Autologous hematopoietic cell transplantation consolidation for first response is associated with longer survival among patients with nodal peripheral T-cell lymphoma

Transplantation and Cellular Therapy(2024)

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Abstract
Background Nodal peripheral T-cell lymphomas (PTCLs) are challenging subsets of non-Hodgkin lymphomas characterized by their heterogeneity and aggressive clinical behavior. Given the mixed outcomes reported in previous studies, the efficacy of autologous hematopoietic cell transplantation (auto-SCT) as a consolidation strategy following initial chemotherapy response remains uncertain. Objective This study aims to evaluate the impact of upfront auto-SCT consolidation on overall survival (OS) and event-free survival (EFS) among patients with nodal PTCL who achieved a complete or partial response to initial chemotherapy. Study Design A retrospective cohort study was conducted at Moffitt Cancer Center, involving 123 patients with nodal PTCL treated between February 2005 and February 2021. Patients were stratified into two groups based on whether they received auto-SCT as part of their initial treatment strategy. Kaplan-Meier method and Cox proportional hazard models were used for statistical analysis to compare OS and EFS between groups. Results Patients undergoing auto-SCT after first response demonstrated significantly longer median OS (12.3 vs. 4.3 years; P = .035) and EFS (6.2 vs. 2.2 years; P = .003) compared to those who did not. Multivariate analyses indicated that auto-SCT at first response and younger age at diagnosis were favorable prognostic factors. Conclusion The findings suggest that upfront auto-SCT consolidation can significantly improve long-term outcomes in patients with nodal PTCL, supporting the strategy of early auto-SCT consideration and referral following initial chemotherapy response. These results underscore the importance of integrating upfront auto-SCT into the treatment paradigm for nodal PTCL, emphasizing early referral to transplantation services to optimize patient outcomes.
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Key words
nodal Peripheral T cell lymphoma,autologous stem cell transplant,long-term outcome
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