Ocrelizumab Increases Likelihood of No Evidence of Disease Progression

LONDON—Treatment with ocrelizumab increases the proportion of patients with primary progressive multiple sclerosis (MS) with no evidence of progression (NEP) at 120 weeks, compared with placebo, according to a post hoc analysis presented at the 32nd Congress of the European Committee for Treatment and Research in MS (ECTRIMS). NEP was measured by the absence of composite disability progression using 12-week confirmed disability progression, the timed 25-foot walk test, and the nine-hole peg test.

Primary progressive MS is characterized by steadily increasing, objectively documented neurologic dysfunction or disability without recovery, although patients may have fluctuations and phases of stability.

Primary progressive MS remains a severely disabling condition with high unmet medical need. Investigators believe that B cells contribute to the pathogenesis of MS, including primary progressive MS. Ocrelizumab, a recombinant humanized monoclonal antibody that selectively targets CD20⁺ B cells, showed superior efficacy and favorable safety, compared with placebo, in the phase III ORATORIO study in patients with primary progressive MS.

Xavier Montalban, MD, PhD, Chair of the Department of Neurology-Neuroimmunology and Director of the Multiple Sclerosis Centre of Catalonia at Vall d’Hebron University Hospital in Barcelona, and colleagues sought to assess the effect of ocrelizumab from baseline to Week 120 on the proportion of patients with NEP in the ORATORIO study.

In all, 732 patients were randomized (2:1) to receive 600 mg of ocrelizumab as two 300-mg IV infusions 14 days apart, or placebo every 24 weeks for at least 120 weeks until a prespecified number of 12-week confirmed disability progression events (as measured by Expanded Disability Status Scale score) occurred. Patients with NEP were defined as having no 12-week confirmed disability progression, and no 12-week confirmed progression of 20% or more on the timed 25-foot walk test and on the nine-hole peg test. A total of 230 placebo-treated patients and 461 ocrelizumab-treated patients were evaluable in this exploratory analysis of the ORATORIO trial.

Compared with placebo, ocrelizumab significantly increased the proportion of patients with NEP at Week 120. The relative risk of NEP for ocrelizumab versus placebo was 1.47. The proportions of ocrelizumab- and placebo-treated patients with NEP up to Week 120 were 42.7% and 29.1%, respectively. This result represents a 47% relative increase in the ocrelizumab group. The proportions of ocrelizumab- and placebo-treated patients with NEP for the individual components of NEP up to Week 120 were 68.5% and 63.0%, respectively, for 12-week confirmed disability progression; 51.0% and 38.7%, respectively, for the timed 25-foot walk test; and 82.2% and 71.3%, respectively for the nine-hole peg test.

The study was sponsored by F. Hoffmann-La Roche.

LONDON—Treatment with ocrelizumab increases the proportion of patients with primary progressive multiple sclerosis (MS) with no evidence of progression (NEP) at 120 weeks, compared with placebo, according to a post hoc analysis presented at the 32nd Congress of the European Committee for Treatment and Research in MS (ECTRIMS). NEP was measured by the absence of composite disability progression using 12-week confirmed disability progression, the timed 25-foot walk test, and the nine-hole peg test.

Primary progressive MS is characterized by steadily increasing, objectively documented neurologic dysfunction or disability without recovery, although patients may have fluctuations and phases of stability.

Primary progressive MS remains a severely disabling condition with high unmet medical need. Investigators believe that B cells contribute to the pathogenesis of MS, including primary progressive MS. Ocrelizumab, a recombinant humanized monoclonal antibody that selectively targets CD20⁺ B cells, showed superior efficacy and favorable safety, compared with placebo, in the phase III ORATORIO study in patients with primary progressive MS.

Xavier Montalban, MD, PhD, Chair of the Department of Neurology-Neuroimmunology and Director of the Multiple Sclerosis Centre of Catalonia at Vall d’Hebron University Hospital in Barcelona, and colleagues sought to assess the effect of ocrelizumab from baseline to Week 120 on the proportion of patients with NEP in the ORATORIO study.

