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Epcoritamab plus GemOx in transplant-ineligible relapsed/refractory DLBCL: results from the EPCORE NHL-2 trial

JD. Brody, J. Jørgensen, D. Belada, R. Costello, M. Trněný, U. Vitolo, DJ. Lewis, YH. Karimi, A. Sureda, M. André, BE. Wahlin, PJ. Lugtenburg, T. Jiang, K. Karagoz, AJ. Steele, A. Abbas, L. Wang, M. Risum, R. Cordoba

. 2025 ; 145 (15) : 1621-1631. [pub] 20250410

Language English Country United States

Document type Journal Article, Clinical Trial, Phase II, Multicenter Study, Clinical Trial, Phase I

Patients with relapsed or refractory (R/R) diffuse large B-cell lymphoma (DLBCL) have poor outcomes (complete response [CR] rates with standard salvage therapy gemcitabine plus oxaliplatin [GemOx], ∼30%; median overall survival [OS], 10 to 13 months). Patients with refractory disease fare worse (CR rate with salvage therapy, 7%; median OS, 6 months). Epcoritamab, a CD3×CD20 bispecific antibody approved for R/R DLBCL after ≥2 therapy lines, has shown promising safety and efficacy in various combinations. We report results from the phase 1b/2 EPCORE NHL-2 trial evaluating epcoritamab plus GemOx in autologous stem cell transplant (ASCT)-ineligible R/R DLBCL. Patients received 48 mg subcutaneous epcoritamab after 2 step-up doses until progression or unacceptable toxicity; GemOx was given once every 2 weeks for 8 doses. The primary end point was overall response rate (ORR). As of 15 December 2023, 103 patients were enrolled (median follow-up, 13.2 months; median age, 72 years). Patients had challenging-to-treat disease: ≥2 prior therapy lines, 62%; prior chimeric antigen receptor T-cell therapy, 28%; primary refractory disease, 52%; refractory to last therapy, 70%. ORR and CR rate were 85% and 61%, respectively. Median duration of CR and OS were 23.6 and 21.6 months, respectively. Common treatment-emergent adverse events were cytopenias and cytokine release syndrome (CRS). CRS events had predictable timing, were primarily low grade (52% overall, 1% grade 3), and resolved without leading to discontinuation. Epcoritamab plus GemOx yielded deep, durable responses and favorable long-term outcomes in ASCT-ineligible R/R DLBCL. This trial was registered at www.clinicaltrials.gov as #NCT04663347.

1st Department of Medicine 1st Faculty of Medicine Charles University and General University Hospital Prague Czech Republic

4th Department of Internal Medicine Hematology University Hospital and Faculty of Medicine in Hradec Králové Hradec Králové Czech Republic

Biostatistics Genmab Plainsboro NJ

Clinical Hematology Department Institut Català d'Oncologia L'Hospitalet IDIBELL Universitat de Barcelona Barcelona Spain

Clinical Science Genmab Plainsboro NJ

Department of Haematology Aarhus University Hospital Aarhus Denmark

Department of Haematology Derriford Hospital University Hospitals Plymouth National Health Service Trust Plymouth United Kingdom

Department of Hematology Erasmus MC Cancer Institute University Medical Center Rotterdam The Netherlands

Department of Hematology Fundación Jiménez Diaz University Hospital Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz Madrid Spain

Department of Internal Medicine Icahn School of Medicine at Mount Sinai New York NY

Department of Medical Oncology Candiolo Cancer Institute FPO IRCCS Turin Italy

Division of Haematology Department of Medicine at Huddinge Karolinska Institutet Stockholm Sweden

Medical Genmab Copenhagen Denmark

Oncology Clinical Development AbbVie North Chicago IL

Service d'Hématologie Centre Hospitalier Universitaire Université Catholique de Louvain Namur Yvoir Belgium

Service d'Hematologie et Thérapie Cellulaire Assistance Publique Hôpitaux de Marseille Marseille France

Translational Data Science Genmab Plainsboro NJ

Translational Medicine Genmab Plainsboro NJ

University of Michigan Division of Hematology and Oncology Ann Arbor MI

References provided by Crossref.org

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