Skip to Content

AAN: Race May Affect Response to Anti-CD20 Therapy for MS, NMOSD

THURSDAY, April 15, 2021 -- For patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) receiving anti-CD20 treatment, B-cell repopulation occurs in more African American than White patients between six and 12 months after infusion, according to a study presented at the annual meeting of the American Academy of Neurology, held virtually from April 17 to 22.

Lucia Saidenberg, from the NYU Grossman School of Medicine in New York City, and colleagues retrospectively collected demographics, disease-related information, and anti-CD20 treatment history on patients with MS or NMOSD who had flow cytometry results after infusion of rituximab or ocrelizumab.

At a median of 6.8 months following anti-CD20 infusion, the researchers found that 29.8 percent of the 168 patients (134 with MS; 32 with NMOSD) had detectable B-cell repopulation, defined as any detectable number of CD19+ cells on flow cytometry. None of the patients had B-cell repopulation less than four months following anti-CD20 infusion; 23 and 61 percent of patients had B-cell repopulation between four and six months and between six and 12 months, respectively, following infusion. African American and White patients showed no differences in the frequency of B-cell repopulation at four to six months following infusion, while at six to 12 months following infusion, the frequency of B-cell repopulation was significantly higher among African Americans versus Whites (76.2 versus 33.3 percent).

"Our findings raise the question of whether the same therapy dose may be equally effective for all people," a coauthor said in a statement.

Press Release

More Information

© 2021 HealthDay. All rights reserved.

Read this next

AI Algorithm Uses Brain MRI to ID Multiple Sclerosis Subtypes

TUESDAY, April 20, 2021 -- A machine learning algorithm can use data from brain magnetic resonance imaging (MRI) to identify subtypes of multiple sclerosis (MS), according to a...

Physician's Briefing Weekly Coronavirus Roundup

Here is what the editors at Physician's Briefing chose as the most important COVID-19 developments for you and your practice for the week of March 15 to 19, 2021. This roundup...

Greater Disability Tied to Worse COVID-19 Severity in MS Patients

FRIDAY, March 19, 2021 -- Ambulatory disability and older age are associated with worse clinical severity of COVID-19, including death, among patients with multiple sclerosis...

More News Resources

Subscribe to our Newsletter

Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.