Faculty, Staff and Student Publications

Publication Date

8-15-2025

Journal

Journal of Clinical Investigation

DOI

10.1172/JCI181893

PMID

40536814

PMCID

PMC12352890

PubMedCentral® Posted Date

8-15-2025

PubMedCentral® Full Text Version

Post-print

Abstract

Background: Axicabtagene ciloleucel (axi-cel), anti-CD19 chimeric antigen receptor (CAR) T cell therapy, demonstrated remarkable efficacy with manageable toxicity in relapsed/refractory indolent B cell lymphomas in the ZUMA-5 trial.

Methods:Here, we report associations of product attributes, serum biomarkers, clinical features, and tumor characteristics with outcome in 124 patients with follicular lymphoma (FL).

Results: In univariate and multivariate analyses, pretreatment inflammatory markers, including TNF-α and IL-12p40, as well as total metabolic tumor volume (TMTV), associated with disease progression. Conversely, T-naive–like product phenotype associated with improved outcome, particularly in patients with high TMTV. These covariates improved risk stratification when combined with the FL International Prognostic Index. Postinfusion, CAR T cell expansion associated with improved outcome, while serum inflammatory and immunomodulatory markers, including TNF-α, associated with disease progression and occurrence of high-grade cytokine release syndrome or neurologic events, presenting targets to improve the therapeutic index of axi-cel in FL. Tumor gene expression profiling revealed that both type I and II IFN signaling associated with disease progression and higher expression of T cell exhaustion markers, including TIM3 and LAG3. Pre- or posttreatment CD19 expression on tumor was not associated with outcome.

Conclusion:These findings offer insights into mechanisms of resistance and toxicity, risk stratification, and strategies for development of next generation CAR-T approaches.

Keywords

Adult, Aged, Female, Humans, Male, Middle Aged, Antigens, CD19, Immunotherapy, Adoptive, Lymphoma, Follicular, Biological Products, Hematology, Oncology, Cytokines, Lymphomas, T cells

Comments

Trial Registration: ClinicalTrials.gov NCT03105336.

Funding: Kite, a Gilead Company.

Published Open-Access

yes

jci-135-181893-g159.jpg (137 kB)
Graphical Abstract

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