Odronextamab receives EMA filing acceptance for treatment of relapsed/refractory follicular lymphoma and diffuse large b-cell lymphoma

Regeneron Pharmaceuticals, Inc. announced on August 17, 2023 that the European Medicines Agency (EMA) has accepted for review the Marketing Authorization Application (MAA) for odronextamab to treat adult patients with relapsed/refractory (R/R) follicular lymphoma (FL) or R/R diffuse large B-cell lymphoma (DLBCL), who have progressed after at least two prior systemic therapies.

The EMA previously granted odronextamab Orphan Drug Designation for FL and DLBCL.

Odronextamab is an investigational CD20xCD3 bispecific antibody designed to bridge CD20 on cancer cells with CD3-expressing T cells to facilitate local T-cell activation and cancer-cell killing.

FL and DLBCL are the two most common subtypes of B-cell non-Hodgkin lymphoma (B-NHL). FL is a slow-growing subtype, with patients often relapsing within five years. DLBCL is an aggressive subtype, with up to 50% of high-risk patients experiencing progression after first-line treatment (e.g., relapsing or refractory to treatment). As these blood cancers progress, they become increasingly hard to treat, especially in the third-line setting and beyond, leaving patients with few treatment options.

The MAA is supported by data from a Phase 1 and pivotal Phase 2 trial (ELM-1 and ELM-2) investigating odronextamab in FL and DLBCL, which were last presented at the 64th American Society of Hematology Annual Meeting.

Regeneron is conducting a broad Phase 3 development program to further investigate odronextamab in earlier lines of therapy and additional B-NHLs, representing one of the largest clinical programs in lymphoma. Odronextamab is currently under clinical development, and its safety and efficacy have not been fully evaluated by any regulatory authority.

About the Odronextamab Trials
ELM-2 is an ongoing, open-label, multicenter Phase 2 trial investigating odronextamab in more than 500 patients across five independent disease-specific cohorts, including DLBCL, FL, mantle cell lymphoma, marginal zone lymphoma and other subtypes of B-NHL. The primary endpoint is objective response rate according to the Lugano Classification, and secondary endpoints include complete response, progression-free survival, overall survival, duration of response, disease control rate, safety and quality of life.

ELM-1 is an ongoing, open-label, multicenter Phase 1 trial to investigate the safety and tolerability of odronextamab in patients with CD20+ B-cell malignancies previously treated with CD20-directed antibody therapy.