A Single-Center Study to Characterize the Safety and Efficacy of Ublituximab in Older Adults With Relapsing Forms of Multiple Sclerosis (RMS)

This study is being done to see how safe and effective ublituximab is when given to older adult patients for their RMS. Since RMS patients over age 55 were excluded from previous clinical studies that studied the safety and efficacy of ublituximab, this study is designed to better understand how well this drug is tolerated in RMS patients between the ages of 55-80 years. Primary endpoints include: * Incidence of infection rate from Baseline to Month 24/EOS (including UTI and other active acute, opportunistic and/or chronic infection) * Incidence of TEAS/SAEs from Baseline to Month 24 with consideration to nature, severity, and occurrence rate of AEs Approximately 20 participants are expected to be enrolled. Participation in this study will last approximately 24 months and will include approximately 6 study visits to the study center.