scholarly journals Haploidentical transplantation compared with matched sibling and unrelated donor transplantation for adults with standard-risk acute lymphoblastic leukaemia in first complete remission

2017 ◽  
Vol 179 (1) ◽  
pp. 120-130 ◽  
Author(s):  
Li-Jie Han ◽  
Yu Wang ◽  
Zhi-Ping Fan ◽  
Fen Huang ◽  
Jian Zhou ◽  
...  
Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 526-526
Author(s):  
Vikas Gupta ◽  
Martin S. Tallman ◽  
Wensheng He ◽  
Brent Logan ◽  
John F. DiPersio ◽  
...  

Abstract Abstract 526 In patients with acute myeloid leukemia (AML) in first complete remission (CR1), the indications for matched sibling donor (MSD) transplants and unrelated donor (URD) haemopoietic stem cell transplantation (HSCT) are different. We sought to determine the prognostic impact of donor type on the outcomes of AML with adverse risk karyotype in CR1, a high-risk AML population considered as a standard indication for MSD and URD HSCT. We evaluated the outcomes of 584 patients undergoing allogeneic HSCT for AML with adverse risk karyotype in CR1 between 1995 and 2006, reported to the CIBMTR. Adverse risk karyotype was defined according to SWOG/ECOG classification. Cytogenetics abnormalities were further classified as: complex karyotype (3 or more abnormalities), 32%; and Non-complex divided as abnormal chromosome 7, 25%; chromosome 5, 9%; MLL gene rearrangements, 18%; t (6;9), 5%; and others, 10%. 226 patients underwent MSD and 358 URD. URD were classified based on high resolution typing as:” well matched” [n=254 (71%)] with no known disparity at HLA A, B, C, DRB1; and, “partially matched” [n=104 (29%)] with one locus known or likely mismatched. Previous MDS was present in 19% and 14% had therapy-induced (t-AML). Conditioning regimens were myeloablative and reduced intensity in 74% and 26%, respectively. At 3 years treatment-related mortality (TRM) incidence was 28% (95% CI 24-31); relapse 36%(32-40); disease-free survival (DFS) 36%(32-41) and overall survival (OS) 39%(35-44). Multivariate analyses are summarized in the table. “Well matched” URD and MSD yielded similar DFS and OS, while outcomes were significantly inferior for “partially matched” URD. Cytogenetically defined subsets had similar outcomes. Evaluated as a time-dependent covariate, chronic GVHD had a significantly lower risk of relapse (RR 0.68, p=0.046), while acute GVHD had no effect (RR 0.99, p=0.96). “Well matched” URD and MSD lead to similar DFS and OS in AML CR1patients with adverse risk karyotype. The pool of patients who may benefit from graft-vs-leukemia effect generated with allogeneic HSCT may be considerably expanded with “well-matched” URD HSCT. If a suitable MSD is not availabel, “well-matched” URD should be strongly considered where a MSD HSCT would otherwise be undertaken. Disclosures: No relevant conflicts of interest to declare.


2021 ◽  
Vol 11 ◽  
Author(s):  
Yan-Ru Ma ◽  
Xiaohui Zhang ◽  
Lanping Xu ◽  
Yu Wang ◽  
Chenhua Yan ◽  
...  

G-CSF-mobilized peripheral blood (G-PB) harvest is the predominant graft for identical sibling donor and unrelated donor allogeneic hematopoietic stem cell transplantation (HSCT) recipients, but it was controversial in haploidentical related donor (HID) HSCT. In this registry study, we aimed to identify the efficacy of HID G-PB HSCT (HID-PBSCT) for acute leukemia (AL) patients in first complete remission (CR1). Also, we reported the outcomes for the use of G-PB grafts in comparison with the combination of G-BM and G-PB grafts in HID HSCT recipients. Sixty-seven AL patients in CR1 who received HID-PBSCT were recruited at Institute of Hematology, Peking University. Patients who received haploidentical HSCT using the combination of G-BM and G-PB harvests in the same period were enrolled as controls (n=392). The median time from HSCT to neutrophil and platelet engraftment was 12 days (range, 9–19 days) and 12 days (range, 8–171 days), respectively. The 28-day cumulative incidence of neutrophil and platelet engraftment after HSCT was 98.5% and 95.5%, respectively. The cumulative incidences of grade II–IV and grade III–IV acute graft-versus-host disease (GVHD) were 29.9% (95%CI 18.8–40.9%) and 7.5% (95%CI 1.1–13.8%), respectively. The cumulative incidences of total and moderate-severe chronic GVHD were 54.9% (95%CI 40.9–68.8%) and 17.4% (95%CI 6.7–28.0%), respectively. The cumulative incidences of relapse and non-relapse mortality were 13.9% (95%CI 5.4–22.5%) and 3.4% (95%CI 0–8.1%), respectively. The probabilities of overall survival (OS) and leukemia-free survival (LFS) were 84.7% (95%CI 74.7–94.7%) and 82.7% (95%CI 73.3–92.1%) respectively. Compared with the HID HSCT recipients using the combination of G-BM and G-PB grafts, the engraftments of neutrophil and platelet were both significantly faster for the G-PB group, and the other clinical outcomes were all comparable between the groups. In multivariate analysis, graft types did not influence the clinical outcomes. Overall, for the patients with AL CR1, G-PB graft could be considered an acceptable graft for HID HSCT recipients. This study was registered at https://clinicaltrials.gov as NCT03756675.


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