ICYMI Multiple Sclerosis

Multiple sclerosis (MS) affects Whites, African Americans, and Hispanics differently, a new study finds, and there are big gaps in how they respond to disease-modifying therapies (DMTs).

“Hispanics and African Americans develop a more severe disease course and accumulate more MS-related disability over time despite similar sociodemographic backgrounds and similar patterns of DMT use throughout their disease, suggesting that socioeconomic status and access to health care may not be the main determinants of health,” said neurologist Carlos Pérez, MD, of the University of Texas Health Science Center, Houston. He spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and in a follow-up interview.

“In addition,” Dr. Pérez said, “therapeutic responses to individual DMTs, as well as tolerance and side-effect profiles, are also variable among racial/ethnic groups.”

The researchers tracked 150 patients with MS at the University of Texas Health Science Center – 50 Whites, 50 African American, and 50 Hispanic – who were age and gender matched. The average age of the subjects was 45, and 74% of those in each group were women.

While educational levels between the groups were similar, African Americans had a much higher rate of lost employment because of disability (38%) than Hispanics (19%) and Whites (15%, P = .02). Fifty-seven patients (38%) needed escalation of therapy, and 63% were African American.

About 30% of subjects switched DMTs because of intolerance/adverse events, and 47% of those were African American. Interferons most commonly caused adverse effects in African Americans (61%), and Whites were the most likely to not tolerate glatiramer acetate (39%) than Hispanics (8%) and African Americans (13%).

What might be behind the disparities? “It is possible that genetic factors may play a greater role than previously thought. A recent study reported that Hispanic and African American patients with MS have higher levels of peripheral blood plasmablasts, which may provide indirect evidence for potential biological mechanisms underlying racial and clinical disparities in MS,” Dr. Pérez said. “These mechanisms appear to involve higher degrees of inflammation in the central nervous system. This may explain why African Americans may respond better to higher-efficacy therapies initially, when inflammatory processes predominate MS-related pathology, rather than at later stages of the disease when inflammation plays a less prominent role. Neurologists should consider higher-efficacy DMT as first line. We have begun to do this in our practice.”

Dr. Pérez said the findings offer other lessons. “Neurologists should consider that Caucasian patients tolerate glatiramer acetate less frequently, compared with other racial groups, and potentially consider using alternative DMTs unless the benefits outweigh the risks, such as during pregnancy.”

He also noted that African Americans treated with oral DMTs at baseline were more likely to develop worsening disability over time. “This argues in favor of infusion therapies as first-line treatment,” he said, adding that more Hispanics with MS were not on treatment – or discontinued treatment – compared with Whites and African Americans.
 

Close patient monitoring is key

Atlanta-area neurologist Mitzi Joi Williams, MD, who was asked to comment on the study findings, said in an interview that it “adds to the body of real-world evidence to assist understanding of MS in minority populations.”

She noted that African American patients who started on infusions appeared to be more stable. “There are a great deal of questions surrounding starting patients on injectables versus higher-efficacy therapy initially to prevent disability and this may lend credence to the need for closer examination of initial therapy for these patients. It is important to closely monitor patients and consider a switch in DMT if there is any clinical or radiologic progression, especially for African American and Hispanic patients since there is a great deal of data to suggest they may have more aggressive disease.”

Moving forward, more research like this is needed, she said. “Patients did all have insurance and were largely educated, but there could be other social determinants of health – i.e., transportation, lapses in insurance, or technology barriers – that may have led to worse outcomes.”

No study funding was reported, and Dr. Pérez reported no disclosures. Dr. Williams disclosed research support from EMD Serono, Genentech, and Novartis and advisory committee/consultant relationships with AbbVie, Biogen Idec, Bristol-Myers Squibb, EMD Serono, Genentech, Novartis, and Sanofi Genzyme.

Multiple sclerosis (MS) affects Whites, African Americans, and Hispanics differently, a new study finds, and there are big gaps in how they respond to disease-modifying therapies (DMTs).

“Hispanics and African Americans develop a more severe disease course and accumulate more MS-related disability over time despite similar sociodemographic backgrounds and similar patterns of DMT use throughout their disease, suggesting that socioeconomic status and access to health care may not be the main determinants of health,” said neurologist Carlos Pérez, MD, of the University of Texas Health Science Center, Houston. He spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and in a follow-up interview.

“In addition,” Dr. Pérez said, “therapeutic responses to individual DMTs, as well as tolerance and side-effect profiles, are also variable among racial/ethnic groups.”

The researchers tracked 150 patients with MS at the University of Texas Health Science Center – 50 Whites, 50 African American, and 50 Hispanic – who were age and gender matched. The average age of the subjects was 45, and 74% of those in each group were women.

While educational levels between the groups were similar, African Americans had a much higher rate of lost employment because of disability (38%) than Hispanics (19%) and Whites (15%, P = .02). Fifty-seven patients (38%) needed escalation of therapy, and 63% were African American.

About 30% of subjects switched DMTs because of intolerance/adverse events, and 47% of those were African American. Interferons most commonly caused adverse effects in African Americans (61%), and Whites were the most likely to not tolerate glatiramer acetate (39%) than Hispanics (8%) and African Americans (13%).

What might be behind the disparities? “It is possible that genetic factors may play a greater role than previously thought. A recent study reported that Hispanic and African American patients with MS have higher levels of peripheral blood plasmablasts, which may provide indirect evidence for potential biological mechanisms underlying racial and clinical disparities in MS,” Dr. Pérez said. “These mechanisms appear to involve higher degrees of inflammation in the central nervous system. This may explain why African Americans may respond better to higher-efficacy therapies initially, when inflammatory processes predominate MS-related pathology, rather than at later stages of the disease when inflammation plays a less prominent role. Neurologists should consider higher-efficacy DMT as first line. We have begun to do this in our practice.”

Dr. Pérez said the findings offer other lessons. “Neurologists should consider that Caucasian patients tolerate glatiramer acetate less frequently, compared with other racial groups, and potentially consider using alternative DMTs unless the benefits outweigh the risks, such as during pregnancy.”

He also noted that African Americans treated with oral DMTs at baseline were more likely to develop worsening disability over time. “This argues in favor of infusion therapies as first-line treatment,” he said, adding that more Hispanics with MS were not on treatment – or discontinued treatment – compared with Whites and African Americans.
 

Close patient monitoring is key

Atlanta-area neurologist Mitzi Joi Williams, MD, who was asked to comment on the study findings, said in an interview that it “adds to the body of real-world evidence to assist understanding of MS in minority populations.”

She noted that African American patients who started on infusions appeared to be more stable. “There are a great deal of questions surrounding starting patients on injectables versus higher-efficacy therapy initially to prevent disability and this may lend credence to the need for closer examination of initial therapy for these patients. It is important to closely monitor patients and consider a switch in DMT if there is any clinical or radiologic progression, especially for African American and Hispanic patients since there is a great deal of data to suggest they may have more aggressive disease.”

Moving forward, more research like this is needed, she said. “Patients did all have insurance and were largely educated, but there could be other social determinants of health – i.e., transportation, lapses in insurance, or technology barriers – that may have led to worse outcomes.”

No study funding was reported, and Dr. Pérez reported no disclosures. Dr. Williams disclosed research support from EMD Serono, Genentech, and Novartis and advisory committee/consultant relationships with AbbVie, Biogen Idec, Bristol-Myers Squibb, EMD Serono, Genentech, Novartis, and Sanofi Genzyme.

Multiple sclerosis (MS) affects Whites, African Americans, and Hispanics differently, a new study finds, and there are big gaps in how they respond to disease-modifying therapies (DMTs).

“Hispanics and African Americans develop a more severe disease course and accumulate more MS-related disability over time despite similar sociodemographic backgrounds and similar patterns of DMT use throughout their disease, suggesting that socioeconomic status and access to health care may not be the main determinants of health,” said neurologist Carlos Pérez, MD, of the University of Texas Health Science Center, Houston. He spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and in a follow-up interview.

“In addition,” Dr. Pérez said, “therapeutic responses to individual DMTs, as well as tolerance and side-effect profiles, are also variable among racial/ethnic groups.”

The researchers tracked 150 patients with MS at the University of Texas Health Science Center – 50 Whites, 50 African American, and 50 Hispanic – who were age and gender matched. The average age of the subjects was 45, and 74% of those in each group were women.

While educational levels between the groups were similar, African Americans had a much higher rate of lost employment because of disability (38%) than Hispanics (19%) and Whites (15%, P = .02). Fifty-seven patients (38%) needed escalation of therapy, and 63% were African American.

About 30% of subjects switched DMTs because of intolerance/adverse events, and 47% of those were African American. Interferons most commonly caused adverse effects in African Americans (61%), and Whites were the most likely to not tolerate glatiramer acetate (39%) than Hispanics (8%) and African Americans (13%).

What might be behind the disparities? “It is possible that genetic factors may play a greater role than previously thought. A recent study reported that Hispanic and African American patients with MS have higher levels of peripheral blood plasmablasts, which may provide indirect evidence for potential biological mechanisms underlying racial and clinical disparities in MS,” Dr. Pérez said. “These mechanisms appear to involve higher degrees of inflammation in the central nervous system. This may explain why African Americans may respond better to higher-efficacy therapies initially, when inflammatory processes predominate MS-related pathology, rather than at later stages of the disease when inflammation plays a less prominent role. Neurologists should consider higher-efficacy DMT as first line. We have begun to do this in our practice.”

Dr. Pérez said the findings offer other lessons. “Neurologists should consider that Caucasian patients tolerate glatiramer acetate less frequently, compared with other racial groups, and potentially consider using alternative DMTs unless the benefits outweigh the risks, such as during pregnancy.”

He also noted that African Americans treated with oral DMTs at baseline were more likely to develop worsening disability over time. “This argues in favor of infusion therapies as first-line treatment,” he said, adding that more Hispanics with MS were not on treatment – or discontinued treatment – compared with Whites and African Americans.
 

Close patient monitoring is key

Atlanta-area neurologist Mitzi Joi Williams, MD, who was asked to comment on the study findings, said in an interview that it “adds to the body of real-world evidence to assist understanding of MS in minority populations.”

She noted that African American patients who started on infusions appeared to be more stable. “There are a great deal of questions surrounding starting patients on injectables versus higher-efficacy therapy initially to prevent disability and this may lend credence to the need for closer examination of initial therapy for these patients. It is important to closely monitor patients and consider a switch in DMT if there is any clinical or radiologic progression, especially for African American and Hispanic patients since there is a great deal of data to suggest they may have more aggressive disease.”

Moving forward, more research like this is needed, she said. “Patients did all have insurance and were largely educated, but there could be other social determinants of health – i.e., transportation, lapses in insurance, or technology barriers – that may have led to worse outcomes.”

No study funding was reported, and Dr. Pérez reported no disclosures. Dr. Williams disclosed research support from EMD Serono, Genentech, and Novartis and advisory committee/consultant relationships with AbbVie, Biogen Idec, Bristol-Myers Squibb, EMD Serono, Genentech, Novartis, and Sanofi Genzyme.

While they’re extraordinarily expensive, a trio of newly approved medications is providing a variety of effective treatment options for patients with neuromyelitis optica spectrum disorder (NMOSD), a neurologist told colleagues.

“Patients have a choice of different options with different types of action. It’s good news,” said Sean J. Pittock, MD, of the Mayo Clinic in Rochester, Minn. “If you don’t stop the clinical attacks, patients can become very disabled very quickly. These medications have a significant impact in reducing the likelihood of having a clinical relapse. If you can stop the relapses, you certainly can eventually stop most – if not all – of the disability accrual.”

Dr. Pittock spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and answered follow-up questions in an interview.
 

Treatment advances for NMOSD

NMOSD, also known as NMO, is a relapsing autoimmune inflammatory disorder that causes recurrent optic neuritis and myelitis. It’s a rare disease, affecting 0.5-10 people per 100,000, mostly women.

Several recent trials have supported the use of the drugs eculizumab (Soliris), satralizumab (Enspryng) and inebilizumab (Uplizna) in NMOSD, Dr. Pittock said, and all have received Food and Drug Administration approval to treat the condition over the past 2 years. Dr. Pittock led the PREVENT trial of eculizumab, which showed a 94% reduction of relapse risk versus placebo.

The newly approved drugs are stunningly expensive. According to Dr. Pittock, eculizumab costs $710,000 a year, while inebilizumab runs $393,000 the first year, then $262,000 a year. Satralizumab is $219,000 the first year, then $190,000 a year. Assistance programs are available, Dr. Pittock said, “and we’ve not had any major problems in terms of initiation.”

The cost of rituximab (Rituxan), which has a history of use as an off-label treatment option, is $18,000 a year and dropping, according to Dr. Pittock. There’s also new research on rituximab: In 2020, a small Japanese trial (n = 38) reported prevention of relapses compared with placebo, but Dr. Pittock cautioned that “the placebo patients seem to have a more benign course or more benign phenotypes” than the intervention group.

“There’s no doubt that rituximab works, but does it work as well as the other medications that have been through more of a robust trial process?” he asked. Keep in mind, he added, that perhaps 20%-50% of patients will relapse on rituximab.

Dr. Pittock advised colleagues to consider factors like patient schedules and compliance when choosing a drug. Satralizumab is self-administered monthly, while inebilizumab and rituximab are infused every 6 months.
 

Progress in anti-MOG disease

The trials in NMOSD should spur studies of the drugs in anti–myelin oligodendrocyte glycoprotein (MOG) disease, he said. “I think we’ll see a more rapid move toward phase 3 trials because of the experience with NMO. We will just have to wait and see which medications enter trial.”

Anti-MOG disease, also known as MOG antibody disease (MOGAD) and anti-MOG–associated encephalomyelitis, is caused by anti-MOG antibodies. Optic neuritis is very common, and transverse myelitis can occur.

The condition “actually responds to different drugs than MS and has a different immune pathophysiology,” Dr. Pittock said.

He cautioned colleagues to be aware that “the ability of the antibody to tell you whether or not the patient has the disease is less clear for MOGAD than it is for other diseases. If your patient has a low titer of MOG antibody, and their phenotype really doesn’t look like [MOGAD], you really need to interpret that with significant caution.”

He also highlighted a 2018 report that offers guidance about diagnosis and when MOG-IgC antibody tests are appropriate in CNS demyelinating disease.

Dr. Pittock reported numerous disclosures plus patents issued or pending.

While they’re extraordinarily expensive, a trio of newly approved medications is providing a variety of effective treatment options for patients with neuromyelitis optica spectrum disorder (NMOSD), a neurologist told colleagues.

“Patients have a choice of different options with different types of action. It’s good news,” said Sean J. Pittock, MD, of the Mayo Clinic in Rochester, Minn. “If you don’t stop the clinical attacks, patients can become very disabled very quickly. These medications have a significant impact in reducing the likelihood of having a clinical relapse. If you can stop the relapses, you certainly can eventually stop most – if not all – of the disability accrual.”

Dr. Pittock spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and answered follow-up questions in an interview.
 

Treatment advances for NMOSD

NMOSD, also known as NMO, is a relapsing autoimmune inflammatory disorder that causes recurrent optic neuritis and myelitis. It’s a rare disease, affecting 0.5-10 people per 100,000, mostly women.

