Neurology Reviews

This past weekend, because of a series of unfortunate events, I had to move a lot of furniture. This included the bookshelves in my home office. I began by taking books off the shelves to make the bookcase easier to move.

After blowing away a few pounds of dust, I found myself staring at tomes that were once the center of my life: Robbin’s “Pathological Basis of Disease,” Cecil’s “Essentials of Medicine,” Stryer’s “Biochemistry, Grant’s Method of Anatomy,” Stedman’s “Medical Dictionary,” and a few others. All of them more than 30 years old.

I piled the books up on a table as I moved the bookcase, thinking about them. I hadn’t opened any of them in at least 20 years, probably more.

When it was time to put them back, I stared at the pile. They’re big and heavy, qualities that we assume are good things in textbooks. Especially in medical school.

Books have heft. Their knowledge and supposed wisdom are measured by weight and size as you slowly turn the pages under a desk lamp. Not like today, where all the libraries of the world are accessible from a single lightweight iPad.

I remember carrying those books around, stuffed in a backpack draped over my left shoulder. In retrospect it’s amazing I didn’t develop a long thoracic nerve palsy during those years.

They were expensive. I mean, in 1989 dollars, they were all between $50 and $100. I long ago shredded my credit card statements from that era, but my spending for books was pretty high. Fortunately my dad stood behind me for a big chunk of this, and told me to get whatever I needed. Believe me, I know how lucky I am.

I looked at the books. We’d been through a lot together. Long nights at my apartment across the street from Creighton, reading and rereading them. The pages still marked with the yellow highlighter pen that never left my side back then. A younger version of myself traced these pages, committing things to memory that I now have no recollection of. (If you can still draw the Krebs cycle from memory you’re way ahead of me.)

Realistically, though, there was no reason to hold onto them anymore. I’m about two-thirds of the way through my career. If I haven’t opened my old medical textbooks in 20-25 years, the odds are that I’m not going to now.

Plus, they’re out of date. Basic anatomy knowledge hasn’t changed much, but most everything else has. I started med school in 1989, and if I’d been looking things up in 1959 textbooks then, I probably wouldn’t have gotten very far. When I need to look things up these days I go to UpToDate, or Epocrates, or other online sources or apps.

I carried the majority of the books out to the recycling can. (It took a few trips.)

Facing some now-empty space on my bookshelf, I put my next challenge there: A pile of 33-RPM records that I still can’t bring myself to get rid of.

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

This past weekend, because of a series of unfortunate events, I had to move a lot of furniture. This included the bookshelves in my home office. I began by taking books off the shelves to make the bookcase easier to move.

After blowing away a few pounds of dust, I found myself staring at tomes that were once the center of my life: Robbin’s “Pathological Basis of Disease,” Cecil’s “Essentials of Medicine,” Stryer’s “Biochemistry, Grant’s Method of Anatomy,” Stedman’s “Medical Dictionary,” and a few others. All of them more than 30 years old.

I piled the books up on a table as I moved the bookcase, thinking about them. I hadn’t opened any of them in at least 20 years, probably more.

When it was time to put them back, I stared at the pile. They’re big and heavy, qualities that we assume are good things in textbooks. Especially in medical school.

Books have heft. Their knowledge and supposed wisdom are measured by weight and size as you slowly turn the pages under a desk lamp. Not like today, where all the libraries of the world are accessible from a single lightweight iPad.

I remember carrying those books around, stuffed in a backpack draped over my left shoulder. In retrospect it’s amazing I didn’t develop a long thoracic nerve palsy during those years.

They were expensive. I mean, in 1989 dollars, they were all between $50 and $100. I long ago shredded my credit card statements from that era, but my spending for books was pretty high. Fortunately my dad stood behind me for a big chunk of this, and told me to get whatever I needed. Believe me, I know how lucky I am.

I looked at the books. We’d been through a lot together. Long nights at my apartment across the street from Creighton, reading and rereading them. The pages still marked with the yellow highlighter pen that never left my side back then. A younger version of myself traced these pages, committing things to memory that I now have no recollection of. (If you can still draw the Krebs cycle from memory you’re way ahead of me.)

Realistically, though, there was no reason to hold onto them anymore. I’m about two-thirds of the way through my career. If I haven’t opened my old medical textbooks in 20-25 years, the odds are that I’m not going to now.

Plus, they’re out of date. Basic anatomy knowledge hasn’t changed much, but most everything else has. I started med school in 1989, and if I’d been looking things up in 1959 textbooks then, I probably wouldn’t have gotten very far. When I need to look things up these days I go to UpToDate, or Epocrates, or other online sources or apps.

I carried the majority of the books out to the recycling can. (It took a few trips.)

Facing some now-empty space on my bookshelf, I put my next challenge there: A pile of 33-RPM records that I still can’t bring myself to get rid of.

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

This past weekend, because of a series of unfortunate events, I had to move a lot of furniture. This included the bookshelves in my home office. I began by taking books off the shelves to make the bookcase easier to move.

After blowing away a few pounds of dust, I found myself staring at tomes that were once the center of my life: Robbin’s “Pathological Basis of Disease,” Cecil’s “Essentials of Medicine,” Stryer’s “Biochemistry, Grant’s Method of Anatomy,” Stedman’s “Medical Dictionary,” and a few others. All of them more than 30 years old.

I piled the books up on a table as I moved the bookcase, thinking about them. I hadn’t opened any of them in at least 20 years, probably more.

When it was time to put them back, I stared at the pile. They’re big and heavy, qualities that we assume are good things in textbooks. Especially in medical school.

Books have heft. Their knowledge and supposed wisdom are measured by weight and size as you slowly turn the pages under a desk lamp. Not like today, where all the libraries of the world are accessible from a single lightweight iPad.

I remember carrying those books around, stuffed in a backpack draped over my left shoulder. In retrospect it’s amazing I didn’t develop a long thoracic nerve palsy during those years.

They were expensive. I mean, in 1989 dollars, they were all between $50 and $100. I long ago shredded my credit card statements from that era, but my spending for books was pretty high. Fortunately my dad stood behind me for a big chunk of this, and told me to get whatever I needed. Believe me, I know how lucky I am.

I looked at the books. We’d been through a lot together. Long nights at my apartment across the street from Creighton, reading and rereading them. The pages still marked with the yellow highlighter pen that never left my side back then. A younger version of myself traced these pages, committing things to memory that I now have no recollection of. (If you can still draw the Krebs cycle from memory you’re way ahead of me.)

Realistically, though, there was no reason to hold onto them anymore. I’m about two-thirds of the way through my career. If I haven’t opened my old medical textbooks in 20-25 years, the odds are that I’m not going to now.

Plus, they’re out of date. Basic anatomy knowledge hasn’t changed much, but most everything else has. I started med school in 1989, and if I’d been looking things up in 1959 textbooks then, I probably wouldn’t have gotten very far. When I need to look things up these days I go to UpToDate, or Epocrates, or other online sources or apps.

I carried the majority of the books out to the recycling can. (It took a few trips.)

Facing some now-empty space on my bookshelf, I put my next challenge there: A pile of 33-RPM records that I still can’t bring myself to get rid of.

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

NATIONAL HARBOR, MD – How often do patients with multiple sclerosis (MS) end up taking drugs that could dangerously interact with other medications they’re taking? A new German study provides a disturbing hint, a pharmacist who spoke at the annual meeting of the Consortium of Multiple Sclerosis Centers told colleagues: Out of 627 patients who took an average of 5.3 drugs each, about 1 in 25 faced a potentially severe interaction, and nearly two-thirds had at least one potentially risky interaction.

It’s crucial to “work on identifying those interactions,” said Jenelle H. Montgomery, PharmD, of Duke University Hospital, Durham, N.C., and to understand the risks. As she noted, interactions don’t just put patients at risk of adverse effects and hospitalization. They can also lead to secondary comorbidities and therapeutic failures.
 

Newer versus older drugs

Drug interactions in MS have become more common as disease-modifying therapies have evolved, she said. Some older drugs – such as glatiramer acetate, beta-interferons, and fumarates – have low interaction profiles. But newer drugs have more drug interactions caused in part by their side-effect profiles, oral routes of administration, and immunosuppressive instead of immunomodulatory effects, she said. Teriflunomide, for example, interacts with rosuvastatin and warfarin.

S1P modulators are especially complex on the interaction front, Dr. Montgomery said. Cardiology consults are recommended for patients taking siponimod, ozanimod, and ponesimod, and there are a number of potential interactions between these drugs and other medications.

In regard to other MS drugs, other medications can disrupt the metabolism of cladribine, she said, and the manufacturer recommends separating any other oral drug doses by 3 hours. Even MS-related drugs can interact: carbamazepine, used to treat MS-related neuropathic pain, interacts with drugs such as siponimod.
 

Who is most at risk?

How can medical professionals prevent harmful drug interactions in MS? One strategy could be to focus on patients who may be more susceptible. Dr. Montgomery highlighted the kinds of patients who were most at risk of polypharmacy, per the 2022 German study: older people, those with lower education levels, and those with more disability. And she pointed out that 77% of all drug interactions were between prescription drugs. Another 19% were between prescription drugs and over-the-counter medications, and 4% were between OTC drugs.

She also emphasized the importance of asking about everything that a patient is taking, including herbal supplements, as nearly 60% of people aged 20 and over take them, and about 75% of those over 60. A quarter of people over age 60 take at least four supplements.

Information about interactions with supplements isn’t always available, she said, but she did mention concerns about St. John’s wort interactions with siponimod and cladribine.

Dr. Montgomery also offered several tips: Periodically ask patients to bring in medication bottles or pillboxes; encourage annual checkups with primary physicians; and use drug resources such as Facts and Comparisons, Lexicomp, Clinical Pharmacology, Micromedex, and Natural Medicines.

Disclosures for Dr. Montgomery were not available.

NATIONAL HARBOR, MD – How often do patients with multiple sclerosis (MS) end up taking drugs that could dangerously interact with other medications they’re taking? A new German study provides a disturbing hint, a pharmacist who spoke at the annual meeting of the Consortium of Multiple Sclerosis Centers told colleagues: Out of 627 patients who took an average of 5.3 drugs each, about 1 in 25 faced a potentially severe interaction, and nearly two-thirds had at least one potentially risky interaction.

It’s crucial to “work on identifying those interactions,” said Jenelle H. Montgomery, PharmD, of Duke University Hospital, Durham, N.C., and to understand the risks. As she noted, interactions don’t just put patients at risk of adverse effects and hospitalization. They can also lead to secondary comorbidities and therapeutic failures.
 

Newer versus older drugs

Drug interactions in MS have become more common as disease-modifying therapies have evolved, she said. Some older drugs – such as glatiramer acetate, beta-interferons, and fumarates – have low interaction profiles. But newer drugs have more drug interactions caused in part by their side-effect profiles, oral routes of administration, and immunosuppressive instead of immunomodulatory effects, she said. Teriflunomide, for example, interacts with rosuvastatin and warfarin.

S1P modulators are especially complex on the interaction front, Dr. Montgomery said. Cardiology consults are recommended for patients taking siponimod, ozanimod, and ponesimod, and there are a number of potential interactions between these drugs and other medications.

In regard to other MS drugs, other medications can disrupt the metabolism of cladribine, she said, and the manufacturer recommends separating any other oral drug doses by 3 hours. Even MS-related drugs can interact: carbamazepine, used to treat MS-related neuropathic pain, interacts with drugs such as siponimod.
 

Who is most at risk?

How can medical professionals prevent harmful drug interactions in MS? One strategy could be to focus on patients who may be more susceptible. Dr. Montgomery highlighted the kinds of patients who were most at risk of polypharmacy, per the 2022 German study: older people, those with lower education levels, and those with more disability. And she pointed out that 77% of all drug interactions were between prescription drugs. Another 19% were between prescription drugs and over-the-counter medications, and 4% were between OTC drugs.

She also emphasized the importance of asking about everything that a patient is taking, including herbal supplements, as nearly 60% of people aged 20 and over take them, and about 75% of those over 60. A quarter of people over age 60 take at least four supplements.

Information about interactions with supplements isn’t always available, she said, but she did mention concerns about St. John’s wort interactions with siponimod and cladribine.

Dr. Montgomery also offered several tips: Periodically ask patients to bring in medication bottles or pillboxes; encourage annual checkups with primary physicians; and use drug resources such as Facts and Comparisons, Lexicomp, Clinical Pharmacology, Micromedex, and Natural Medicines.

Disclosures for Dr. Montgomery were not available.

NATIONAL HARBOR, MD – How often do patients with multiple sclerosis (MS) end up taking drugs that could dangerously interact with other medications they’re taking? A new German study provides a disturbing hint, a pharmacist who spoke at the annual meeting of the Consortium of Multiple Sclerosis Centers told colleagues: Out of 627 patients who took an average of 5.3 drugs each, about 1 in 25 faced a potentially severe interaction, and nearly two-thirds had at least one potentially risky interaction.

It’s crucial to “work on identifying those interactions,” said Jenelle H. Montgomery, PharmD, of Duke University Hospital, Durham, N.C., and to understand the risks. As she noted, interactions don’t just put patients at risk of adverse effects and hospitalization. They can also lead to secondary comorbidities and therapeutic failures.
 

