Alnylam Files sNDA for Vutrisiran

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FDA has accepted for review an Alnylam Pharmaceuticals supplemental NDA for vutrisiran, an investigational RNAi therapeutic in development for treating transthyretin amyloidosis (ATTR) with cardiomyopathy (ATTR-CM). The submission included a priority review voucher and the agency has set a user fee review action date of 3/23/2025.

Vutrisiran is currently approved for treating polyneuropathy of hereditary transthyretin-mediated amyloidosis (hATTR-PN) in adults. “By rapidly knocking down both mutant and wild‑type transthyretin (TTR), vutrisiran addresses the underlying cause of transthyretin amyloidosis (ATTR),” the company says. If approved, vutrisiran would become the first therapeutic approved to treat both hATTR-PN and ATTR-CM.

The submission was based on data from HELIOS-B, a placebo-controlled multicenter global Phase 3 study in patients with ATTR-CM. “The study demonstrated favorable effects of vutrisiran on outcomes of death and cardiovascular events, functional capacity and quality of life in patients with ATTR-CM,” the company says.

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