Trial of the Safety and Efficacy of Epcoritamab in Japanese Subjects With Relapsed or Refractory (R/R) B-Cell Non-Hodgkin Lymphoma (R/R B-NHL)

Summary

The trial is an open-label, multi-center safety and preliminary efficacy trial of epcoritamab (EPKINLY™) in Japanese participants with relapsed, progressive or refractory B-cell lymphomas and Japanese participants with B-cell lymphomas that have achieved partial response (PR) or complete response (CR) following prior standard of care (SOC). The trial consists of two parts: Part 1, dose escalation (phase 1), and Part 2, expansion (phase 2). The purpose of the dose-escalation part of the trial is to determine the maximum tolerated dose (MTD) and the recommended Phase-2 dose (RP2D), as well as to establish the safety profile of epcoritamab in Japanese participants with relapsed, progressive or refractory B-cell lymphoma and Japanese participants with B-cell lymphomas that have achieved PR or CR. In the expansion part, additional participants will be treated with epcoritamab, at the RP2D and the purpose is to further explore and determine the safety and efficacy of epcoritamab. Part 2 of the trial will be initiated once the RP2D has been determined in Part 1. In Part 2, epcoritamab is investigated as a monotherapy and in combination with other SOC agents.

Timeline

Start

2020-08-20

Primary completion

2027-09

Completion

2027-09

Publications

• Sinnollareddy M, Sanghavi K, Gibiansky L, Li T, Putnins M, Mohamed MF, Patah P, Favaro E, Gupta M, Parikh A, Xu S. Exposure-Response Analyses to Inform the Optimal Epcoritamab Monotherapy Dosing Regimen in Relapsed or Refractory Follicular Lymphoma. Clin Pharmacokinet. 2026 Aug 1. doi: 10.1007/s40262-026-01661-1. Online ahead of print.
• Li T, Tredennick A, Polhamus D, Putnins M, Liu S, Sanghavi K, Thalhauser CJ, Parikh A, Noorani B, Mohamed MF, Le Gallo C, Elliott B, Gupta M, Xu S. Epcoritamab Step-Up Dosing Regimen Selection and Optimization Using Repeated Time-to-Event Modeling for Cytokine Release Syndrome Risk Mitigation. Clin Pharmacol Ther. 2026 Aug;120(2):542-551. doi: 10.1002/cpt.70362. Epub 2026 Jul 7.
• Izutsu K, Akahane D, Toubai T, Saito T, Mishima Y, Fujisaki T, Nishikori M, Kumode T, Suehiro Y, Ishitsuka K, Conlon R, Takahashi A, D'Angelo Mansson B, Favaro E, Fukuhara N. Subcutaneous epcoritamab monotherapy in Japanese patients with relapsed or refractory follicular lymphoma: primary results of the EPCORE NHL-3 trial. Leuk Lymphoma. 2025 Oct;66(10):1913-1921. doi: 10.1080/10428194.2025.2525983. Epub 2025 Jul 9.

Drugs

Indications