Newer versus older drugs

Drug interactions in MS have become more common as disease-modifying therapies have evolved, she said. Some older drugs – such as glatiramer acetate, beta-interferons, and fumarates – have low interaction profiles. But newer drugs have more drug interactions caused in part by their side-effect profiles, oral routes of administration, and immunosuppressive instead of immunomodulatory effects, she said. Teriflunomide, for example, interacts with rosuvastatin and warfarin.

S1P modulators are especially complex on the interaction front, Dr. Montgomery said. Cardiology consults are recommended for patients taking siponimod, ozanimod, and ponesimod, and there are a number of potential interactions between these drugs and other medications.

In regard to other MS drugs, other medications can disrupt the metabolism of cladribine, she said, and the manufacturer recommends separating any other oral drug doses by 3 hours. Even MS-related drugs can interact: carbamazepine, used to treat MS-related neuropathic pain, interacts with drugs such as siponimod.
 

Who is most at risk?

How can medical professionals prevent harmful drug interactions in MS? One strategy could be to focus on patients who may be more susceptible. Dr. Montgomery highlighted the kinds of patients who were most at risk of polypharmacy, per the 2022 German study: older people, those with lower education levels, and those with more disability. And she pointed out that 77% of all drug interactions were between prescription drugs. Another 19% were between prescription drugs and over-the-counter medications, and 4% were between OTC drugs.

She also emphasized the importance of asking about everything that a patient is taking, including herbal supplements, as nearly 60% of people aged 20 and over take them, and about 75% of those over 60. A quarter of people over age 60 take at least four supplements.

Information about interactions with supplements isn’t always available, she said, but she did mention concerns about St. John’s wort interactions with siponimod and cladribine.

Dr. Montgomery also offered several tips: Periodically ask patients to bring in medication bottles or pillboxes; encourage annual checkups with primary physicians; and use drug resources such as Facts and Comparisons, Lexicomp, Clinical Pharmacology, Micromedex, and Natural Medicines.

Disclosures for Dr. Montgomery were not available.

NATIONAL HARBOR, MD. – Treatment guidelines are helpful in treating relapsing-remitting multiple sclerosis (RRMS), a neurologist told colleagues, but they’re only useful to an extent. Consider his 40-year-old female patient who’s averse to vaccines, often misses appointments, and seems to be unable to take blood pressure drugs as prescribed. In this case, the best strategy may not be the drug with the highest efficacy.

“There’s no pharmaceutical insert that’s going to tell you what to do with all of this information,” John R. Rinker II, MD, of the University of Alabama at Birmingham, said in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. “It’s important to not only know about the disease and the specifics of the pharmaceuticals, but also about the patient’s personal circumstances, their comorbidities, their social situation, and how it all ties together.”

Fortunately, he said, there are about two dozen medication options now available for RRMS. Noting that his scale is at best “a crude approximation of reality,” he said their efficacy runs the gamut from low (glatiramer acetate and beta-interferons) to high (cladribine, alemtuzumab). He places sphingosine-1 phosphate (SIP1) modulators in the mid-range in terms of efficacy and B cell-depleting agents and natalizumab toward the high side.
 

Why go low?

Why put someone on a low-efficacy drug? One reason is because they’re the safest options, he said, while the two highest-efficacy drugs – cladribine and alemtuzumab – are the least safe. But even the older, safer drugs can cause problems: Beta interferons can cause flu-like symptoms early on along with depression and miscarriage, and glatiramer acetate can spur injection site reactions and acute post injection syndrome “that can feel like a panic attack or even a heart attack.”

Dimethyl fumarate “is probably the easiest of the oral agents to initiate because there’s no extra doctor’s appointments. And there’s no concerns really about hair loss, liver failure, or birth defects,” he said. “But it’s one of the oral agents that has the most side effects associated with it.” Flushing is almost universal but “rarely a cause of discontinuation,” while gastrointestinal symptoms can lead to discontinuation.

Alemtuzumab, a high-efficacy drug that’s administered in two annual cycles, he said, is especially convenient but monthly labs are required for years to check for problems due to its dampening of the immune system. Patients on ocrelizumab must be closely monitored for the same reason.

There are other factors to consider. Lower-efficacy drugs tend to be better options in younger patients – “they’re more resilient, and they tend to recover a little bit better after their early relapses,” Dr. Rinker said.

The drugs are especially helpful in patients who recover well after their initial episodes and who have sensory instead of motor symptoms, he said.
 

The case for high efficacy

Higher-efficacy drugs are best for older patients and those with heavy disease burden.

What about the 40-year-old patient? She’s female (women get less sick from MS) and has low disease burden, suggesting that a lower-efficacy drug may be appropriate, he said. “On the other hand, she has an incomplete recovery, and she’s got spinal cord disease and motor symptoms, so the tendency is going to be more towards the higher-efficacy end of the [drug] spectrum.”

But which drug? S1P modulators aren’t a good option since they require redosing or titration if doses are missed: “It’s important that you don’t prescribe them to patients where you have concerns about compliance.”

Also, he said, “we don’t think we’re to the point that we’re willing to put her at risk of severe medical complications by putting her on medicines with a high monitoring burden like cladribine or alemtuzumab.”

The best option may be teriflunomide, a once-daily pill, he said. It’s forgiving if a patient misses a dose since the medication stays in the body for a long time.

“There’s no single right answer,” Dr. Rinker said. “But there are ways to eliminate a lot of the choices based upon what we know about the medications and what we know about the patient. Then we can tailor a specific range of medications for a specific patient.”

Dr. Rinker disclosed research support from GW Pharmaceuticals.

NATIONAL HARBOR, MD. – Treatment guidelines are helpful in treating relapsing-remitting multiple sclerosis (RRMS), a neurologist told colleagues, but they’re only useful to an extent. Consider his 40-year-old female patient who’s averse to vaccines, often misses appointments, and seems to be unable to take blood pressure drugs as prescribed. In this case, the best strategy may not be the drug with the highest efficacy.

“There’s no pharmaceutical insert that’s going to tell you what to do with all of this information,” John R. Rinker II, MD, of the University of Alabama at Birmingham, said in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. “It’s important to not only know about the disease and the specifics of the pharmaceuticals, but also about the patient’s personal circumstances, their comorbidities, their social situation, and how it all ties together.”

Fortunately, he said, there are about two dozen medication options now available for RRMS. Noting that his scale is at best “a crude approximation of reality,” he said their efficacy runs the gamut from low (glatiramer acetate and beta-interferons) to high (cladribine, alemtuzumab). He places sphingosine-1 phosphate (SIP1) modulators in the mid-range in terms of efficacy and B cell-depleting agents and natalizumab toward the high side.
 

Why go low?

Why put someone on a low-efficacy drug? One reason is because they’re the safest options, he said, while the two highest-efficacy drugs – cladribine and alemtuzumab – are the least safe. But even the older, safer drugs can cause problems: Beta interferons can cause flu-like symptoms early on along with depression and miscarriage, and glatiramer acetate can spur injection site reactions and acute post injection syndrome “that can feel like a panic attack or even a heart attack.”

Dimethyl fumarate “is probably the easiest of the oral agents to initiate because there’s no extra doctor’s appointments. And there’s no concerns really about hair loss, liver failure, or birth defects,” he said. “But it’s one of the oral agents that has the most side effects associated with it.” Flushing is almost universal but “rarely a cause of discontinuation,” while gastrointestinal symptoms can lead to discontinuation.

Alemtuzumab, a high-efficacy drug that’s administered in two annual cycles, he said, is especially convenient but monthly labs are required for years to check for problems due to its dampening of the immune system. Patients on ocrelizumab must be closely monitored for the same reason.

There are other factors to consider. Lower-efficacy drugs tend to be better options in younger patients – “they’re more resilient, and they tend to recover a little bit better after their early relapses,” Dr. Rinker said.

The drugs are especially helpful in patients who recover well after their initial episodes and who have sensory instead of motor symptoms, he said.
 

The case for high efficacy

Higher-efficacy drugs are best for older patients and those with heavy disease burden.

What about the 40-year-old patient? She’s female (women get less sick from MS) and has low disease burden, suggesting that a lower-efficacy drug may be appropriate, he said. “On the other hand, she has an incomplete recovery, and she’s got spinal cord disease and motor symptoms, so the tendency is going to be more towards the higher-efficacy end of the [drug] spectrum.”

But which drug? S1P modulators aren’t a good option since they require redosing or titration if doses are missed: “It’s important that you don’t prescribe them to patients where you have concerns about compliance.”

Also, he said, “we don’t think we’re to the point that we’re willing to put her at risk of severe medical complications by putting her on medicines with a high monitoring burden like cladribine or alemtuzumab.”

The best option may be teriflunomide, a once-daily pill, he said. It’s forgiving if a patient misses a dose since the medication stays in the body for a long time.

“There’s no single right answer,” Dr. Rinker said. “But there are ways to eliminate a lot of the choices based upon what we know about the medications and what we know about the patient. Then we can tailor a specific range of medications for a specific patient.”

Dr. Rinker disclosed research support from GW Pharmaceuticals.

NATIONAL HARBOR, MD. – Treatment guidelines are helpful in treating relapsing-remitting multiple sclerosis (RRMS), a neurologist told colleagues, but they’re only useful to an extent. Consider his 40-year-old female patient who’s averse to vaccines, often misses appointments, and seems to be unable to take blood pressure drugs as prescribed. In this case, the best strategy may not be the drug with the highest efficacy.

“There’s no pharmaceutical insert that’s going to tell you what to do with all of this information,” John R. Rinker II, MD, of the University of Alabama at Birmingham, said in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. “It’s important to not only know about the disease and the specifics of the pharmaceuticals, but also about the patient’s personal circumstances, their comorbidities, their social situation, and how it all ties together.”

Fortunately, he said, there are about two dozen medication options now available for RRMS. Noting that his scale is at best “a crude approximation of reality,” he said their efficacy runs the gamut from low (glatiramer acetate and beta-interferons) to high (cladribine, alemtuzumab). He places sphingosine-1 phosphate (SIP1) modulators in the mid-range in terms of efficacy and B cell-depleting agents and natalizumab toward the high side.
 

Why go low?

Why put someone on a low-efficacy drug? One reason is because they’re the safest options, he said, while the two highest-efficacy drugs – cladribine and alemtuzumab – are the least safe. But even the older, safer drugs can cause problems: Beta interferons can cause flu-like symptoms early on along with depression and miscarriage, and glatiramer acetate can spur injection site reactions and acute post injection syndrome “that can feel like a panic attack or even a heart attack.”

Dimethyl fumarate “is probably the easiest of the oral agents to initiate because there’s no extra doctor’s appointments. And there’s no concerns really about hair loss, liver failure, or birth defects,” he said. “But it’s one of the oral agents that has the most side effects associated with it.” Flushing is almost universal but “rarely a cause of discontinuation,” while gastrointestinal symptoms can lead to discontinuation.

Alemtuzumab, a high-efficacy drug that’s administered in two annual cycles, he said, is especially convenient but monthly labs are required for years to check for problems due to its dampening of the immune system. Patients on ocrelizumab must be closely monitored for the same reason.

There are other factors to consider. Lower-efficacy drugs tend to be better options in younger patients – “they’re more resilient, and they tend to recover a little bit better after their early relapses,” Dr. Rinker said.

The drugs are especially helpful in patients who recover well after their initial episodes and who have sensory instead of motor symptoms, he said.
 

The case for high efficacy

Higher-efficacy drugs are best for older patients and those with heavy disease burden.

What about the 40-year-old patient? She’s female (women get less sick from MS) and has low disease burden, suggesting that a lower-efficacy drug may be appropriate, he said. “On the other hand, she has an incomplete recovery, and she’s got spinal cord disease and motor symptoms, so the tendency is going to be more towards the higher-efficacy end of the [drug] spectrum.”

But which drug? S1P modulators aren’t a good option since they require redosing or titration if doses are missed: “It’s important that you don’t prescribe them to patients where you have concerns about compliance.”

Also, he said, “we don’t think we’re to the point that we’re willing to put her at risk of severe medical complications by putting her on medicines with a high monitoring burden like cladribine or alemtuzumab.”

The best option may be teriflunomide, a once-daily pill, he said. It’s forgiving if a patient misses a dose since the medication stays in the body for a long time.

“There’s no single right answer,” Dr. Rinker said. “But there are ways to eliminate a lot of the choices based upon what we know about the medications and what we know about the patient. Then we can tailor a specific range of medications for a specific patient.”

Dr. Rinker disclosed research support from GW Pharmaceuticals.

Herpes zoster does not appear to increase dementia risk – on the contrary, the viral infection may offer some protection, a large population-based study suggests.

“We were surprised by these results [and] the reasons for the decreased risk are unclear,” study author Sigrun Alba Johannesdottir Schmidt, MD, PhD, with Aarhus (Denmark) University Hospital, said in a news release.

The study was published online in Neurology.
 

Conflicting findings

Herpes zoster (HZ) is an acute, cutaneous viral infection caused by the reactivation of varicella-zoster virus (VZV). Previous population-based studies have reported both decreased and increased risks of dementia after having HZ.

