Clinical Study to Compare the Efficacy and Safety of Ponesimod to Placebo in Subjects With Active Relapsing Multiple Sclerosis Who Are Treated With Dimethyl Fumarate (Tecfidera®)

Assessment of Tecfidera® in Radiologically Isolated Syndrome (RIS)

A Study to Evaluate Ocrelizumab Treatment in Participants With Progressive Multiple Sclerosis

Expanded Access Program for Ocrelizumab in Participants With Primary Progressive Multiple Sclerosis

Pilot Study to Assess the Efficacy & Safety of H.P. Acthar® Gel in Subjects With Relapsing-remitting Multiple Sclerosis