Biogen Releases Letter to ALS Community
Yesterday, Biogen released a letter to the ALS community regarding its experimental therapy, tofersen (formerly known as BIIB067), an antisense oligonucleotide being studied for the potential treatment of amyotrophic lateral sclerosis (ALS) in adults with a confirmed superoxide dismutase 1 (SOD1) genetic mutation, which is a subtype of familial ALS that makes up 2 percent . . .