Several recent trials have supported the use of the drugs eculizumab (Soliris), satralizumab (Enspryng) and inebilizumab (Uplizna) in NMOSD, Dr. Pittock said, and all have received Food and Drug Administration approval to treat the condition over the past 2 years. Dr. Pittock led the PREVENT trial of eculizumab, which showed a 94% reduction of relapse risk versus placebo.

The newly approved drugs are stunningly expensive. According to Dr. Pittock, eculizumab costs $710,000 a year, while inebilizumab runs $393,000 the first year, then $262,000 a year. Satralizumab is $219,000 the first year, then $190,000 a year. Assistance programs are available, Dr. Pittock said, “and we’ve not had any major problems in terms of initiation.”

The cost of rituximab (Rituxan), which has a history of use as an off-label treatment option, is $18,000 a year and dropping, according to Dr. Pittock. There’s also new research on rituximab: In 2020, a small Japanese trial (n = 38) reported prevention of relapses compared with placebo, but Dr. Pittock cautioned that “the placebo patients seem to have a more benign course or more benign phenotypes” than the intervention group.

“There’s no doubt that rituximab works, but does it work as well as the other medications that have been through more of a robust trial process?” he asked. Keep in mind, he added, that perhaps 20%-50% of patients will relapse on rituximab.

Dr. Pittock advised colleagues to consider factors like patient schedules and compliance when choosing a drug. Satralizumab is self-administered monthly, while inebilizumab and rituximab are infused every 6 months.
 

Progress in anti-MOG disease

The trials in NMOSD should spur studies of the drugs in anti–myelin oligodendrocyte glycoprotein (MOG) disease, he said. “I think we’ll see a more rapid move toward phase 3 trials because of the experience with NMO. We will just have to wait and see which medications enter trial.”

Anti-MOG disease, also known as MOG antibody disease (MOGAD) and anti-MOG–associated encephalomyelitis, is caused by anti-MOG antibodies. Optic neuritis is very common, and transverse myelitis can occur.

The condition “actually responds to different drugs than MS and has a different immune pathophysiology,” Dr. Pittock said.

He cautioned colleagues to be aware that “the ability of the antibody to tell you whether or not the patient has the disease is less clear for MOGAD than it is for other diseases. If your patient has a low titer of MOG antibody, and their phenotype really doesn’t look like [MOGAD], you really need to interpret that with significant caution.”

He also highlighted a 2018 report that offers guidance about diagnosis and when MOG-IgC antibody tests are appropriate in CNS demyelinating disease.

Dr. Pittock reported numerous disclosures plus patents issued or pending.

While they’re extraordinarily expensive, a trio of newly approved medications is providing a variety of effective treatment options for patients with neuromyelitis optica spectrum disorder (NMOSD), a neurologist told colleagues.

“Patients have a choice of different options with different types of action. It’s good news,” said Sean J. Pittock, MD, of the Mayo Clinic in Rochester, Minn. “If you don’t stop the clinical attacks, patients can become very disabled very quickly. These medications have a significant impact in reducing the likelihood of having a clinical relapse. If you can stop the relapses, you certainly can eventually stop most – if not all – of the disability accrual.”

Dr. Pittock spoke at the annual meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis and answered follow-up questions in an interview.
 

Treatment advances for NMOSD

NMOSD, also known as NMO, is a relapsing autoimmune inflammatory disorder that causes recurrent optic neuritis and myelitis. It’s a rare disease, affecting 0.5-10 people per 100,000, mostly women.

Several recent trials have supported the use of the drugs eculizumab (Soliris), satralizumab (Enspryng) and inebilizumab (Uplizna) in NMOSD, Dr. Pittock said, and all have received Food and Drug Administration approval to treat the condition over the past 2 years. Dr. Pittock led the PREVENT trial of eculizumab, which showed a 94% reduction of relapse risk versus placebo.

The newly approved drugs are stunningly expensive. According to Dr. Pittock, eculizumab costs $710,000 a year, while inebilizumab runs $393,000 the first year, then $262,000 a year. Satralizumab is $219,000 the first year, then $190,000 a year. Assistance programs are available, Dr. Pittock said, “and we’ve not had any major problems in terms of initiation.”

The cost of rituximab (Rituxan), which has a history of use as an off-label treatment option, is $18,000 a year and dropping, according to Dr. Pittock. There’s also new research on rituximab: In 2020, a small Japanese trial (n = 38) reported prevention of relapses compared with placebo, but Dr. Pittock cautioned that “the placebo patients seem to have a more benign course or more benign phenotypes” than the intervention group.

“There’s no doubt that rituximab works, but does it work as well as the other medications that have been through more of a robust trial process?” he asked. Keep in mind, he added, that perhaps 20%-50% of patients will relapse on rituximab.

Dr. Pittock advised colleagues to consider factors like patient schedules and compliance when choosing a drug. Satralizumab is self-administered monthly, while inebilizumab and rituximab are infused every 6 months.
 

Progress in anti-MOG disease

The trials in NMOSD should spur studies of the drugs in anti–myelin oligodendrocyte glycoprotein (MOG) disease, he said. “I think we’ll see a more rapid move toward phase 3 trials because of the experience with NMO. We will just have to wait and see which medications enter trial.”

Anti-MOG disease, also known as MOG antibody disease (MOGAD) and anti-MOG–associated encephalomyelitis, is caused by anti-MOG antibodies. Optic neuritis is very common, and transverse myelitis can occur.

The condition “actually responds to different drugs than MS and has a different immune pathophysiology,” Dr. Pittock said.

He cautioned colleagues to be aware that “the ability of the antibody to tell you whether or not the patient has the disease is less clear for MOGAD than it is for other diseases. If your patient has a low titer of MOG antibody, and their phenotype really doesn’t look like [MOGAD], you really need to interpret that with significant caution.”

He also highlighted a 2018 report that offers guidance about diagnosis and when MOG-IgC antibody tests are appropriate in CNS demyelinating disease.

Dr. Pittock reported numerous disclosures plus patents issued or pending.

Each year, roughly 1 in 60 adult patients with multiple sclerosis (MS) aged 65 years and under is hospitalized with urinary or kidney infections, a new study suggests. That’s more than quadruple the rate in a control cohort. Other types of infections affected patients with MS at a higher rate too.

“The relative risk of all types of inpatient infections and most types of outpatient infections was significantly elevated among the patients with MS. While we expected there to be increased relative risk of urinary or kidney and respiratory infections, we also found higher relative risk of viral, fungal, skin, and opportunistic infections,” said study lead author Riley Bove, MD, an assistant professor at the Weill Institute for Neurosciences at the University of California, San Francisco, who presented the findings at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. She answered follow-up questions in an interview.

A common and treatable condition

“Bladder dysfunction may be present in over 80% of persons in MS and can be a significant source of decreased function and quality of life in addition to increased health care costs and morbidity,” neurologist Barbara Giesser, MD, of the University of California, Los Angeles, said in an interview. “It is common among persons with MS to have bladders that do not empty urine completely. This can predispose them to bladder and kidney infections. Also, some patients may try to self-manage bladder symptoms by restricting fluids, and this can predispose them to infection as well.”

Dr. Giesser, who was asked to comment on the present research, advised neurologists to bring up urinary disorders themselves instead of waiting for patients to mention them. “Patients are often embarrassed to start a discussion about genitourinary dysfunction with their neurologists but will be very appreciative of the opportunity for it to be investigated and treated,” she said. “Neurologists should make sure that this area of neurologic function is addressed in the routine management of their patients with MS because bladder dysfunction, morbidity, and complications associated with it are treatable and preventable.”

For her part, Dr. Bove recommended “early and effective identification of risk, appropriate referral to first-line interventions such as pelvic floor physical therapy and patient education, and early referral to urologists skilled in treating neurogenic bladder. Further, it is important to monitor side effects of medications to ensure there are no unrecognized immune deficits.”

She also cautioned that “common symptoms of [urinary tract infections] in people with MS include symptoms that are also prevalent in neurogenic bladder: urgency, incontinence, and frequency. It is possible that having baseline lower urinary tract symptoms could mask the recognition of a urinary infection, resulting in delayed recognition and treatment of the infections.”

EMD Serono funded the study. Dr. Bove is funded by the National MS Society’s Harry Weaver Award. She has received research support from Biogen and Roche Genentech and consulting/advisory board fees from Alexion, Biogen, EMD Serono, Roche Genentech, Sanofi Genzyme, and Novartis. Dr. Giesser reported no disclosures.

Each year, roughly 1 in 60 adult patients with multiple sclerosis (MS) aged 65 years and under is hospitalized with urinary or kidney infections, a new study suggests. That’s more than quadruple the rate in a control cohort. Other types of infections affected patients with MS at a higher rate too.

“The relative risk of all types of inpatient infections and most types of outpatient infections was significantly elevated among the patients with MS. While we expected there to be increased relative risk of urinary or kidney and respiratory infections, we also found higher relative risk of viral, fungal, skin, and opportunistic infections,” said study lead author Riley Bove, MD, an assistant professor at the Weill Institute for Neurosciences at the University of California, San Francisco, who presented the findings at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. She answered follow-up questions in an interview.

A common and treatable condition

“Bladder dysfunction may be present in over 80% of persons in MS and can be a significant source of decreased function and quality of life in addition to increased health care costs and morbidity,” neurologist Barbara Giesser, MD, of the University of California, Los Angeles, said in an interview. “It is common among persons with MS to have bladders that do not empty urine completely. This can predispose them to bladder and kidney infections. Also, some patients may try to self-manage bladder symptoms by restricting fluids, and this can predispose them to infection as well.”

Dr. Giesser, who was asked to comment on the present research, advised neurologists to bring up urinary disorders themselves instead of waiting for patients to mention them. “Patients are often embarrassed to start a discussion about genitourinary dysfunction with their neurologists but will be very appreciative of the opportunity for it to be investigated and treated,” she said. “Neurologists should make sure that this area of neurologic function is addressed in the routine management of their patients with MS because bladder dysfunction, morbidity, and complications associated with it are treatable and preventable.”

For her part, Dr. Bove recommended “early and effective identification of risk, appropriate referral to first-line interventions such as pelvic floor physical therapy and patient education, and early referral to urologists skilled in treating neurogenic bladder. Further, it is important to monitor side effects of medications to ensure there are no unrecognized immune deficits.”

She also cautioned that “common symptoms of [urinary tract infections] in people with MS include symptoms that are also prevalent in neurogenic bladder: urgency, incontinence, and frequency. It is possible that having baseline lower urinary tract symptoms could mask the recognition of a urinary infection, resulting in delayed recognition and treatment of the infections.”

EMD Serono funded the study. Dr. Bove is funded by the National MS Society’s Harry Weaver Award. She has received research support from Biogen and Roche Genentech and consulting/advisory board fees from Alexion, Biogen, EMD Serono, Roche Genentech, Sanofi Genzyme, and Novartis. Dr. Giesser reported no disclosures.

Each year, roughly 1 in 60 adult patients with multiple sclerosis (MS) aged 65 years and under is hospitalized with urinary or kidney infections, a new study suggests. That’s more than quadruple the rate in a control cohort. Other types of infections affected patients with MS at a higher rate too.

“The relative risk of all types of inpatient infections and most types of outpatient infections was significantly elevated among the patients with MS. While we expected there to be increased relative risk of urinary or kidney and respiratory infections, we also found higher relative risk of viral, fungal, skin, and opportunistic infections,” said study lead author Riley Bove, MD, an assistant professor at the Weill Institute for Neurosciences at the University of California, San Francisco, who presented the findings at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis. She answered follow-up questions in an interview.

A common and treatable condition

“Bladder dysfunction may be present in over 80% of persons in MS and can be a significant source of decreased function and quality of life in addition to increased health care costs and morbidity,” neurologist Barbara Giesser, MD, of the University of California, Los Angeles, said in an interview. “It is common among persons with MS to have bladders that do not empty urine completely. This can predispose them to bladder and kidney infections. Also, some patients may try to self-manage bladder symptoms by restricting fluids, and this can predispose them to infection as well.”

Dr. Giesser, who was asked to comment on the present research, advised neurologists to bring up urinary disorders themselves instead of waiting for patients to mention them. “Patients are often embarrassed to start a discussion about genitourinary dysfunction with their neurologists but will be very appreciative of the opportunity for it to be investigated and treated,” she said. “Neurologists should make sure that this area of neurologic function is addressed in the routine management of their patients with MS because bladder dysfunction, morbidity, and complications associated with it are treatable and preventable.”

For her part, Dr. Bove recommended “early and effective identification of risk, appropriate referral to first-line interventions such as pelvic floor physical therapy and patient education, and early referral to urologists skilled in treating neurogenic bladder. Further, it is important to monitor side effects of medications to ensure there are no unrecognized immune deficits.”

She also cautioned that “common symptoms of [urinary tract infections] in people with MS include symptoms that are also prevalent in neurogenic bladder: urgency, incontinence, and frequency. It is possible that having baseline lower urinary tract symptoms could mask the recognition of a urinary infection, resulting in delayed recognition and treatment of the infections.”

EMD Serono funded the study. Dr. Bove is funded by the National MS Society’s Harry Weaver Award. She has received research support from Biogen and Roche Genentech and consulting/advisory board fees from Alexion, Biogen, EMD Serono, Roche Genentech, Sanofi Genzyme, and Novartis. Dr. Giesser reported no disclosures.

Like other people, patients with multiple sclerosis (MS) who become infected with COVID-19 face worse outcomes if they’re older and more disabled, a biostatistician told neurologists. With the exception of anti-CD20s, registries also suggest that disease-modifying therapies (DMTs) don’t cause higher degrees of severity.

“It’s good news since it’s important for patients to stay on these treatments,” said Amber Salter, PhD, MPH, an assistant professor at Washington University, St. Louis, in a follow-up interview following her presentation at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Dr. Salter reported on the findings of several MS/COVID-19 registries from around the world, including the COViMS Registry, which is supported by the Consortium of MS Centers, the MS Society of Canada, and the National MS Society. It tracks patients who developed COVID-19 while also having MS, neuromyelitis optica, or MOG antibody disease.

The registry began collecting data in April 2020 and is ongoing. As of Jan. 29, 2021, 2,059 patients had been tracked; 85% of cases were confirmed by laboratory tests. Nearly all patients (97%) were from the United States, with about 21% from New York state. Nearly 76% were female, the average age was 48. About 70% were non-Hispanic White, 18% were African American; 83% had relapsing remitting MS, and 17% had progressive MS.

“We found that 11.5% of MS patients were reported being hospitalized, while 4.2% were admitted to the ICU or ventilated and 3% had died,” Dr. Salter said. Not surprisingly, the death rate was highest (21%) in patients aged 75 years or older, compared with 11% of those aged 65-74 years. Those with more severe cases – those who were nonambulatory – had a death rate of 18%, compared with 0.6% of those who were fully ambulatory and 4% of those who walked with assistance.

“A lot of the risks [for COVID-19 severity] we see in the general population are risks in the MS population,” Dr. Salter said.

Dr. Salter also summarized the results of other international registries. After adjustment, a registry in Italy linked the anti-CD20 drugs ocrelizumab or rituximab (odds ratio, 2.37, P = .015) and recent use of methylprednisolone (OR, 5.2; P = .001) to more severe courses of COVID-19, compared with other DMTs. And a global data-sharing project linked anti-CD20s to more severe outcomes, compared with other DMTs (hospitalization, adjusted prevalence ratio, 1.49; ICU admission, aPR, 2.55; and ventilation, aPR, 3.05).

