ADC Therapeutics Reports 89.8% Response Rate in ZYNLONTA and Glofitamab Phase 1b Trial for r/r DLBCL
ADC Therapeutics SA has announced updated results from the ongoing LOTIS-7 Phase 1b open-label clinical trial evaluating the safety and efficacy of ZYNLONTA® in combination with the bispecific antibody glofitamab (COLUMVI®) in patients with relapsed or refractory diffuse large B-cell lymphoma (r/r DLBCL). As of the November 17, 2025, data cutoff, 49 patients were efficacy evaluable with a minimum of six months of follow-up. The best overall response rate $(ORR)$ was 89.8%, with a complete response $(CR)$ rate of 77.6%. The combination therapy showed a manageable safety profile, with grade 5 adverse events occurring in 4.1% of patients and cytokine release syndrome $(CRS)$ reported in 36.7% of patients across dose levels. These updated data have already been presented by the company.
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