| Home > Publications database > Noncanonical and mortality-defining toxicities of CAR T cell therapy. |
| Journal Article (Review Article) | DKFZ-2025-01436 |
; ; ;
2025
Springer Nature
[New York, NY]
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Please use a persistent id in citations: doi:10.1038/s41591-025-03813-5
Abstract: Chimeric antigen receptor (CAR) T cell therapy is associated with a unique spectrum of toxicities that drive morbidity, mortality and patient quality of life. Previous efforts yielded consensus grading systems for the prototypical immunotoxicities-namely, cytokine-release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS). These grading systems set the stage for severity-based and standardized treatment protocols that have contributed to a reduction in the acute toxicity burden of CAR T cell therapy and have enabled outpatient administration. However, understanding of CAR T cell therapy has since grown to encompass new targets, new diseases and broader patient populations-including long-term survivors. As side effects are better defined and novel toxicities emerge, there is a need to understand their mechanisms and standardize reporting to improve clinical management. Here we review the current state of knowledge for mortality-defining and rare toxicities of CAR T cell therapies, beyond CRS and ICANS. We discuss mechanisms, including on-target injury, cytokine-associated inflammation and dysregulated recovery, and how these mechanisms affect the timing and management of toxicities. Finally, we define key unmet needs and delineate future priorities and research directions.
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