In an interview, neurologist Lauren Gluck, MD, of Albert Einstein College of Medicine and Montefiore Medical Center, both in New York, cautioned that prescribing anti-CD20s now “requires a more complex informed consent process with patients and outlining of risk as well as strategies to minimize contracting the infection.”

Moving forward, she advised colleagues to “keep treating MS with DMTs. Preventing MS attacks will help keep patients out of the hospital and limit need for high-dose steroids.” And she cautioned that “avoiding action due to inaccurate fear of DMTs and COVID-19 may put your patients at unnecessary risk of relapses and accumulated disability. Educate your patients on the reality of the COVID19 pandemic, their personal risk of exposure, and strategies to minimize their risk.”

Fortunately, vaccinations offer protection against COVID-19 in patients with MS, although patients are clearly concerned about potential risks. “A frequent concern is whether the vaccines are safe for MS patients in general and if they could incite MS relapses,” neurologist Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, said in an interview. “The American Academy of Neurology guidelines have not found a connection between vaccination and MS relapses. Having COVID-19 infection can trigger MS relapses, so clearly the benefit from the vaccine outweighs any potential risks. Obviously, it is not advisable to take any vaccine during an active relapse, but vaccines are safe otherwise when given during remission.”

Dr. Salter and Dr. Gluck reported no relevant disclosures. Dr. Abboud reports consulting fees from Biogen, Genentech, Bristol-Myers Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myers Squibb, Genentech, and Sanofi-Genzyme.


 

Like other people, patients with multiple sclerosis (MS) who become infected with COVID-19 face worse outcomes if they’re older and more disabled, a biostatistician told neurologists. With the exception of anti-CD20s, registries also suggest that disease-modifying therapies (DMTs) don’t cause higher degrees of severity.

“It’s good news since it’s important for patients to stay on these treatments,” said Amber Salter, PhD, MPH, an assistant professor at Washington University, St. Louis, in a follow-up interview following her presentation at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Dr. Salter reported on the findings of several MS/COVID-19 registries from around the world, including the COViMS Registry, which is supported by the Consortium of MS Centers, the MS Society of Canada, and the National MS Society. It tracks patients who developed COVID-19 while also having MS, neuromyelitis optica, or MOG antibody disease.

The registry began collecting data in April 2020 and is ongoing. As of Jan. 29, 2021, 2,059 patients had been tracked; 85% of cases were confirmed by laboratory tests. Nearly all patients (97%) were from the United States, with about 21% from New York state. Nearly 76% were female, the average age was 48. About 70% were non-Hispanic White, 18% were African American; 83% had relapsing remitting MS, and 17% had progressive MS.

“We found that 11.5% of MS patients were reported being hospitalized, while 4.2% were admitted to the ICU or ventilated and 3% had died,” Dr. Salter said. Not surprisingly, the death rate was highest (21%) in patients aged 75 years or older, compared with 11% of those aged 65-74 years. Those with more severe cases – those who were nonambulatory – had a death rate of 18%, compared with 0.6% of those who were fully ambulatory and 4% of those who walked with assistance.

“A lot of the risks [for COVID-19 severity] we see in the general population are risks in the MS population,” Dr. Salter said.

Dr. Salter also summarized the results of other international registries. After adjustment, a registry in Italy linked the anti-CD20 drugs ocrelizumab or rituximab (odds ratio, 2.37, P = .015) and recent use of methylprednisolone (OR, 5.2; P = .001) to more severe courses of COVID-19, compared with other DMTs. And a global data-sharing project linked anti-CD20s to more severe outcomes, compared with other DMTs (hospitalization, adjusted prevalence ratio, 1.49; ICU admission, aPR, 2.55; and ventilation, aPR, 3.05).

In an interview, neurologist Lauren Gluck, MD, of Albert Einstein College of Medicine and Montefiore Medical Center, both in New York, cautioned that prescribing anti-CD20s now “requires a more complex informed consent process with patients and outlining of risk as well as strategies to minimize contracting the infection.”

Moving forward, she advised colleagues to “keep treating MS with DMTs. Preventing MS attacks will help keep patients out of the hospital and limit need for high-dose steroids.” And she cautioned that “avoiding action due to inaccurate fear of DMTs and COVID-19 may put your patients at unnecessary risk of relapses and accumulated disability. Educate your patients on the reality of the COVID19 pandemic, their personal risk of exposure, and strategies to minimize their risk.”

Fortunately, vaccinations offer protection against COVID-19 in patients with MS, although patients are clearly concerned about potential risks. “A frequent concern is whether the vaccines are safe for MS patients in general and if they could incite MS relapses,” neurologist Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, said in an interview. “The American Academy of Neurology guidelines have not found a connection between vaccination and MS relapses. Having COVID-19 infection can trigger MS relapses, so clearly the benefit from the vaccine outweighs any potential risks. Obviously, it is not advisable to take any vaccine during an active relapse, but vaccines are safe otherwise when given during remission.”

Dr. Salter and Dr. Gluck reported no relevant disclosures. Dr. Abboud reports consulting fees from Biogen, Genentech, Bristol-Myers Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myers Squibb, Genentech, and Sanofi-Genzyme.


 

Like other people, patients with multiple sclerosis (MS) who become infected with COVID-19 face worse outcomes if they’re older and more disabled, a biostatistician told neurologists. With the exception of anti-CD20s, registries also suggest that disease-modifying therapies (DMTs) don’t cause higher degrees of severity.

“It’s good news since it’s important for patients to stay on these treatments,” said Amber Salter, PhD, MPH, an assistant professor at Washington University, St. Louis, in a follow-up interview following her presentation at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Dr. Salter reported on the findings of several MS/COVID-19 registries from around the world, including the COViMS Registry, which is supported by the Consortium of MS Centers, the MS Society of Canada, and the National MS Society. It tracks patients who developed COVID-19 while also having MS, neuromyelitis optica, or MOG antibody disease.

The registry began collecting data in April 2020 and is ongoing. As of Jan. 29, 2021, 2,059 patients had been tracked; 85% of cases were confirmed by laboratory tests. Nearly all patients (97%) were from the United States, with about 21% from New York state. Nearly 76% were female, the average age was 48. About 70% were non-Hispanic White, 18% were African American; 83% had relapsing remitting MS, and 17% had progressive MS.

“We found that 11.5% of MS patients were reported being hospitalized, while 4.2% were admitted to the ICU or ventilated and 3% had died,” Dr. Salter said. Not surprisingly, the death rate was highest (21%) in patients aged 75 years or older, compared with 11% of those aged 65-74 years. Those with more severe cases – those who were nonambulatory – had a death rate of 18%, compared with 0.6% of those who were fully ambulatory and 4% of those who walked with assistance.

“A lot of the risks [for COVID-19 severity] we see in the general population are risks in the MS population,” Dr. Salter said.

Dr. Salter also summarized the results of other international registries. After adjustment, a registry in Italy linked the anti-CD20 drugs ocrelizumab or rituximab (odds ratio, 2.37, P = .015) and recent use of methylprednisolone (OR, 5.2; P = .001) to more severe courses of COVID-19, compared with other DMTs. And a global data-sharing project linked anti-CD20s to more severe outcomes, compared with other DMTs (hospitalization, adjusted prevalence ratio, 1.49; ICU admission, aPR, 2.55; and ventilation, aPR, 3.05).

In an interview, neurologist Lauren Gluck, MD, of Albert Einstein College of Medicine and Montefiore Medical Center, both in New York, cautioned that prescribing anti-CD20s now “requires a more complex informed consent process with patients and outlining of risk as well as strategies to minimize contracting the infection.”

Moving forward, she advised colleagues to “keep treating MS with DMTs. Preventing MS attacks will help keep patients out of the hospital and limit need for high-dose steroids.” And she cautioned that “avoiding action due to inaccurate fear of DMTs and COVID-19 may put your patients at unnecessary risk of relapses and accumulated disability. Educate your patients on the reality of the COVID19 pandemic, their personal risk of exposure, and strategies to minimize their risk.”

Fortunately, vaccinations offer protection against COVID-19 in patients with MS, although patients are clearly concerned about potential risks. “A frequent concern is whether the vaccines are safe for MS patients in general and if they could incite MS relapses,” neurologist Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, said in an interview. “The American Academy of Neurology guidelines have not found a connection between vaccination and MS relapses. Having COVID-19 infection can trigger MS relapses, so clearly the benefit from the vaccine outweighs any potential risks. Obviously, it is not advisable to take any vaccine during an active relapse, but vaccines are safe otherwise when given during remission.”

Dr. Salter and Dr. Gluck reported no relevant disclosures. Dr. Abboud reports consulting fees from Biogen, Genentech, Bristol-Myers Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myers Squibb, Genentech, and Sanofi-Genzyme.


 

COVID-19 vaccines are considered safe for patients with multiple sclerosis (MS), a neurologist told colleagues, but those who are on disease-modifying therapy (DMT) – or about to begin it – should be cautious about the timing of their shots.

“There’s no reason to think any of the three authorized vaccines are in any way more dangerous in people with MS, or in the context of MS DMTs. It’s only a question of whether certain DMTs will influence the degree of benefit you get from the vaccine,” said Amit Bar-Or, MD, director of the Center for Neuroinflammation and Neurotherapeutics, chief of the multiple sclerosis division, and Melissa and Paul Anderson President’s Distinguished Professor at the University of Pennsylvania, Philadelphia. He spoke at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis, and he also answered questions in a follow-up interview.

“The merits of being protected by the COVID-19 vaccines far outweigh any risks that one would consider associated with vaccines and individuals with MS,” said Dr. Bar-Or. “And there’s reason to think that the RNA vaccines may even be safer than prior, more traditional vaccines. They are nonlive, noninactivated vaccines, and there is no risk in terms of interacting with MS.”

Where do DMTs fit in? In an interview, Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, also in Cleveland, said there’s reason for caution regarding DMTs that deplete immune cells or entrap them in the lymph nodes. “What is not clearly known is the effect of the fumarates, which do not act through cell depletion but can occasionally deplete immune cells as a side effect. These likely have no negative effect on vaccine efficacy in patients with normal immune cell count but may have a negative effect in those with significant immune cell reduction. Luckily, significant immune cell reduction is rare in patients taking fumarates.”

In addition, he said, “interferons and natalizumab are generally thought to have no impact on vaccine efficacy while glatiramer acetate and teriflunomide are thought to have no or only little impact on vaccines. Most of these concepts are derived from studies of non–COVID-19 vaccines.”

Dr. Bar-Or highlighted specific DMTs. Teriflunomide (Aubagio) “has a relatively mild effect on the immune system and is not thought to be particularly immune suppressive or deplete immune cells,” Dr. Bar-Or said, as shown in a 2015 study he led (Neurol Neuroimmunol Neuroinflamm. 2015 Feb 12;2[2]:e70). In contrast, a 2020 study, also led by Dr. Bar-Or, showed that nonlive vaccinations given after treatment with ocrelizumab (Ocrevus) – an anti-CD20 monoclonal antibody – are “attenuated, compared with untreated or interferon-beta–treated patients, but they can still be expected to be protective.”

Dr. Bar-Or pointed to National MS Society guidelines about the timing of the Pfizer and Moderna mRNA vaccines for patients with MS who are on DMT. In patients with stable MS, the society recommends no adjustments in timing for patients starting or remaining on several DMTs. The list includes teriflunomide, glatiramer acetate (Copaxone), and dimethyl fumarate, among others.

Patients shouldn’t start fingolimod (Gilenya), siponimod (Mayzent), or ozanimod (Zeposia) until 4 weeks or more after their second vaccine dose, the guidelines suggest. Vaccine doses are recommended 3-5 days after the final dose of high-dose steroids. And there are more complicated recommendations regarding a number of other DMTs – ocrelizumab, ofatumumab (Kesimpta), alemtuzumab (Lemtrada), cladribine (Mavenclad), and rituximab (Rituxan).

Dr. Bar-Or cautioned that the guidelines are an imperfect “first pass” and are being updated.

He added that the guidelines are not set in stone: “Scheduling is not always possible in terms of adjusting the vaccine timing. Patients in general are recommended to take the vaccine when it becomes available, as it may be more important for them to get the vaccine than to try to time the vaccine relative to the DMT.”

Guidance regarding the newly authorized Johnson & Johnson vaccine is expected soon, said neurologist Barbara Giesser, MD, of Pacific Neuroscience Institute in Santa Monica, Calif., in an interview. As for her advice to patients, she said that, “in general, I am recommending that patients get [vaccinated] as soon as it is available to them with adjustment of timing of some DMTs as may be appropriate.”

Dr. Bar-Or has received consulting fees and/or grant support from – or participated as a speaker in events sponsored by – Accure, Atara Biotherapeutics, Biogen, Bristol-Myer Squibb/Celgene/Receptos, GlaxoSmithKline, Gossamer, Janssen/Actelion, Medimmune, Merck/EMD Serono, Novartis, Roche/Genentech, and Sanofi-Genzyme. He also receives research funding from various organizations and agencies. Dr. Abboud reported receiving consulting fees from Biogen, Genentech, Bristol-Myer Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myer Squibb, Genentech, and Sanofi-Genzyme. Dr. Giesser reports no disclosures.
 

COVID-19 vaccines are considered safe for patients with multiple sclerosis (MS), a neurologist told colleagues, but those who are on disease-modifying therapy (DMT) – or about to begin it – should be cautious about the timing of their shots.

“There’s no reason to think any of the three authorized vaccines are in any way more dangerous in people with MS, or in the context of MS DMTs. It’s only a question of whether certain DMTs will influence the degree of benefit you get from the vaccine,” said Amit Bar-Or, MD, director of the Center for Neuroinflammation and Neurotherapeutics, chief of the multiple sclerosis division, and Melissa and Paul Anderson President’s Distinguished Professor at the University of Pennsylvania, Philadelphia. He spoke at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis, and he also answered questions in a follow-up interview.

“The merits of being protected by the COVID-19 vaccines far outweigh any risks that one would consider associated with vaccines and individuals with MS,” said Dr. Bar-Or. “And there’s reason to think that the RNA vaccines may even be safer than prior, more traditional vaccines. They are nonlive, noninactivated vaccines, and there is no risk in terms of interacting with MS.”

Where do DMTs fit in? In an interview, Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, also in Cleveland, said there’s reason for caution regarding DMTs that deplete immune cells or entrap them in the lymph nodes. “What is not clearly known is the effect of the fumarates, which do not act through cell depletion but can occasionally deplete immune cells as a side effect. These likely have no negative effect on vaccine efficacy in patients with normal immune cell count but may have a negative effect in those with significant immune cell reduction. Luckily, significant immune cell reduction is rare in patients taking fumarates.”

In addition, he said, “interferons and natalizumab are generally thought to have no impact on vaccine efficacy while glatiramer acetate and teriflunomide are thought to have no or only little impact on vaccines. Most of these concepts are derived from studies of non–COVID-19 vaccines.”

Dr. Bar-Or highlighted specific DMTs. Teriflunomide (Aubagio) “has a relatively mild effect on the immune system and is not thought to be particularly immune suppressive or deplete immune cells,” Dr. Bar-Or said, as shown in a 2015 study he led (Neurol Neuroimmunol Neuroinflamm. 2015 Feb 12;2[2]:e70). In contrast, a 2020 study, also led by Dr. Bar-Or, showed that nonlive vaccinations given after treatment with ocrelizumab (Ocrevus) – an anti-CD20 monoclonal antibody – are “attenuated, compared with untreated or interferon-beta–treated patients, but they can still be expected to be protective.”

