[Allogeneic hematopoietic stem cell transplantation for acute lymphocytic leukemia]

Huan Chen, Han-yun Ren, Nai-lan Guo, Xiao-jun Huang, Kai-yan Liu, Lan-ping Xu, Yao-chen Zhang, Huan Zheng, Tong Wu, Dai-hong Liu, Shen-miao Yang, Dao-pei Lu
Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi 2004, 25 (2): 87-90

OBJECTIVE: To retrospectively analyze the results of a consecutive series of 100 ALL patients received allogeneic hematopoietic stem cell transplantation (allo-HSCT) in our center.

METHODS: Of the 100 ALL patients, 69 were male and 31 female, with a median age of 29.5 (4 - 47) years. Sixty-nine cases were in the first complete remission (CR(1)), 13 in more than CR(1) and 18 in relapse before transplant. Allo-HSCT from HLA identical siblings was performed for 86 patients, of whom 64 received bone marrow transplantation (BMT) and 22 peripheral blood stem cell transplantation (PBSCT). HLA matched unrelated BMT was performed for 8 patients, cord-blood transplantation from unrelated donor for 6 patients. Forty-five patients underwent allo-HSCT with conditioning regimen of Cy/TBI, 55 with BUCY. Prophylaxis of graft-versus-host disease (GVHD) included long-term MTX regimen (4 cases) and CsA + MTX regimen (96 cases). The average follow-up was 38.1 months.

RESULTS: The 5-year overall survival (OS) and disease-free survival (DFS) of the 100 cases of ALL was 53.4% and 50.5%. The 5-year OS and DFS were significantly longer for patients in CR(1) than in >CR(1) and relapse patients before allo-HSCT (P < 0.001). The outcome of PBSCT seemed superior to that of BMT, but there was no difference between them. Multivariate analysis showed the most significant factor associated with long post allo-HSCT survival was that the patient underwent transplantation in CR(1). There was no significant difference in 5-year OS, DFS, cumulative incidences of relapse rate and treatment related mortality between the two cohorts prepared with TBI or BUCY.

CONCLUSIONS: Allo-HSCT can cure a significant proportion of ALL patients, especially for those in CR(1). There was no significant difference in OS, DFS between the two different conditioning regimens and the different transplant choices.


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