TY - JOUR
T1 - Impacts of thymoglobulin in patients with acute leukemia in remission undergoing allogeneic HSCT from different donors
AU - behalf of the GVHD Working Group of the Japan Society for Hematopoietic Cell Transplantation
AU - Wakamatsu, Manabu
AU - Terakura, Seitaro
AU - Ohashi, Kazuteru
AU - Fukuda, Takahiro
AU - Ozawa, Yukiyasu
AU - Kanamori, Heiwa
AU - Sawa, Masashi
AU - Uchida, Naoyuki
AU - Ota, Shuichi
AU - Matsushita, Akiko
AU - Kanda, Yoshinobu
AU - Nakamae, Hirohisa
AU - Ichinohe, Tatsuo
AU - Kato, Koji
AU - Murata, Makoto
AU - Atsuta, Yoshiko
AU - Teshima, Takanori
N1 - Publisher Copyright:
© 2019 by The American Society of Hematology.
PY - 2019/1/22
Y1 - 2019/1/22
N2 - Antithymocyte globulin (ATG) is widely used to reduce acute graft-versus-host disease (aGVHD) and chronic GVHD (cGVHD). To clarify the different impacts of ATG for conditioning across different donor types, we retrospectively analyzed patients with acute leukemia (n 5 6617) who underwent hematopoietic stem cell transplantation between 2008 and 2015 with ATG (n 5 279) or without ATG (n 5 6338). Because thymoglobulin is the only ATG drug approved for GVHD prophylaxis in Japan since September 2008, we included thymoglobulin alone in the present analysis. The survivors’ median follow-up time was 1081 days. Patients were categorized into 5 groups: cord blood (CB; n 5 1915), matched related donor (n 5 1772), 1-antigen mismatched related donor (1-MMRD; n 5 225), matched unrelated donor (MUD; n 5 1742), and 1-allele mismatched unrelated donor (1-MMUD; n 5 963). In multivariate analysis, ATG decreased overall survival (hazard ratio [HR], 1.403; P 5 .054) and GVHD-free/relapse-free survival (GRFS) (HR, 1.458; P 5 .053) in association with increased nonrelapse mortality (NRM) (HR, 1.608; P 5 .03) with CB, whereas it improved GRFS (HR, 0.515; P, .01) and decreased grades II to IV aGVHD (HR, 0.576; P, .01), extensive cGVHD (HR, 0.460; P 5 .02), and NRM (HR, 0.545; P 5 .03) with 1-MMUD. ATG did not impact survival with 1-MMRD and MUD. The use of ATG in conditioning is beneficial due to the reduction in acute/chronic GVHD without increasing NRM or disease relapse only in 1-MMUD transplantation. On the other hand, ATG is not recommended for CB transplantation.
AB - Antithymocyte globulin (ATG) is widely used to reduce acute graft-versus-host disease (aGVHD) and chronic GVHD (cGVHD). To clarify the different impacts of ATG for conditioning across different donor types, we retrospectively analyzed patients with acute leukemia (n 5 6617) who underwent hematopoietic stem cell transplantation between 2008 and 2015 with ATG (n 5 279) or without ATG (n 5 6338). Because thymoglobulin is the only ATG drug approved for GVHD prophylaxis in Japan since September 2008, we included thymoglobulin alone in the present analysis. The survivors’ median follow-up time was 1081 days. Patients were categorized into 5 groups: cord blood (CB; n 5 1915), matched related donor (n 5 1772), 1-antigen mismatched related donor (1-MMRD; n 5 225), matched unrelated donor (MUD; n 5 1742), and 1-allele mismatched unrelated donor (1-MMUD; n 5 963). In multivariate analysis, ATG decreased overall survival (hazard ratio [HR], 1.403; P 5 .054) and GVHD-free/relapse-free survival (GRFS) (HR, 1.458; P 5 .053) in association with increased nonrelapse mortality (NRM) (HR, 1.608; P 5 .03) with CB, whereas it improved GRFS (HR, 0.515; P, .01) and decreased grades II to IV aGVHD (HR, 0.576; P, .01), extensive cGVHD (HR, 0.460; P 5 .02), and NRM (HR, 0.545; P 5 .03) with 1-MMUD. ATG did not impact survival with 1-MMRD and MUD. The use of ATG in conditioning is beneficial due to the reduction in acute/chronic GVHD without increasing NRM or disease relapse only in 1-MMUD transplantation. On the other hand, ATG is not recommended for CB transplantation.
UR - http://www.scopus.com/inward/record.url?scp=85059794915&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059794915&partnerID=8YFLogxK
U2 - 10.1182/bloodadvances.2018025643
DO - 10.1182/bloodadvances.2018025643
M3 - Article
C2 - 30626574
AN - SCOPUS:85059794915
VL - 3
SP - 105
EP - 115
JO - Blood advances
JF - Blood advances
SN - 2473-9529
IS - 2
ER -