Dr. Bar-Or pointed to National MS Society guidelines about the timing of the Pfizer and Moderna mRNA vaccines for patients with MS who are on DMT. In patients with stable MS, the society recommends no adjustments in timing for patients starting or remaining on several DMTs. The list includes teriflunomide, glatiramer acetate (Copaxone), and dimethyl fumarate, among others.

Patients shouldn’t start fingolimod (Gilenya), siponimod (Mayzent), or ozanimod (Zeposia) until 4 weeks or more after their second vaccine dose, the guidelines suggest. Vaccine doses are recommended 3-5 days after the final dose of high-dose steroids. And there are more complicated recommendations regarding a number of other DMTs – ocrelizumab, ofatumumab (Kesimpta), alemtuzumab (Lemtrada), cladribine (Mavenclad), and rituximab (Rituxan).

Dr. Bar-Or cautioned that the guidelines are an imperfect “first pass” and are being updated.

He added that the guidelines are not set in stone: “Scheduling is not always possible in terms of adjusting the vaccine timing. Patients in general are recommended to take the vaccine when it becomes available, as it may be more important for them to get the vaccine than to try to time the vaccine relative to the DMT.”

Guidance regarding the newly authorized Johnson & Johnson vaccine is expected soon, said neurologist Barbara Giesser, MD, of Pacific Neuroscience Institute in Santa Monica, Calif., in an interview. As for her advice to patients, she said that, “in general, I am recommending that patients get [vaccinated] as soon as it is available to them with adjustment of timing of some DMTs as may be appropriate.”

Dr. Bar-Or has received consulting fees and/or grant support from – or participated as a speaker in events sponsored by – Accure, Atara Biotherapeutics, Biogen, Bristol-Myer Squibb/Celgene/Receptos, GlaxoSmithKline, Gossamer, Janssen/Actelion, Medimmune, Merck/EMD Serono, Novartis, Roche/Genentech, and Sanofi-Genzyme. He also receives research funding from various organizations and agencies. Dr. Abboud reported receiving consulting fees from Biogen, Genentech, Bristol-Myer Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myer Squibb, Genentech, and Sanofi-Genzyme. Dr. Giesser reports no disclosures.
 

COVID-19 vaccines are considered safe for patients with multiple sclerosis (MS), a neurologist told colleagues, but those who are on disease-modifying therapy (DMT) – or about to begin it – should be cautious about the timing of their shots.

“There’s no reason to think any of the three authorized vaccines are in any way more dangerous in people with MS, or in the context of MS DMTs. It’s only a question of whether certain DMTs will influence the degree of benefit you get from the vaccine,” said Amit Bar-Or, MD, director of the Center for Neuroinflammation and Neurotherapeutics, chief of the multiple sclerosis division, and Melissa and Paul Anderson President’s Distinguished Professor at the University of Pennsylvania, Philadelphia. He spoke at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis, and he also answered questions in a follow-up interview.

“The merits of being protected by the COVID-19 vaccines far outweigh any risks that one would consider associated with vaccines and individuals with MS,” said Dr. Bar-Or. “And there’s reason to think that the RNA vaccines may even be safer than prior, more traditional vaccines. They are nonlive, noninactivated vaccines, and there is no risk in terms of interacting with MS.”

Where do DMTs fit in? In an interview, Hesham Abboud, MD, PhD, of University Hospitals of Cleveland and Case Western Reserve University, also in Cleveland, said there’s reason for caution regarding DMTs that deplete immune cells or entrap them in the lymph nodes. “What is not clearly known is the effect of the fumarates, which do not act through cell depletion but can occasionally deplete immune cells as a side effect. These likely have no negative effect on vaccine efficacy in patients with normal immune cell count but may have a negative effect in those with significant immune cell reduction. Luckily, significant immune cell reduction is rare in patients taking fumarates.”

In addition, he said, “interferons and natalizumab are generally thought to have no impact on vaccine efficacy while glatiramer acetate and teriflunomide are thought to have no or only little impact on vaccines. Most of these concepts are derived from studies of non–COVID-19 vaccines.”

Dr. Bar-Or highlighted specific DMTs. Teriflunomide (Aubagio) “has a relatively mild effect on the immune system and is not thought to be particularly immune suppressive or deplete immune cells,” Dr. Bar-Or said, as shown in a 2015 study he led (Neurol Neuroimmunol Neuroinflamm. 2015 Feb 12;2[2]:e70). In contrast, a 2020 study, also led by Dr. Bar-Or, showed that nonlive vaccinations given after treatment with ocrelizumab (Ocrevus) – an anti-CD20 monoclonal antibody – are “attenuated, compared with untreated or interferon-beta–treated patients, but they can still be expected to be protective.”

Dr. Bar-Or pointed to National MS Society guidelines about the timing of the Pfizer and Moderna mRNA vaccines for patients with MS who are on DMT. In patients with stable MS, the society recommends no adjustments in timing for patients starting or remaining on several DMTs. The list includes teriflunomide, glatiramer acetate (Copaxone), and dimethyl fumarate, among others.

Patients shouldn’t start fingolimod (Gilenya), siponimod (Mayzent), or ozanimod (Zeposia) until 4 weeks or more after their second vaccine dose, the guidelines suggest. Vaccine doses are recommended 3-5 days after the final dose of high-dose steroids. And there are more complicated recommendations regarding a number of other DMTs – ocrelizumab, ofatumumab (Kesimpta), alemtuzumab (Lemtrada), cladribine (Mavenclad), and rituximab (Rituxan).

Dr. Bar-Or cautioned that the guidelines are an imperfect “first pass” and are being updated.

He added that the guidelines are not set in stone: “Scheduling is not always possible in terms of adjusting the vaccine timing. Patients in general are recommended to take the vaccine when it becomes available, as it may be more important for them to get the vaccine than to try to time the vaccine relative to the DMT.”

Guidance regarding the newly authorized Johnson & Johnson vaccine is expected soon, said neurologist Barbara Giesser, MD, of Pacific Neuroscience Institute in Santa Monica, Calif., in an interview. As for her advice to patients, she said that, “in general, I am recommending that patients get [vaccinated] as soon as it is available to them with adjustment of timing of some DMTs as may be appropriate.”

Dr. Bar-Or has received consulting fees and/or grant support from – or participated as a speaker in events sponsored by – Accure, Atara Biotherapeutics, Biogen, Bristol-Myer Squibb/Celgene/Receptos, GlaxoSmithKline, Gossamer, Janssen/Actelion, Medimmune, Merck/EMD Serono, Novartis, Roche/Genentech, and Sanofi-Genzyme. He also receives research funding from various organizations and agencies. Dr. Abboud reported receiving consulting fees from Biogen, Genentech, Bristol-Myer Squibb, Alexion, and Viela Bio. He receives research support from Novartis, Bristol-Myer Squibb, Genentech, and Sanofi-Genzyme. Dr. Giesser reports no disclosures.
 

Reactions to the infusion of natalizumab (Tysabri) for the treatment of multiple sclerosis (MS) are very uncommon, are usually mild, and nearly always occur during, not after, the infusion, new studies show.

Collectively, the results suggest the need to rethink the drug’s mandatory 1-hour postinfusion observation period – particularly when unnecessarily spending time in medical settings is discouraged because of concerns regarding COVID-19, the researchers concluded.

Their findings “highlight a potential opportunity to improve and streamline the infusion and postinfusion monitoring process,” reported the authors of one of the studies. The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Infusion reactions were rare

“In this systematic review of almost 10,000 natalizumab infusions, all infusion-related adverse events were mild, and no clinically relevant safety concerns were associated with natalizumab infusions,” they said.

The 1-hour postinfusion observation period for natalizumab, approved for the treatment of relapsing remitting MS (RRMS), is mandated by the Food and Drug Administration, as well as the European Medicines Agency, and applies to each dose, regardless of treatment duration, owing to concerns of infusion reactions. However, previous evidence has indicated that reactions are rare and are usually mild.

In addition to adding burden to the treatment regimen for patients and providers alike, any extended time in an environment where there is concern of heightened risk for SARS-CoV-2 exposure is a concern.

To evaluate the frequency, severity, and timing of infusion reactions, Yujie Wang, MD, of the department of neurology at the University of Washington, Seattle, and colleagues reviewed medical records of all patients who received natalizumab at the University of Washington MS Center’s infusion suite between July 2012 and September 2020.

Among 333 patients with RRMS, 9,682 infusions of natalizumab were provided over the study period, with a mean of 27 infusions per patient (range, 1-174). The mean age of the patients was 41 years, and 87 (26%) were male.

Overall, 33 infusion-related adverse events were reported in 26 patients, representing 0.34% of total infusions and 7.8% of patients.

In 77% of cases, the adverse event occurred during the infusion. In 92% of cases, the adverse event occurred within the first 6 months of treatment.

All of the events were described as mild. The most common were itching, gastrointestinal problems, headache, and flushing.

None of the reactions required emergency care or hospitalization. Symptoms were either self-managed or were managed easily with standard care. The treatment was continued in all cases.

“For physicians and providers who care for patients with MS and are comfortable with infusible therapies, it is no surprise that rates of clinically significant infusion reactions were low,” Dr. Wang said. “It is indeed consistent with prior studies that reactions generally occur during rather than post infusion.”

The authors underscored the array of potential benefits in making changes to the requirement. “Anticipated benefits may include reducing SARS-CoV2 exposure risks for patients and staff, reducing patients’ treatment burden, increasing efficiency, as well as improving access to care without neglecting patient safety.”
 

Additional studies show consistent findings

Several other recent studies have shown similar results. In a study published in Multiple Sclerosis in October 2020, researchers with the Amsterdam University Medical Center found that, among 14,174 natalizumab infusions provided to 225 patients with RRMS between 2006 and 2018, 276 infusion-related adverse events occurred (1.95%) among 60 patients.

There were 11 severe infusion-related adverse events in nine patients (4.0%). All documented severe reactions occurred during the infusion. Among 19 moderate adverse events, 17 occurred during the infusion.

The researchers noted that the majority of patients who experienced severe infusion reactions had detectable antibodies against natalizumab. Such antibodies are associated with a higher risk for infusion-related adverse events.

Patients who did not have any symptoms of a reaction during the infusion had no clinically relevant moderate or severe reactions.

“Thus, the need for postinfusion observation will depend on the patients’ clinical status during the infusion,” they wrote. “Consequently, our data suggest that patients who do not have an infusion-related adverse event while receiving natalizumab treatment do not need to stay in the hospital for an additional observation hour.”
 

Rapid infusion protocol

In another recent study published in Multiple Sclerosis and Related Disorders in January 2021, researchers in Australia reported on the use of a rapid infusion protocol of natalizumab and ocrelizumab. The protocol was implemented to reduce the amount of time patients are required to spend in clinical settings during the COVID-19 pandemic.

In their analysis of 269 rapid infusions of natalizumab and 100 rapid infusions of ocrelizumab, there were two infusion-related reactions in the natalizumab group and eight in the ocrelizumab group.

All the reactions were mild to moderate, and no discontinuations were required. None of the reactions occurred during the postinfusion observation period.

“In the setting of COVID-19 pandemic, rapid infusion protocols could potentially save hospital resources and limit patient exposure to a high-risk clinical setting while still maintaining ongoing treatment of multiple sclerosis,” the authors wrote.

Under the rapid infusion protocol, patients receive three standard doses for 1 hour followed by 30 minutes of observation. In addition, infusions are reduced to 30 minutes, explained lead author Louise Rath, of clinical neurosciences, Alfred Health, in Melbourne.

“For our cohort of patients, the side effects were minimal,” she said.

“Rapid infusions allowed patients to have option of hospital in-home or office, ensuring work was not at risk by infusion,” she added. “Our governance has been very supportive, and we will be keeping rapid infusion post COVID.”

The authors have disclosed no relevant financial relationships.

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

Reactions to the infusion of natalizumab (Tysabri) for the treatment of multiple sclerosis (MS) are very uncommon, are usually mild, and nearly always occur during, not after, the infusion, new studies show.

Collectively, the results suggest the need to rethink the drug’s mandatory 1-hour postinfusion observation period – particularly when unnecessarily spending time in medical settings is discouraged because of concerns regarding COVID-19, the researchers concluded.

Their findings “highlight a potential opportunity to improve and streamline the infusion and postinfusion monitoring process,” reported the authors of one of the studies. The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Infusion reactions were rare

“In this systematic review of almost 10,000 natalizumab infusions, all infusion-related adverse events were mild, and no clinically relevant safety concerns were associated with natalizumab infusions,” they said.

The 1-hour postinfusion observation period for natalizumab, approved for the treatment of relapsing remitting MS (RRMS), is mandated by the Food and Drug Administration, as well as the European Medicines Agency, and applies to each dose, regardless of treatment duration, owing to concerns of infusion reactions. However, previous evidence has indicated that reactions are rare and are usually mild.

In addition to adding burden to the treatment regimen for patients and providers alike, any extended time in an environment where there is concern of heightened risk for SARS-CoV-2 exposure is a concern.

To evaluate the frequency, severity, and timing of infusion reactions, Yujie Wang, MD, of the department of neurology at the University of Washington, Seattle, and colleagues reviewed medical records of all patients who received natalizumab at the University of Washington MS Center’s infusion suite between July 2012 and September 2020.

Among 333 patients with RRMS, 9,682 infusions of natalizumab were provided over the study period, with a mean of 27 infusions per patient (range, 1-174). The mean age of the patients was 41 years, and 87 (26%) were male.

Overall, 33 infusion-related adverse events were reported in 26 patients, representing 0.34% of total infusions and 7.8% of patients.

In 77% of cases, the adverse event occurred during the infusion. In 92% of cases, the adverse event occurred within the first 6 months of treatment.

All of the events were described as mild. The most common were itching, gastrointestinal problems, headache, and flushing.

None of the reactions required emergency care or hospitalization. Symptoms were either self-managed or were managed easily with standard care. The treatment was continued in all cases.

“For physicians and providers who care for patients with MS and are comfortable with infusible therapies, it is no surprise that rates of clinically significant infusion reactions were low,” Dr. Wang said. “It is indeed consistent with prior studies that reactions generally occur during rather than post infusion.”

The authors underscored the array of potential benefits in making changes to the requirement. “Anticipated benefits may include reducing SARS-CoV2 exposure risks for patients and staff, reducing patients’ treatment burden, increasing efficiency, as well as improving access to care without neglecting patient safety.”
 

Additional studies show consistent findings

Several other recent studies have shown similar results. In a study published in Multiple Sclerosis in October 2020, researchers with the Amsterdam University Medical Center found that, among 14,174 natalizumab infusions provided to 225 patients with RRMS between 2006 and 2018, 276 infusion-related adverse events occurred (1.95%) among 60 patients.

There were 11 severe infusion-related adverse events in nine patients (4.0%). All documented severe reactions occurred during the infusion. Among 19 moderate adverse events, 17 occurred during the infusion.

The researchers noted that the majority of patients who experienced severe infusion reactions had detectable antibodies against natalizumab. Such antibodies are associated with a higher risk for infusion-related adverse events.

Patients who did not have any symptoms of a reaction during the infusion had no clinically relevant moderate or severe reactions.

“Thus, the need for postinfusion observation will depend on the patients’ clinical status during the infusion,” they wrote. “Consequently, our data suggest that patients who do not have an infusion-related adverse event while receiving natalizumab treatment do not need to stay in the hospital for an additional observation hour.”
 

