A Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Efficacy and Safety of PEGylated Interferon Beta-1a (BIIB017) in Subjects With Relapsing Multiple Sclerosis
A Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Efficacy and Safety of PEGylated Interferon Beta-1a (BIIB017) in Subjects With Relapsing Multiple Sclerosis
The primary objective of this study is to determine the efficacy of peginterferon beta-1a in reducing the annualized relapse rate (ARR) in participants with relapsing multiple sclerosis (RMS) at 1 year. The secondary objectives of this study are to determine whether peginterferon beta-1a, at 1 year when compared with placebo, is effective in reducing the total number of new or newly enlarging T2 hyperintense lesions on brain magnetic resonance imaging (MRI) scans, reducing the proportion of participants who relapse, and slowing the progression of disability.
This is a global multicenter, randomized, double-blind, parallel-group, placebo-controlled study. The treatment period is 96 weeks (2 years) in duration. Treatment Year 1 (Week 0 to Week 48) is referred to as the placebo-controlled treatment period of the study. At the beginning of Treatment Year 1, participants were randomized to receive placebo, peginterferon beta-1a 125 μg every 2 weeks, or peginterferon beta-1a 125 μg every 4 weeks. At the end of Treatment Year 1, participants in the placebo group were re-randomized to receive peginterferon beta-1a treatment so that during treatment Year 2 (Weeks 48 to Week 96) all participants received peginterferon beta-1a 125 μg every 2 or every 4 weeks. Per protocol, all primary and secondary endpoints pertain to Year 1 data.
Key Inclusion Criteria:
Key Exclusion Criteria:
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Bogota, Cundinamarca, Colombia
Ostrava - Vitkovice, 70200, Czechia
Ostrava-Poruba, 70300, Czechia
Aquas Calientes, 20127, Mexico
Monterrey, Nuevo Leon, 64710, Mexico
Tijuana, Baja California, 22320, Mexico