Biogen gene therapy for rare eye disease falls short in key clinical trial May 14, 2021 Auto Bot Biogen, BioPharma, biopharma nl, Cambridge, Clinical Trials, gene therapy, Massachusetts, Pharma, Rare diseases 0 A Biogen gene therapy for a rare, inherited eye disorder that leads to blindness has failed a key clinical trial. The preliminary results are the latest blow to the company’s efforts to expand its scope to gene therapies.