Efficacy of Ocrelizumab in Autoimmune Encephalitis

Subjects will be randomized in a 1:1 fashion to receive infusion of Ocrelizumab (2 doses at 300 mg and 1 dose at 600 mg) or matched placebo. The 2 300 mg doses will be administered at day 2 and day 14. The 600 mg dose will be administered during the 6 month visit. The drug will be administered via infusion three times throughout the trial period: after the initial screening, at two weeks from initial infusion, and at 6 months.

This will be the matching placebo used in the study.