HLA-haploidentical blood and bone marrow transplantation with anti-thymocyte globulin: long-term comparison with HLA-identical sibling transplantation.
We present an update of our results regarding related HLA-haploidentical and HLA-identical sibling hematopoietic stem cell transplantation (HSCT) in patients with leukemia. We compared the outcomes of 107 patients with leukemia undergoing HLA-identical sibling (n=51) or related HLA-haploidentical (n=56) HSCT performed during the same time period. Patients received BU-CY/CY-TBI in HLA-identical sibling HSCT or TBI+Ara-C+CY+ATG/CCNU+Ara-C+Bu+CY+ATG in haploidentical HSCT as conditioning regimens, followed by unmanipulated marrow and/or peripheral blood (PB) transplantation. All patients achieved full engraftment. The cumulative incidence of grades II through IV acute graft-versus-host disease (aGvHD) in the matched and haploidentical cohorts was 13.7% and 26.8% (P<0.05), respectively. The risk of developing cGvHD was not different between HLA-matched and haploidentical patients (P>0.05). The two-year incidence of treatment-related mortality for matched and haploidentical patients was 7.8% and 12.5%, respectively, with P>0.05, and the incidence of relapse was 17% and 22%, respectively, with P>0.05. The two-year adjusted leukemia-free survival for matched versus haploidentical patients was 76% and 68%, respectively, with P>0.05, and the overall survival for matched versus haploidentical patients was 80% and 70%, respectively, with P>0.05. Multivariate analyses showed that only advanced disease stage and a diagnosis of acute leukemia were related to increased risk of relapse, treatment failure, and overall mortality. In summary, HSCT performed with related HLA-haploidentical donors is a feasible approach with acceptable outcomes.
Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China. xhchen888@yahoo.com.cn
Xing-Hua
XH
Chen
Lei
L
Gao
Xi
X
Zhang
Li
L
Gao
Cheng
C
Zhang
Pei-Yan
PY
Kong
Hong
H
Liu
Xian-Gui
XG
Peng
Ai-Hua
AH
Sun
De-Guang
DG
Qi
Yi
Y
Gong
Qing-Yu
QY
Wang
D000293:Adolescent; D000328:Adult; D000961:Antilymphocyte Serum / Q000276:immunology / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006086:Graft vs Host Disease / Q000453:epidemiology / Q000276:immunology / Q000401:mortality; D006680:HLA Antigens / Q000235:genetics / Q000276:immunology*; D018380:Hematopoietic Stem Cell Transplantation / Q000009:adverse effects / Q000401:mortality; D006801:Humans; D007938:Leukemia / Q000517:prevention & control / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D035781:Siblings; D016019:Survival Analysis; D019172:Transplantation Conditioning; D055815:Young Adult
D000961:Antilymphocyte Serum; D006680:HLA Antigens