It’s thought that HZ may contribute to the development of dementia through neuroinflammation, cerebral vasculopathy, or direct neural damage, but epidemiologic evidence is limited.

To investigate further, Dr. Schmidt and colleagues used Danish medical registries to identify 247,305 people who had visited a hospital for HZ or were prescribed antiviral medication for HZ over a 20-year period and matched them to 1,235,890 people who did not have HZ. For both cohorts, the median age was 64 years, and 61% were women.

Dementia was diagnosed in 9.7% of zoster patients and 10.3% of matched control persons during up to 21 years of follow-up.

Contrary to the researchers’ expectation, HZ was associated with a small (7%) decreased relative risk of all-cause dementia during follow-up (hazard ratio, 0.93; 95% confidence interval, 0.90-0.95).

There was no increased long-term risk of dementia in subgroup analyses, except possibly among those with HZ that involved the central nervous system (HR, 1.94; 95% CI, 0.78-4.80), which has been shown before.

However, the population attributable fraction of dementia caused by this rare complication is low (< 1%), suggesting that universal vaccination against VZV in the elderly has limited potential to reduce dementia risk, the investigators noted.

Nonetheless, Dr. Schmidt said shingles vaccination should be encouraged in older people because it can prevent complications from the disease.

The research team admitted that the slightly decreased long-term risk of dementia, including Alzheimer’s disease, was “unexpected.” The reasons for this decreased risk are unclear, they say, and could be explained by missed diagnoses of shingles in people with undiagnosed dementia.

They were not able to examine whether antiviral treatment modifies the association between HZ and dementia and said that this topic merits further research.

The study was supported by the Edel and Wilhelm Daubenmerkls Charitable Foundation. The authors disclosed no relevant financial relationships.

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

Herpes zoster does not appear to increase dementia risk – on the contrary, the viral infection may offer some protection, a large population-based study suggests.

“We were surprised by these results [and] the reasons for the decreased risk are unclear,” study author Sigrun Alba Johannesdottir Schmidt, MD, PhD, with Aarhus (Denmark) University Hospital, said in a news release.

The study was published online in Neurology.
 

Conflicting findings

Herpes zoster (HZ) is an acute, cutaneous viral infection caused by the reactivation of varicella-zoster virus (VZV). Previous population-based studies have reported both decreased and increased risks of dementia after having HZ.

It’s thought that HZ may contribute to the development of dementia through neuroinflammation, cerebral vasculopathy, or direct neural damage, but epidemiologic evidence is limited.

To investigate further, Dr. Schmidt and colleagues used Danish medical registries to identify 247,305 people who had visited a hospital for HZ or were prescribed antiviral medication for HZ over a 20-year period and matched them to 1,235,890 people who did not have HZ. For both cohorts, the median age was 64 years, and 61% were women.

Dementia was diagnosed in 9.7% of zoster patients and 10.3% of matched control persons during up to 21 years of follow-up.

Contrary to the researchers’ expectation, HZ was associated with a small (7%) decreased relative risk of all-cause dementia during follow-up (hazard ratio, 0.93; 95% confidence interval, 0.90-0.95).

There was no increased long-term risk of dementia in subgroup analyses, except possibly among those with HZ that involved the central nervous system (HR, 1.94; 95% CI, 0.78-4.80), which has been shown before.

However, the population attributable fraction of dementia caused by this rare complication is low (< 1%), suggesting that universal vaccination against VZV in the elderly has limited potential to reduce dementia risk, the investigators noted.

Nonetheless, Dr. Schmidt said shingles vaccination should be encouraged in older people because it can prevent complications from the disease.

The research team admitted that the slightly decreased long-term risk of dementia, including Alzheimer’s disease, was “unexpected.” The reasons for this decreased risk are unclear, they say, and could be explained by missed diagnoses of shingles in people with undiagnosed dementia.

They were not able to examine whether antiviral treatment modifies the association between HZ and dementia and said that this topic merits further research.

The study was supported by the Edel and Wilhelm Daubenmerkls Charitable Foundation. The authors disclosed no relevant financial relationships.

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

Herpes zoster does not appear to increase dementia risk – on the contrary, the viral infection may offer some protection, a large population-based study suggests.

“We were surprised by these results [and] the reasons for the decreased risk are unclear,” study author Sigrun Alba Johannesdottir Schmidt, MD, PhD, with Aarhus (Denmark) University Hospital, said in a news release.

The study was published online in Neurology.
 

Conflicting findings

Herpes zoster (HZ) is an acute, cutaneous viral infection caused by the reactivation of varicella-zoster virus (VZV). Previous population-based studies have reported both decreased and increased risks of dementia after having HZ.

It’s thought that HZ may contribute to the development of dementia through neuroinflammation, cerebral vasculopathy, or direct neural damage, but epidemiologic evidence is limited.

To investigate further, Dr. Schmidt and colleagues used Danish medical registries to identify 247,305 people who had visited a hospital for HZ or were prescribed antiviral medication for HZ over a 20-year period and matched them to 1,235,890 people who did not have HZ. For both cohorts, the median age was 64 years, and 61% were women.

Dementia was diagnosed in 9.7% of zoster patients and 10.3% of matched control persons during up to 21 years of follow-up.

Contrary to the researchers’ expectation, HZ was associated with a small (7%) decreased relative risk of all-cause dementia during follow-up (hazard ratio, 0.93; 95% confidence interval, 0.90-0.95).

There was no increased long-term risk of dementia in subgroup analyses, except possibly among those with HZ that involved the central nervous system (HR, 1.94; 95% CI, 0.78-4.80), which has been shown before.

However, the population attributable fraction of dementia caused by this rare complication is low (< 1%), suggesting that universal vaccination against VZV in the elderly has limited potential to reduce dementia risk, the investigators noted.

Nonetheless, Dr. Schmidt said shingles vaccination should be encouraged in older people because it can prevent complications from the disease.

The research team admitted that the slightly decreased long-term risk of dementia, including Alzheimer’s disease, was “unexpected.” The reasons for this decreased risk are unclear, they say, and could be explained by missed diagnoses of shingles in people with undiagnosed dementia.

They were not able to examine whether antiviral treatment modifies the association between HZ and dementia and said that this topic merits further research.

The study was supported by the Edel and Wilhelm Daubenmerkls Charitable Foundation. The authors disclosed no relevant financial relationships.

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

CHARLOTTE, N.C. – Overnight sleep electroencephalography (EEG) contains an abundance of brain wave data that could be mined to identify an individual’s risk for a host of health outcomes, including dementia, cognitive impairment, and cardiovascular events, a researcher reported at the annual meeting of the Associated Professional Sleep Societies. “Sleep EEGs contain decodable information about the risk of unfavorable outcomes,” said Haoqi Sun, PhD, an instructor of neurology at Massachusetts General Hospital, Boston, and lead study author. “The results suggest that it’s feasible to use sleep to identify people with high risk of unfavorable outcomes and it strengthens the concept of sleep as a window into brain and general health.”

The researchers performed a quantitative analysis of sleep data collected on 8,673 adults who had diagnostic sleep studies that included polysomnography (PSG). The analysis used ICD codes to consider these 11 health outcomes: dementia, mild cognitive impairment (MCI) or dementia, ischemic stroke, intracranial hemorrhage, atrial fibrillation, myocardial infarction, type 2 diabetes, hypertension, bipolar disorder, depression, and mortality.

Then, Dr. Sun explained, they extracted 86 spectral and time-domain features of REM and non-REM sleep from sleep EEG recordings, and analyzed that data by adjusting for eight covariates including age, sex, body mass index, and use of benzodiazepines, antidepressants, sedatives, antiseizure drugs, and stimulants.

Participants were partitioned into three sleep-quality groups: poor, average, and good. The outcome-wise mean prediction difference in 10-year cumulative incidence was 2.3% for the poor sleep group, 0.5% for the average sleep group, and 1.3% for the good sleep group.

The outcomes with the three greatest poor to average risk ratios were dementia (6.2; 95% confidence interval, 4.5-9.3), mortality (5.7; 95% CI, 5-7.5) and MCI or dementia (4; 95% CI, 3.2-4.9).
 

Ready for the clinic?

In an interview, Dr. Sun said the results demonstrated the potential of using EEG brain wave data to predict health outcomes on an individual basis, although he acknowledged that most of the 86 sleep features the researchers used are not readily available in the clinic.

He noted the spectral features used in the study can be captured through software compatible with PSG. “From there you can identify the various bands, the different frequency ranges, and then you can easily see within this range whether a person has a higher power or lower power,” he said. However, the spindle and slow-oscillation features that researchers used in the study are beyond the reach of most clinics.
 

Next steps

This research is in its early stage, Dr. Sun said, but at some point the data collected from sleep studies could be paired with machine learning to make the model workable for evaluating individual patients. “Our goal is to first make this individualized,” he said. “We want to minimize the noise in the recording and minimize the night-to-night variability in the findings. There is some clinical-informed approach and there is also some algorithm-informed approach where you can minimize the variation over time.”

The model also has the potential to predict outcomes, particularly with chronic diseases such as diabetes and dementia, well before a diagnosis is made, he said.
 

‘Fascinating’ and ‘provocative’

Donald Bliwise, PhD, professor of neurology at Emory Sleep Center in Atlanta, said the study was “fascinating; it’s provocative; it’s exciting and interesting,” but added, “Sleep is vital for health. That’s abundantly clear in a study like that, but trying to push it a little bit further with all of these 86 measurements of the EEG, I think it becomes complicated.”

The study methodology, particularly the use of cumulative incidence of various diseases, was laudable, he said, and the use of simpler EEG-measured sleep features, such as alpha band power, “make intuitive sense.”

But it’s less clear on how the more sophisticated features the study model used – for example, kurtosis of theta frequency or coupling between spindle and slow oscillation – rank on sleep quality, he said, adding that the researchers have most likely done that but couldn’t add that into the format of the presentation.

“Kurtosis of the theta frequency band we don’t get on everyone in the sleep lab,” Dr. Bliwise said. “We might be able to, but I don’t know how to quite plug that into a turnkey model.”

The clinical components of the study were conducted by M. Brandon Westover, MD, PhD, at Massachusetts General Hospital, and Robert J. Thomas, MD, at Beth Israel Deaconess Medical Center, both in Boston. The study received support from the American Academy of Sleep Medicine Foundation. Dr. Sun has no relevant disclosures. Dr. Bliwise has no disclosures.

CHARLOTTE, N.C. – Overnight sleep electroencephalography (EEG) contains an abundance of brain wave data that could be mined to identify an individual’s risk for a host of health outcomes, including dementia, cognitive impairment, and cardiovascular events, a researcher reported at the annual meeting of the Associated Professional Sleep Societies. “Sleep EEGs contain decodable information about the risk of unfavorable outcomes,” said Haoqi Sun, PhD, an instructor of neurology at Massachusetts General Hospital, Boston, and lead study author. “The results suggest that it’s feasible to use sleep to identify people with high risk of unfavorable outcomes and it strengthens the concept of sleep as a window into brain and general health.”

The researchers performed a quantitative analysis of sleep data collected on 8,673 adults who had diagnostic sleep studies that included polysomnography (PSG). The analysis used ICD codes to consider these 11 health outcomes: dementia, mild cognitive impairment (MCI) or dementia, ischemic stroke, intracranial hemorrhage, atrial fibrillation, myocardial infarction, type 2 diabetes, hypertension, bipolar disorder, depression, and mortality.

Then, Dr. Sun explained, they extracted 86 spectral and time-domain features of REM and non-REM sleep from sleep EEG recordings, and analyzed that data by adjusting for eight covariates including age, sex, body mass index, and use of benzodiazepines, antidepressants, sedatives, antiseizure drugs, and stimulants.

Participants were partitioned into three sleep-quality groups: poor, average, and good. The outcome-wise mean prediction difference in 10-year cumulative incidence was 2.3% for the poor sleep group, 0.5% for the average sleep group, and 1.3% for the good sleep group.

The outcomes with the three greatest poor to average risk ratios were dementia (6.2; 95% confidence interval, 4.5-9.3), mortality (5.7; 95% CI, 5-7.5) and MCI or dementia (4; 95% CI, 3.2-4.9).
 

Ready for the clinic?

In an interview, Dr. Sun said the results demonstrated the potential of using EEG brain wave data to predict health outcomes on an individual basis, although he acknowledged that most of the 86 sleep features the researchers used are not readily available in the clinic.

He noted the spectral features used in the study can be captured through software compatible with PSG. “From there you can identify the various bands, the different frequency ranges, and then you can easily see within this range whether a person has a higher power or lower power,” he said. However, the spindle and slow-oscillation features that researchers used in the study are beyond the reach of most clinics.
 

Next steps

This research is in its early stage, Dr. Sun said, but at some point the data collected from sleep studies could be paired with machine learning to make the model workable for evaluating individual patients. “Our goal is to first make this individualized,” he said. “We want to minimize the noise in the recording and minimize the night-to-night variability in the findings. There is some clinical-informed approach and there is also some algorithm-informed approach where you can minimize the variation over time.”

The model also has the potential to predict outcomes, particularly with chronic diseases such as diabetes and dementia, well before a diagnosis is made, he said.
 

