Denali Therapeutics has sold a rare pediatric disease priority review voucher, a regulatory fast-pass that could speed approval of its investigational Duchenne muscular dystrophy gene therapy. The move underscores Denali's push to bring the treatment to market quickly in a competitive landscape.
The voucher, obtained through a previous FDA designation, allows the holder to reduce a standard new drug application review from 10 months to 6 months. Denali's gene therapy, still in early-stage trials, aims to deliver a functional version of the dystrophin gene to patients with the fatal muscle-wasting disease.
Regulatory pathway specifics remain unclear, as the therapy has not yet advanced to pivotal studies. The FDA has not set a PDUFA date. Denali has not disclosed whether it will file for accelerated approval or seek a traditional green light.
For Denali, the voucher sale provides non-dilutive capital—though the company did not disclose the buyer or price. The Duchenne gene therapy field is crowded: Sarepta's Elevidys already holds accelerated approval, and Pfizer's late-stage candidate is under FDA review.
Patient access to Duchenne gene therapies remains a hurdle due to high costs and limited manufacturing capacity. Some clinical experts caution that early-stage data must show durable benefit before the voucher's value is realized.