Accelerated Approval: Nippon Shinyaku’s Viltepso Fails DMD Confirmatory Trial, Raising Questions

The Duchenne muscular dystrophy treatment missed its primary endpoint of time to stand from supine in the RACER53 study, raising more questions about using dystrophin changes to support accelerated approval and the ability of functional endpoints to detect clinical change.

Trail blazes
Viltepso followed the accelerated approval trail blazed by Exondys 51, but reported confirmatory trial results faster. • Source: Shutterstock

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