Overall survival of patients with MPN-AP/BP that underwent allogeneic hematopoietic stem cell transplantation. (A) OS of patients with MPN-AP/BP that underwent allo-HSCT from time of diagnosis. (B) OS from time of allo-HSCT in patients with MPN-AP/BP. (C) OS from time of allo-HSCT in patients with MPN-AP/BP stratified by 2017 ELN response before allo-HSCT. PD, progressive disease.