Available datapackage for study 'An Extension Study to Assess the Long-Term Safety, Tolerability, Pharmacokinetics, and Effect on Disease Progression of BIIB078 Administered to Previously Treated Adults With C9ORF72-Associated Amyotrophic Lateral Sclerosis'

The primary objective is to evaluate the long-term safety and tolerability of BIIB078 in participants with chromosome 9 open reading frame 72-amyotrophic lateral sclerosis (C9ORF72-ALS).The secondary objective is to evaluate the pharmacokinectic (PK) of BIIB078 in participants with C9ORF72-ALS.