Yan Hongju,Tang Lun,Gao Lei,Zhang Cheng,Liu Yao,Gao Li,Kong Peiyan,Liu Hong,Zhang Xi.Efficacy of haploid-matched vs sibling-matched allogeneic stem cell transplantation for high risk acute lymphoblastic leukemia[J].J Amry Med Univ (J Third Mil Med Univ),2016,38(12):1340-1346.
Yan Hongju,Tang Lun,Gao Lei,Zhang Cheng,Liu Yao,Gao Li,Kong Peiyan,Liu Hong,Zhang Xi.Efficacy of haploid-matched vs sibling-matched allogeneic stem cell transplantation for high risk acute lymphoblastic leukemia[J].J Amry Med Univ (J Third Mil Med Univ),2016,38(12):1340-1346.DOI:
Efficacy of haploid-matched vs sibling-matched allogeneic stem cell transplantation for high risk acute lymphoblastic leukemia
Objective To determine the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of high risk acute lymphoblastic leukemia (ALL). Methods A total of 69 ALL patients treated with allo-HSCT in our center from July 2007 to August 2013 and followed up for more than 2 years after transplantation were enrolled in this study. According to transplantation types
they were divided into haploid-matched group (n=42) and sibling-matched group (n=27). Clinical characteristics and efficacy of 2 groups were retrospectively analyzed. Their survival was analyzed by the Kaplan-Meier method and the prognostic factors were analyzed with COX regression model. Results The 2-years overall survival (OS) and 2-year leukemia-free survival (LFS) were 63.4% and 59.4%
in the haploid-matched group
and 53.9% and 53.7%
in the sibling-matched group(P0.05). There was no significant difference in 2-year non-relapse mortality (NRM) between the 2 group(P0.05)
but was in 2-year cumulative relapse rate (RR)
with that of haploid-matched group obviously higher than that of sibling-matched group (39.5% vs 19.5%
P=0.014). In hematopoietic reconstruction
neutrophils reconstruction was remarkably slower in the haploid-matched group than the sibling-matched group (P=0.002)
but platelet reconstruction was similar(P=0.072). The incidence of grade Ⅰ~Ⅱ acute graft-versus-host disease (aGVHD) was obviously higher in haploid-matched group than sibling-matched group(P=0.008)
but those of grade Ⅲ~Ⅳ aGVHD and cGVHD were similar in the 2 groups(P0.05). The early infection incidents after HSCT (within 6 months) was obviously higher in the haploid-matched group than sibling-matched group (P=0.02).Cox regression analysis showed that disease status before transplantation (not CR1) was a main risk factor for allo-HSCT(P=0.001)
with a relative risk of 7.581. The limited chronic GVHD (P=0.013)and duration from first diagnosis to transplantation (P=0.012) were protective factors
with their relative risks of 0.178 and 0.688 respectively. Conclusion For high-risk ALL patients
haploid-matched and sibling-matched HSCT are similar in overall outcome
so haploid-matched donor can be suitable source for allogeneic stem cell transplantation.
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