In all, 732 patients were randomized (2:1) to receive 600 mg of ocrelizumab as two 300-mg IV infusions 14 days apart, or placebo every 24 weeks for at least 120 weeks until a prespecified number of 12-week confirmed disability progression events (as measured by Expanded Disability Status Scale score) occurred. Patients with NEP were defined as having no 12-week confirmed disability progression, and no 12-week confirmed progression of 20% or more on the timed 25-foot walk test and on the nine-hole peg test. A total of 230 placebo-treated patients and 461 ocrelizumab-treated patients were evaluable in this exploratory analysis of the ORATORIO trial.

Compared with placebo, ocrelizumab significantly increased the proportion of patients with NEP at Week 120. The relative risk of NEP for ocrelizumab versus placebo was 1.47. The proportions of ocrelizumab- and placebo-treated patients with NEP up to Week 120 were 42.7% and 29.1%, respectively. This result represents a 47% relative increase in the ocrelizumab group. The proportions of ocrelizumab- and placebo-treated patients with NEP for the individual components of NEP up to Week 120 were 68.5% and 63.0%, respectively, for 12-week confirmed disability progression; 51.0% and 38.7%, respectively, for the timed 25-foot walk test; and 82.2% and 71.3%, respectively for the nine-hole peg test.

The study was sponsored by F. Hoffmann-La Roche.

LONDON—Treatment with ocrelizumab increases the proportion of patients with primary progressive multiple sclerosis (MS) with no evidence of progression (NEP) at 120 weeks, compared with placebo, according to a post hoc analysis presented at the 32nd Congress of the European Committee for Treatment and Research in MS (ECTRIMS). NEP was measured by the absence of composite disability progression using 12-week confirmed disability progression, the timed 25-foot walk test, and the nine-hole peg test.

Primary progressive MS is characterized by steadily increasing, objectively documented neurologic dysfunction or disability without recovery, although patients may have fluctuations and phases of stability.

Primary progressive MS remains a severely disabling condition with high unmet medical need. Investigators believe that B cells contribute to the pathogenesis of MS, including primary progressive MS. Ocrelizumab, a recombinant humanized monoclonal antibody that selectively targets CD20⁺ B cells, showed superior efficacy and favorable safety, compared with placebo, in the phase III ORATORIO study in patients with primary progressive MS.

Xavier Montalban, MD, PhD, Chair of the Department of Neurology-Neuroimmunology and Director of the Multiple Sclerosis Centre of Catalonia at Vall d’Hebron University Hospital in Barcelona, and colleagues sought to assess the effect of ocrelizumab from baseline to Week 120 on the proportion of patients with NEP in the ORATORIO study.

In all, 732 patients were randomized (2:1) to receive 600 mg of ocrelizumab as two 300-mg IV infusions 14 days apart, or placebo every 24 weeks for at least 120 weeks until a prespecified number of 12-week confirmed disability progression events (as measured by Expanded Disability Status Scale score) occurred. Patients with NEP were defined as having no 12-week confirmed disability progression, and no 12-week confirmed progression of 20% or more on the timed 25-foot walk test and on the nine-hole peg test. A total of 230 placebo-treated patients and 461 ocrelizumab-treated patients were evaluable in this exploratory analysis of the ORATORIO trial.

Compared with placebo, ocrelizumab significantly increased the proportion of patients with NEP at Week 120. The relative risk of NEP for ocrelizumab versus placebo was 1.47. The proportions of ocrelizumab- and placebo-treated patients with NEP up to Week 120 were 42.7% and 29.1%, respectively. This result represents a 47% relative increase in the ocrelizumab group. The proportions of ocrelizumab- and placebo-treated patients with NEP for the individual components of NEP up to Week 120 were 68.5% and 63.0%, respectively, for 12-week confirmed disability progression; 51.0% and 38.7%, respectively, for the timed 25-foot walk test; and 82.2% and 71.3%, respectively for the nine-hole peg test.

The study was sponsored by F. Hoffmann-La Roche.