Rapid infusion protocol

In another recent study published in Multiple Sclerosis and Related Disorders in January 2021, researchers in Australia reported on the use of a rapid infusion protocol of natalizumab and ocrelizumab. The protocol was implemented to reduce the amount of time patients are required to spend in clinical settings during the COVID-19 pandemic.

In their analysis of 269 rapid infusions of natalizumab and 100 rapid infusions of ocrelizumab, there were two infusion-related reactions in the natalizumab group and eight in the ocrelizumab group.

All the reactions were mild to moderate, and no discontinuations were required. None of the reactions occurred during the postinfusion observation period.

“In the setting of COVID-19 pandemic, rapid infusion protocols could potentially save hospital resources and limit patient exposure to a high-risk clinical setting while still maintaining ongoing treatment of multiple sclerosis,” the authors wrote.

Under the rapid infusion protocol, patients receive three standard doses for 1 hour followed by 30 minutes of observation. In addition, infusions are reduced to 30 minutes, explained lead author Louise Rath, of clinical neurosciences, Alfred Health, in Melbourne.

“For our cohort of patients, the side effects were minimal,” she said.

“Rapid infusions allowed patients to have option of hospital in-home or office, ensuring work was not at risk by infusion,” she added. “Our governance has been very supportive, and we will be keeping rapid infusion post COVID.”

The authors have disclosed no relevant financial relationships.

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

Reactions to the infusion of natalizumab (Tysabri) for the treatment of multiple sclerosis (MS) are very uncommon, are usually mild, and nearly always occur during, not after, the infusion, new studies show.

Collectively, the results suggest the need to rethink the drug’s mandatory 1-hour postinfusion observation period – particularly when unnecessarily spending time in medical settings is discouraged because of concerns regarding COVID-19, the researchers concluded.

Their findings “highlight a potential opportunity to improve and streamline the infusion and postinfusion monitoring process,” reported the authors of one of the studies. The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Infusion reactions were rare

“In this systematic review of almost 10,000 natalizumab infusions, all infusion-related adverse events were mild, and no clinically relevant safety concerns were associated with natalizumab infusions,” they said.

The 1-hour postinfusion observation period for natalizumab, approved for the treatment of relapsing remitting MS (RRMS), is mandated by the Food and Drug Administration, as well as the European Medicines Agency, and applies to each dose, regardless of treatment duration, owing to concerns of infusion reactions. However, previous evidence has indicated that reactions are rare and are usually mild.

In addition to adding burden to the treatment regimen for patients and providers alike, any extended time in an environment where there is concern of heightened risk for SARS-CoV-2 exposure is a concern.

To evaluate the frequency, severity, and timing of infusion reactions, Yujie Wang, MD, of the department of neurology at the University of Washington, Seattle, and colleagues reviewed medical records of all patients who received natalizumab at the University of Washington MS Center’s infusion suite between July 2012 and September 2020.

Among 333 patients with RRMS, 9,682 infusions of natalizumab were provided over the study period, with a mean of 27 infusions per patient (range, 1-174). The mean age of the patients was 41 years, and 87 (26%) were male.

Overall, 33 infusion-related adverse events were reported in 26 patients, representing 0.34% of total infusions and 7.8% of patients.

In 77% of cases, the adverse event occurred during the infusion. In 92% of cases, the adverse event occurred within the first 6 months of treatment.

All of the events were described as mild. The most common were itching, gastrointestinal problems, headache, and flushing.

None of the reactions required emergency care or hospitalization. Symptoms were either self-managed or were managed easily with standard care. The treatment was continued in all cases.

“For physicians and providers who care for patients with MS and are comfortable with infusible therapies, it is no surprise that rates of clinically significant infusion reactions were low,” Dr. Wang said. “It is indeed consistent with prior studies that reactions generally occur during rather than post infusion.”

The authors underscored the array of potential benefits in making changes to the requirement. “Anticipated benefits may include reducing SARS-CoV2 exposure risks for patients and staff, reducing patients’ treatment burden, increasing efficiency, as well as improving access to care without neglecting patient safety.”
 

Additional studies show consistent findings

Several other recent studies have shown similar results. In a study published in Multiple Sclerosis in October 2020, researchers with the Amsterdam University Medical Center found that, among 14,174 natalizumab infusions provided to 225 patients with RRMS between 2006 and 2018, 276 infusion-related adverse events occurred (1.95%) among 60 patients.

There were 11 severe infusion-related adverse events in nine patients (4.0%). All documented severe reactions occurred during the infusion. Among 19 moderate adverse events, 17 occurred during the infusion.

The researchers noted that the majority of patients who experienced severe infusion reactions had detectable antibodies against natalizumab. Such antibodies are associated with a higher risk for infusion-related adverse events.

Patients who did not have any symptoms of a reaction during the infusion had no clinically relevant moderate or severe reactions.

“Thus, the need for postinfusion observation will depend on the patients’ clinical status during the infusion,” they wrote. “Consequently, our data suggest that patients who do not have an infusion-related adverse event while receiving natalizumab treatment do not need to stay in the hospital for an additional observation hour.”
 

Rapid infusion protocol

In another recent study published in Multiple Sclerosis and Related Disorders in January 2021, researchers in Australia reported on the use of a rapid infusion protocol of natalizumab and ocrelizumab. The protocol was implemented to reduce the amount of time patients are required to spend in clinical settings during the COVID-19 pandemic.

In their analysis of 269 rapid infusions of natalizumab and 100 rapid infusions of ocrelizumab, there were two infusion-related reactions in the natalizumab group and eight in the ocrelizumab group.

All the reactions were mild to moderate, and no discontinuations were required. None of the reactions occurred during the postinfusion observation period.

“In the setting of COVID-19 pandemic, rapid infusion protocols could potentially save hospital resources and limit patient exposure to a high-risk clinical setting while still maintaining ongoing treatment of multiple sclerosis,” the authors wrote.

Under the rapid infusion protocol, patients receive three standard doses for 1 hour followed by 30 minutes of observation. In addition, infusions are reduced to 30 minutes, explained lead author Louise Rath, of clinical neurosciences, Alfred Health, in Melbourne.

“For our cohort of patients, the side effects were minimal,” she said.

“Rapid infusions allowed patients to have option of hospital in-home or office, ensuring work was not at risk by infusion,” she added. “Our governance has been very supportive, and we will be keeping rapid infusion post COVID.”

The authors have disclosed no relevant financial relationships.

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

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore.

“An important strength of this cohort is that it is a real-world cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.”

The research was presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Scrutinizing serum neurofilament light chain levels in a real-world cohort

Neurofilaments – neuron-specific proteins that release in response to neuroaxonal injury – have been observed to be elevated in a variety of neurologic disorders, and with a need for biomarkers in MS, there is high interest of their role in the disease. But studies involving real-world, heterogeneous MS populations are lacking, the researchers noted.

To take a broader look at the issue, Dr. Sotirchos and colleagues conducted a cross-sectional evaluation of 6,968 people with MS in the Multiple Sclerosis Partners Advancing Technology and Health Solutions (MS PATHS), a large network of MS centers in the United States and Europe.

Participants’ baseline serum neurofilament light chain levels were compared with those of 201 healthy controls in the cohort using a novel, high-throughput immunoassay (Siemens Healthineers).

Of those with MS, 1,202 (17.2%) showed elevated serum neurofilament light chain levels, above the age-specific 97.5th percentile derived from the healthy controls.

A look at key factors associated with elevations showed significant links to having progressive MS (odds ratio, 1.63), non-White race (OR, 1.43), type 2 diabetes (OR, 1.89), and smoking (current vs. never smoker; OR, 1.49).

Associations with age and symptom duration were somewhat complex, but overall, younger patients and those with shorter disease duration had the highest frequency of elevated serum neurofilament light chain levels.

Interestingly, those with a higher body mass index (BMI) showed a reduced odds of having elevated serum neurofilament light chain levels (OR, 0.83 per 5 kg/m² increase in BMI).

Evaluation of neuroperformance measures – including walking speed, manual dexterity and processing speed, and MRI data – showed that those with elevated serum neurofilament light chain levels had worse neurologic function, lower brain parenchymal fraction, lower thalamic volume, and higher T2 lesion volume (P < .001 for all).

Dr. Sotirchos noted that the higher rates of elevations in younger people, also observed in previous clinical trials, may reflect higher early-stage disease activity. “Generally, people who are younger and earlier in the course of disease tend to have more inflammatory disease activity in MS, and that could be what we’re capturing here, but we need to better understand the pathologic correlates of elevated serum neurofilament light chain levels.”

The lower levels of neurofilament light chain with higher BMI, also recently reported in another study, likewise need further investigation, including in healthy controls, Dr. Sotirchos added. “Having lower serum neurofilament light chain levels with increasing BMI could have to do with effects of blood volume and how the serum neurofilament light chain levels is distributed in the body,” he explained.

The findings suggest that interpretation of serum neurofilament light chain levels without accounting for BMI could result in false-negative or false-positive results, Dr. Sotirchos noted. “It will be important to further evaluate this observation in control populations and account for BMI in neurofilament light chain reference ranges.”

Dr. Sotirchos added that the 17% rate of elevated serum neurofilament light chain levels seen in people with MS in the study is likely an underestimate.

“This is a cross-sectional study and represents one sample per patient, so it is a snapshot in time,” he said. “With the nature of MS, we know that people’s levels fluctuate over time.” In addition, most patients were on disease-modifying therapy for MS, so serum neurofilament light chain elevations could have been suppressed.
 

Applying the findings to individual patients

Commenting on the findings, Jennifer Graves, MD, PhD, director of the neuroimmunology research program at the University of California, San Diego, said the study is an important addition to the ongoing evidence on serum neurofilament light chain in MS.

“The current presented research importantly addresses the gaps we have in understanding how best to apply serum filament light chain levels to individual patients and not just using them to assess group level means of outcome measures,” she said.

“The MS PATHS collaborative is looking at multiple factors (in addition to MS activity) that drive serum neurofilament light chain levels so meaningful and practical cutoffs for what’s abnormal can be created,” said Dr. Graves, who also directs the Rady Children’s Pediatric MS Clinic in San Diego.

Dr. Graves noted that the findings on BMI were unexpected. “Elevated BMI has been shown to be associated with greater brain atrophy and greater relapses and disability in MS participants, so to have an opposite effect with serum neurofilament light chain is interesting.

“My thoughts would be that obesity is somehow affecting measurable blood levels of this marker. I think it less likely BMI has a protective effect against neurodegeneration given the observations with other MS outcome measures,” she added. 
 

Future research

In terms of future directions, Dr. Sotirchos noted that the researchers are following the group longitudinally to further assess changes in neurofilament light chain over time, and will be looking at associations with longitudinal, clinical, and radiologic outcomes.

The current research, meanwhile, offers important insights in terms of developing precision reference ranges, he noted.

“It appears that reference ranges may need to account for sex, race, BMI, and comorbid/lifestyle factors,” Dr. Sotirchos said, “in order to potentially improve the performance of serum neurofilament light chain as a biomarker in MS and other neurological diseases.”

The study received funding from Biogen and the MS PATHS network receives funding from Biogen. Dr. Sotirchos has served on scientific advisory boards for Alexion, Viela Bio, and Genentech, and has received speaker honoraria from Viela Bio and Biogen. Dr. Graves has disclosed no relevant financial relationships.

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

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore.

“An important strength of this cohort is that it is a real-world cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.”

The research was presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Scrutinizing serum neurofilament light chain levels in a real-world cohort

Neurofilaments – neuron-specific proteins that release in response to neuroaxonal injury – have been observed to be elevated in a variety of neurologic disorders, and with a need for biomarkers in MS, there is high interest of their role in the disease. But studies involving real-world, heterogeneous MS populations are lacking, the researchers noted.

To take a broader look at the issue, Dr. Sotirchos and colleagues conducted a cross-sectional evaluation of 6,968 people with MS in the Multiple Sclerosis Partners Advancing Technology and Health Solutions (MS PATHS), a large network of MS centers in the United States and Europe.

Participants’ baseline serum neurofilament light chain levels were compared with those of 201 healthy controls in the cohort using a novel, high-throughput immunoassay (Siemens Healthineers).

Of those with MS, 1,202 (17.2%) showed elevated serum neurofilament light chain levels, above the age-specific 97.5th percentile derived from the healthy controls.

A look at key factors associated with elevations showed significant links to having progressive MS (odds ratio, 1.63), non-White race (OR, 1.43), type 2 diabetes (OR, 1.89), and smoking (current vs. never smoker; OR, 1.49).

Associations with age and symptom duration were somewhat complex, but overall, younger patients and those with shorter disease duration had the highest frequency of elevated serum neurofilament light chain levels.

Interestingly, those with a higher body mass index (BMI) showed a reduced odds of having elevated serum neurofilament light chain levels (OR, 0.83 per 5 kg/m² increase in BMI).

Evaluation of neuroperformance measures – including walking speed, manual dexterity and processing speed, and MRI data – showed that those with elevated serum neurofilament light chain levels had worse neurologic function, lower brain parenchymal fraction, lower thalamic volume, and higher T2 lesion volume (P < .001 for all).

Dr. Sotirchos noted that the higher rates of elevations in younger people, also observed in previous clinical trials, may reflect higher early-stage disease activity. “Generally, people who are younger and earlier in the course of disease tend to have more inflammatory disease activity in MS, and that could be what we’re capturing here, but we need to better understand the pathologic correlates of elevated serum neurofilament light chain levels.”

The lower levels of neurofilament light chain with higher BMI, also recently reported in another study, likewise need further investigation, including in healthy controls, Dr. Sotirchos added. “Having lower serum neurofilament light chain levels with increasing BMI could have to do with effects of blood volume and how the serum neurofilament light chain levels is distributed in the body,” he explained.

The findings suggest that interpretation of serum neurofilament light chain levels without accounting for BMI could result in false-negative or false-positive results, Dr. Sotirchos noted. “It will be important to further evaluate this observation in control populations and account for BMI in neurofilament light chain reference ranges.”

Dr. Sotirchos added that the 17% rate of elevated serum neurofilament light chain levels seen in people with MS in the study is likely an underestimate.

“This is a cross-sectional study and represents one sample per patient, so it is a snapshot in time,” he said. “With the nature of MS, we know that people’s levels fluctuate over time.” In addition, most patients were on disease-modifying therapy for MS, so serum neurofilament light chain elevations could have been suppressed.
 

Applying the findings to individual patients

Commenting on the findings, Jennifer Graves, MD, PhD, director of the neuroimmunology research program at the University of California, San Diego, said the study is an important addition to the ongoing evidence on serum neurofilament light chain in MS.

“The current presented research importantly addresses the gaps we have in understanding how best to apply serum filament light chain levels to individual patients and not just using them to assess group level means of outcome measures,” she said.

“The MS PATHS collaborative is looking at multiple factors (in addition to MS activity) that drive serum neurofilament light chain levels so meaningful and practical cutoffs for what’s abnormal can be created,” said Dr. Graves, who also directs the Rady Children’s Pediatric MS Clinic in San Diego.

Dr. Graves noted that the findings on BMI were unexpected. “Elevated BMI has been shown to be associated with greater brain atrophy and greater relapses and disability in MS participants, so to have an opposite effect with serum neurofilament light chain is interesting.

