Three-year analysis of adult patients with relapsed or refractory B-cell acute lymphoblastic leukemia treated with brexucabtagene autoleucel in ZUMA-3

Bijal D Shah, Ryan D Cassaday, Jae H Park, Roch Houot, Aaron C Logan, Nicolas Boissel, Thibaut Leguay, Michael R Bishop, Max S Topp, Kristen M O'Dwyer, Dimitrios Tzachanis, Martha L Arellano, Yi Lin, Maria R Baer, Gary J Schiller, Marion Subklewe, Mehrdad Abedi, Monique C Minnema, William G Wierda, Daniel J DeAngeloPatrick Stiff, Deepa Jeyakumar, Daqin Mao, Sabina Adhikary, Lang Zhou, Tsveta Hadjivassileva, Rita Damico Khalid, Armin Ghobadi, Olalekan O Oluwole

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Abstract

Brexucabtagene autoleucel (brexu-cel) is an autologous anti-CD19 CAR T-cell therapy approved in the US to treat adults aged ≥18 years (≥26 years in the EU) with relapsed/refractory (R/R) B-cell acute lymphoblastic leukemia (B-ALL). Brexu-cel showed an overall complete remission (CR)/CR with incomplete hematologic recovery (CRi) rate of 73% (CR rate 60%) and median overall survival (OS) of 25.4 months in 78 patients with R/R B-ALL after 2 years in ZUMA-3. Here, we report updated outcomes after >3 years median follow-up. As of July 23, 2022, median follow-up in all patients (N = 78) was 41.6 months. Median OS (95% CI) was 25.6 months (1.2-47.0; N = 78) and was 38.9 months (25.4–not estimable) for responders (n = 58), with 9 patients in ongoing remission without subsequent therapies. Five deaths (none deemed brexu-cel–related) occurred since prior data cut. Benefits from brexu-cel were maintained regardless of age, prior therapies, and subsequent allogeneic stem cell transplantation (alloSCT). Subsequent alloSCT was not associated with survival benefit among responders versus responders without subsequent alloSCT. No secondary T-cell malignancies were reported in ZUMA-3 with long-term follow-up. (Figure presented.)

Original languageEnglish
Pages (from-to)1058–1068
Number of pages11
JournalLeukemia
Volume39
Issue number5
Early online date19 Mar 2025
DOIs
Publication statusPublished - 2025

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