‘Fascinating’ and ‘provocative’

Donald Bliwise, PhD, professor of neurology at Emory Sleep Center in Atlanta, said the study was “fascinating; it’s provocative; it’s exciting and interesting,” but added, “Sleep is vital for health. That’s abundantly clear in a study like that, but trying to push it a little bit further with all of these 86 measurements of the EEG, I think it becomes complicated.”

The study methodology, particularly the use of cumulative incidence of various diseases, was laudable, he said, and the use of simpler EEG-measured sleep features, such as alpha band power, “make intuitive sense.”

But it’s less clear on how the more sophisticated features the study model used – for example, kurtosis of theta frequency or coupling between spindle and slow oscillation – rank on sleep quality, he said, adding that the researchers have most likely done that but couldn’t add that into the format of the presentation.

“Kurtosis of the theta frequency band we don’t get on everyone in the sleep lab,” Dr. Bliwise said. “We might be able to, but I don’t know how to quite plug that into a turnkey model.”

The clinical components of the study were conducted by M. Brandon Westover, MD, PhD, at Massachusetts General Hospital, and Robert J. Thomas, MD, at Beth Israel Deaconess Medical Center, both in Boston. The study received support from the American Academy of Sleep Medicine Foundation. Dr. Sun has no relevant disclosures. Dr. Bliwise has no disclosures.

CHARLOTTE, N.C. – Overnight sleep electroencephalography (EEG) contains an abundance of brain wave data that could be mined to identify an individual’s risk for a host of health outcomes, including dementia, cognitive impairment, and cardiovascular events, a researcher reported at the annual meeting of the Associated Professional Sleep Societies. “Sleep EEGs contain decodable information about the risk of unfavorable outcomes,” said Haoqi Sun, PhD, an instructor of neurology at Massachusetts General Hospital, Boston, and lead study author. “The results suggest that it’s feasible to use sleep to identify people with high risk of unfavorable outcomes and it strengthens the concept of sleep as a window into brain and general health.”

The researchers performed a quantitative analysis of sleep data collected on 8,673 adults who had diagnostic sleep studies that included polysomnography (PSG). The analysis used ICD codes to consider these 11 health outcomes: dementia, mild cognitive impairment (MCI) or dementia, ischemic stroke, intracranial hemorrhage, atrial fibrillation, myocardial infarction, type 2 diabetes, hypertension, bipolar disorder, depression, and mortality.

Then, Dr. Sun explained, they extracted 86 spectral and time-domain features of REM and non-REM sleep from sleep EEG recordings, and analyzed that data by adjusting for eight covariates including age, sex, body mass index, and use of benzodiazepines, antidepressants, sedatives, antiseizure drugs, and stimulants.

Participants were partitioned into three sleep-quality groups: poor, average, and good. The outcome-wise mean prediction difference in 10-year cumulative incidence was 2.3% for the poor sleep group, 0.5% for the average sleep group, and 1.3% for the good sleep group.

The outcomes with the three greatest poor to average risk ratios were dementia (6.2; 95% confidence interval, 4.5-9.3), mortality (5.7; 95% CI, 5-7.5) and MCI or dementia (4; 95% CI, 3.2-4.9).
 

Ready for the clinic?

In an interview, Dr. Sun said the results demonstrated the potential of using EEG brain wave data to predict health outcomes on an individual basis, although he acknowledged that most of the 86 sleep features the researchers used are not readily available in the clinic.

He noted the spectral features used in the study can be captured through software compatible with PSG. “From there you can identify the various bands, the different frequency ranges, and then you can easily see within this range whether a person has a higher power or lower power,” he said. However, the spindle and slow-oscillation features that researchers used in the study are beyond the reach of most clinics.
 

Next steps

This research is in its early stage, Dr. Sun said, but at some point the data collected from sleep studies could be paired with machine learning to make the model workable for evaluating individual patients. “Our goal is to first make this individualized,” he said. “We want to minimize the noise in the recording and minimize the night-to-night variability in the findings. There is some clinical-informed approach and there is also some algorithm-informed approach where you can minimize the variation over time.”

The model also has the potential to predict outcomes, particularly with chronic diseases such as diabetes and dementia, well before a diagnosis is made, he said.
 

‘Fascinating’ and ‘provocative’

Donald Bliwise, PhD, professor of neurology at Emory Sleep Center in Atlanta, said the study was “fascinating; it’s provocative; it’s exciting and interesting,” but added, “Sleep is vital for health. That’s abundantly clear in a study like that, but trying to push it a little bit further with all of these 86 measurements of the EEG, I think it becomes complicated.”

The study methodology, particularly the use of cumulative incidence of various diseases, was laudable, he said, and the use of simpler EEG-measured sleep features, such as alpha band power, “make intuitive sense.”

But it’s less clear on how the more sophisticated features the study model used – for example, kurtosis of theta frequency or coupling between spindle and slow oscillation – rank on sleep quality, he said, adding that the researchers have most likely done that but couldn’t add that into the format of the presentation.

“Kurtosis of the theta frequency band we don’t get on everyone in the sleep lab,” Dr. Bliwise said. “We might be able to, but I don’t know how to quite plug that into a turnkey model.”

The clinical components of the study were conducted by M. Brandon Westover, MD, PhD, at Massachusetts General Hospital, and Robert J. Thomas, MD, at Beth Israel Deaconess Medical Center, both in Boston. The study received support from the American Academy of Sleep Medicine Foundation. Dr. Sun has no relevant disclosures. Dr. Bliwise has no disclosures.

NATIONAL HARBOR, MD – Just 2 days before she spoke in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers, University of Colorado neurologist Anna Shah, MD, asked a 26-year-old patient with MS about whether she planned to have children. Absolutely not, the young woman replied. “I read online that I can give birth to a baby with MS, which is crazy.”

The patient didn’t understand the risk of having a child with MS – it’s thought to be 2%-5% if one parent has the condition – but she wouldn’t have learned the facts if Dr. Shah hadn’t asked the right questions. “It’s really important for us as a community to know how to be proactive with discussions [about pregnancy],” she said.

As she noted, an estimated 75% of patients with MS are women, most are diagnosed during prime child-bearing years, and many pregnancies in general – an estimated half – are not planned. And while a higher percentage of women with MS are having children than in the past, she said, misinformation remains common. In fact, physicians can be part of the problem.

Dr. Shaw highlighted a 2019 Italian survey that found that 16% of 395 people with MS reported that they were discouraged from having children, mainly by medical professionals, after their diagnosis. Seven percent said they never wanted to become parents because of their MS. A 2021 survey of 332 patients with MS in the United States, United Kingdom, France, Germany, Italy, and Spain, found that 56% reported that MS played a role in their decisions about family planning, and 14% of those decided not to have children.

In regard to women of child-bearing age, Dr. Shah recommends that family planning and contraception should be discussed at the initial visit and every subsequent visit. Open-ended, individualized questions are key. “We don’t know what patients don’t share with us,” she said.

Make sure to consider the timing of any plans to have children, she said. If the patient wants to have children within a year, talk about matters such as whether disease activity is well-controlled (6-12 months of good control is ideal) and whether current disease-modifying therapies are safe. Make sure to get a baseline prepartum MRI scan, she said.

If the patients don’t want to have children, make sure they are using a reliable strategy to avoid conception. Be aware that modafinil – “not one that immediately comes to mind” – may decrease the efficacy of oral contraceptives, she said, as can anticonvulsants (phenytoin, carbamazepine, oxcarbazepine, topiramate, and primidone). Oral contraceptives, meanwhile, may decrease levels of lamotrigine.

What if a patient has trouble conceiving? There are some hints in research that MS may boost the risk of infertility in women, Dr. Shah said. That’s why she recommends that colleagues consider referring a patient to an infertility specialist after attempting conception for 6 months as opposed to the general recommendation for 12 months.

Dr. Shah disclosed advisory board service (Genentech) and development of nonbranded educational programming through Novartis and the National Committee for Quality Assurance.

NATIONAL HARBOR, MD – Just 2 days before she spoke in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers, University of Colorado neurologist Anna Shah, MD, asked a 26-year-old patient with MS about whether she planned to have children. Absolutely not, the young woman replied. “I read online that I can give birth to a baby with MS, which is crazy.”

The patient didn’t understand the risk of having a child with MS – it’s thought to be 2%-5% if one parent has the condition – but she wouldn’t have learned the facts if Dr. Shah hadn’t asked the right questions. “It’s really important for us as a community to know how to be proactive with discussions [about pregnancy],” she said.

As she noted, an estimated 75% of patients with MS are women, most are diagnosed during prime child-bearing years, and many pregnancies in general – an estimated half – are not planned. And while a higher percentage of women with MS are having children than in the past, she said, misinformation remains common. In fact, physicians can be part of the problem.

Dr. Shaw highlighted a 2019 Italian survey that found that 16% of 395 people with MS reported that they were discouraged from having children, mainly by medical professionals, after their diagnosis. Seven percent said they never wanted to become parents because of their MS. A 2021 survey of 332 patients with MS in the United States, United Kingdom, France, Germany, Italy, and Spain, found that 56% reported that MS played a role in their decisions about family planning, and 14% of those decided not to have children.

In regard to women of child-bearing age, Dr. Shah recommends that family planning and contraception should be discussed at the initial visit and every subsequent visit. Open-ended, individualized questions are key. “We don’t know what patients don’t share with us,” she said.

Make sure to consider the timing of any plans to have children, she said. If the patient wants to have children within a year, talk about matters such as whether disease activity is well-controlled (6-12 months of good control is ideal) and whether current disease-modifying therapies are safe. Make sure to get a baseline prepartum MRI scan, she said.

If the patients don’t want to have children, make sure they are using a reliable strategy to avoid conception. Be aware that modafinil – “not one that immediately comes to mind” – may decrease the efficacy of oral contraceptives, she said, as can anticonvulsants (phenytoin, carbamazepine, oxcarbazepine, topiramate, and primidone). Oral contraceptives, meanwhile, may decrease levels of lamotrigine.

What if a patient has trouble conceiving? There are some hints in research that MS may boost the risk of infertility in women, Dr. Shah said. That’s why she recommends that colleagues consider referring a patient to an infertility specialist after attempting conception for 6 months as opposed to the general recommendation for 12 months.

Dr. Shah disclosed advisory board service (Genentech) and development of nonbranded educational programming through Novartis and the National Committee for Quality Assurance.

NATIONAL HARBOR, MD – Just 2 days before she spoke in a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers, University of Colorado neurologist Anna Shah, MD, asked a 26-year-old patient with MS about whether she planned to have children. Absolutely not, the young woman replied. “I read online that I can give birth to a baby with MS, which is crazy.”

The patient didn’t understand the risk of having a child with MS – it’s thought to be 2%-5% if one parent has the condition – but she wouldn’t have learned the facts if Dr. Shah hadn’t asked the right questions. “It’s really important for us as a community to know how to be proactive with discussions [about pregnancy],” she said.

As she noted, an estimated 75% of patients with MS are women, most are diagnosed during prime child-bearing years, and many pregnancies in general – an estimated half – are not planned. And while a higher percentage of women with MS are having children than in the past, she said, misinformation remains common. In fact, physicians can be part of the problem.

Dr. Shaw highlighted a 2019 Italian survey that found that 16% of 395 people with MS reported that they were discouraged from having children, mainly by medical professionals, after their diagnosis. Seven percent said they never wanted to become parents because of their MS. A 2021 survey of 332 patients with MS in the United States, United Kingdom, France, Germany, Italy, and Spain, found that 56% reported that MS played a role in their decisions about family planning, and 14% of those decided not to have children.

In regard to women of child-bearing age, Dr. Shah recommends that family planning and contraception should be discussed at the initial visit and every subsequent visit. Open-ended, individualized questions are key. “We don’t know what patients don’t share with us,” she said.

Make sure to consider the timing of any plans to have children, she said. If the patient wants to have children within a year, talk about matters such as whether disease activity is well-controlled (6-12 months of good control is ideal) and whether current disease-modifying therapies are safe. Make sure to get a baseline prepartum MRI scan, she said.

If the patients don’t want to have children, make sure they are using a reliable strategy to avoid conception. Be aware that modafinil – “not one that immediately comes to mind” – may decrease the efficacy of oral contraceptives, she said, as can anticonvulsants (phenytoin, carbamazepine, oxcarbazepine, topiramate, and primidone). Oral contraceptives, meanwhile, may decrease levels of lamotrigine.

What if a patient has trouble conceiving? There are some hints in research that MS may boost the risk of infertility in women, Dr. Shah said. That’s why she recommends that colleagues consider referring a patient to an infertility specialist after attempting conception for 6 months as opposed to the general recommendation for 12 months.

Dr. Shah disclosed advisory board service (Genentech) and development of nonbranded educational programming through Novartis and the National Committee for Quality Assurance.

Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.

In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.

“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”

Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.

“If claims are going down, I don’t understand why premium payments are going up,” she said.

Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.

Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.

Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.

According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.

The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
 

Cases plummet during pandemic

During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.

“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”

The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.

“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”

In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.

But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.

“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
 

High-dollar verdicts pave expensive path

The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.

“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”

In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.  

Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.

“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”

High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.

“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
 

What does 2022 have in store?

Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.

Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.

Such delayed claims may end up costing more because of social inflation, said Mr. Burns.

