Replimune BLA Resubmission for Melanoma Therapy
FDA has accepted for review a Replimune BLA resubmission for RP1 (vusolimogene oderparepvec) in combination with nivolumab for treating advanced melanoma in patients whose disease has progressed on an anti–PD-1-based regimen. The agency set a user fee review action target date of 4/10.
The company says the filing includes additional information, data, and analyses to address FDA’s concerns that were raised in an July complete response letter. The letter took issue with Replimune’s supporting clinical trial data, trial design, and the heterogeneous patient population in the Phase 1-2 IGNYTE trial. Issues were also raised about the design of the confirmatory Phase 3 IGNYTE-3 trial, specifically questioning the ability to distinguish the individual benefits of RP1 and nivolumab, according to the company.
RP1 is Replimune’s lead oncolytic immunotherapy candidate. The therapy is based on a genetically modified herpes simplex virus engineered to enhance tumor cell destruction and stimulate a systemic anti-tumor immune response, the company says. It includes genetic modifications for a fusogenic protein and GM-CSF to boost both direct tumor killing and immune activation, it says.
If approved, RP1 in combination with nivolumab could represent a new treatment option for patients with advanced melanoma who have limited therapeutic alternatives following PD-1 inhibitor therapy.