“My thoughts would be that obesity is somehow affecting measurable blood levels of this marker. I think it less likely BMI has a protective effect against neurodegeneration given the observations with other MS outcome measures,” she added. 
 

Future research

In terms of future directions, Dr. Sotirchos noted that the researchers are following the group longitudinally to further assess changes in neurofilament light chain over time, and will be looking at associations with longitudinal, clinical, and radiologic outcomes.

The current research, meanwhile, offers important insights in terms of developing precision reference ranges, he noted.

“It appears that reference ranges may need to account for sex, race, BMI, and comorbid/lifestyle factors,” Dr. Sotirchos said, “in order to potentially improve the performance of serum neurofilament light chain as a biomarker in MS and other neurological diseases.”

The study received funding from Biogen and the MS PATHS network receives funding from Biogen. Dr. Sotirchos has served on scientific advisory boards for Alexion, Viela Bio, and Genentech, and has received speaker honoraria from Viela Bio and Biogen. Dr. Graves has disclosed no relevant financial relationships.

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

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore.

“An important strength of this cohort is that it is a real-world cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.”

The research was presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Scrutinizing serum neurofilament light chain levels in a real-world cohort

Neurofilaments – neuron-specific proteins that release in response to neuroaxonal injury – have been observed to be elevated in a variety of neurologic disorders, and with a need for biomarkers in MS, there is high interest of their role in the disease. But studies involving real-world, heterogeneous MS populations are lacking, the researchers noted.

To take a broader look at the issue, Dr. Sotirchos and colleagues conducted a cross-sectional evaluation of 6,968 people with MS in the Multiple Sclerosis Partners Advancing Technology and Health Solutions (MS PATHS), a large network of MS centers in the United States and Europe.

Participants’ baseline serum neurofilament light chain levels were compared with those of 201 healthy controls in the cohort using a novel, high-throughput immunoassay (Siemens Healthineers).

Of those with MS, 1,202 (17.2%) showed elevated serum neurofilament light chain levels, above the age-specific 97.5th percentile derived from the healthy controls.

A look at key factors associated with elevations showed significant links to having progressive MS (odds ratio, 1.63), non-White race (OR, 1.43), type 2 diabetes (OR, 1.89), and smoking (current vs. never smoker; OR, 1.49).

Associations with age and symptom duration were somewhat complex, but overall, younger patients and those with shorter disease duration had the highest frequency of elevated serum neurofilament light chain levels.

Interestingly, those with a higher body mass index (BMI) showed a reduced odds of having elevated serum neurofilament light chain levels (OR, 0.83 per 5 kg/m² increase in BMI).

Evaluation of neuroperformance measures – including walking speed, manual dexterity and processing speed, and MRI data – showed that those with elevated serum neurofilament light chain levels had worse neurologic function, lower brain parenchymal fraction, lower thalamic volume, and higher T2 lesion volume (P < .001 for all).

Dr. Sotirchos noted that the higher rates of elevations in younger people, also observed in previous clinical trials, may reflect higher early-stage disease activity. “Generally, people who are younger and earlier in the course of disease tend to have more inflammatory disease activity in MS, and that could be what we’re capturing here, but we need to better understand the pathologic correlates of elevated serum neurofilament light chain levels.”

The lower levels of neurofilament light chain with higher BMI, also recently reported in another study, likewise need further investigation, including in healthy controls, Dr. Sotirchos added. “Having lower serum neurofilament light chain levels with increasing BMI could have to do with effects of blood volume and how the serum neurofilament light chain levels is distributed in the body,” he explained.

The findings suggest that interpretation of serum neurofilament light chain levels without accounting for BMI could result in false-negative or false-positive results, Dr. Sotirchos noted. “It will be important to further evaluate this observation in control populations and account for BMI in neurofilament light chain reference ranges.”

Dr. Sotirchos added that the 17% rate of elevated serum neurofilament light chain levels seen in people with MS in the study is likely an underestimate.

“This is a cross-sectional study and represents one sample per patient, so it is a snapshot in time,” he said. “With the nature of MS, we know that people’s levels fluctuate over time.” In addition, most patients were on disease-modifying therapy for MS, so serum neurofilament light chain elevations could have been suppressed.
 

Applying the findings to individual patients

Commenting on the findings, Jennifer Graves, MD, PhD, director of the neuroimmunology research program at the University of California, San Diego, said the study is an important addition to the ongoing evidence on serum neurofilament light chain in MS.

“The current presented research importantly addresses the gaps we have in understanding how best to apply serum filament light chain levels to individual patients and not just using them to assess group level means of outcome measures,” she said.

“The MS PATHS collaborative is looking at multiple factors (in addition to MS activity) that drive serum neurofilament light chain levels so meaningful and practical cutoffs for what’s abnormal can be created,” said Dr. Graves, who also directs the Rady Children’s Pediatric MS Clinic in San Diego.

Dr. Graves noted that the findings on BMI were unexpected. “Elevated BMI has been shown to be associated with greater brain atrophy and greater relapses and disability in MS participants, so to have an opposite effect with serum neurofilament light chain is interesting.

“My thoughts would be that obesity is somehow affecting measurable blood levels of this marker. I think it less likely BMI has a protective effect against neurodegeneration given the observations with other MS outcome measures,” she added. 
 

Future research

In terms of future directions, Dr. Sotirchos noted that the researchers are following the group longitudinally to further assess changes in neurofilament light chain over time, and will be looking at associations with longitudinal, clinical, and radiologic outcomes.

The current research, meanwhile, offers important insights in terms of developing precision reference ranges, he noted.

“It appears that reference ranges may need to account for sex, race, BMI, and comorbid/lifestyle factors,” Dr. Sotirchos said, “in order to potentially improve the performance of serum neurofilament light chain as a biomarker in MS and other neurological diseases.”

The study received funding from Biogen and the MS PATHS network receives funding from Biogen. Dr. Sotirchos has served on scientific advisory boards for Alexion, Viela Bio, and Genentech, and has received speaker honoraria from Viela Bio and Biogen. Dr. Graves has disclosed no relevant financial relationships.

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

Vitamin D deficiency detected at the time of multiple sclerosis (MS) diagnosis is associated with cognitive impairment and may also impact disability, according to new research that adds to the known adverse relationship between low vitamin D and MS.

“We confirmed that low vitamin D may affect not only early disability but also cognition in newly MS diagnosed patients,” said lead author Eleonora Virgilio, MD, of the MS Center, neurology unit, at the University of Eastern Piedmont, Novara, Italy.

“The possible effects of vitamin D on both cognition (in particular, information processing speed) and early disability in newly diagnosed MS patients needs to be further investigated because this association might represent a marker of future disability, supporting the need for prompt supplementation,” she said.

The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Low vitamin D and MS

Previous studies have linked insufficient serum vitamin D with everything from the development of MS to activity and disease progression, but less has been reported on a specific link to the impairment of cognitive function, an important complication of MS.

“Cognitive impairment, and, in particular, slowed information processing speed, is very frequent in the MS population from the early stages of disease, and frequently underestimated,” Dr. Virgilio noted. “It has yet to be completely elucidated what the exact underlying mechanisms are.”

To evaluate the relationship, Dr. Virgilio and colleagues enrolled 60 patients in Italy with MS who were newly diagnosed and had serum vitamin D levels collected upon diagnosis. The participants were also tested at diagnosis with the Symbol Digit Modalities Test (SDMT) for information processing speed, which is a hallmark of the cognitive impairment that can occur in MS and is typically the first cognitive domain to show effects of the disease.

Among the patients, 40 were female and the mean age at diagnosis was 39.5 years; 90% had relapsing remitting MS at baseline and 10% had progressive MS. Their median Expanded Disability Status Scale score at diagnosis was 1.5.

At baseline, as many as 85% of the participants (51) had low serum vitamin D levels, defined as below 30 ng/mL, which Dr. Virgilio noted is consistent with other rates reported among people with MS in the Lombardy region of Italy, where the study was conducted.

The patients had a mean vitamin D level of 21.17 ng/mL (± 10.02), with 51.7% considered to have a deficiency (less than 20 ng/mL) and 33.3% with an insufficiency (20-30 ng/mL).

Of the patients, 16 (27%) had cognitive impairment, defined as a z score of 1.5 or less. Their mean raw SDMT score was 46.50 (± 14.73) and mean z score was –0.62 (± 1.29).

Importantly, those with cognitive impairment were significantly more likely to have severe hypovitaminosis D, compared with those with sufficient vitamin D levels, none of whom showed cognitive impairment (P = .02).

Furthermore, vitamin D levels positively correlated with SDMT raw values (P = .001) and z score (P = .008).

Over a mean follow-up of 2 years, a significant correlation was observed between serum vitamin D levels at diagnosis and early disability on the MS severity score (MSSS; P = .02) and a weak correlation with age-related MSSS (ARMSS; P = .08) at the last clinical follow-up.

Dr. Virgilio noted that factors including disease treatment effects or other factors could have played a role in the weaker results. “It is possible that the linear correlation we found was not as strong as expected [because of] an effect of treatment with disease-modifying therapies or vitamin D supplementation, or because of the short follow-up available at the moment for our population – only for a mean period of 2 years after MS diagnosis.”

The mechanisms for vitamin D deficiency in the MS population are likely multifactorial, with genetic as well as environmental links, she noted.

“The immunomodulatory effects of vitamin D are well known,” Dr. Virgilio said.

“Vitamin D was already linked to cognitive function in other neurodegenerative diseases, [including] Alzheimer’s disease, but more importantly, also in other autoimmune diseases, such as systemic lupus erythematosus,” she explained.
 

Vitamin D also linked to long-term cognitive function

The study adds to recent research showing longer-term effects of vitamin D deficiency and cognitive impairment in MS: In the longitudinal BENEFIT trial published in 2020, researchers following 278 patients with MS over the course of 11 years found that a 50 ng/L higher mean vitamin D level in the first 2 years of the study was associated with a 65% lower odds of a poor performance on Paced Auditory Serial Addition Test scores at the 11-year follow-up.

That study also looked at neurofilament light chain concentrations, which are associated with MS disease activity, and found they were 20% lower among those with higher vitamin D at baseline. Smokers also had lower cognitive scores.

“Lower vitamin D and smoking after clinical onset predicted worse long-term cognitive function and neuronal integrity in patients with MS,” the authors concluded.

The authors disclosed no relevant financial relationships.

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

Vitamin D deficiency detected at the time of multiple sclerosis (MS) diagnosis is associated with cognitive impairment and may also impact disability, according to new research that adds to the known adverse relationship between low vitamin D and MS.

“We confirmed that low vitamin D may affect not only early disability but also cognition in newly MS diagnosed patients,” said lead author Eleonora Virgilio, MD, of the MS Center, neurology unit, at the University of Eastern Piedmont, Novara, Italy.

“The possible effects of vitamin D on both cognition (in particular, information processing speed) and early disability in newly diagnosed MS patients needs to be further investigated because this association might represent a marker of future disability, supporting the need for prompt supplementation,” she said.

The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Low vitamin D and MS

Previous studies have linked insufficient serum vitamin D with everything from the development of MS to activity and disease progression, but less has been reported on a specific link to the impairment of cognitive function, an important complication of MS.

“Cognitive impairment, and, in particular, slowed information processing speed, is very frequent in the MS population from the early stages of disease, and frequently underestimated,” Dr. Virgilio noted. “It has yet to be completely elucidated what the exact underlying mechanisms are.”

To evaluate the relationship, Dr. Virgilio and colleagues enrolled 60 patients in Italy with MS who were newly diagnosed and had serum vitamin D levels collected upon diagnosis. The participants were also tested at diagnosis with the Symbol Digit Modalities Test (SDMT) for information processing speed, which is a hallmark of the cognitive impairment that can occur in MS and is typically the first cognitive domain to show effects of the disease.

Among the patients, 40 were female and the mean age at diagnosis was 39.5 years; 90% had relapsing remitting MS at baseline and 10% had progressive MS. Their median Expanded Disability Status Scale score at diagnosis was 1.5.

At baseline, as many as 85% of the participants (51) had low serum vitamin D levels, defined as below 30 ng/mL, which Dr. Virgilio noted is consistent with other rates reported among people with MS in the Lombardy region of Italy, where the study was conducted.

The patients had a mean vitamin D level of 21.17 ng/mL (± 10.02), with 51.7% considered to have a deficiency (less than 20 ng/mL) and 33.3% with an insufficiency (20-30 ng/mL).

Of the patients, 16 (27%) had cognitive impairment, defined as a z score of 1.5 or less. Their mean raw SDMT score was 46.50 (± 14.73) and mean z score was –0.62 (± 1.29).

Importantly, those with cognitive impairment were significantly more likely to have severe hypovitaminosis D, compared with those with sufficient vitamin D levels, none of whom showed cognitive impairment (P = .02).

Furthermore, vitamin D levels positively correlated with SDMT raw values (P = .001) and z score (P = .008).

Over a mean follow-up of 2 years, a significant correlation was observed between serum vitamin D levels at diagnosis and early disability on the MS severity score (MSSS; P = .02) and a weak correlation with age-related MSSS (ARMSS; P = .08) at the last clinical follow-up.

Dr. Virgilio noted that factors including disease treatment effects or other factors could have played a role in the weaker results. “It is possible that the linear correlation we found was not as strong as expected [because of] an effect of treatment with disease-modifying therapies or vitamin D supplementation, or because of the short follow-up available at the moment for our population – only for a mean period of 2 years after MS diagnosis.”

The mechanisms for vitamin D deficiency in the MS population are likely multifactorial, with genetic as well as environmental links, she noted.

“The immunomodulatory effects of vitamin D are well known,” Dr. Virgilio said.

“Vitamin D was already linked to cognitive function in other neurodegenerative diseases, [including] Alzheimer’s disease, but more importantly, also in other autoimmune diseases, such as systemic lupus erythematosus,” she explained.
 

Vitamin D also linked to long-term cognitive function

The study adds to recent research showing longer-term effects of vitamin D deficiency and cognitive impairment in MS: In the longitudinal BENEFIT trial published in 2020, researchers following 278 patients with MS over the course of 11 years found that a 50 ng/L higher mean vitamin D level in the first 2 years of the study was associated with a 65% lower odds of a poor performance on Paced Auditory Serial Addition Test scores at the 11-year follow-up.

That study also looked at neurofilament light chain concentrations, which are associated with MS disease activity, and found they were 20% lower among those with higher vitamin D at baseline. Smokers also had lower cognitive scores.

“Lower vitamin D and smoking after clinical onset predicted worse long-term cognitive function and neuronal integrity in patients with MS,” the authors concluded.

The authors disclosed no relevant financial relationships.

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

Vitamin D deficiency detected at the time of multiple sclerosis (MS) diagnosis is associated with cognitive impairment and may also impact disability, according to new research that adds to the known adverse relationship between low vitamin D and MS.

“We confirmed that low vitamin D may affect not only early disability but also cognition in newly MS diagnosed patients,” said lead author Eleonora Virgilio, MD, of the MS Center, neurology unit, at the University of Eastern Piedmont, Novara, Italy.

“The possible effects of vitamin D on both cognition (in particular, information processing speed) and early disability in newly diagnosed MS patients needs to be further investigated because this association might represent a marker of future disability, supporting the need for prompt supplementation,” she said.

The findings were presented at the meeting held by the Americas Committee for Treatment and Research in Multiple Sclerosis.
 

