Regeneron Pharmaceuticals, Inc. announced that the U.S. Food and Drug Administration (FDA) has accepted for review the resubmission of the Biologics License Application (BLA) for odronextamab in relapsed/refractory (R/R) follicular lymphoma (FL) after two or more lines of systemic therapy. The target action date for the FDA decision is July 30, 2025 .
Acceptance of the BLA resubmission follows the achievement of an FDA-mandated enrollment target for the Phase 3 confirmatory trial in R/R FL ( OLYMPIA -1). This was the sole approvability issue identified by the FDA in the complete response letter associated with the previous submission. The BLA resubmission is supported by data from the Phase 1 and pivotal Phase 2 trials (ELM-1 and ELM-2), which demonstrated an overall response rate of 80% (n=103), with 74% (n=95) achieving a complete response. Serious adverse events occurred in 67% of patients; those occurring in ≥10% of patients included cytokine release syndrome, COVID-19 and pneumonia.
Odronextamab is approved as Ordspono in the European Union for the treatment of R/R FL or diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy although its safety and efficacy have not been fully evaluated by any other regulatory authority.