Safety and efficacy of total body irradiation, cyclophosphamide, and cytarabine as a conditioning regimen for allogeneic hematopoietic stem cell transplantation in patients with acute lymphoblastic leukemia
Safety and efficacy of total body irradiation, cyclophosphamide, and cytarabine as a conditioning regimen for allogeneic hematopoietic stem cell transplantation in patients with acute lymphoblastic leukemia
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DOI:
10.1002/ajh.23109
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发表时间:
2012-04-01
影响因子:
12.8
通讯作者:
Okamoto, Shinichiro
中科院分区:
文献类型:
--
作者:
Mori, Takehiko;Aisa, Yoshinobu;Okamoto, Shinichiro
Disease relapse still greatly interferes with the success of allogeneic hematopoietic stem cell transplantation (HSCT) for acute lymphoblastic leukemia (ALL). This study retrospectively evaluated the long-term safety and efficacy of a conditioning regimen consisting of total body irradiation (TBI; 12 Gy), cyclophosphamide (CY; 60 mg kg-1, two doses), and high-dose cytarabine (Ara-C; 2 g m-(2); four doses) for patients with ALL. Fifty-five patients (median age: 31-years old) were evaluated. Stem cells were from human leukocyte antigen-identical siblings in 22 patients and from alternative donors in 33. There were no cases of early death before engraftment, and 100-day transplant-related mortality was 7.3%. With a median follow-up period of 9.6 years, 5-year overall and disease-free survival were 63.2% (95% CI: 46.579.9%) and 63.6% (95% CI: 47.180.1%) in patients with complete remission, respectively, both of which were significantly higher than the values of 27.3% (95% CI: 8.746.0%) and 22.7% (95% CI: 5.340.1%) for patients in advanced stages (P < 0.01). These results suggest that TBI and CY (TBI-CY) plus Ara-C could be a feasible and effective conditioning regimen for adult patients with ALL both in remission and in advanced stages, and a future study to compare this combination therapy with TBI-CY is required. Am. J. Hematol. 2012. (C) 2011 Wiley Periodicals, Inc.