Study Overview: This study will check if the medication **ublituximab** can help improve walking and reduce the chance of falling in people with **relapsing multiple sclerosis (RMS)**, which is a disease where the immune system attacks the nerves. **Ublituximab** is a treatment given over 48 weeks to 25 people. Participants' walking and thinking skills will be tested before treatment, halfway through, and after the treatment ends. They will also wear a safety harness and walk on a treadmill to test their balance.
- Duration and Visits: The study lasts 48 weeks with multiple assessment points.
- Risks: Participants will undergo balance tests on a treadmill with safety gear.
- Eligibility: Participants must be between 18-55 years old, able to walk 25 feet, and not be pregnant.
Results may show if ublituximab helps with walking and thinking in RMS, possibly improving life quality.