Second primary malignancies after CAR T-cell therapy: A systematic review and meta-analysis of 5,517 lymphoma and myeloma patients Review


Authors: Tix, T.; Alhomoud, M.; Shouval, R.; Scheffer Cliff, E. R.; Perales, M. A.; Cordas dos Santos, D. M.; Rejeski, K.
Review Title: Second primary malignancies after CAR T-cell therapy: A systematic review and meta-analysis of 5,517 lymphoma and myeloma patients
Abstract: PURPOSE: Chimeric antigen receptor (CAR) T-cell therapy is a potent immunotherapy for hematologic malignancies, but patients can develop long-term adverse events, including second primary malignancies (SPM) that impact morbidity and mortality. To delineate the frequency and subtypes of SPMs following CAR-T in lymphoma and myeloma, we performed a systematic review and meta-analysis. EXPERIMENTAL DESIGN: A literature search was conducted in the MEDLINE, Embase, and Cochrane CENTRAL databases. Following the extraction of SPM cases and assignment of malignant origin, we analyzed SPM point estimates using random effects models. RESULTS: We identified 326 SPMs across 5,517 patients from 18 clinical trials and 7 real-world studies. With a median follow-up of 21.7 months, the overall SPM point estimate was 6.0% (95% confidence interval, 4.8%-7.4%). SPM estimates were associated with treatment setting (clinical trials > real-world studies), duration of follow-up, and number of prior treatment lines, which were each confirmed as independent study-level risk factors of SPM in a meta-regression model. A subgroup meta-analysis of the four trials that randomized CAR-T versus standard-of-care revealed a similar risk of SPM with either treatment strategy (P = 0.92). In a distribution analysis of SPM subtypes, hematologic malignancies were the most common entity (37%), followed by solid tumors (27%) and non-melanoma skin cancers (16%). T-cell malignancies represented a small minority of events (1.5%). We noted disease- and product-specific variations in SPM distribution. CONCLUSIONS: These data raise awareness of SPM as a clinically relevant long-term adverse event in patients receiving CAR T-cell therapy. However, our findings do not indicate that SPM frequency is higher with CAR-T versus previous standard-of-care strategies. ©2024 American Association for Cancer Research.
Keywords: multiple myeloma; immunology; lymphoma; chimeric antigen receptor; neoplasms, second primary; epidemiology; therapy; meta analysis; adoptive immunotherapy; immunotherapy, adoptive; etiology; adverse event; procedures; humans; human; receptors, chimeric antigen; second primary neoplasm
Journal Title: Clinical Cancer Research
Volume: 30
Issue: 20
ISSN: 1078-0432
Publisher: American Association for Cancer Research  
Date Published: 2024-10-15
Start Page: 4690
End Page: 4700
Language: English
DOI: 10.1158/1078-0432.Ccr-24-1798
PUBMED: 39256908
PROVIDER: scopus
DOI/URL:
Notes: Article -- MSK Cancer Center Support Grant (P30 CA008748) acknowledged in PubMed and PDF -- MSK corresponding author is Kai Rejeski -- Source: Scopus
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MSK Authors
  1. Miguel-Angel Perales
    942 Perales
  2. Roni Shouval
    172 Shouval
  3. Kai Dannebom Rejeski
    35 Rejeski