Available in Mexico, United States, Colombia, Spain
The screening phase will last up to 24 weeks. In the double-blind treatment phase,
participants will undergo at least 120 weeks of study treatment. Study drug (ocrelizumab
or placebo) will be administered every 24 weeks. In the FU1 phase, all participants who
discontinue prematurely from the double-blind treatment phase will enter the FU1 phase,
including participants who receive post-double progression ocrelizumab (PDP OCR)
treatment, other immunomodulatory or immunosuppressive treatment(s) for MS, commercial
ocrelizumab, or no treatment. The FU1 phase will run in parallel with the double-blind
treatment phase until the primary analysis is performed. If the primary analysis is
positive, an optional OLE phase is planned for eligible participants who either have
remained in the double-blind treatment phase or are on PDP OCR treatment at the time of
the primary analysis and, in the opinion of the investigator, could benefit from
ocrelizumab treatment. The follow-up 2 (FU2) phase will begin after the primary analysis
is performed. The following participants will move into the FU2 phase: participants who
are ongoing in the FU1 and not on PDP OCR treatment at the time of primary analysis;
participants who are ongoing in the double-blind treatment phase or receiving PDP OCR at
the time of the primary analysis and do not enter the OLE phase; participants who
complete or withdraw from the OLE phase. At the end of the FU2, all participants will
move into B-cell monitoring (BCM) phase until the end of the study. This study will end
when all participants who are not being treated with an alternative B-cell depleting
therapy have repleted his or her B-cells.
1000Patients around the world