Arrowhead receives $100 million milestone from Sarepta for ARO-DM1 study

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Arrowhead Pharmaceuticals Earns $100 Million Milestone from Sarepta Therapeutics

July 28, 2025 7:30 AM EDT

- Milestone earned upon reaching first enrollment target in a Phase 1/2 study of ARO-DM1 for the treatment of type 1 myotonic dystrophy

PASADENA, Calif.--(BUSINESS WIRE)-- Arrowhead Pharmaceuticals, Inc. (NASDAQ: ARWR) today announced that it has earned a $100 million milestone payment from Sarepta Therapeutics (NASDAQ: SRPT). The milestone was triggered when Arrowhead reached the first of two prespecified enrollment targets and subsequent authorization to dose escalate in a Phase 1/2 clinical study of ARO-DM1, an investigational RNA interference (RNAi) therapeutic for the treatment of type 1 myotonic... More