Low vitamin D and MS

Previous studies have linked insufficient serum vitamin D with everything from the development of MS to activity and disease progression, but less has been reported on a specific link to the impairment of cognitive function, an important complication of MS.

“Cognitive impairment, and, in particular, slowed information processing speed, is very frequent in the MS population from the early stages of disease, and frequently underestimated,” Dr. Virgilio noted. “It has yet to be completely elucidated what the exact underlying mechanisms are.”

To evaluate the relationship, Dr. Virgilio and colleagues enrolled 60 patients in Italy with MS who were newly diagnosed and had serum vitamin D levels collected upon diagnosis. The participants were also tested at diagnosis with the Symbol Digit Modalities Test (SDMT) for information processing speed, which is a hallmark of the cognitive impairment that can occur in MS and is typically the first cognitive domain to show effects of the disease.

Among the patients, 40 were female and the mean age at diagnosis was 39.5 years; 90% had relapsing remitting MS at baseline and 10% had progressive MS. Their median Expanded Disability Status Scale score at diagnosis was 1.5.

At baseline, as many as 85% of the participants (51) had low serum vitamin D levels, defined as below 30 ng/mL, which Dr. Virgilio noted is consistent with other rates reported among people with MS in the Lombardy region of Italy, where the study was conducted.

The patients had a mean vitamin D level of 21.17 ng/mL (± 10.02), with 51.7% considered to have a deficiency (less than 20 ng/mL) and 33.3% with an insufficiency (20-30 ng/mL).

Of the patients, 16 (27%) had cognitive impairment, defined as a z score of 1.5 or less. Their mean raw SDMT score was 46.50 (± 14.73) and mean z score was –0.62 (± 1.29).

Importantly, those with cognitive impairment were significantly more likely to have severe hypovitaminosis D, compared with those with sufficient vitamin D levels, none of whom showed cognitive impairment (P = .02).

Furthermore, vitamin D levels positively correlated with SDMT raw values (P = .001) and z score (P = .008).

Over a mean follow-up of 2 years, a significant correlation was observed between serum vitamin D levels at diagnosis and early disability on the MS severity score (MSSS; P = .02) and a weak correlation with age-related MSSS (ARMSS; P = .08) at the last clinical follow-up.

Dr. Virgilio noted that factors including disease treatment effects or other factors could have played a role in the weaker results. “It is possible that the linear correlation we found was not as strong as expected [because of] an effect of treatment with disease-modifying therapies or vitamin D supplementation, or because of the short follow-up available at the moment for our population – only for a mean period of 2 years after MS diagnosis.”

The mechanisms for vitamin D deficiency in the MS population are likely multifactorial, with genetic as well as environmental links, she noted.

“The immunomodulatory effects of vitamin D are well known,” Dr. Virgilio said.

“Vitamin D was already linked to cognitive function in other neurodegenerative diseases, [including] Alzheimer’s disease, but more importantly, also in other autoimmune diseases, such as systemic lupus erythematosus,” she explained.
 

Vitamin D also linked to long-term cognitive function

The study adds to recent research showing longer-term effects of vitamin D deficiency and cognitive impairment in MS: In the longitudinal BENEFIT trial published in 2020, researchers following 278 patients with MS over the course of 11 years found that a 50 ng/L higher mean vitamin D level in the first 2 years of the study was associated with a 65% lower odds of a poor performance on Paced Auditory Serial Addition Test scores at the 11-year follow-up.

That study also looked at neurofilament light chain concentrations, which are associated with MS disease activity, and found they were 20% lower among those with higher vitamin D at baseline. Smokers also had lower cognitive scores.

“Lower vitamin D and smoking after clinical onset predicted worse long-term cognitive function and neuronal integrity in patients with MS,” the authors concluded.

The authors disclosed no relevant financial relationships.

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

With chronic pain common among people with multiple sclerosis (MS), approximately 20% of patients report opioid use - despite warnings that the drugs are generally not recommended for the management of chronic pain and ongoing concerns of addiction, new research shows.

“This high level of opioid use supports that better pain management treatment options, including nonpharmacological options, are needed for people with MS and pain,” wrote the authors of the study, which was presented at ACTRIMS Forum 2021, held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Previous research has shown that more than 50% of people with MS report chronic pain that is serious enough to interfere with daily activities, employment, and quality of life. Many with MS report that pain is one of their worst symptoms, the authors noted.

With surprisingly few studies evaluating opioid use in the MS population, Cinda L. Hugos, PT, associate professor of neurology with the VA Portland Health Care System and the department of neurology, Oregon Health and Science University, Portland, and colleagues investigated the issue in a sample of patients participating in a U.S. multisite MS fatigue management trial conducted between 2013 and 2014.

Of the 281 participants with MS in the study, 58 patients (20.6%) reported using prescription opioids. Among them, most – 44 (76%) – reported regular daily use, 10 (17%) reported using the drugs only as needed, 3 (5%) reported only short-term use, including after recent injury or dental surgery, and 1 provided incomplete information.

Those who reported opioid use had significantly worse fatigue scores on the Modified Fatigue Impact Scale (P = .015) and worse pain scores (P < .0001).

There were no significant differences in terms of age (mean age, 53 years), gender (69% were female), or race (in both groups, about 76% were White). No significant differences were seen in disability or depression scores in the opioid users versus nonusers.

“In this sample of people with multiple sclerosis who self-reported fatigue and volunteered to join an MS fatigue management research study, more than one in five reported using prescription opioids and nearly one in six used opioids daily,” the authors wrote. “Opioid users had more pain and fatigue than nonusers.”

Commenting on the study, Jeffrey Cohen, MD, president of ACTRIMS, said that the findings are consistent with his observations that “in the general population, opioids often are used to treat chronic pain in people with MS.”

But they’re not getting the drugs from his clinic. “We do not prescribe opioids in our clinic, referring such patients to a chronic pain program,” Dr. Cohen said. “However, there clearly is need for better treatment options.”

A previous study on opioid use by people with MS, published in 2015, found even higher rates – 42% reported having ever used opioids, and 38% reported currently using opioids.

Although reports of opioid use by patients with MS have been lacking, more has been published on the emerging use of cannabis-related products. One recent study showed that nearly half of people with MS reported using a cannabis-based therapy for nerve-based pain and sleep disturbances.

Although cannabis is considered safer than opioids, the authors noted that it has its own significant drawback – a “paucity of provider guidance.”

“The range of perceived benefits and potential differential effects of THC and cannabinoid highlight the need for personalized, evidence-based guidelines regarding cannabinoid use,” they wrote.
 

Stretching program for spasticity shows benefits

With spasticity representing a key contributor to MS pain and affecting more than 80% of people with MS, Ms. Hugos and colleagues are developing an alternative to medication – a nonpharmacologic stretching regimen called Spasticity: Take Control” (STC).

Based on evidence-based strategies for the treatment of spasticity in MS, the program involves exercises with daily routines of 15-20 minutes over 6 months.

In a pilot study of 66 patients, also presented at the ACTRIMS meeting, the investigators reported that the program showed significant reductions in pain severity and interference, measured with the Brief Pain Inventory–Short Form, compared with a control consisting of range of motion instruction over 6 months.

The study also offered insights on the specific areas of pain. Among those who reported chronic pain (42% in the STC group and 63.3% in the range-of-motion group), the pain was most frequently reported in the lower back (74.3%), legs (68.6%), or lower back and legs (88.6%).

Ms. Hugos noted that the findings suggest a potentially important nonpharmacologic alternative to spasticity-related pain in MS.

“Stretching is the cornerstone treatment for spasticity from all causes, but there is very little information on stretching exercises in MS or any other conditions,” Ms. Hugos said. “[Our] pilot study is the first and only study using a standardized, daily stretching exercise program to treat MS spasticity,” she said.

“A fully powered study is needed to better understand the impact of different types of exercise on pain severity and interference in multiple sclerosis,” she noted.

Ms. Hugos has received consulting fees from Greenwich Biosciences, Evidera, and Techspert.io. Dr. Cohen has received personal compensation for consulting for Adamas, Atara, Bristol-Myers Squibb, Convelo, MedDay, and Mylan.

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

With chronic pain common among people with multiple sclerosis (MS), approximately 20% of patients report opioid use - despite warnings that the drugs are generally not recommended for the management of chronic pain and ongoing concerns of addiction, new research shows.

“This high level of opioid use supports that better pain management treatment options, including nonpharmacological options, are needed for people with MS and pain,” wrote the authors of the study, which was presented at ACTRIMS Forum 2021, held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Previous research has shown that more than 50% of people with MS report chronic pain that is serious enough to interfere with daily activities, employment, and quality of life. Many with MS report that pain is one of their worst symptoms, the authors noted.

With surprisingly few studies evaluating opioid use in the MS population, Cinda L. Hugos, PT, associate professor of neurology with the VA Portland Health Care System and the department of neurology, Oregon Health and Science University, Portland, and colleagues investigated the issue in a sample of patients participating in a U.S. multisite MS fatigue management trial conducted between 2013 and 2014.

Of the 281 participants with MS in the study, 58 patients (20.6%) reported using prescription opioids. Among them, most – 44 (76%) – reported regular daily use, 10 (17%) reported using the drugs only as needed, 3 (5%) reported only short-term use, including after recent injury or dental surgery, and 1 provided incomplete information.

Those who reported opioid use had significantly worse fatigue scores on the Modified Fatigue Impact Scale (P = .015) and worse pain scores (P < .0001).

There were no significant differences in terms of age (mean age, 53 years), gender (69% were female), or race (in both groups, about 76% were White). No significant differences were seen in disability or depression scores in the opioid users versus nonusers.

“In this sample of people with multiple sclerosis who self-reported fatigue and volunteered to join an MS fatigue management research study, more than one in five reported using prescription opioids and nearly one in six used opioids daily,” the authors wrote. “Opioid users had more pain and fatigue than nonusers.”

Commenting on the study, Jeffrey Cohen, MD, president of ACTRIMS, said that the findings are consistent with his observations that “in the general population, opioids often are used to treat chronic pain in people with MS.”

But they’re not getting the drugs from his clinic. “We do not prescribe opioids in our clinic, referring such patients to a chronic pain program,” Dr. Cohen said. “However, there clearly is need for better treatment options.”

A previous study on opioid use by people with MS, published in 2015, found even higher rates – 42% reported having ever used opioids, and 38% reported currently using opioids.

Although reports of opioid use by patients with MS have been lacking, more has been published on the emerging use of cannabis-related products. One recent study showed that nearly half of people with MS reported using a cannabis-based therapy for nerve-based pain and sleep disturbances.

Although cannabis is considered safer than opioids, the authors noted that it has its own significant drawback – a “paucity of provider guidance.”

“The range of perceived benefits and potential differential effects of THC and cannabinoid highlight the need for personalized, evidence-based guidelines regarding cannabinoid use,” they wrote.
 

Stretching program for spasticity shows benefits

With spasticity representing a key contributor to MS pain and affecting more than 80% of people with MS, Ms. Hugos and colleagues are developing an alternative to medication – a nonpharmacologic stretching regimen called Spasticity: Take Control” (STC).

Based on evidence-based strategies for the treatment of spasticity in MS, the program involves exercises with daily routines of 15-20 minutes over 6 months.

In a pilot study of 66 patients, also presented at the ACTRIMS meeting, the investigators reported that the program showed significant reductions in pain severity and interference, measured with the Brief Pain Inventory–Short Form, compared with a control consisting of range of motion instruction over 6 months.

The study also offered insights on the specific areas of pain. Among those who reported chronic pain (42% in the STC group and 63.3% in the range-of-motion group), the pain was most frequently reported in the lower back (74.3%), legs (68.6%), or lower back and legs (88.6%).

Ms. Hugos noted that the findings suggest a potentially important nonpharmacologic alternative to spasticity-related pain in MS.

“Stretching is the cornerstone treatment for spasticity from all causes, but there is very little information on stretching exercises in MS or any other conditions,” Ms. Hugos said. “[Our] pilot study is the first and only study using a standardized, daily stretching exercise program to treat MS spasticity,” she said.

“A fully powered study is needed to better understand the impact of different types of exercise on pain severity and interference in multiple sclerosis,” she noted.

Ms. Hugos has received consulting fees from Greenwich Biosciences, Evidera, and Techspert.io. Dr. Cohen has received personal compensation for consulting for Adamas, Atara, Bristol-Myers Squibb, Convelo, MedDay, and Mylan.

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

With chronic pain common among people with multiple sclerosis (MS), approximately 20% of patients report opioid use - despite warnings that the drugs are generally not recommended for the management of chronic pain and ongoing concerns of addiction, new research shows.

“This high level of opioid use supports that better pain management treatment options, including nonpharmacological options, are needed for people with MS and pain,” wrote the authors of the study, which was presented at ACTRIMS Forum 2021, held by the Americas Committee for Treatment and Research in Multiple Sclerosis.

Previous research has shown that more than 50% of people with MS report chronic pain that is serious enough to interfere with daily activities, employment, and quality of life. Many with MS report that pain is one of their worst symptoms, the authors noted.

With surprisingly few studies evaluating opioid use in the MS population, Cinda L. Hugos, PT, associate professor of neurology with the VA Portland Health Care System and the department of neurology, Oregon Health and Science University, Portland, and colleagues investigated the issue in a sample of patients participating in a U.S. multisite MS fatigue management trial conducted between 2013 and 2014.

Of the 281 participants with MS in the study, 58 patients (20.6%) reported using prescription opioids. Among them, most – 44 (76%) – reported regular daily use, 10 (17%) reported using the drugs only as needed, 3 (5%) reported only short-term use, including after recent injury or dental surgery, and 1 provided incomplete information.

Those who reported opioid use had significantly worse fatigue scores on the Modified Fatigue Impact Scale (P = .015) and worse pain scores (P < .0001).

There were no significant differences in terms of age (mean age, 53 years), gender (69% were female), or race (in both groups, about 76% were White). No significant differences were seen in disability or depression scores in the opioid users versus nonusers.

“In this sample of people with multiple sclerosis who self-reported fatigue and volunteered to join an MS fatigue management research study, more than one in five reported using prescription opioids and nearly one in six used opioids daily,” the authors wrote. “Opioid users had more pain and fatigue than nonusers.”

Commenting on the study, Jeffrey Cohen, MD, president of ACTRIMS, said that the findings are consistent with his observations that “in the general population, opioids often are used to treat chronic pain in people with MS.”

But they’re not getting the drugs from his clinic. “We do not prescribe opioids in our clinic, referring such patients to a chronic pain program,” Dr. Cohen said. “However, there clearly is need for better treatment options.”

A previous study on opioid use by people with MS, published in 2015, found even higher rates – 42% reported having ever used opioids, and 38% reported currently using opioids.

Although reports of opioid use by patients with MS have been lacking, more has been published on the emerging use of cannabis-related products. One recent study showed that nearly half of people with MS reported using a cannabis-based therapy for nerve-based pain and sleep disturbances.

Although cannabis is considered safer than opioids, the authors noted that it has its own significant drawback – a “paucity of provider guidance.”

“The range of perceived benefits and potential differential effects of THC and cannabinoid highlight the need for personalized, evidence-based guidelines regarding cannabinoid use,” they wrote.
 

Stretching program for spasticity shows benefits

With spasticity representing a key contributor to MS pain and affecting more than 80% of people with MS, Ms. Hugos and colleagues are developing an alternative to medication – a nonpharmacologic stretching regimen called Spasticity: Take Control” (STC).

