A Phase III, Non-Inferiority, Randomized, Open-Label, Parallel Group, Multicenter Study To Investigate The Pharmacokinetics, Pharmacodynamics, Safety And Radiological And Clinical Effects Of Subcutaneous Ocrelizumab Versus Intravenous Ocrelizumab In Patients With Multiple Sclerosis

Inclusion Criteria: * Diagnosis of PPMS or RMS according to the revised McDonald 2017 criteria (Thompson et al. 2018) * EDSS score, 0-6.5, inclusive, at screening * Neurological stability for ≥30 days prior to both screening and baseline * Disease duration from onset of MS symptoms of less than 15 years for patients with EDSS score \<2.0 at screening * For females participants, without reproductive potential may be enrolled if post-menopausal, unless receiving a hormonal therapy for menopause or if surgically sterile * For females of childbearing potential, agreement to remain abstinent or use adequate contraceptive methods Exclusion Criteria: * Any known or suspected active infection at screening or baseline (except nailbed infections), or any major episode of infection requiring hospitalization or treatment with IV anti microbials within 8 weeks prior to and during screening or treatment with oral anti microbials within 2 weeks prior to and during screening * History of confirmed or suspected progressive multifocal leukoencephalopathy (PML) * History of cancer, including hematologic malignancy and solid tumors, within 10 years of screening * Immunocompromised state * Receipt of a live-attenuated vaccine within 6 weeks prior to randomization Influenza vaccination is permitted if the inactivated vaccine formulation is administered * Inability to complete an MRI or contraindication to gadolinium administration * Contraindications to mandatory premedications for IRRs, includ…