Abstract
Autologous stem cell transplantation (ASCT) is a salvage therapy for relapsed or refractory diffuse large B-cell lymphoma (DLBCL). We have developed a novel conditioning regimen called CEAC (oral semustine 250 mg/m2 d-6, etoposide 300 mg/m2 d-5 ~ d-2, cytarabine 500 mg/m2 d-5 ~ d-2, and cyclophosphamide 1200 mg/m2 d-5 ~ d-2) In lymphoma patients in China. Here, we conducted a study to compare the conventional BEAM regimen with the CEAC regimen in 110 DLBCL patients. Propensity-score matching was performed in a 1:4 ratio (22 patients received BEAM and 88 received CEAC). Our results showed no significant difference in the overall response rate (95% vs 97%, P = 1.000) and complete response rate (66% vs 73%, P = 0.580) between the two cohorts. The 5-year progression-free survival (PFS), 5-year overall survival (OS), and 5-year cumulative incidence of relapse (CIR) for all patients were 72% (95% CI 62%–82%), 92% (95% CI 86%–97%), and 29% (95% CI 17%–38%), respectively. There was no significant difference in the 5-year PFS (80% vs 70%, P = 0.637), 5-year OS (95% vs 91%, P = 0.496), and 5-year CIR (20% vs 30%, P = 0.733) between cohorts. In terms of safety, the CEAC cohort had a lower incidence rate of grade 1–2 gastrointestinal hemorrhage (P = 0.023) and severe nausea (P = 0.007) compared with the BEAM cohort. In conclusion, the CEAC regimen seems to be a suitable alternative to the BEAM regimen for ASCT in DLBCL patients.
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Acknowledgements
The authors thank the patients who have participated in the study. This work was supported by Science and Technology Commission of Shanghai Municipality (23YF1458800) and grants from the National Natural Science Foundation of China (NSFC) (82270202). We would like to thank MogoEdit (https://www.mogoedit.com) for its English editing during the preparation of this manuscript.
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Tao Wang received funding from the Science and Technology Commission of Shanghai Municipality (23YF1458800), and Jianmin Yang received funding from the National Natural Science Foundation of China (NSFC) (82270202).
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JY, YL and GL designed the study approved the final version of the manuscript. TW and PL analyzed the data, wrote the manuscript. LX, LG, XN, GT, LC, JC, LW, YW, WF, WY, NL and RL collected the data and critically revised the manuscript.
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Wang, T., Liu, P., Xu, L. et al. CEAC (oral semustine, etoposide, cytarabine and cyclophosphamide) vs BEAM (carmustine, etoposide, cytarabine, and melphalan) conditioning regimen of autologous stem cell transplantation for diffuse large B-cell lymphoma: a post-hoc, propensity score-matched, cohort study in Chinese patients. Ann Hematol 103, 575–582 (2024). https://doi.org/10.1007/s00277-023-05513-x
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DOI: https://doi.org/10.1007/s00277-023-05513-x