Article (Scientific journals)
Allogeneic hematopoietic cell transplantation with cord blood versus mismatched unrelated donor with post-transplant cyclophosphamide in acute myeloid leukemia.
Dholaria, Bhagirathbhai; Labopin, Myriam; Sanz, Jaime et al.
2021In Journal of hematology & oncology, 14 (1), p. 76
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Keywords :
Acute leukemia; Acute myeloid leukemia; Allogeneic hematopoietic cell transplantation; Bone marrow; Cord blood transplantation; Cord blood unit; Disease relapse; Graft-versus-host disease; Human leukocyte antigen; Mismatched donor; Peripheral blood stem cell; Post-transplant cyclophosphamide; Toxicity
Abstract :
[en] BACKGROUND: Allogeneic hematopoietic cell transplantation (allo-HCT) using a mismatched unrelated donor (MMUD) and cord blood transplantation (CBT) are valid alternatives for patients without a fully human leukocyte antigen (HLA)-matched donor. Here, we compared the allo-HCT outcomes of CBT versus single-allele-mismatched MMUD allo-HCT with post-transplant cyclophosphamide (PTCy) in acute myeloid leukemia. METHODS: Patients who underwent a first CBT without PTCy (N = 902) or allo-HCT from a (HLA 9/10) MMUD with PTCy (N = 280) were included in the study. A multivariate regression analysis was performed for the whole population. A matched-pair analysis was carried out by propensity score-based 1:1 matching of patients (177 pairs) with known cytogenetic risk. RESULTS: The incidence of grade II-IV and grade III-IV acute graft-versus-host disease (GVHD) at 6 months was 36% versus 32% (p = 0.07) and 15% versus 11% (p = 0.16) for CBT and MMUD cohorts, respectively. CBT was associated with a higher incidence of graft failure (11% vs. 4%, p < 0.01) and higher 2-year non-relapse mortality (NRM) (30% vs. 16%, p < 0.01) compared to MMUD. In the multivariate analysis, CBT was associated with a higher risk of, NRM (HR = 2.09, 95% CI 1.46-2.99, p < 0.0001), and relapse (HR = 1.35, 95% CI 1-1.83, p = 0.05), which resulted in worse leukemia-free survival (LFS) (HR = 1.68, 95% CI 1.34-2.12, p < 0.0001), overall survival (OS) (HR = 1.7, 95% CI 1.33-2.17, p < 0.0001), and GVHD-free, relapse-free survival (GRFS) (HR = 1.49, 95% CI 1.21-1.83, p < 0.0001) compared to MMUD. The risk of grade II-IV acute GVHD (p = 0.052) and chronic GVHD (p = 0.69) did not differ significantly between the cohorts. These results were confirmed in a matched-pair analysis. CONCLUSIONS: CBT was associated with lower LFS, OS, and GRFS due to higher NRM, compared to MMUD allo-HCT with PTCy. In the absence of a fully matched donor, 9/10 MMUD with PTCy may be preferred over CBT.
Disciplines :
Hematology
Author, co-author :
Dholaria, Bhagirathbhai
Labopin, Myriam
Sanz, Jaime
Ruggeri, Annalisa
Cornelissen, Jan
Labussière-Wallet, Hélène
Blaise, Didier
Forcade, Edouard
Chevallier, Patrice
Grassi, Anna
Zubarovskaya, Ludmila
Kuball, Jürgen
Ceballos, Patrice
Ciceri, Fabio
Baron, Frédéric  ;  Université de Liège - ULiège > GIGA I3 - Hematology
Savani, Bipin N.
Nagler, Arnon
Mohty, Mohamad
More authors (8 more) Less
Language :
English
Title :
Allogeneic hematopoietic cell transplantation with cord blood versus mismatched unrelated donor with post-transplant cyclophosphamide in acute myeloid leukemia.
Publication date :
2021
Journal title :
Journal of hematology & oncology
eISSN :
1756-8722
Volume :
14
Issue :
1
Pages :
76
Peer reviewed :
Peer reviewed
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since 28 May 2021

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