お知らせ • Aug 20
Abbvie Receives Second Indication Approval from European Commission for Tepkinly® (Epcoritamab) for the Treatment of Adults with Relapsed/Refractory Follicular Lymphoma
AbbVie announced that the European Commission (EC) announced that the European Commission (EC) has granted conditional marketing authorization for TEPKINLY® (epcoritamab) as a monotherapy for the treatment of adult patients with relapsed or refractory (R/R) follicular lymphoma (FL) after two or more lines of prior therapy. TEPKINLY is the first and only subcutaneous T-cell engaging bispecific antibody approved to treat both R/R FL and R/R diffuse large B-cell lymphoma (DLBCL) in the European Union (EU), as well as the European Economic Area (EEA) countries (Iceland, Liechtenstein, Norway) and Northern Ireland. FL is typically a 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.2FL is considered incurable, and there is no standard of care treatment for third-line or later FL. Patients often relapse and with each relapse, the remission and time to next treatment is shorter. Over time, transformation to DLBCL, an aggressive form of NHL associated with poor survival outcomes, can occur in more than 25% of FL patients. The conditional marketing authorization is supported by data from Phase 1/2 EPCORE® NHL-1 clinical trial: an open-label, multi-cohort, multicenter, single-arm trial that evaluated TEPKINLY as monotherapy in patients with R/R FL after two or more lines of prior systemic therapy. The study included patients who were refractory to both anti-CD20 monoclonal antibody therapy and an alkylating agent (70% having double refractory disease), patients who were refractory to last prior treatment (82%), and patients whose disease progressed within two years of initiating any first systemic therapy (52%). The results published in the Lancet Haematology showed that patients treated with TEPKINLY (n=128) had an overall response rate (ORR) of 83% and a complete response (CR) rate of 63%. At a median follow-up of 16.2 months, the median duration of response was 21.4 months (13.7, NR). Duration of complete response (DOCR) was not reached. The study included a planned separate optimization cohort, which evaluated 86 patients with the recommended 3-step-up doses for cytokine release syndrome (CRS) mitigation. Hospitalization was not mandatory in the cycle 1 optimization cohort. With the optimized regimen, 40% of patients experienced Grade 1 CRS and 9% experienced Grade 2 (no Grade 3 or higher CRS were reported). No immune effector cell-associated neurotoxicity syndrome (ICANS) cases were reported in this cohort. The safety profile of epcoritamab in the pivotal cohort was similar to reports of epcoritamab monotherapy in the pivotal EPCORE NHL-1 DLBCL cohort.6 In the pooled safety population (n=382), the most common adverse reactions (= 20%) with TEPKINLY were CRS, injection site reactions, fatigue, viral infection, neutropenia, musculoskeletal pain, pyrexia, and diarrhea. The most frequent serious adverse reaction (=?10%) was CRS (34%). Fourteen patients (3.7%) experienced a fatal adverse reaction [pneumonia in 9 (2.4%) patients, viral infection in 4 (1.0%) patients, and ICANS in 1 (0.3%) patient]. EPCORE® NHL-1 is an open-label, multi-center safety and preliminary efficacy trial of epcoritamab that consists of three parts: a dose escalation part; an expansion part; and an optimization part. The trial was designed to evaluate subcutaneous epcoritamab in patients with relapsed, progressive or refractory CD20+ mature B-cell non-Hodgkin's lymphoma (B-NHL), including FL. In the expansion part, additional patients were enrolled to further explore the safety and efficacy of epcoritamab in three cohorts of patients with different types of relapsed/refractory B-NHLs who have limited therapeutic options. The optimization part evaluates the potential for alternative step-up dosing regimens to help minimize overall rates and severity of cytokine release syndrome (CRS). The primary endpoint of the expansion part was ORR as assessed by an IRC. Secondary efficacy endpoints included duration of response, complete response rate, duration of complete response, progression-free survival, and time to response as determined by the Lugano criteria. Overall survival, time to next therapy, and rate of minimal residual disease negativity were also evaluated as secondary efficacy endpoints. The primary endpoint of the optimization part was the rate of = Grade 2 CRS events and all grade CRS events from first dose of epcoritamab through 7 days following administration of the second full dose of epcoritamab. Epcoritamab is an IgG1-bispecific antibody created using Genmab's proprietary DuoBody® technology and administered subcutaneously. Genmab's DuoBody-CD3 technology is designed to direct cytotoxic T cells selectively to elicit an immune response toward target cell types. Epcoritamab is designed to simultaneously bind to CD3 on T cells and CD20 on B cells and induces T-cell-mediated killing of CD20+ cells. Epcoritamab (approved under the brand name EPKINLY® in the United States and TEPKINLY® in the European Union) has received regulatory approval in certain lymphoma indications in several countries. Epcoritamab is being co-developed by AbbVie and Genmab as part of the companies' oncology collaboration. The companies will share commercial responsibilities in the U.S. and Japan, with AbbVie responsible for further global commercialization. Both companies will pursue additional international regulatory approvals for the R/R FL indication and the R/R DLBCL indication.