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Long-term outcomes of peripheral blood stem cell transplantation for 38 patients with peripheral T-cell lymphoma


 Department of Hematology, Chinese People's Liberation Army General Hospital, Beijing 100853, China

Correspondence Address:
Honghua Li,
Department of Hematology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853
China
Li Yu,
Department of Hematology, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853
China
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Source of Support: None, Conflict of Interest: None

Objective: In this study, to investigate clinical characteristics, response, outcome, and prognosis of peripheral blood stem cell transplantation (PBSCT) for patients with peripheral T-cell lymphoma (PTCL). Methods: This study retrospectively analyzed the efficacy of PBSCT in 38 patients with PTCL. Kaplan-Meier methods were used in survival analysis, and the Cox regression model was applied in multivariate analysis. There were ten clinical parameters were analyzed. Results: The 2-year overall survival (OS) was 46%, and the 5-year OS was 34% after a median follow-up of 40 months. The patients who received allogeneic PBSCT (allo-PBSCT) had a higher nonrelapse mortality than autologous PBSCT (auto-PBSCT), but they could achieve a longer-term disease-free survival in the former, which OS could achieve 40%. Survival analysis with Kaplan-Meier method showed the pretransplant disease status, B symptoms, serum lactate dehydrogenase (LDH) in early (>275 U/L), Eastern Cooperative Oncology Group (ECOG) score (>1), prognostic index for PTCL score (>2) were all prognostic factors for posttransplant OS. Pretransplant disease status is the only prognostic factor for allo-PBSCT. Conclusion: The key was to reducing transplant-related mortality of allo-PBSCT by reduced-intensity conditioning. Factors such as level of early serum LDH, extranodal involvement, B symptoms, ECOG score, Ann Arbor stage, and pretransplant disease status were all related to the prognosis of patients treated with PBSCT. Allo-PBSCT maybe suggested as the first line therapy for late-stage PTCL patients who could reach treatment remission before transplantation.


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