should be aware that “compounded drugs are not FDA approved, and the agency does not verify the safety or effectiveness of compounded drugs,” the FDA explained in its statement.

The Alliance for Pharmacy Compounding’s board of directors said in a statement that some compounders’ arguments for the suitability of semaglutide sodium are “worthy of discussion,” but the board did not endorse those arguments.

For people who use an online pharmacy, the FDA recommends checking the FDA’s website BeSafeRx to check its credentials.

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

The Food and Drug Administration is warning people to avoid using compounded medicines as substitutes for the popular weight loss and diabetes drugs Ozempic, Rybelsus, and Wegovy.

Compounded medicines are not FDA approved but are allowed to be made during an official drug shortage. Ozempic and Wegovy are currently on the FDA’s shortage list, but the federal agency warned that it has received reports of people experiencing “adverse events” after using compounded versions of the drugs. (The FDA did not provide details of those events or where the drugs involved were compounded.)

Agency officials are concerned that the compounded versions may contain ingredients that sound like the brand name drugs’ active ingredient, semaglutide, but are different because the ingredients are in salt form.

“Patients should be aware that some products sold as ‘semaglutide’ may not contain the same active ingredient as FDA-approved semaglutide products and may be the salt formulations,” the FDA warning stated. “Products containing these salts, such as semaglutide sodium and semaglutide acetate, have not been shown to be safe and effective.”

The agency said salt forms don’t meet the criteria for compounding during a shortage and sent a letter to the National Association of Boards of Pharmacy expressing “concerns with use of the salt forms in compounded products.”

Patients and health care providers should be aware that “compounded drugs are not FDA approved, and the agency does not verify the safety or effectiveness of compounded drugs,” the FDA explained in its statement.

The Alliance for Pharmacy Compounding’s board of directors said in a statement that some compounders’ arguments for the suitability of semaglutide sodium are “worthy of discussion,” but the board did not endorse those arguments.

For people who use an online pharmacy, the FDA recommends checking the FDA’s website BeSafeRx to check its credentials.

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

The Food and Drug Administration is warning people to avoid using compounded medicines as substitutes for the popular weight loss and diabetes drugs Ozempic, Rybelsus, and Wegovy.

Compounded medicines are not FDA approved but are allowed to be made during an official drug shortage. Ozempic and Wegovy are currently on the FDA’s shortage list, but the federal agency warned that it has received reports of people experiencing “adverse events” after using compounded versions of the drugs. (The FDA did not provide details of those events or where the drugs involved were compounded.)

Agency officials are concerned that the compounded versions may contain ingredients that sound like the brand name drugs’ active ingredient, semaglutide, but are different because the ingredients are in salt form.

“Patients should be aware that some products sold as ‘semaglutide’ may not contain the same active ingredient as FDA-approved semaglutide products and may be the salt formulations,” the FDA warning stated. “Products containing these salts, such as semaglutide sodium and semaglutide acetate, have not been shown to be safe and effective.”

The agency said salt forms don’t meet the criteria for compounding during a shortage and sent a letter to the National Association of Boards of Pharmacy expressing “concerns with use of the salt forms in compounded products.”

Patients and health care providers should be aware that “compounded drugs are not FDA approved, and the agency does not verify the safety or effectiveness of compounded drugs,” the FDA explained in its statement.

The Alliance for Pharmacy Compounding’s board of directors said in a statement that some compounders’ arguments for the suitability of semaglutide sodium are “worthy of discussion,” but the board did not endorse those arguments.

For people who use an online pharmacy, the FDA recommends checking the FDA’s website BeSafeRx to check its credentials.

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

A new study reveals health concerns about the sugar substitute sucralose so alarming that researchers said people should stop eating it and the government should regulate it more.

Sucralose is sold under the brand name Splenda and is also used as an ingredient in packaged foods and beverages.

The findings were published in the Journal of Toxicology and Environmental Health, Part B. The researchers conducted a series of laboratory experiments exposing human blood cells and gut tissue to sucralose-6-acetate. The findings build on previous research that linked sucralose to gut health problems.

The researchers found that sucralose causes DNA to break apart, putting people at risk for disease. They also linked sucralose to leaky gut syndrome, which means the lining of the intestines are worn down and become permeable. Symptoms are a burning sensation, painful digestion, diarrhea, gas, and bloating.

When a substance damages DNA, it is called genotoxic. Researchers have found that eating sucralose results in the body producing a substance called sucralose-6-acetate, which the new study now shows is genotoxic. The researchers also found sucralose-6-acetate in trace amounts in off-the-shelf products that are so high, they would exceed the safety levels currently allowed in Europe.