“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”

Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.

“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”

As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.

“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”

For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.

“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”

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

Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.

In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.

“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”

Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.

“If claims are going down, I don’t understand why premium payments are going up,” she said.

Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.

Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.

Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.

According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.

The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
 

Cases plummet during pandemic

During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.

“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”

The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.

“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”

In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.

But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.

“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
 

High-dollar verdicts pave expensive path

The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.

“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”

In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.  

Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.

“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”

High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.

“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
 

What does 2022 have in store?

Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.

Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.

Such delayed claims may end up costing more because of social inflation, said Mr. Burns.

“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”

Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.

“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”

As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.

“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”

For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.

“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”

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

Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.

In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.

“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”

Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.

“If claims are going down, I don’t understand why premium payments are going up,” she said.

Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.

Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.

Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.

According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.

The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
 

Cases plummet during pandemic

During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.

“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”

The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.

“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”

In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.

But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.

“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
 

High-dollar verdicts pave expensive path

The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.

“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”

In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.  

Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.

“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”

High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.

“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
 

What does 2022 have in store?

Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.

Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.

Such delayed claims may end up costing more because of social inflation, said Mr. Burns.

“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”

Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.

“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”

As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.

“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”

For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.

“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”

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

Opioid use in the elderly is associated with an almost 40% increased risk of dementia in new findings that suggest exposure to these drugs may be another modifiable risk factor for dementia.

“Clinicians and others may want to consider that opioid exposure in those aged 75-80 increases dementia risk, and to balance the potential benefits of opioid use in old age with adverse side effects,” said Stephen Z. Levine, PhD, professor, department of community mental health, University of Haifa (Israel).

The study was published online in the American Journal of Geriatric Psychiatry.
 

Widespread use

Evidence points to a relatively high rate of opioid prescriptions among older adults. A Morbidity and Mortality Weekly Report noted 19.2% of the U.S. adult population filled an opioid prescription in 2018, with the rate in those over 65 double that of adults aged 20-24 years (25% vs. 11.2%).

Disorders and illnesses for which opioids might be prescribed, including cancer and some pain conditions, “are far more prevalent in old age than at a younger age,” said Dr. Levine.

This high rate of opioid use underscores the need to consider the risks of opioid use in old age, said Dr. Levine. “Unfortunately, studies of the association between opioid use and dementia risk in old age are few, and their results are inconsistent.”

The study included 91,307 Israeli citizens aged 60 and over without dementia who were enrolled in the Meuhedet Healthcare Services, a nonprofit health maintenance organization (HMO) serving 14% of the country’s population. Meuhedet has maintained an up-to-date dementia registry since 2002.

The average age of the study sample was 68.29 years at the start of the study (in 2012).

In Israel, opioids are prescribed for a 30-day period. In this study, opioid exposure was defined as opioid medication fills covering 60 days (or two prescriptions) within a 120-day interval.

The primary outcome was incident dementia during follow-up from Jan. 1, 2013 to Oct. 30, 2017. The analysis controlled for a number of factors, including age, sex, smoking status, health conditions such as arthritis, depression, diabetes, osteoporosis, cognitive decline, vitamin deficiencies, cancer, cardiovascular conditions, and hospitalizations for falls.

Researchers also accounted for the competing risk of mortality.

During the study, 3.1% of subjects were exposed to opioids at a mean age of 73.94 years, and 5.8% of subjects developed dementia at an average age of 78.07 years.
 

Increased dementia risk

The risk of incident dementia was significantly increased in those exposed to opioids versus unexposed individuals in the 75- to 80-year age group (adjusted hazard ratio, 1.39; 95% confidence interval, 1.01-1.92; z statistic = 2.02; P < .05).

The authors noted the effect size for opioid exposure in this elderly age group is like other potentially modifiable risk factors for dementia, including body mass index and smoking.

The current study could not determine the biological explanation for the increased dementia risk among older opioid users. “Causal notions are challenging in observational studies and should be viewed with caution,” Dr. Levine noted.

However, a plausible mechanism highlighted in the literature is that opioids promote apoptosis of microglia and neurons that contribute to neurodegenerative diseases, he said.

The study included 14 sensitivity analyses, including those that looked at females, subjects older than 70, smokers, and groups with and without comorbid health conditions. The only sensitivity analysis that didn’t have similar findings to the primary analysis looked at dementia risk restricted to subjects without a vitamin deficiency.

“It’s reassuring that 13 or 14 sensitivity analyses found a significant association between opioid exposure and dementia risk,” said Dr. Levine.

Some prior studies did not show an association between opioid exposure and dementia risk. One possible reason for the discrepancy with the current findings is that the previous research didn’t account for age-specific opioid use effects, or the competing risk of mortality, said Dr. Levine.

Clinicians have a number of potential alternatives to opioids to treat various conditions including acetaminophen, non-steroidal anti-inflammatory drugs, amine reuptake inhibitors (ARIs), membrane stabilizers, muscle relaxants, topical capsaicin, botulinum toxin, cannabinoids, and steroids.

A limitation of the study was that it didn’t adjust for all possible comorbid health conditions, including vascular conditions, or for use of benzodiazepines, and surgical procedures.

In addition, since up to 50% of dementia cases are undetected, it’s possible some in the unexposed opioid group may actually have undiagnosed dementia, thereby reducing the effect sizes in the results.

Reverse causality is also a possibility as the neuropathological process associated with dementia could have started prior to opioid exposure. In addition, the results are limited to prolonged opioid exposure.
 

Interpret with caution

Commenting on the study, David Knopman, MD, a neurologist at Mayo Clinic in Rochester, Minn., whose research involves late-life cognitive disorders, was skeptical.

“On the face of it, the fact that an association was seen only in one narrow age range – 75+ to 80 years – ought to raise serious suspicion about the reliability and validity of the claim that opioid use is a risk factor for dementia, he said.

Although the researchers performed several sensitivity analyses, including accounting for mortality, “pharmacoepidemiological studies are terribly sensitive to residual biases” related to physician and patient choices related to medication use, added Dr. Knopman.

The claim that opioids are a dementia risk “should be viewed with great caution” and should not influence use of opioids where they’re truly indicated, he said.

“It would be a great pity if patients with pain requiring opioids avoid them because of fears about dementia based on the dubious relationship between age and opioid use.”

Dr. Levine and Dr. Knopman report no relevant financial disclosures.

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

Opioid use in the elderly is associated with an almost 40% increased risk of dementia in new findings that suggest exposure to these drugs may be another modifiable risk factor for dementia.

“Clinicians and others may want to consider that opioid exposure in those aged 75-80 increases dementia risk, and to balance the potential benefits of opioid use in old age with adverse side effects,” said Stephen Z. Levine, PhD, professor, department of community mental health, University of Haifa (Israel).

The study was published online in the American Journal of Geriatric Psychiatry.
 

Widespread use

Evidence points to a relatively high rate of opioid prescriptions among older adults. A Morbidity and Mortality Weekly Report noted 19.2% of the U.S. adult population filled an opioid prescription in 2018, with the rate in those over 65 double that of adults aged 20-24 years (25% vs. 11.2%).

Disorders and illnesses for which opioids might be prescribed, including cancer and some pain conditions, “are far more prevalent in old age than at a younger age,” said Dr. Levine.

This high rate of opioid use underscores the need to consider the risks of opioid use in old age, said Dr. Levine. “Unfortunately, studies of the association between opioid use and dementia risk in old age are few, and their results are inconsistent.”

The study included 91,307 Israeli citizens aged 60 and over without dementia who were enrolled in the Meuhedet Healthcare Services, a nonprofit health maintenance organization (HMO) serving 14% of the country’s population. Meuhedet has maintained an up-to-date dementia registry since 2002.

The average age of the study sample was 68.29 years at the start of the study (in 2012).

In Israel, opioids are prescribed for a 30-day period. In this study, opioid exposure was defined as opioid medication fills covering 60 days (or two prescriptions) within a 120-day interval.

The primary outcome was incident dementia during follow-up from Jan. 1, 2013 to Oct. 30, 2017. The analysis controlled for a number of factors, including age, sex, smoking status, health conditions such as arthritis, depression, diabetes, osteoporosis, cognitive decline, vitamin deficiencies, cancer, cardiovascular conditions, and hospitalizations for falls.

Researchers also accounted for the competing risk of mortality.

During the study, 3.1% of subjects were exposed to opioids at a mean age of 73.94 years, and 5.8% of subjects developed dementia at an average age of 78.07 years.
 

Increased dementia risk

The risk of incident dementia was significantly increased in those exposed to opioids versus unexposed individuals in the 75- to 80-year age group (adjusted hazard ratio, 1.39; 95% confidence interval, 1.01-1.92; z statistic = 2.02; P < .05).

The authors noted the effect size for opioid exposure in this elderly age group is like other potentially modifiable risk factors for dementia, including body mass index and smoking.

The current study could not determine the biological explanation for the increased dementia risk among older opioid users. “Causal notions are challenging in observational studies and should be viewed with caution,” Dr. Levine noted.

However, a plausible mechanism highlighted in the literature is that opioids promote apoptosis of microglia and neurons that contribute to neurodegenerative diseases, he said.

The study included 14 sensitivity analyses, including those that looked at females, subjects older than 70, smokers, and groups with and without comorbid health conditions. The only sensitivity analysis that didn’t have similar findings to the primary analysis looked at dementia risk restricted to subjects without a vitamin deficiency.

“It’s reassuring that 13 or 14 sensitivity analyses found a significant association between opioid exposure and dementia risk,” said Dr. Levine.

Some prior studies did not show an association between opioid exposure and dementia risk. One possible reason for the discrepancy with the current findings is that the previous research didn’t account for age-specific opioid use effects, or the competing risk of mortality, said Dr. Levine.

Clinicians have a number of potential alternatives to opioids to treat various conditions including acetaminophen, non-steroidal anti-inflammatory drugs, amine reuptake inhibitors (ARIs), membrane stabilizers, muscle relaxants, topical capsaicin, botulinum toxin, cannabinoids, and steroids.

A limitation of the study was that it didn’t adjust for all possible comorbid health conditions, including vascular conditions, or for use of benzodiazepines, and surgical procedures.

In addition, since up to 50% of dementia cases are undetected, it’s possible some in the unexposed opioid group may actually have undiagnosed dementia, thereby reducing the effect sizes in the results.

Reverse causality is also a possibility as the neuropathological process associated with dementia could have started prior to opioid exposure. In addition, the results are limited to prolonged opioid exposure.
 

Interpret with caution

Commenting on the study, David Knopman, MD, a neurologist at Mayo Clinic in Rochester, Minn., whose research involves late-life cognitive disorders, was skeptical.

“On the face of it, the fact that an association was seen only in one narrow age range – 75+ to 80 years – ought to raise serious suspicion about the reliability and validity of the claim that opioid use is a risk factor for dementia, he said.

Although the researchers performed several sensitivity analyses, including accounting for mortality, “pharmacoepidemiological studies are terribly sensitive to residual biases” related to physician and patient choices related to medication use, added Dr. Knopman.

The claim that opioids are a dementia risk “should be viewed with great caution” and should not influence use of opioids where they’re truly indicated, he said.

“It would be a great pity if patients with pain requiring opioids avoid them because of fears about dementia based on the dubious relationship between age and opioid use.”

Dr. Levine and Dr. Knopman report no relevant financial disclosures.

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

Opioid use in the elderly is associated with an almost 40% increased risk of dementia in new findings that suggest exposure to these drugs may be another modifiable risk factor for dementia.

“Clinicians and others may want to consider that opioid exposure in those aged 75-80 increases dementia risk, and to balance the potential benefits of opioid use in old age with adverse side effects,” said Stephen Z. Levine, PhD, professor, department of community mental health, University of Haifa (Israel).

The study was published online in the American Journal of Geriatric Psychiatry.
 

Widespread use

Evidence points to a relatively high rate of opioid prescriptions among older adults. A Morbidity and Mortality Weekly Report noted 19.2% of the U.S. adult population filled an opioid prescription in 2018, with the rate in those over 65 double that of adults aged 20-24 years (25% vs. 11.2%).

Disorders and illnesses for which opioids might be prescribed, including cancer and some pain conditions, “are far more prevalent in old age than at a younger age,” said Dr. Levine.

This high rate of opioid use underscores the need to consider the risks of opioid use in old age, said Dr. Levine. “Unfortunately, studies of the association between opioid use and dementia risk in old age are few, and their results are inconsistent.”

The study included 91,307 Israeli citizens aged 60 and over without dementia who were enrolled in the Meuhedet Healthcare Services, a nonprofit health maintenance organization (HMO) serving 14% of the country’s population. Meuhedet has maintained an up-to-date dementia registry since 2002.

The average age of the study sample was 68.29 years at the start of the study (in 2012).

In Israel, opioids are prescribed for a 30-day period. In this study, opioid exposure was defined as opioid medication fills covering 60 days (or two prescriptions) within a 120-day interval.

The primary outcome was incident dementia during follow-up from Jan. 1, 2013 to Oct. 30, 2017. The analysis controlled for a number of factors, including age, sex, smoking status, health conditions such as arthritis, depression, diabetes, osteoporosis, cognitive decline, vitamin deficiencies, cancer, cardiovascular conditions, and hospitalizations for falls.

