Blood · 2024
Abatacept for acute graft-versus-host disease prophylaxis after unrelated donor hematopoietic cell transplantation.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Kean Leslie S, Burns Linda J, Kou Tzuyung D, Kapikian Roxanne, Lozenski Karissa, Langston Amelia, Horan John T, Watkins Benjamin, Qayed Muna, Bratrude Brandi, Betz Kayla, Tang Xiao-Ying, Zhang Mei-Jie, Connolly Sean E, Polinsky Martin, Gavin Brian, Gomez-Caminero Andres, Pasquini Marcelo C
Аннотация
Abatacept plus calcineurin inhibitors/methotrexate (CNI/MTX) is the first US Food and Drug Administration (FDA)-approved regimen for acute graft-versus-host disease (aGVHD) prophylaxis during unrelated-donor hematopoietic cell transplantation (URD-HCT). Using Center for International Blood and Marrow Transplant Research data, we investigated its impact in patients receiving 7/8 HLA-mismatched unrelated donor (MMUD) or 8/8 HLA-matched unrelated donor (MUD) URD-HCT between 2011 and 2018. Primary outcomes included day-180, 1-year, and 2-year overall survival (OS) and relapse-free survival (RFS) for abatacept + CNI/MTX vs CNI/MTX, CNI/MTX + antithymocyte globulin (ATG), and posttransplant cyclophosphamide-based prophylaxis (PT-Cy). For 7/8 MMUDs, day-180 OS (primary end point supporting FDA approval) was significantly higher for abatacept + CNI/MTX vs CNI/MTX (98% vs 75%; P = .0028). Two-year RFS was significantly higher for abatacept + CNI/MTX vs CNI/MTX (74% vs 49%; P = .0098) and CNI/MTX + ATG (77% vs 35%; P = .0002), and similar vs PT-Cy (72% vs 56%; P = .1058). For 8/8 MUDs, 2-year RFS for abatacept + CNI/MTX was numerically higher vs CNI/MTX (63% vs 52%; P = .1497), with an improved hazard ratio (HR) of 0.46 (0.25-0.86), and vs CNI/MTX + ATG (66% vs 55%; P = .1193; HR, 0.39 [0.21-0.73]), and was similar vs PT-Cy (68% vs 57%; P = .2356; HR, 0.54 [0.26-1.11]). For 7/8 MMUD and 8/8 MUD recipients, abatacept + CNI/MTX prophylaxis improved survival outcomes vs CNI/MTX and CNI/MTX + ATG; outcomes were similar to PT-Cy-based regimens. Abatacept + CNI/MTX may facilitate unrelated donor pool expansion for HCT.