“It’s time to revisit the safety and regulatory status of sucralose because the evidence is mounting that it carries significant risks. If nothing else, I encourage people to avoid products containing sucralose,” researcher Susan Schiffman, PhD, adjunct professor of biomedical engineering at North Carolina State University, Raleigh, said in a statement. “It’s something you should not be eating.”

The FDA says sucralose is safe, describing it as 600 times sweeter than table sugar and used in “baked goods, beverages, chewing gum, gelatins, and frozen dairy desserts.”

“To determine the safety of sucralose, the FDA reviewed more than 110 studies designed to identify possible toxic effects, including studies on the reproductive and nervous systems, carcinogenicity, and metabolism,” the agency explained on its website. “The FDA also reviewed human clinical trials to address metabolism and effects on patients with diabetes.”

The study authors reported that they had no conflicts of interest.A version of this article first appeared on WebMD.com.

A new study reveals health concerns about the sugar substitute sucralose so alarming that researchers said people should stop eating it and the government should regulate it more.

Sucralose is sold under the brand name Splenda and is also used as an ingredient in packaged foods and beverages.

The findings were published in the Journal of Toxicology and Environmental Health, Part B. The researchers conducted a series of laboratory experiments exposing human blood cells and gut tissue to sucralose-6-acetate. The findings build on previous research that linked sucralose to gut health problems.

The researchers found that sucralose causes DNA to break apart, putting people at risk for disease. They also linked sucralose to leaky gut syndrome, which means the lining of the intestines are worn down and become permeable. Symptoms are a burning sensation, painful digestion, diarrhea, gas, and bloating.

When a substance damages DNA, it is called genotoxic. Researchers have found that eating sucralose results in the body producing a substance called sucralose-6-acetate, which the new study now shows is genotoxic. The researchers also found sucralose-6-acetate in trace amounts in off-the-shelf products that are so high, they would exceed the safety levels currently allowed in Europe.

“It’s time to revisit the safety and regulatory status of sucralose because the evidence is mounting that it carries significant risks. If nothing else, I encourage people to avoid products containing sucralose,” researcher Susan Schiffman, PhD, adjunct professor of biomedical engineering at North Carolina State University, Raleigh, said in a statement. “It’s something you should not be eating.”

The FDA says sucralose is safe, describing it as 600 times sweeter than table sugar and used in “baked goods, beverages, chewing gum, gelatins, and frozen dairy desserts.”

“To determine the safety of sucralose, the FDA reviewed more than 110 studies designed to identify possible toxic effects, including studies on the reproductive and nervous systems, carcinogenicity, and metabolism,” the agency explained on its website. “The FDA also reviewed human clinical trials to address metabolism and effects on patients with diabetes.”

The study authors reported that they had no conflicts of interest.A version of this article first appeared on WebMD.com.

A new study reveals health concerns about the sugar substitute sucralose so alarming that researchers said people should stop eating it and the government should regulate it more.

Sucralose is sold under the brand name Splenda and is also used as an ingredient in packaged foods and beverages.

The findings were published in the Journal of Toxicology and Environmental Health, Part B. The researchers conducted a series of laboratory experiments exposing human blood cells and gut tissue to sucralose-6-acetate. The findings build on previous research that linked sucralose to gut health problems.

The researchers found that sucralose causes DNA to break apart, putting people at risk for disease. They also linked sucralose to leaky gut syndrome, which means the lining of the intestines are worn down and become permeable. Symptoms are a burning sensation, painful digestion, diarrhea, gas, and bloating.

When a substance damages DNA, it is called genotoxic. Researchers have found that eating sucralose results in the body producing a substance called sucralose-6-acetate, which the new study now shows is genotoxic. The researchers also found sucralose-6-acetate in trace amounts in off-the-shelf products that are so high, they would exceed the safety levels currently allowed in Europe.

“It’s time to revisit the safety and regulatory status of sucralose because the evidence is mounting that it carries significant risks. If nothing else, I encourage people to avoid products containing sucralose,” researcher Susan Schiffman, PhD, adjunct professor of biomedical engineering at North Carolina State University, Raleigh, said in a statement. “It’s something you should not be eating.”

The FDA says sucralose is safe, describing it as 600 times sweeter than table sugar and used in “baked goods, beverages, chewing gum, gelatins, and frozen dairy desserts.”

