Application of low-dose ATG for GVHD prophylaxis in patients undergoing PBSCT aged over forty years old

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi
C LiangM Z Han

Abstract

Objective: To explore the effectiveness of a novel GVHD prophylaxis regimen containing low-dose anti-T lymphocyte globulin (ATG) in patients undergoing peripheral blood stem cell transplantation (PBSCT) from HLA-matched sibling donors (MSD) given both the patients and donors were aged over forty years old. Methods: From March 2013 to April 2017, 98 patients with hematologic malignancies were enrolled in the study. Standard GVHD prophylaxis consisted of the administration of cyclosporine A/tacrolimus and a short course of methotrexate. In ATG group, 43 patients received low-dose rabbit ATG (Sanofi, 1.5 mg/kg per day for 3 consecutive days) before PBSCT. A retrospective matched-pair analysis was performed and 55 matched controls were available. The therapeutic process and clinical outcome were retrospectively analyzed. Results: ①Neutrophil engraftment was achieved earlier in ATG group than the control one [13(11-17)d vs 14(12-24)d, P=0.001]. The time to platelet engraftment was similar between the two groups [14(11-43)d vs 15(11-42)d, P=0.071]. ②The cumulative incidence of aGVHD was significantly lower in ATG group [25.6% (95%CI 13.7%-39.3%) vs 49.1% (95%CI 35.2%-61.6%), P=0.018]. The incidences of grade Ⅱ-Ⅳ aGVHD [18.6% (95%CI 8...Continue Reading

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