RecruitingPhase 4Drug trialUblituximab (Briumvi) for Early Forms of Relapsing Multiple SclerosisIn this prospective, open-label, single-arm, single-institution trial, the investigators will accomplish the following two aims: 1. study the safety and tolerability of Ublituximab (Briumvi) twice annually in participants with early MS over a treatment observation period of \~12 months. 2. study the pre- and post-treatment change in plasma neurofilament light chain, tested at baseline pre-Ublituximab treatment, and q24 weeks for 96 weeks post Ublituximab treatment initiation.