“To determine the safety of sucralose, the FDA reviewed more than 110 studies designed to identify possible toxic effects, including studies on the reproductive and nervous systems, carcinogenicity, and metabolism,” the agency explained on its website. “The FDA also reviewed human clinical trials to address metabolism and effects on patients with diabetes.”

The study authors reported that they had no conflicts of interest.A version of this article first appeared on WebMD.com.

Dual orexin receptor antagonists (DORAs), a class of drugs approved to treat insomnia, may also be effective for rapid eye movement sleep behavior disorder (RBD), a study suggests.

About 3 million people in the United States have RBD, which is often a precursor to Parkinson’s disease. People with the disorder act out their dreams by talking, flailing their arms and legs, punching, kicking, and exhibiting other behaviors while asleep.

Researchers used an animal model for the study, which they say is the first to identify a new form of treatment for RBD.

“REM behavior disorder is difficult to treat, and the treatments are mostly limited to clonazepam and melatonin,” which may have side effects, senior investigator Andrew Varga, MD, PhD, associate professor of pulmonary, critical care, and sleep medicine at the Icahn School of Medicine at Mount Sinai, New York, told this news organization. “We’re using something completely different, which raises the possibility this might be something useful for REM behavior disorders.”

The findings, with Mount Sinai assistant professor Korey Kam, PhD, as lead author, were published online in the Journal of Neuroscience.
 

A new model for RBD?

RBD can signal risk for synucleinopathies, a group of neurological conditions such as Parkinson’s disease that involve the formation of clumps of alpha-synuclein protein in the brain.

Prior research on RBD was done in synucleinopathy mouse models. For this study, however, researchers used a tauopathy mouse model to investigate how the abnormal accumulation of tau protein might affect RBD.

Researchers collected data on biophysical properties when the mice were awake and in REM and non-REM sleep. They examined length of sleep, transitions from waking to sleep, and how some factors are related to age.

Nearly a third of the older animals showed behaviors similar to REM sleep behavior disorder in humans, including chewing and limb extension.

But after researchers administered a DORA medication twice during a 24-hour period, they noted that the medication not only helped the animals fall asleep faster and for longer, it also reduced levels of dream enactment that are a hallmark of RBD.
 

The ‘bigger highlight’

Finding RBD behaviors in a tauopathy animal model was surprising, Dr. Varga said, because RBD has been previously linked to synucleinopathies. There was no known correlation between RBD and abnormal accumulation of tau.

Another unexpected finding was the detection of RBD in some of the younger animals, who had not yet shown evidence of tau accumulation.

“It appears to be a biomarker or a signature of something that’s going on that predicts the impending tauopathy at a time where there is very little, or no, tau pathology going on in the brain,” Dr. Varga said.

If RBD is an early predictor of future tau accumulation, the model could guide future prevention and treatment. However, the more important finding is the potential new treatment for the condition.

“The bigger highlight here is less about what’s causing the RBD [than about] what you can do to make it better,” he said.

The next step in the work is to study whether the effect of DORAs on RBD seen in this tauopathy mouse model is evidenced in other animals and whether it is effective in humans with RBD, Dr. Varga said.

The study was funded by the Alzheimer’s Association and Merck Investigator Studies Program. Dr. Kam, Dr. Varga, and coauthors report no relevant financial relationships.

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

Dual orexin receptor antagonists (DORAs), a class of drugs approved to treat insomnia, may also be effective for rapid eye movement sleep behavior disorder (RBD), a study suggests.

About 3 million people in the United States have RBD, which is often a precursor to Parkinson’s disease. People with the disorder act out their dreams by talking, flailing their arms and legs, punching, kicking, and exhibiting other behaviors while asleep.

Researchers used an animal model for the study, which they say is the first to identify a new form of treatment for RBD.

“REM behavior disorder is difficult to treat, and the treatments are mostly limited to clonazepam and melatonin,” which may have side effects, senior investigator Andrew Varga, MD, PhD, associate professor of pulmonary, critical care, and sleep medicine at the Icahn School of Medicine at Mount Sinai, New York, told this news organization. “We’re using something completely different, which raises the possibility this might be something useful for REM behavior disorders.”

The findings, with Mount Sinai assistant professor Korey Kam, PhD, as lead author, were published online in the Journal of Neuroscience.
 

A new model for RBD?

RBD can signal risk for synucleinopathies, a group of neurological conditions such as Parkinson’s disease that involve the formation of clumps of alpha-synuclein protein in the brain.

Prior research on RBD was done in synucleinopathy mouse models. For this study, however, researchers used a tauopathy mouse model to investigate how the abnormal accumulation of tau protein might affect RBD.