Based on evidence-based strategies for the treatment of spasticity in MS, the program involves exercises with daily routines of 15-20 minutes over 6 months.

In a pilot study of 66 patients, also presented at the ACTRIMS meeting, the investigators reported that the program showed significant reductions in pain severity and interference, measured with the Brief Pain Inventory–Short Form, compared with a control consisting of range of motion instruction over 6 months.

The study also offered insights on the specific areas of pain. Among those who reported chronic pain (42% in the STC group and 63.3% in the range-of-motion group), the pain was most frequently reported in the lower back (74.3%), legs (68.6%), or lower back and legs (88.6%).

Ms. Hugos noted that the findings suggest a potentially important nonpharmacologic alternative to spasticity-related pain in MS.

“Stretching is the cornerstone treatment for spasticity from all causes, but there is very little information on stretching exercises in MS or any other conditions,” Ms. Hugos said. “[Our] pilot study is the first and only study using a standardized, daily stretching exercise program to treat MS spasticity,” she said.

“A fully powered study is needed to better understand the impact of different types of exercise on pain severity and interference in multiple sclerosis,” she noted.

Ms. Hugos has received consulting fees from Greenwich Biosciences, Evidera, and Techspert.io. Dr. Cohen has received personal compensation for consulting for Adamas, Atara, Bristol-Myers Squibb, Convelo, MedDay, and Mylan.

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

Multiple sclerosis (MS) may not pose a higher risk for complications in pregnant women, according to a new study published online Feb. 3 in Neurology Clinical Practice. While pregnancy and childbirth are not regarded as conditions that engender high-risk pregnancy in the MS population, previous studies evaluating the effects of MS on pregnancy and parturition have yet to fully elucidate some outcomes for pregnant women and their babies in multiple sclerosis.

“Women with multiple sclerosis may be understandably concerned about the risk of pregnancy,” said Melinda Magyari, MD, PhD, a consultant at the University of Copenhagen. “While previous research has shown there is no higher risk of birth defect for babies born to women with MS, we wanted to find out if women with MS are at risk for a variety of pregnancy complications.”

MS is regarded as a progressive, neurological disease mediated by the immune system that demands careful consideration of numerous situations and life changes including family planning. The MS population is overwhelmingly female, as women account for three out of every four cases of MS. The majority of these women range from 20 to 40 years of age at the time of being diagnosed with MS. Despite the unknown risks of pregnancy-related complications and various perinatal complications in this patient population, women who have MS are not discouraged from conceiving.
 

Assessing pregnancy outcomes

This nationwide, population-based, cross-sectional study evaluated the pregnancies of 2,930 women with MS between Jan. 1, 1997, and Dec. 31, 2016, registered in the Danish Multiple Sclerosis Registry. The researchers compared pregnancy-related and prenatal outcomes to a 5% random sample of 56,958 randomly-selected pregnant women from Denmark’s general population who did not have MS. They found no differences in the risks associated with several pregnancy-related complications (e.g., preeclampsia, gestational diabetes, or placental complications), emergency Cesarean section (C-section), instrumental delivery, stillbirth, preterm birth, or congenital malformation. Apgar scores were low in both groups. A composite of various biometrics in newborns such as reflexes, muscle tone, and heart rate immediately following birth, the Apgar score is used to help assess the neonatal health, with a value of less than 7 considered low. Here, preterm birth is defined as delivery occurring before 37 weeks of gestation, and stillbirth describes a fetus born dead after 22 weeks of gestation.

Women in the MS cohort were more likely to have elective C-sections (odds ratio, 2.89 [95% confidence interval, 1.65-2.16]), induced labor (OR, 1.15 [95%CI, 1.01-1.31]) and have babies with low birth weight based on their gestational age (OR, 1.29 [95% CI, 1.04-1.60]). Nearly 30% of babies born in the cohort (n = 851) were born to mothers who had received disease-modifying therapy (DMT). Neonates exposed to DMT weighed an average of 116 g less than babies born to mothers who had not received DMT (3,378 g vs. 3,494 g) with a slightly lower gestational age (39 weeks as opposed to 40 weeks). However, babies born to mothers with MS were less likely to show signs of asphyxia (OR, 0.87 [95% CI, 0.78-0.97]) than the comparison cohort.

“We found overall, their pregnancies were just as healthy as those of the moms without MS,” Dr. Magyari said.
 

Comprehensive data

Denmark’s health care system has two key features that make it an attractive setting in which to conduct such a study – the first being its universal health care. The second advantage is that the country enacted several health registries in the 1970s and 1980s that enable the collection of more comprehensive data. For example, the Danish National Patient Register is a population-based registry that spans the entire nation, facilitating epidemiological research with what the study’s authors describe as “high generalizability.” Providing additional insights regarding the patient story helps add context to pregnancy and outcomes. Among the data collected on the women studied were demographics, contact information, and abortions, both spontaneous and medically induced. The country uses other databases and registries to capture additional data. For example, the Register of Legally Induced Abortions provides data regarding the context of medically induced abortions. In contrast, the Danish Medical Birth Registry provides context regarding specified variables regarding women’s pregnancies, delivery, and perinatal outcomes. Finally, the population’s education register offers information regarding patients’ educational history.

A key strength of this study is that the long duration of follow-up data from the Danish Medical Birth Registry, along with its comprehensive data collection, eliminates recall bias. Universal access to health care also improves the generalizability of data. A limitation of the study is its lack of data on maternal smoking and its effects on low gestational weights. The study also has some data gaps, including body mass index information missing from a large portion of the cohort. Finally, the sample size of newborns born to mothers who had received DMT therapy within the last 6 months of gestation was too underpowered to stratify based on first on first-line or second-line treatment.

Dr. Magyari served on scientific advisory boards for Biogen, Sanofi, Teva, Roche, Novartis, and Merck. She has also received honoraria for lecturing from Biogen, Merck, Novartis, Sanofi, Genzyme, and has received research support and support for congress participation from Biogen, Genzyme, Teva, Roche, Merck, and Novartis. Coauthors disclosed various fees received from Merck, Novartis, Biogen, Roche, Sanofi Genzyme, and Teva.

Multiple sclerosis (MS) may not pose a higher risk for complications in pregnant women, according to a new study published online Feb. 3 in Neurology Clinical Practice. While pregnancy and childbirth are not regarded as conditions that engender high-risk pregnancy in the MS population, previous studies evaluating the effects of MS on pregnancy and parturition have yet to fully elucidate some outcomes for pregnant women and their babies in multiple sclerosis.

“Women with multiple sclerosis may be understandably concerned about the risk of pregnancy,” said Melinda Magyari, MD, PhD, a consultant at the University of Copenhagen. “While previous research has shown there is no higher risk of birth defect for babies born to women with MS, we wanted to find out if women with MS are at risk for a variety of pregnancy complications.”

MS is regarded as a progressive, neurological disease mediated by the immune system that demands careful consideration of numerous situations and life changes including family planning. The MS population is overwhelmingly female, as women account for three out of every four cases of MS. The majority of these women range from 20 to 40 years of age at the time of being diagnosed with MS. Despite the unknown risks of pregnancy-related complications and various perinatal complications in this patient population, women who have MS are not discouraged from conceiving.
 

Assessing pregnancy outcomes

This nationwide, population-based, cross-sectional study evaluated the pregnancies of 2,930 women with MS between Jan. 1, 1997, and Dec. 31, 2016, registered in the Danish Multiple Sclerosis Registry. The researchers compared pregnancy-related and prenatal outcomes to a 5% random sample of 56,958 randomly-selected pregnant women from Denmark’s general population who did not have MS. They found no differences in the risks associated with several pregnancy-related complications (e.g., preeclampsia, gestational diabetes, or placental complications), emergency Cesarean section (C-section), instrumental delivery, stillbirth, preterm birth, or congenital malformation. Apgar scores were low in both groups. A composite of various biometrics in newborns such as reflexes, muscle tone, and heart rate immediately following birth, the Apgar score is used to help assess the neonatal health, with a value of less than 7 considered low. Here, preterm birth is defined as delivery occurring before 37 weeks of gestation, and stillbirth describes a fetus born dead after 22 weeks of gestation.

Women in the MS cohort were more likely to have elective C-sections (odds ratio, 2.89 [95% confidence interval, 1.65-2.16]), induced labor (OR, 1.15 [95%CI, 1.01-1.31]) and have babies with low birth weight based on their gestational age (OR, 1.29 [95% CI, 1.04-1.60]). Nearly 30% of babies born in the cohort (n = 851) were born to mothers who had received disease-modifying therapy (DMT). Neonates exposed to DMT weighed an average of 116 g less than babies born to mothers who had not received DMT (3,378 g vs. 3,494 g) with a slightly lower gestational age (39 weeks as opposed to 40 weeks). However, babies born to mothers with MS were less likely to show signs of asphyxia (OR, 0.87 [95% CI, 0.78-0.97]) than the comparison cohort.

“We found overall, their pregnancies were just as healthy as those of the moms without MS,” Dr. Magyari said.
 

Comprehensive data

Denmark’s health care system has two key features that make it an attractive setting in which to conduct such a study – the first being its universal health care. The second advantage is that the country enacted several health registries in the 1970s and 1980s that enable the collection of more comprehensive data. For example, the Danish National Patient Register is a population-based registry that spans the entire nation, facilitating epidemiological research with what the study’s authors describe as “high generalizability.” Providing additional insights regarding the patient story helps add context to pregnancy and outcomes. Among the data collected on the women studied were demographics, contact information, and abortions, both spontaneous and medically induced. The country uses other databases and registries to capture additional data. For example, the Register of Legally Induced Abortions provides data regarding the context of medically induced abortions. In contrast, the Danish Medical Birth Registry provides context regarding specified variables regarding women’s pregnancies, delivery, and perinatal outcomes. Finally, the population’s education register offers information regarding patients’ educational history.

A key strength of this study is that the long duration of follow-up data from the Danish Medical Birth Registry, along with its comprehensive data collection, eliminates recall bias. Universal access to health care also improves the generalizability of data. A limitation of the study is its lack of data on maternal smoking and its effects on low gestational weights. The study also has some data gaps, including body mass index information missing from a large portion of the cohort. Finally, the sample size of newborns born to mothers who had received DMT therapy within the last 6 months of gestation was too underpowered to stratify based on first on first-line or second-line treatment.

Dr. Magyari served on scientific advisory boards for Biogen, Sanofi, Teva, Roche, Novartis, and Merck. She has also received honoraria for lecturing from Biogen, Merck, Novartis, Sanofi, Genzyme, and has received research support and support for congress participation from Biogen, Genzyme, Teva, Roche, Merck, and Novartis. Coauthors disclosed various fees received from Merck, Novartis, Biogen, Roche, Sanofi Genzyme, and Teva.

Multiple sclerosis (MS) may not pose a higher risk for complications in pregnant women, according to a new study published online Feb. 3 in Neurology Clinical Practice. While pregnancy and childbirth are not regarded as conditions that engender high-risk pregnancy in the MS population, previous studies evaluating the effects of MS on pregnancy and parturition have yet to fully elucidate some outcomes for pregnant women and their babies in multiple sclerosis.

“Women with multiple sclerosis may be understandably concerned about the risk of pregnancy,” said Melinda Magyari, MD, PhD, a consultant at the University of Copenhagen. “While previous research has shown there is no higher risk of birth defect for babies born to women with MS, we wanted to find out if women with MS are at risk for a variety of pregnancy complications.”

MS is regarded as a progressive, neurological disease mediated by the immune system that demands careful consideration of numerous situations and life changes including family planning. The MS population is overwhelmingly female, as women account for three out of every four cases of MS. The majority of these women range from 20 to 40 years of age at the time of being diagnosed with MS. Despite the unknown risks of pregnancy-related complications and various perinatal complications in this patient population, women who have MS are not discouraged from conceiving.
 

Assessing pregnancy outcomes

This nationwide, population-based, cross-sectional study evaluated the pregnancies of 2,930 women with MS between Jan. 1, 1997, and Dec. 31, 2016, registered in the Danish Multiple Sclerosis Registry. The researchers compared pregnancy-related and prenatal outcomes to a 5% random sample of 56,958 randomly-selected pregnant women from Denmark’s general population who did not have MS. They found no differences in the risks associated with several pregnancy-related complications (e.g., preeclampsia, gestational diabetes, or placental complications), emergency Cesarean section (C-section), instrumental delivery, stillbirth, preterm birth, or congenital malformation. Apgar scores were low in both groups. A composite of various biometrics in newborns such as reflexes, muscle tone, and heart rate immediately following birth, the Apgar score is used to help assess the neonatal health, with a value of less than 7 considered low. Here, preterm birth is defined as delivery occurring before 37 weeks of gestation, and stillbirth describes a fetus born dead after 22 weeks of gestation.

Women in the MS cohort were more likely to have elective C-sections (odds ratio, 2.89 [95% confidence interval, 1.65-2.16]), induced labor (OR, 1.15 [95%CI, 1.01-1.31]) and have babies with low birth weight based on their gestational age (OR, 1.29 [95% CI, 1.04-1.60]). Nearly 30% of babies born in the cohort (n = 851) were born to mothers who had received disease-modifying therapy (DMT). Neonates exposed to DMT weighed an average of 116 g less than babies born to mothers who had not received DMT (3,378 g vs. 3,494 g) with a slightly lower gestational age (39 weeks as opposed to 40 weeks). However, babies born to mothers with MS were less likely to show signs of asphyxia (OR, 0.87 [95% CI, 0.78-0.97]) than the comparison cohort.

“We found overall, their pregnancies were just as healthy as those of the moms without MS,” Dr. Magyari said.
 

Comprehensive data

Denmark’s health care system has two key features that make it an attractive setting in which to conduct such a study – the first being its universal health care. The second advantage is that the country enacted several health registries in the 1970s and 1980s that enable the collection of more comprehensive data. For example, the Danish National Patient Register is a population-based registry that spans the entire nation, facilitating epidemiological research with what the study’s authors describe as “high generalizability.” Providing additional insights regarding the patient story helps add context to pregnancy and outcomes. Among the data collected on the women studied were demographics, contact information, and abortions, both spontaneous and medically induced. The country uses other databases and registries to capture additional data. For example, the Register of Legally Induced Abortions provides data regarding the context of medically induced abortions. In contrast, the Danish Medical Birth Registry provides context regarding specified variables regarding women’s pregnancies, delivery, and perinatal outcomes. Finally, the population’s education register offers information regarding patients’ educational history.

A key strength of this study is that the long duration of follow-up data from the Danish Medical Birth Registry, along with its comprehensive data collection, eliminates recall bias. Universal access to health care also improves the generalizability of data. A limitation of the study is its lack of data on maternal smoking and its effects on low gestational weights. The study also has some data gaps, including body mass index information missing from a large portion of the cohort. Finally, the sample size of newborns born to mothers who had received DMT therapy within the last 6 months of gestation was too underpowered to stratify based on first on first-line or second-line treatment.

Dr. Magyari served on scientific advisory boards for Biogen, Sanofi, Teva, Roche, Novartis, and Merck. She has also received honoraria for lecturing from Biogen, Merck, Novartis, Sanofi, Genzyme, and has received research support and support for congress participation from Biogen, Genzyme, Teva, Roche, Merck, and Novartis. Coauthors disclosed various fees received from Merck, Novartis, Biogen, Roche, Sanofi Genzyme, and Teva.