Researchers also accounted for the competing risk of mortality.

During the study, 3.1% of subjects were exposed to opioids at a mean age of 73.94 years, and 5.8% of subjects developed dementia at an average age of 78.07 years.
 

Increased dementia risk

The risk of incident dementia was significantly increased in those exposed to opioids versus unexposed individuals in the 75- to 80-year age group (adjusted hazard ratio, 1.39; 95% confidence interval, 1.01-1.92; z statistic = 2.02; P < .05).

The authors noted the effect size for opioid exposure in this elderly age group is like other potentially modifiable risk factors for dementia, including body mass index and smoking.

The current study could not determine the biological explanation for the increased dementia risk among older opioid users. “Causal notions are challenging in observational studies and should be viewed with caution,” Dr. Levine noted.

However, a plausible mechanism highlighted in the literature is that opioids promote apoptosis of microglia and neurons that contribute to neurodegenerative diseases, he said.

The study included 14 sensitivity analyses, including those that looked at females, subjects older than 70, smokers, and groups with and without comorbid health conditions. The only sensitivity analysis that didn’t have similar findings to the primary analysis looked at dementia risk restricted to subjects without a vitamin deficiency.

“It’s reassuring that 13 or 14 sensitivity analyses found a significant association between opioid exposure and dementia risk,” said Dr. Levine.

Some prior studies did not show an association between opioid exposure and dementia risk. One possible reason for the discrepancy with the current findings is that the previous research didn’t account for age-specific opioid use effects, or the competing risk of mortality, said Dr. Levine.

Clinicians have a number of potential alternatives to opioids to treat various conditions including acetaminophen, non-steroidal anti-inflammatory drugs, amine reuptake inhibitors (ARIs), membrane stabilizers, muscle relaxants, topical capsaicin, botulinum toxin, cannabinoids, and steroids.

A limitation of the study was that it didn’t adjust for all possible comorbid health conditions, including vascular conditions, or for use of benzodiazepines, and surgical procedures.

In addition, since up to 50% of dementia cases are undetected, it’s possible some in the unexposed opioid group may actually have undiagnosed dementia, thereby reducing the effect sizes in the results.

Reverse causality is also a possibility as the neuropathological process associated with dementia could have started prior to opioid exposure. In addition, the results are limited to prolonged opioid exposure.
 

Interpret with caution

Commenting on the study, David Knopman, MD, a neurologist at Mayo Clinic in Rochester, Minn., whose research involves late-life cognitive disorders, was skeptical.

“On the face of it, the fact that an association was seen only in one narrow age range – 75+ to 80 years – ought to raise serious suspicion about the reliability and validity of the claim that opioid use is a risk factor for dementia, he said.

Although the researchers performed several sensitivity analyses, including accounting for mortality, “pharmacoepidemiological studies are terribly sensitive to residual biases” related to physician and patient choices related to medication use, added Dr. Knopman.

The claim that opioids are a dementia risk “should be viewed with great caution” and should not influence use of opioids where they’re truly indicated, he said.

“It would be a great pity if patients with pain requiring opioids avoid them because of fears about dementia based on the dubious relationship between age and opioid use.”

Dr. Levine and Dr. Knopman report no relevant financial disclosures.

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

NATIONAL HARBOR, MD. – Treating neuromyelitis optica spectrum disorder (NMOSD) with the recently approved monoclonal antibody inebilizumab (Uplizna, Horizon Therapeutics) is effective across patient genotypes – including a common genetic variation linked to reduced response to anti-CD20 therapies, new research shows.

The phase 3 N-MOmentum Study previously showed safety and efficacy for inebilizumab over placebo in more than 200 adults with NMOSD.

A new analysis focused on participants who were carriers of either the F/F allele, which is known to reduce the effectiveness of certain monoclonal antibodies, or the rs396991 V-allele, which has not been associated with a reduced response.

Results showed no significant differences between the two carrier groups in NMOSD activity, including annual rates of new/enlarging T2 lesions, during the trial and up to 6 months after treatment with inebilizumab.

“These data illustrate how mechanistic precision in treatment design can help patients gain benefit from their regimen regardless of the genetic make-up of their immune systems,” coinvestigator Bruce Cree, MD, PhD, professor of clinical neurology at the University of California, San Francisco, Weill Institute for Neurosciences, said in a press release.

“The combination of efficacy, safety, and ease of administration with twice-yearly infusions make this product an excellent choice for first-line therapy in NMOSD,” Dr. Cree said.

The findings were presented at the annual meeting of the Consortium of Multiple Sclerosis Centers.
 

B-cell depletion

Inebilizumab has also been approved in China, Japan, and South Korea for the treatment of NMOSD, a rare and severe autoantibody-mediated disease of the central nervous system that includes NMO and related syndromes.

The drug’s B-cell depletion capability is credited with reducing inflammation, lesion formation, and astrocyte damage. The latter can cause severe effects in an NMOSD attack, affecting the optic nerve, spinal cord, and brain.

Manifestations can range from loss of vision to paralysis, loss of sensation, bladder and bowel dysfunction, nerve pain or respiratory failure. Attacks can also result in cumulative damage and disability, the researchers noted.

Results from the original double-blind trial of 230 adults with NMOSD showed that treatment with inebilizumab demonstrated efficacy and safety over placebo. However, questions have remained regarding the treatment’s effectiveness, specifically among patients with the FCGR3A (F/F) allele, a genetic variant that encodes the low-affinity Fc gamma receptor IIIa.

This genotype is known to reduce the effectiveness of certain monoclonal antibodies and anti-CD20 therapies, notably rituximab, in disorders such as NMOSD.

With up to 40% of White and Black individuals known to carry the F/F allele, inebilizumab was designed specifically with that risk in mind, with strong binding to the allele.

Although inebilizumab joins two other Food and Drug Administration–approved treatments for NMOSD – eculizumab and satralizumab – neither of those have a mechanism involving the FCGRA3 receptor. Therefore, those drugs are not a concern for individuals with those genotypes.

To evaluate inebilizumab’s effects among patients with the F/F allele, Dr. Cree and colleagues assessed data on a subset of 142 patients from the N-MOmentum trial.

The study included a 28-week randomized controlled period in which adults with NMOSD received either 300 mg of intravenous inebilizumab or placebo on days 1 and 15, followed by an optional open-label period of at least 2 years. During the open-label phase, all patients received 300 mg of IV inebilizumab every 26 weeks.

Of the 142 patients in the genetic analysis, 104 received inebilizumab and 38 received placebo. In addition, 68 group participants were carriers of the F/F allele, while 74 carried the rs396991 V-allele.
 

No significant differences

Prior to the trial, annualized attack rates (AARs) and disability, as assessed by change in the Expanded Disability Status Scale (EDSS) scores, were nominally higher in the V allele group from disease onset to trial enrollment.

During the trial’s first 6 months, AARs and annual rates of new/enlarging T2 lesions were nominally lower in inebilizumab-treated V allele participants compared with the F/F allele participants, although the differences were not statistically significant.

The AAR was 0.1 for the V allele group vs. 0.3 for the F/F allele group (hazard ratio, 0.40; P = .17). The annual rate of new/enlarging T2 lesions was 1.4 vs. 1.7 (risk ratio, 0.91; P = .88), respectively.

However, at the end of the randomized controlled period, there were no significant differences between the two genotype groups. There was also little difference in clinical metrics of NMOSD activity or B-cell depletion between the two genotype groups during the open-label period involving the long-term repeated inebilizumab dosing.

“Though greater B-cell depletion was observed in inebilizumab-treated V allele participants, compared with F/F participants during the first 6 months, no significant difference in NMOSD activity was observed during this time period,” the investigators reported.

“No differences in B-cell depletion or NMOSD disease activity were observed after 6 months of inebilizumab treatment,” they added.

Dr. Cree noted the study showed that, overall, inebiluzumab’s efficacy was not adversely affected by a polymorphism in the Fc gamma receptor. “These types of genetic analyses may help inform future screening mechanisms to tailor treatment strategies that can optimize the response rate for each patient,” he said.

Dr. Cree added the higher degree of disease activity among those carrying the alleles at baseline is notable and deserves further investigation. That finding “suggests that the presence of the F/F allele is to some extent protective of the detrimental effects the auto-antibody directed against aquaporin-4 that underlies NMOSD pathogenesis,” he said.
 

A new era?

Commenting on the study, Marcelo Matiello, MD, assistant professor of neurology at Harvard Medical School and associate director of the Neuromyelitis Optica clinic at Massachusetts General Hospital, both in Boston, said the findings provide valuable insights into risks for key patient subgroups.

“The data is quite important because we know that with other conditions, such as rheumatoid arthritis, people with this particular genotype do have lower response and are more likely to be refractory,” said Dr. Matiello, who was not involved with the research.

He noted that rituximab is the most commonly used medication in the United States for NMOSD. “It’s not FDA approved, but because of extensive experience, and many case series and small prospective studies, most NMO patients are using rituximab,” Dr. Matiello said. However, the drug’s mechanism “can be compromised” by the F/F allele, he added.

The new findings “provide a good understanding that this medication would likely be superior to patients with this genotype,” he said.

“I think it’s a new era,” Dr. Matiello added. “Not only do we have approved medication for this very severe disease, but we can find out who can benefit most. So, I think this is exciting and is a major step in more individualized appropriate use.”

The study was funded by Horizon Therapeutics. Dr. Cree has consulted for Horizon Therapeutics. Dr. Matiello reported no relevant financial relationships.

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

NATIONAL HARBOR, MD. – Treating neuromyelitis optica spectrum disorder (NMOSD) with the recently approved monoclonal antibody inebilizumab (Uplizna, Horizon Therapeutics) is effective across patient genotypes – including a common genetic variation linked to reduced response to anti-CD20 therapies, new research shows.

The phase 3 N-MOmentum Study previously showed safety and efficacy for inebilizumab over placebo in more than 200 adults with NMOSD.

A new analysis focused on participants who were carriers of either the F/F allele, which is known to reduce the effectiveness of certain monoclonal antibodies, or the rs396991 V-allele, which has not been associated with a reduced response.

Results showed no significant differences between the two carrier groups in NMOSD activity, including annual rates of new/enlarging T2 lesions, during the trial and up to 6 months after treatment with inebilizumab.

“These data illustrate how mechanistic precision in treatment design can help patients gain benefit from their regimen regardless of the genetic make-up of their immune systems,” coinvestigator Bruce Cree, MD, PhD, professor of clinical neurology at the University of California, San Francisco, Weill Institute for Neurosciences, said in a press release.

“The combination of efficacy, safety, and ease of administration with twice-yearly infusions make this product an excellent choice for first-line therapy in NMOSD,” Dr. Cree said.

The findings were presented at the annual meeting of the Consortium of Multiple Sclerosis Centers.
 

B-cell depletion

Inebilizumab has also been approved in China, Japan, and South Korea for the treatment of NMOSD, a rare and severe autoantibody-mediated disease of the central nervous system that includes NMO and related syndromes.

The drug’s B-cell depletion capability is credited with reducing inflammation, lesion formation, and astrocyte damage. The latter can cause severe effects in an NMOSD attack, affecting the optic nerve, spinal cord, and brain.

Manifestations can range from loss of vision to paralysis, loss of sensation, bladder and bowel dysfunction, nerve pain or respiratory failure. Attacks can also result in cumulative damage and disability, the researchers noted.

Results from the original double-blind trial of 230 adults with NMOSD showed that treatment with inebilizumab demonstrated efficacy and safety over placebo. However, questions have remained regarding the treatment’s effectiveness, specifically among patients with the FCGR3A (F/F) allele, a genetic variant that encodes the low-affinity Fc gamma receptor IIIa.

This genotype is known to reduce the effectiveness of certain monoclonal antibodies and anti-CD20 therapies, notably rituximab, in disorders such as NMOSD.

With up to 40% of White and Black individuals known to carry the F/F allele, inebilizumab was designed specifically with that risk in mind, with strong binding to the allele.

Although inebilizumab joins two other Food and Drug Administration–approved treatments for NMOSD – eculizumab and satralizumab – neither of those have a mechanism involving the FCGRA3 receptor. Therefore, those drugs are not a concern for individuals with those genotypes.

To evaluate inebilizumab’s effects among patients with the F/F allele, Dr. Cree and colleagues assessed data on a subset of 142 patients from the N-MOmentum trial.

The study included a 28-week randomized controlled period in which adults with NMOSD received either 300 mg of intravenous inebilizumab or placebo on days 1 and 15, followed by an optional open-label period of at least 2 years. During the open-label phase, all patients received 300 mg of IV inebilizumab every 26 weeks.

Of the 142 patients in the genetic analysis, 104 received inebilizumab and 38 received placebo. In addition, 68 group participants were carriers of the F/F allele, while 74 carried the rs396991 V-allele.
 

No significant differences

Prior to the trial, annualized attack rates (AARs) and disability, as assessed by change in the Expanded Disability Status Scale (EDSS) scores, were nominally higher in the V allele group from disease onset to trial enrollment.

During the trial’s first 6 months, AARs and annual rates of new/enlarging T2 lesions were nominally lower in inebilizumab-treated V allele participants compared with the F/F allele participants, although the differences were not statistically significant.