Researchers collected data on biophysical properties when the mice were awake and in REM and non-REM sleep. They examined length of sleep, transitions from waking to sleep, and how some factors are related to age.

Nearly a third of the older animals showed behaviors similar to REM sleep behavior disorder in humans, including chewing and limb extension.

But after researchers administered a DORA medication twice during a 24-hour period, they noted that the medication not only helped the animals fall asleep faster and for longer, it also reduced levels of dream enactment that are a hallmark of RBD.
 

The ‘bigger highlight’

Finding RBD behaviors in a tauopathy animal model was surprising, Dr. Varga said, because RBD has been previously linked to synucleinopathies. There was no known correlation between RBD and abnormal accumulation of tau.

Another unexpected finding was the detection of RBD in some of the younger animals, who had not yet shown evidence of tau accumulation.

“It appears to be a biomarker or a signature of something that’s going on that predicts the impending tauopathy at a time where there is very little, or no, tau pathology going on in the brain,” Dr. Varga said.

If RBD is an early predictor of future tau accumulation, the model could guide future prevention and treatment. However, the more important finding is the potential new treatment for the condition.

“The bigger highlight here is less about what’s causing the RBD [than about] what you can do to make it better,” he said.

The next step in the work is to study whether the effect of DORAs on RBD seen in this tauopathy mouse model is evidenced in other animals and whether it is effective in humans with RBD, Dr. Varga said.

The study was funded by the Alzheimer’s Association and Merck Investigator Studies Program. Dr. Kam, Dr. Varga, and coauthors report no relevant financial relationships.

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

Dual orexin receptor antagonists (DORAs), a class of drugs approved to treat insomnia, may also be effective for rapid eye movement sleep behavior disorder (RBD), a study suggests.

About 3 million people in the United States have RBD, which is often a precursor to Parkinson’s disease. People with the disorder act out their dreams by talking, flailing their arms and legs, punching, kicking, and exhibiting other behaviors while asleep.

Researchers used an animal model for the study, which they say is the first to identify a new form of treatment for RBD.

“REM behavior disorder is difficult to treat, and the treatments are mostly limited to clonazepam and melatonin,” which may have side effects, senior investigator Andrew Varga, MD, PhD, associate professor of pulmonary, critical care, and sleep medicine at the Icahn School of Medicine at Mount Sinai, New York, told this news organization. “We’re using something completely different, which raises the possibility this might be something useful for REM behavior disorders.”

The findings, with Mount Sinai assistant professor Korey Kam, PhD, as lead author, were published online in the Journal of Neuroscience.
 

A new model for RBD?

RBD can signal risk for synucleinopathies, a group of neurological conditions such as Parkinson’s disease that involve the formation of clumps of alpha-synuclein protein in the brain.

Prior research on RBD was done in synucleinopathy mouse models. For this study, however, researchers used a tauopathy mouse model to investigate how the abnormal accumulation of tau protein might affect RBD.

Researchers collected data on biophysical properties when the mice were awake and in REM and non-REM sleep. They examined length of sleep, transitions from waking to sleep, and how some factors are related to age.

Nearly a third of the older animals showed behaviors similar to REM sleep behavior disorder in humans, including chewing and limb extension.

But after researchers administered a DORA medication twice during a 24-hour period, they noted that the medication not only helped the animals fall asleep faster and for longer, it also reduced levels of dream enactment that are a hallmark of RBD.
 

The ‘bigger highlight’

Finding RBD behaviors in a tauopathy animal model was surprising, Dr. Varga said, because RBD has been previously linked to synucleinopathies. There was no known correlation between RBD and abnormal accumulation of tau.

Another unexpected finding was the detection of RBD in some of the younger animals, who had not yet shown evidence of tau accumulation.

“It appears to be a biomarker or a signature of something that’s going on that predicts the impending tauopathy at a time where there is very little, or no, tau pathology going on in the brain,” Dr. Varga said.

If RBD is an early predictor of future tau accumulation, the model could guide future prevention and treatment. However, the more important finding is the potential new treatment for the condition.

“The bigger highlight here is less about what’s causing the RBD [than about] what you can do to make it better,” he said.

The next step in the work is to study whether the effect of DORAs on RBD seen in this tauopathy mouse model is evidenced in other animals and whether it is effective in humans with RBD, Dr. Varga said.

The study was funded by the Alzheimer’s Association and Merck Investigator Studies Program. Dr. Kam, Dr. Varga, and coauthors report no relevant financial relationships.

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