FDA Accepts Replimune's Resubmitted BLA for Advanced Melanoma
FDA has accepted for review Replimune's BLA resubmission that is seeking accelerated approval of RP1 (vusolimogene oderparepvec) in combination with nivolumab for treating advanced melanoma, the company announced Friday. The agency classified the filing as a Class 1 resubmission and set a review action target date of 8/2. The company was also told to expect an advisory committee meeting in late July to discuss the application.
The resubmission follows FDA's April complete response letter rejecting the application, which is supported by data from the Phase 2 IGNYTE trial evaluating RP1 in combination with nivolumab in patients with advanced melanoma whose disease had progressed after prior anti-PD-1 therapy. The agency declined to approve RP1 despite clinical trial results showing tumor shrinkage or disappearance in roughly one-third of patients. The decision, together with several other high-profile regulatory setbacks issued this spring, drew criticism from industry groups and investors, who argued the agency had become less predictable under former FDA commissioner Marty Makary and the Trump administration. (see earlier story).
The agency reportedly had previously warned Replimune that its single-arm trial design could jeopardize approval. Still, the decision drew heightened scrutiny because it occurred amid internal upheaval at FDA during Makary’s tenure. Makary publicly defended the rejection and accused Replimune of engaging in “corporate spin” after criticism emerged following the decision.
RP1 is a genetically engineered virus designed to destroy tumor cells and stimulate immune activity alongside the immunotherapy drug Opdivo.