Large clones of clonal hematopoiesis affect outcome in mantle cell lymphoma: results from the FIL MCL0208 clinical trial
- PMID: 39808795
- PMCID: PMC12008534
- DOI: 10.1182/bloodadvances.2024014948
Large clones of clonal hematopoiesis affect outcome in mantle cell lymphoma: results from the FIL MCL0208 clinical trial
Abstract
Although recent evidence suggests that myeloid clonal hematopoiesis (M-CH) may influence lymphoma clinical outcome, its impact in mantle cell lymphoma (MCL) remains unclear. Here, we report a comprehensive next-generation sequencing-based analysis of the M-CH mutational landscape at baseline and follow-up in patients enrolled in the Fondazione Italiana Linfomi MCL0208 phase 3 trial, evaluating lenalidomide maintenance vs observation after chemoimmunotherapy and autologous stem cell transplantation (ASCT) in untreated young patients with MCL. Overall, 254 of 300 (85%) enrolled patients (median age, 57 years [range, 32-66]) had a baseline sample available for CH analysis. Using stringent criteria, at least 1 mutation involving M-CH candidate genes was described in 34 patients (13%), with DNMT3A being the most frequently mutated gene (54%). After a median follow-up of 7 years, the presence of large CH clones (variant allele frequency of ≥10%) predicted worse progression-free survival (hazard ratio [HR], 2.93; 95% confidence interval [CI] 1.36-6.31; P = .006) and overall survival (HR, 3.02 [1.21-7.55]; P = .018) compared with patients with CH. Importantly, the competing risks analysis demonstrates that the worse clinical outcome associated with M-CH large clones is linked to MCL progression (P < .05). Moreover, large M-CH clones showed longer time to hematological recovery after ASCT than the remaining cohort (P = .026). In conclusion, we showed for the first time that large CH clones might associate with unfavorable clinical impact in patients with MCL. This trial was registered at www.clinicaltrialsregister.eu as EudraCT (2009-012807-25) and www.ClinicalTrials.gov as #NCT02354313.
© 2025 American Society of Hematology. Published by Elsevier Inc. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0), permitting only noncommercial, nonderivative use with attribution. All other rights reserved.
Conflict of interest statement
Conflict-of-interest disclosure: V.R.Z. serves on the advisory board of Kite/Gilead and Takeda; is a consultant for Roche; received research funding from Kite/Gilead; is a member of the speakers bureau for Janssen, Lilly, and Takeda; and received travel support from BeiGene, Janssen, Roche, and Takeda. M.G.d.S. received research grants from Gilead Sciences and AstraZeneca; serves on the advisory board of Janssen, Roche, Gilead Sciences, Lilly, and Takeda; received institutional payments from Janssen and AbbVie; and received travel support from Roche, AbbVie, Janssen, Gilead, and Takeda. M.L. reports consulting fees from AstraZeneca, BeiGene, Janssen, and Lilly; reports honoraria for lectures, presentations, speakers bureaus, manuscript writing, or educational events from AstraZeneca, BeiGene, Janssen, and Lilly; and reports participation on a data safety monitoring board with Acerta. S.F. is a consultant for Janssen, EUSA Pharma, AbbVie, and Sandoz; serves on the advisory board of Janssen, EUSA Pharma, Recordati, Incyte, Roche, Astra Zeneca, and Italfarmaco; received speaker’s honoraria from Janssen, EUSA Pharma, Recordati, Lilly, BeiGene, Gilead, and Gentili; and received research funding from Gilead, BeiGene, and Morphosys. E.R. owns shares in enGenome s.r.l. The remaining authors declare no competing financial interests.
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