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Journal Articles Journal of Neurology Year : 2019

Ocrelizumab efficacy in subgroups of patients with relapsing multiple sclerosis

Abstract

Objective The efficacy and safety of ocrelizumab, versus interferon (IFN) β-1a, for the treatment of relapsing multiple sclerosis (RMS) from the identically designed OPERA I (NCT01247324) and OPERA II (NCT01412333) phase III studies has been reported; here we present subgroup analyses of efficacy endpoints from the pooled OPERA I and OPERA II populations. Methods Patients with RMS were randomized to either ocrelizumab 600 mg administered by intravenous infusion every 24 weeks or subcutaneous IFN β-1a 44 µg three times per week throughout the 96-week treatment period. Relapse, disability, and MRI outcomes were analyzed for predefined and post hoc subgroups based on demographic and disease characteristics along with prior treatment using appropriate statistical tests to determine the treatment effect in subgroups and treatmentby-subgroup interactions. Results The significant treatment benefit of ocrelizumab, versus IFN β-1a, observed in the overall OPERA I and OPERA II pooled populations was maintained across most subgroup strata for all endpoints, including annualized relapse rate, disability progression, and MRI outputs. Conclusions The treatment effect of ocrelizumab versus IFN β-1a, measured by clinical and MRI outcomes, was maintained across most of the subgroups and strata of interest, and the pattern of treatment benefit across all subgroups was consistent with that from the pooled OPERA studies.
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Dates and versions

hal-04465305 , version 1 (19-02-2024)

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Benjamin Turner, Bruce a C Cree, Ludwig Kappos, Xavier Montalban, Caroline Papeix, et al.. Ocrelizumab efficacy in subgroups of patients with relapsing multiple sclerosis. Journal of Neurology, 2019, 266, pp.1182 - 1193. ⟨10.1007/s00415-019-09248-6⟩. ⟨hal-04465305⟩
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