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JAN 21 2027
UPCOMING · 114 DAYS TO PDUFA

Dyne Therapeutics — Z-Rostudirsen $DYN

for Exon 51 Duchenne muscular dystrophy

BLA · Priority Review

Accepted JUL 20 2026.

About

Duchenne muscular dystrophy is a severe muscle-wasting disease that typically begins in early childhood, rapidly progresses to loss of walking ability, and weakens muscles in the legs, pelvis, and arms. Z-Rostudirsen is designed to deliver a therapeutic agent that prompts muscle cells to skip over a specific flawed section of the dystrophin gene, called exon 51. This skipping may allow the production of a more functional dystrophin protein, which could potentially slow the progression of muscle degeneration in these patients.

Pivotal trial

FORZETTO Phase 3 recruiting NCT07608432

The purpose of the study is to assess the efficacy, safety, and tolerability of zeleciment rostudirsen (DYNE-251) administered intravenously (IV) every 4 weeks to ambulatory Duchenne muscular dystrophy (DMD) participants, 4 to 18 years of age, with dystrophin mutations amenable to exon 51 skipping.

Source: ClinicalTrials.gov