Family mismatched allogeneic stem cell transplantation for Myelofibrosis: Report from the Chronic Malignancies Working Party of EBMT.

•We performed a retrospective review of 56 myelofibrosis patients transplanted from mismatched family donors.•Neutrophil engraftment at a median of 20days was observed in 82%.•Low rates of acute GVHD grades II to IV were observed in 28% (16% to 40%) and grades III to IV in 9% (2% to 16%).•Chronic GVHD at 1 year was found in 45% (32% to 58%).•Overall survival at 2years was 56% (41% to 70%).