Abstract
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). 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. 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. 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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