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FDA Accepts Replimune’s Resubmitted RP1 Melanoma Filing, Sets April 2026 Decision

The review moves RP1 plus nivolumab into formal evaluation after a June rejection.

Overview

  • The FDA accepted Replimune’s resubmitted BLA for RP1 given with nivolumab and set April 10, 2026 as the decision date under a Class II review.
  • Acceptance signals the filing is complete for review but does not constitute approval.
  • Replimune shares roughly doubled on the news, with the stock trading near $9 by late Monday.
  • Wedbush and Leerink upgraded the stock following the announcement, lifting price targets to $18 and $13, respectively.
  • The application seeks use in advanced melanoma for patients who progressed on anti–PD-1 therapy, using the RP1 and Opdivo combination.