CHMP positive for conditional marketing authorization of epcoritamab (Tepkinly) for the treatment of adult patients with relapsed or refractory (R/R) follicular lymphoma (FL).- AbbVie

"Patients with follicular lymphoma are likely to face disease recurrence and shorter durability of response with each subsequent line of treatment. This positive opinion recognizes the unmet need in the European Union for individuals with relapsed or refractory follicular lymphoma, following failure of other therapies," said Mariana Cota Stirner, M.D., Ph.D., vice president, therapeutic area head for hematology, AbbVie.

FL is typically an indolent (or slow-growing) form of non-Hodgkin's lymphoma (NHL) that arises from B-lymphocytes and is the second most common form of NHL accounting for 20-30% of all cases. In 2023, there were an estimated 13,000 cases of FL in Western Europe. FL is considered incurable with current standard of care therapies.

The CHMP opinion is supported by overall and complete response data from the Phase 1/II EPCORE NHL-1 clinical trial in 128 patients with R/R FL treated with epcoritamab after two or more lines of prior therapy. The study included patients who were refractory to both anti-CD20 monoclonal antibody therapy and an alkylating agent, patients who were refractory to last prior treatment, and patients whose disease progressed within two years of first systemic therapy. The safety profile of epcoritamab in the pivotal cohort was similar to reports of epcoritamab monotherapy in the pivotal EPCORE NHL-1 diffuse large B-cell lymphoma (DLBCL) cohort.

An additional cohort of 86 patients evaluated a 3-step-up dosing (SUD) schedule to reduce the incidence and severity of cytokine release syndrome (CRS), which is an associated adverse effect from immune-engaging cancer treatments. For the first full dose of this 3-step regimen, mandatory hospitalization was not required. In this cohort, the incidence of CRS was 49% (42 of 86 patients; 9% were grade 2). There were no grade 3 or higher CRS events. The data from this optimization cohort of the EPCORE NHL-1 study were recently published in the Lancet Haematology.

"Each year, thousands of people in Europe are diagnosed with follicular lymphoma, and it's an upsetting reality that many of them will experience relapse and refractory disease," said Catherine Thieblemont, M.D., Ph.D., head of the hemato-oncology department, Paris University, Hôpital Saint-Louis Assistance-Publique-Hopitaux de Paris (APHP) in Paris. "Patients deserve new treatment options, and this positive opinion is the first step to bringing epcoritamab to more patients who need it.

See- "Epcoritamab monotherapy in patients with relapsed or refractory follicular lymphoma (EPCORE NHL-1): a phase 2 cohort of a single-arm, multicentre study"- Kim M Linton MBChB, PhD , Umberto Vitolo MD , Wojciech Jurczak MD , Pieternella J Lugtenburg MD , Emmanuel Gyan MD , Anna Sureda MD , Jacob Haaber Christensen MD , et.al. https://doi.org/10.1016/S2352-3026(24)00166-2. (The Lancet Haematology).