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01-02-2021 | Myelodysplastic Syndrome | Original Article

Preemptive low-dose interleukin-2 or DLI for late-onset minimal residual disease in acute leukemia or myelodysplastic syndrome after allogeneic hematopoietic stem cell transplantation

Authors: Xiao-Lin Yuan, Ya-Min Tan, Ji-Min Shi, Yan-Min Zhao, Jian Yu, Xiao-Yu Lai, Lu-Xin Yang, He Huang, Yi Luo

Published in: Annals of Hematology | Issue 2/2021

Abstract

Minimal residual disease (MRD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) heralds high risk of relapse. Whether preemptive recombinant interleukin-2 (pre-IL2) is effective for patients with late-onset MRD (LMRD) remains unknown. We retrospectively compared the efficacy and safety of pre-IL2 (n = 30) and pre-DLI (n = 25) for LMRD in patients receiving allo-HSCT for acute leukemia or myelodysplastic syndrome. The 1-year overall survival (OS) and disease-free survival (DFS) rates were 86.7% and 78.4% (P = 0.267), 83.3% and 75.6% (P = 0.329), the cumulative incidence of grades III–IV acute graft-versus-host disease (aGVHD) at 100 days post-preemptive intervention was 3.3% and 12.0% (P = 0.226) in the pre-IL2 group and pre-DLI group, respectively. The 1-year cumulative incidence of moderate/severe chronic GVHD (cGVHD), relapse (CIR), and non-relapse mortality (NRM) were 7.7% and 27.9% (P = 0.018), 13.6% and 20.0% (P = 0.561) and 3.3% and 5.5% (P = 0.321) in the two groups, respectively. No remarkable differences in CIR, OS, and DFS between the two intervention groups were found in multivariate analysis. The GVHD-free and relapse-free survival (GRFS) were better in the pre-IL2 group than in the pre-DLI group (HR = 0.31, 95% confidence interval (CI), 0.12-0.76; P = 0.011). In conclusion, preemptive low-dose IL2 and preemptive DLI yield comparable outcomes for patients with LMRD receiving allo-HSCT, in terms of aGVHD, NRM, relapse, OS, and DFS. However, preemptive low-dose IL2 has a lower incidence of moderate/severe cGVHD and a higher CRFS. Preemptive low-dose IL2 may be an alternative method for patients who develop LMRD after allo-HSCT, particularly for patients who cannot receive preemptive DLI.

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Title: Preemptive low-dose interleukin-2 or DLI for late-onset minimal residual disease in acute leukemia or myelodysplastic syndrome after allogeneic hematopoietic stem cell transplantation
Authors: Xiao-Lin Yuan
Ya-Min Tan
Ji-Min Shi
Yan-Min Zhao
Jian Yu
Xiao-Yu Lai
Lu-Xin Yang
He Huang
Yi Luo
Publication date: 01-02-2021
Publisher: Springer Berlin Heidelberg
Keywords: Myelodysplastic Syndrome
Graft-Versus-Host Disease
Graft-Versus-Host Disease
Stem Cell Transplantation
Stem Cell Transplantion
Stem Cell Transplantation
Leukemia
Published in: Annals of Hematology / Issue 2/2021
Print ISSN: 0939-5555
Electronic ISSN: 1432-0584
DOI: https://doi.org/10.1007/s00277-020-04326-6

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