Graft-versus-host disease (GVHD) prophylaxis using antithymocyte globulin (ATG) has been well-established in allogeneic hematopoietic stem cell transplantation. We collected data on GVHD prophylaxis from 27,091 cases of hematological malignancies undergoing bone marrow transplantation (BMT) and peripheral blood stem cell transplantation (PBSCT) from 2010 to 2022. Annual trends in GVHD prophylaxis were analyzed based on donor type, stem cell source or HLA compatibility. The number of GVHD prophylaxis using ATG was increased in related-HLA matched-PBSCT [2010: n=6 (1.6%), 2022: n=42 (14.1%)], unrelated-HLA matched-PBSCT [2010: n=0 (0.0%), 2022: n=80 (43.0%)], unrelated-HLA 1-locus mismatched-BMT [2010: n=36 (9.6%), 2022: n=97 (40.4%)], and unrelated-HLA 1-locus mismatched-PBSCT [2010: n=0 (0.0%), 2022: n=64 (59.3%)]. Conversely, ATG use decreased in related-HLA haplo-PBSCT [2010: n=111 (67.7%), 2022: n=63 (11.2%)] due to the increasing use of posttransplant cyclophosphamide (PTCy). This study highlights the variation in GVHD prophylaxis trends using ATG across transplantation types.
抄録全体を表示