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Authors | Caron A. Jacobson, Julio C. Chavez, Alison R. Sehgal, Basem M. William, Javier Munoz, Gilles A. Salles, Carla Casulo, Pashna N. Munshi, David G. Maloney, Sven De Vos, Ran Reshef, Lori A. Leslie, Ibrahim Yakoub-Agha, Olalekan O. Oluwole, Henry C. Fung, Vicki Plaks, Yin Yang, Jennifer Lee, Mauro P. Avanzi, Sattva Swarup Neelapu | ||||||||||||
Title | Interim analysis of ZUMA-5: A phase II study of axicabtagene ciloleucel (axi-cel) in patients (pts) with relapsed/refractory indolent non-Hodgkin lymphoma (R/R iNHL). | ||||||||||||
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URL | https://ascopubs.org/doi/abs/10.1200/JCO.2020.38.15_suppl.8008 | ||||||||||||
Abstract Text | Background: Advanced stage iNHL, including follicular lymphoma (FL) and marginal zone lymphoma (MZL), is considered incurable as most pts experience multiple relapses (Wang, et al. Ther Adv Hematol. 2017), highlighting a need for novel therapies. Here, we present interim results from ZUMA-5, a Phase 2, multicenter study of axi-cel, an autologous anti-CD19 chimeric antigen receptor (CAR) T cell therapy, in pts with R/R iNHL. Methods: Adults with R/R FL (Grades 1-3a) or MZL (nodal or extranodal) after ≥ 2 lines of therapy (including an anti-CD20 monoclonal antibody [mAb] with an alkylating agent), and an ECOG of 0 – 1 were eligible. Pts were leukapheresed and received conditioning chemotherapy followed by axi-cel infusion at 2 × 106 CAR T cells/kg. The primary endpoint was objective response rate (ORR) by central review (Cheson, et al. J Clin Oncol. 2014). Secondary endpoints included duration of response (DOR), progression-free survival (PFS), overall survival (OS), safety, and blood levels of cytokines and CAR T cells. Results: As of 8/20/19, 94 pts (80 FL; 14 MZL) received axi-cel with a median follow-up of 11.5 mo (range, 4.2 – 24.9). Median age was 63 y (range, 34 – 79), 47% of pts were male, 52% had stage IV disease, 51% had ≥ 3 FLIPI, and 59% had high tumor bulk (GELF). Pts had a median 3 prior lines of therapy, 66% progressed < 2 y after initial anti-CD20 mAb-containing therapy (POD24), and 73% were refractory to the last prior treatment. Of 87 pts evaluable for efficacy, ORR was 94% (79% complete response [CR] rate). Pts with FL (n = 80) had an ORR of 95% (80% CR rate). Pts with MZL (n = 7) had an ORR of 86% (71% CR rate). Overall, 68% of pts had ongoing responses as of the data cutoff. Updated data, including DOR, PFS, and OS with longer follow-up, will be included in the presentation. Of 94 pts evaluable for safety, 83% experienced Grade ≥ 3 adverse events (AEs), most commonly neutropenia (33%) and anemia (28%). Grade ≥ 3 cytokine release syndrome (CRS; per Lee et al, Blood 2014) and neurologic events (NEs; per CTCAE v4.03) occurred in 11% and 19% of pts, respectively. Median times to onset of CRS and NEs were 4 and 7 d, with median durations of 6 and 14.5 d. There were 2 Grade 5 AEs: multisystem organ failure in the context of CRS (related to axi-cel) and aortic dissection (unrelated to axi-cel). Median peak and AUC0-28 CAR T cell levels were 44 cells/µL and 490 cells/µL × d, respectively. Conclusions: Axi-cel demonstrated significant and durable clinical benefit, with high rates of ORR and CR, and a manageable safety profile in pts with R/R iNHL. Clinical trial information: NCT03105336. |
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