With Biogen, Inc.’s tofersen now under review for a subgroup of ALS patients, the US Food and Drug Administration is once again faced with deciding whether biomarker data in a neurodegenerative disease with high unmet need justify accelerated approval in the face of a failed clinical endpoint study.
On 26 July, Biogen announced the FDA had accepted its application for tofersen, an antisense oligonucleotide, for treatment of superoxide...