The AAR was 0.1 for the V allele group vs. 0.3 for the F/F allele group (hazard ratio, 0.40; P = .17). The annual rate of new/enlarging T2 lesions was 1.4 vs. 1.7 (risk ratio, 0.91; P = .88), respectively.

However, at the end of the randomized controlled period, there were no significant differences between the two genotype groups. There was also little difference in clinical metrics of NMOSD activity or B-cell depletion between the two genotype groups during the open-label period involving the long-term repeated inebilizumab dosing.

“Though greater B-cell depletion was observed in inebilizumab-treated V allele participants, compared with F/F participants during the first 6 months, no significant difference in NMOSD activity was observed during this time period,” the investigators reported.

“No differences in B-cell depletion or NMOSD disease activity were observed after 6 months of inebilizumab treatment,” they added.

Dr. Cree noted the study showed that, overall, inebiluzumab’s efficacy was not adversely affected by a polymorphism in the Fc gamma receptor. “These types of genetic analyses may help inform future screening mechanisms to tailor treatment strategies that can optimize the response rate for each patient,” he said.

Dr. Cree added the higher degree of disease activity among those carrying the alleles at baseline is notable and deserves further investigation. That finding “suggests that the presence of the F/F allele is to some extent protective of the detrimental effects the auto-antibody directed against aquaporin-4 that underlies NMOSD pathogenesis,” he said.
 

A new era?

Commenting on the study, Marcelo Matiello, MD, assistant professor of neurology at Harvard Medical School and associate director of the Neuromyelitis Optica clinic at Massachusetts General Hospital, both in Boston, said the findings provide valuable insights into risks for key patient subgroups.

“The data is quite important because we know that with other conditions, such as rheumatoid arthritis, people with this particular genotype do have lower response and are more likely to be refractory,” said Dr. Matiello, who was not involved with the research.

He noted that rituximab is the most commonly used medication in the United States for NMOSD. “It’s not FDA approved, but because of extensive experience, and many case series and small prospective studies, most NMO patients are using rituximab,” Dr. Matiello said. However, the drug’s mechanism “can be compromised” by the F/F allele, he added.

The new findings “provide a good understanding that this medication would likely be superior to patients with this genotype,” he said.

“I think it’s a new era,” Dr. Matiello added. “Not only do we have approved medication for this very severe disease, but we can find out who can benefit most. So, I think this is exciting and is a major step in more individualized appropriate use.”

The study was funded by Horizon Therapeutics. Dr. Cree has consulted for Horizon Therapeutics. Dr. Matiello reported no relevant financial relationships.

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

NATIONAL HARBOR, MD. – Treating neuromyelitis optica spectrum disorder (NMOSD) with the recently approved monoclonal antibody inebilizumab (Uplizna, Horizon Therapeutics) is effective across patient genotypes – including a common genetic variation linked to reduced response to anti-CD20 therapies, new research shows.

The phase 3 N-MOmentum Study previously showed safety and efficacy for inebilizumab over placebo in more than 200 adults with NMOSD.

A new analysis focused on participants who were carriers of either the F/F allele, which is known to reduce the effectiveness of certain monoclonal antibodies, or the rs396991 V-allele, which has not been associated with a reduced response.

Results showed no significant differences between the two carrier groups in NMOSD activity, including annual rates of new/enlarging T2 lesions, during the trial and up to 6 months after treatment with inebilizumab.

“These data illustrate how mechanistic precision in treatment design can help patients gain benefit from their regimen regardless of the genetic make-up of their immune systems,” coinvestigator Bruce Cree, MD, PhD, professor of clinical neurology at the University of California, San Francisco, Weill Institute for Neurosciences, said in a press release.

“The combination of efficacy, safety, and ease of administration with twice-yearly infusions make this product an excellent choice for first-line therapy in NMOSD,” Dr. Cree said.

The findings were presented at the annual meeting of the Consortium of Multiple Sclerosis Centers.
 

B-cell depletion

Inebilizumab has also been approved in China, Japan, and South Korea for the treatment of NMOSD, a rare and severe autoantibody-mediated disease of the central nervous system that includes NMO and related syndromes.

The drug’s B-cell depletion capability is credited with reducing inflammation, lesion formation, and astrocyte damage. The latter can cause severe effects in an NMOSD attack, affecting the optic nerve, spinal cord, and brain.

Manifestations can range from loss of vision to paralysis, loss of sensation, bladder and bowel dysfunction, nerve pain or respiratory failure. Attacks can also result in cumulative damage and disability, the researchers noted.

Results from the original double-blind trial of 230 adults with NMOSD showed that treatment with inebilizumab demonstrated efficacy and safety over placebo. However, questions have remained regarding the treatment’s effectiveness, specifically among patients with the FCGR3A (F/F) allele, a genetic variant that encodes the low-affinity Fc gamma receptor IIIa.

This genotype is known to reduce the effectiveness of certain monoclonal antibodies and anti-CD20 therapies, notably rituximab, in disorders such as NMOSD.

With up to 40% of White and Black individuals known to carry the F/F allele, inebilizumab was designed specifically with that risk in mind, with strong binding to the allele.

Although inebilizumab joins two other Food and Drug Administration–approved treatments for NMOSD – eculizumab and satralizumab – neither of those have a mechanism involving the FCGRA3 receptor. Therefore, those drugs are not a concern for individuals with those genotypes.

To evaluate inebilizumab’s effects among patients with the F/F allele, Dr. Cree and colleagues assessed data on a subset of 142 patients from the N-MOmentum trial.

The study included a 28-week randomized controlled period in which adults with NMOSD received either 300 mg of intravenous inebilizumab or placebo on days 1 and 15, followed by an optional open-label period of at least 2 years. During the open-label phase, all patients received 300 mg of IV inebilizumab every 26 weeks.

Of the 142 patients in the genetic analysis, 104 received inebilizumab and 38 received placebo. In addition, 68 group participants were carriers of the F/F allele, while 74 carried the rs396991 V-allele.
 

No significant differences

Prior to the trial, annualized attack rates (AARs) and disability, as assessed by change in the Expanded Disability Status Scale (EDSS) scores, were nominally higher in the V allele group from disease onset to trial enrollment.

During the trial’s first 6 months, AARs and annual rates of new/enlarging T2 lesions were nominally lower in inebilizumab-treated V allele participants compared with the F/F allele participants, although the differences were not statistically significant.

The AAR was 0.1 for the V allele group vs. 0.3 for the F/F allele group (hazard ratio, 0.40; P = .17). The annual rate of new/enlarging T2 lesions was 1.4 vs. 1.7 (risk ratio, 0.91; P = .88), respectively.

However, at the end of the randomized controlled period, there were no significant differences between the two genotype groups. There was also little difference in clinical metrics of NMOSD activity or B-cell depletion between the two genotype groups during the open-label period involving the long-term repeated inebilizumab dosing.

“Though greater B-cell depletion was observed in inebilizumab-treated V allele participants, compared with F/F participants during the first 6 months, no significant difference in NMOSD activity was observed during this time period,” the investigators reported.

“No differences in B-cell depletion or NMOSD disease activity were observed after 6 months of inebilizumab treatment,” they added.

Dr. Cree noted the study showed that, overall, inebiluzumab’s efficacy was not adversely affected by a polymorphism in the Fc gamma receptor. “These types of genetic analyses may help inform future screening mechanisms to tailor treatment strategies that can optimize the response rate for each patient,” he said.

Dr. Cree added the higher degree of disease activity among those carrying the alleles at baseline is notable and deserves further investigation. That finding “suggests that the presence of the F/F allele is to some extent protective of the detrimental effects the auto-antibody directed against aquaporin-4 that underlies NMOSD pathogenesis,” he said.
 

A new era?

Commenting on the study, Marcelo Matiello, MD, assistant professor of neurology at Harvard Medical School and associate director of the Neuromyelitis Optica clinic at Massachusetts General Hospital, both in Boston, said the findings provide valuable insights into risks for key patient subgroups.

“The data is quite important because we know that with other conditions, such as rheumatoid arthritis, people with this particular genotype do have lower response and are more likely to be refractory,” said Dr. Matiello, who was not involved with the research.

He noted that rituximab is the most commonly used medication in the United States for NMOSD. “It’s not FDA approved, but because of extensive experience, and many case series and small prospective studies, most NMO patients are using rituximab,” Dr. Matiello said. However, the drug’s mechanism “can be compromised” by the F/F allele, he added.

The new findings “provide a good understanding that this medication would likely be superior to patients with this genotype,” he said.

“I think it’s a new era,” Dr. Matiello added. “Not only do we have approved medication for this very severe disease, but we can find out who can benefit most. So, I think this is exciting and is a major step in more individualized appropriate use.”

The study was funded by Horizon Therapeutics. Dr. Cree has consulted for Horizon Therapeutics. Dr. Matiello reported no relevant financial relationships.

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

Following tumor removal in patients with recurrent glioblastoma, an absorbable collagen tile can deliver a controlled and therapeutic dose of radiation that targets remaining tumor cells and spares healthy tissue, new research suggests.

The results showed inserting a collagen matrix containing radioactive seeds into the brain postsurgery did not impede wound healing. It also showed a favorable safety profile, researchers note.

Benefits for patients undergoing this GammaTile (GT) intervention include not having to wait weeks to receive radiation treatment, which in turn improves their quality of life, said study investigator Clark C. Chen, MD, PhD, chair, department of neurosurgery, University of Minnesota Medical School, Minneapolis.

“These initial results are highly promising and offer hope for patients afflicted with an otherwise devastating disease,” Dr. Chen said in an interview.

If replicated in larger trials, GT therapy “could define a new standard of care, and there would really be no reason why patients shouldn’t get this therapy,” he added.

This is the first clinical series describing GT use since its approval by the U.S. Food and Drug Administration (FDA) for recurrent brain cancer.

The findings were presented at the annual meeting of the American Association of Neurological Surgeons (AANS) and were published recently in Neuro-Oncology Advances.

Radioactive seeds

GT therapy is a version of brachytherapy where radioactive sources are placed adjacent to cancerous tissue. It consists of radioactive seeds embedded with a collagen tile.

The neurosurgeon inserts these “tiles” immediately after tumor removal to cover the entire resection cavity, Dr. Chen said. The tiles maintain the cavity architecture to prevent radiation “hot spots” associated with cavity collapse.

Dr. Chen noted the therapy is “short range,” with most of the radiation delivered within 8 millimeters of the radioactive seeds.

The radiation lasts for about a month and the collagen tiles are eventually absorbed within the body. “You put in the tiles and you don’t need to do anything more,” Dr. Chen said.

GT has a number of advantages. Unlike with traditional brachytherapy, the collagen tile provides a buffer around the radiation sources, allowing delivery of the optimal radiation dose while preserving healthy tissue.

It also avoids the up-to-6-weeks patients have to wait postsurgery to get external beam radiation therapy. “If you start radiation too early, it actually compromises wound healing, and in the meantime the tumor is growing,” said Dr. Chen.

“I have several patients where I removed a large tumor and within that 6-week period, the tumor came back entirely,” he added.

With the gamma-tile, however, radiation from the seeds kills the tumor while the body heals.

Safety profile

The study included 22 patients (mean age, 57.7 years; 15 men, 7 women) with wild-type isocitrate dehydrogenase glioblastoma. They were all having surgery for recurrent tumors.

“One of the most challenging aspects of glioblastomas is that not only do the tumors come back, they come back immediately adjacent to where you have done the surgery, and for many patients this is demoralizing,” Dr. Chen said.

Six participants had 0 ⁶ -Methylguanine-DNA methyltranferase (MGMT) methylated glioblastoma, while the others had unmethylated MGMT.

The mean follow-up from initial diagnosis was 733 days (2 years).

Results showed one patient had to be readmitted to the hospital for hydrocephalus, but there were no re-admissions within 30 days attributable to GT.

Despite participants having undergone a second and third resection through the same surgical incision, there were no wound infections. “One of the concerns of giving radiation right after surgery is it can compromise wound healing, and this is why you wait 6 weeks,” Dr. Chen noted.

He stressed that no patient in the study suffered from adverse radiation effects that required medical or surgical intervention.

As the radiation is so short-range, hair loss and skin irritation are not side effects of GT, he added.

“The radiation is inside the brain and highly targeted, so it doesn’t hit hair follicles,” said Dr. Chen. “As best as I can observe in these patients, I did not see toxicity associated with radiation.”

One and done

Among the 22 participants, 18 had neurologic symptoms at baseline. There were no new neurologic deficits that developed after GT placement.

In addition, GT therapy improved “local control” — preventing the tumor from growing back at the site of the surgery. The local control was 86% at 6 months and 81% at 12 months.

The median progression-free survival was about 8 months. The median overall survival was 20 months (about 600 days) for the unmethylated MGMT group and 37.4 months (about 1120 days) for the methylated group.

Outcomes compared favorably to an independent glioblastoma cohort of similar patients who did not receive GT treatment during the study period, Dr. Chen noted.

“This therapy can potentially redefine how we treat glioblastoma patients whose cancer came back,” he said.

A study limitation was that it did not include quality-of-life data, which makes it challenging to assess the therapy’s overall impact, Dr. Chen said. However, he added that from his experience, patients very much appreciate not having to repeatedly take time off work for clinic or hospital visits to receive radiation treatments.

