Development of BIIB105, an investigational antisense oligonucleotide for amyotrophic lateral sclerosis (ALS), will be discontinued based on data from the Phase 1/2 ALSpire study Biogen and Ionis continue their long-standing commitment to developing therapies for ALS given the devastating impact of this progressive, fatal neurodegenerative condition CARLSBAD, Calif. and CAMBRIDGE, Mass., May 16, 2024 /PRNewswire/ -- Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) and Biogen Inc. (Nasdaq: BIIB) announced the decis ...