Here's Why Replimune Stock Skyrockets Nearly 131% in 3 Months

Core Insights - Replimune Group's shares have increased by 131.1% over the last three months due to positive regulatory developments [1] - The FDA has accepted the resubmission of the biologics license application (BLA) for Replimune's lead candidate RP1 in combination with Bristol Myers' Opdivo for advanced melanoma, with a target action date set for April 10, 2026 [1][5] Regulatory Developments - The BLA resubmission follows a complete response letter (CRL) issued in July 2025, which raised concerns about data heterogeneity in the IGNYTE study population [2] - The FDA indicated that the IGNYTE study was not considered adequate for providing substantial evidence of effectiveness [2] - Replimune has engaged with the FDA to address the feedback from the CRL, and the FDA confirmed that the resubmission adequately addresses the previous concerns [3] Clinical Data - The RP1/Opdivo combination achieved a 44% response rate and an 11.9-month median response duration in patients with acral melanoma from the IGNYTE study [5][9] - Replimune is continuing a larger phase III study evaluating the RP1/Opdivo combination against the physician's choice of treatment for melanoma patients who have progressed on anti-PD1 and anti-CTLA-4 therapies [9] Market Performance - Replimune's shares have declined by 19.6% over the past year, contrasting with the industry's growth of 20.2% [4] - The acceptance of the resubmitted BLA has alleviated investor concerns regarding the RP1/Opdivo combination, leading to increased visibility and confidence in the candidate's approval path [6] Additional Pipeline Information - RP1 is also being evaluated as a monotherapy for solid organ transplant recipients with skin cancers [12] - Replimune has a second oncolytic immunotherapy candidate, RP2, currently in mid-stage to large-stage studies for metastatic uveal melanoma and hepatocellular carcinoma [12]