“One of the beauties of this therapy is it’s a one-and-done deal,” he said.

Interesting, timely

Commenting for this news organization, William T. Curry Jr, MD, co-director at MassGeneral Neuroscience and director of neurosurgical oncology at Mass General Cancer Center, Boston, called the study “interesting and timely.”

These new data “underscore that GT is safe in patients that have undergone gross total resection of recurrent glioblastoma and that rates of progression free survival may exceed those treated with resection alone,” said Dr. Curry, who was not involved with the research.

“Surgeons are excited about anything that has the potential to improve outcomes for patients with this very challenging disease, and it is wonderful to be able to offer hope and survival tools to patients,” he added.

However, Dr. Curry noted there are challenges and potential biases when studying survival in cancer patients without conducting a randomization process. The investigators “admit to methodological flaws inherent in the single-arm design in a patient population with recurrent glioblastoma not treated uniformly,” he said.

In addition, he noted overall survival may not have been related to the GT intervention. “Multicenter randomization is probably required to get to the bottom of the survival advantage in different subsets of glioblastoma patients,” Dr. Curry said.

Further research is needed to confirm the efficacy, appropriate indications, and timing of the intervention, but “I would support a randomized multicenter study in patients undergoing near gross total resection of recurrent glioblastoma,” he concluded.

The study received no outside funding. Dr. Chen and Dr. Curry have disclosed no relevant financial relationships.

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

Following tumor removal in patients with recurrent glioblastoma, an absorbable collagen tile can deliver a controlled and therapeutic dose of radiation that targets remaining tumor cells and spares healthy tissue, new research suggests.

The results showed inserting a collagen matrix containing radioactive seeds into the brain postsurgery did not impede wound healing. It also showed a favorable safety profile, researchers note.

Benefits for patients undergoing this GammaTile (GT) intervention include not having to wait weeks to receive radiation treatment, which in turn improves their quality of life, said study investigator Clark C. Chen, MD, PhD, chair, department of neurosurgery, University of Minnesota Medical School, Minneapolis.

“These initial results are highly promising and offer hope for patients afflicted with an otherwise devastating disease,” Dr. Chen said in an interview.

If replicated in larger trials, GT therapy “could define a new standard of care, and there would really be no reason why patients shouldn’t get this therapy,” he added.

This is the first clinical series describing GT use since its approval by the U.S. Food and Drug Administration (FDA) for recurrent brain cancer.

The findings were presented at the annual meeting of the American Association of Neurological Surgeons (AANS) and were published recently in Neuro-Oncology Advances.

Radioactive seeds

GT therapy is a version of brachytherapy where radioactive sources are placed adjacent to cancerous tissue. It consists of radioactive seeds embedded with a collagen tile.

The neurosurgeon inserts these “tiles” immediately after tumor removal to cover the entire resection cavity, Dr. Chen said. The tiles maintain the cavity architecture to prevent radiation “hot spots” associated with cavity collapse.

Dr. Chen noted the therapy is “short range,” with most of the radiation delivered within 8 millimeters of the radioactive seeds.

The radiation lasts for about a month and the collagen tiles are eventually absorbed within the body. “You put in the tiles and you don’t need to do anything more,” Dr. Chen said.

GT has a number of advantages. Unlike with traditional brachytherapy, the collagen tile provides a buffer around the radiation sources, allowing delivery of the optimal radiation dose while preserving healthy tissue.

It also avoids the up-to-6-weeks patients have to wait postsurgery to get external beam radiation therapy. “If you start radiation too early, it actually compromises wound healing, and in the meantime the tumor is growing,” said Dr. Chen.

“I have several patients where I removed a large tumor and within that 6-week period, the tumor came back entirely,” he added.

With the gamma-tile, however, radiation from the seeds kills the tumor while the body heals.

Safety profile

The study included 22 patients (mean age, 57.7 years; 15 men, 7 women) with wild-type isocitrate dehydrogenase glioblastoma. They were all having surgery for recurrent tumors.

“One of the most challenging aspects of glioblastomas is that not only do the tumors come back, they come back immediately adjacent to where you have done the surgery, and for many patients this is demoralizing,” Dr. Chen said.

Six participants had 0 ⁶ -Methylguanine-DNA methyltranferase (MGMT) methylated glioblastoma, while the others had unmethylated MGMT.

The mean follow-up from initial diagnosis was 733 days (2 years).

Results showed one patient had to be readmitted to the hospital for hydrocephalus, but there were no re-admissions within 30 days attributable to GT.

Despite participants having undergone a second and third resection through the same surgical incision, there were no wound infections. “One of the concerns of giving radiation right after surgery is it can compromise wound healing, and this is why you wait 6 weeks,” Dr. Chen noted.

He stressed that no patient in the study suffered from adverse radiation effects that required medical or surgical intervention.

As the radiation is so short-range, hair loss and skin irritation are not side effects of GT, he added.

“The radiation is inside the brain and highly targeted, so it doesn’t hit hair follicles,” said Dr. Chen. “As best as I can observe in these patients, I did not see toxicity associated with radiation.”

One and done

Among the 22 participants, 18 had neurologic symptoms at baseline. There were no new neurologic deficits that developed after GT placement.

In addition, GT therapy improved “local control” — preventing the tumor from growing back at the site of the surgery. The local control was 86% at 6 months and 81% at 12 months.

The median progression-free survival was about 8 months. The median overall survival was 20 months (about 600 days) for the unmethylated MGMT group and 37.4 months (about 1120 days) for the methylated group.

Outcomes compared favorably to an independent glioblastoma cohort of similar patients who did not receive GT treatment during the study period, Dr. Chen noted.

“This therapy can potentially redefine how we treat glioblastoma patients whose cancer came back,” he said.

A study limitation was that it did not include quality-of-life data, which makes it challenging to assess the therapy’s overall impact, Dr. Chen said. However, he added that from his experience, patients very much appreciate not having to repeatedly take time off work for clinic or hospital visits to receive radiation treatments.

“One of the beauties of this therapy is it’s a one-and-done deal,” he said.

Interesting, timely

Commenting for this news organization, William T. Curry Jr, MD, co-director at MassGeneral Neuroscience and director of neurosurgical oncology at Mass General Cancer Center, Boston, called the study “interesting and timely.”

These new data “underscore that GT is safe in patients that have undergone gross total resection of recurrent glioblastoma and that rates of progression free survival may exceed those treated with resection alone,” said Dr. Curry, who was not involved with the research.

“Surgeons are excited about anything that has the potential to improve outcomes for patients with this very challenging disease, and it is wonderful to be able to offer hope and survival tools to patients,” he added.

However, Dr. Curry noted there are challenges and potential biases when studying survival in cancer patients without conducting a randomization process. The investigators “admit to methodological flaws inherent in the single-arm design in a patient population with recurrent glioblastoma not treated uniformly,” he said.

In addition, he noted overall survival may not have been related to the GT intervention. “Multicenter randomization is probably required to get to the bottom of the survival advantage in different subsets of glioblastoma patients,” Dr. Curry said.

Further research is needed to confirm the efficacy, appropriate indications, and timing of the intervention, but “I would support a randomized multicenter study in patients undergoing near gross total resection of recurrent glioblastoma,” he concluded.

The study received no outside funding. Dr. Chen and Dr. Curry have disclosed no relevant financial relationships.

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

Following tumor removal in patients with recurrent glioblastoma, an absorbable collagen tile can deliver a controlled and therapeutic dose of radiation that targets remaining tumor cells and spares healthy tissue, new research suggests.

The results showed inserting a collagen matrix containing radioactive seeds into the brain postsurgery did not impede wound healing. It also showed a favorable safety profile, researchers note.

Benefits for patients undergoing this GammaTile (GT) intervention include not having to wait weeks to receive radiation treatment, which in turn improves their quality of life, said study investigator Clark C. Chen, MD, PhD, chair, department of neurosurgery, University of Minnesota Medical School, Minneapolis.

“These initial results are highly promising and offer hope for patients afflicted with an otherwise devastating disease,” Dr. Chen said in an interview.

If replicated in larger trials, GT therapy “could define a new standard of care, and there would really be no reason why patients shouldn’t get this therapy,” he added.

This is the first clinical series describing GT use since its approval by the U.S. Food and Drug Administration (FDA) for recurrent brain cancer.

The findings were presented at the annual meeting of the American Association of Neurological Surgeons (AANS) and were published recently in Neuro-Oncology Advances.

Radioactive seeds

GT therapy is a version of brachytherapy where radioactive sources are placed adjacent to cancerous tissue. It consists of radioactive seeds embedded with a collagen tile.

The neurosurgeon inserts these “tiles” immediately after tumor removal to cover the entire resection cavity, Dr. Chen said. The tiles maintain the cavity architecture to prevent radiation “hot spots” associated with cavity collapse.

Dr. Chen noted the therapy is “short range,” with most of the radiation delivered within 8 millimeters of the radioactive seeds.

The radiation lasts for about a month and the collagen tiles are eventually absorbed within the body. “You put in the tiles and you don’t need to do anything more,” Dr. Chen said.

GT has a number of advantages. Unlike with traditional brachytherapy, the collagen tile provides a buffer around the radiation sources, allowing delivery of the optimal radiation dose while preserving healthy tissue.

It also avoids the up-to-6-weeks patients have to wait postsurgery to get external beam radiation therapy. “If you start radiation too early, it actually compromises wound healing, and in the meantime the tumor is growing,” said Dr. Chen.

“I have several patients where I removed a large tumor and within that 6-week period, the tumor came back entirely,” he added.

With the gamma-tile, however, radiation from the seeds kills the tumor while the body heals.

Safety profile

The study included 22 patients (mean age, 57.7 years; 15 men, 7 women) with wild-type isocitrate dehydrogenase glioblastoma. They were all having surgery for recurrent tumors.

“One of the most challenging aspects of glioblastomas is that not only do the tumors come back, they come back immediately adjacent to where you have done the surgery, and for many patients this is demoralizing,” Dr. Chen said.

Six participants had 0 ⁶ -Methylguanine-DNA methyltranferase (MGMT) methylated glioblastoma, while the others had unmethylated MGMT.

The mean follow-up from initial diagnosis was 733 days (2 years).

Results showed one patient had to be readmitted to the hospital for hydrocephalus, but there were no re-admissions within 30 days attributable to GT.

Despite participants having undergone a second and third resection through the same surgical incision, there were no wound infections. “One of the concerns of giving radiation right after surgery is it can compromise wound healing, and this is why you wait 6 weeks,” Dr. Chen noted.

He stressed that no patient in the study suffered from adverse radiation effects that required medical or surgical intervention.

As the radiation is so short-range, hair loss and skin irritation are not side effects of GT, he added.

“The radiation is inside the brain and highly targeted, so it doesn’t hit hair follicles,” said Dr. Chen. “As best as I can observe in these patients, I did not see toxicity associated with radiation.”

One and done

Among the 22 participants, 18 had neurologic symptoms at baseline. There were no new neurologic deficits that developed after GT placement.

In addition, GT therapy improved “local control” — preventing the tumor from growing back at the site of the surgery. The local control was 86% at 6 months and 81% at 12 months.

The median progression-free survival was about 8 months. The median overall survival was 20 months (about 600 days) for the unmethylated MGMT group and 37.4 months (about 1120 days) for the methylated group.

Outcomes compared favorably to an independent glioblastoma cohort of similar patients who did not receive GT treatment during the study period, Dr. Chen noted.

“This therapy can potentially redefine how we treat glioblastoma patients whose cancer came back,” he said.

A study limitation was that it did not include quality-of-life data, which makes it challenging to assess the therapy’s overall impact, Dr. Chen said. However, he added that from his experience, patients very much appreciate not having to repeatedly take time off work for clinic or hospital visits to receive radiation treatments.

“One of the beauties of this therapy is it’s a one-and-done deal,” he said.

Interesting, timely

Commenting for this news organization, William T. Curry Jr, MD, co-director at MassGeneral Neuroscience and director of neurosurgical oncology at Mass General Cancer Center, Boston, called the study “interesting and timely.”

These new data “underscore that GT is safe in patients that have undergone gross total resection of recurrent glioblastoma and that rates of progression free survival may exceed those treated with resection alone,” said Dr. Curry, who was not involved with the research.

“Surgeons are excited about anything that has the potential to improve outcomes for patients with this very challenging disease, and it is wonderful to be able to offer hope and survival tools to patients,” he added.

However, Dr. Curry noted there are challenges and potential biases when studying survival in cancer patients without conducting a randomization process. The investigators “admit to methodological flaws inherent in the single-arm design in a patient population with recurrent glioblastoma not treated uniformly,” he said.

In addition, he noted overall survival may not have been related to the GT intervention. “Multicenter randomization is probably required to get to the bottom of the survival advantage in different subsets of glioblastoma patients,” Dr. Curry said.

Further research is needed to confirm the efficacy, appropriate indications, and timing of the intervention, but “I would support a randomized multicenter study in patients undergoing near gross total resection of recurrent glioblastoma,” he concluded.

The study received no outside funding. Dr. Chen and Dr. Curry have disclosed no relevant financial relationships.

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