Outcomes of Allogeneic Hematopoietic Cell Transplantation in T Cell Prolymphocytic Leukemia: A Contemporary Analysis from the Center for International Blood and Marrow Transplant Research

•Allogeneic hematopoietic cell transplantation is effective in yielding durable remissions in patients with T cell prolymphocytic leukemia.•Myeloablative conditioning, age >60 years, and Karnofsky Performance Status <90 were associated with reduced overall survival (OS).•Reduced-intensity conditioning and avoidance of in vivo T cell depletion correlated with better disease-free survival (DFS) and lower treatment-related mortality (TRM).•Total body irradiation was found to have no significant effect on OS, DFS. or TRM.