Electronic Database for the Follow up of the ATG_FamilyStudy

Allogeneic hematopoietic stem cell transplantation (HSCT) is capable of definitive cure of acute leukemias. The most important post-transplant complication is graft vs host disease (GVHD) which can be substantially decreased by the addition of anti-T lymphocyte globulin (ATG-Grafalon) to the standard GVHD prophylaxis (cyclosporin and methotrexate) without any increase in relapses and infections (Kroger et al NEJM 2016, ClinicalTrials.gov number, NCT00678275). In the ATG\_familystudy (prospective, randomised, multicenter study) a decrease in the incidence of chronic GVHD (from 67.8% to 32.2%) was observed after the addition of ATG (10 mg/kg for three days ,from day -3 to -1) to the standard GVHD prophylaxis in the setting of acute leukemias in any remission, receiving peripheral blood stem cells from an HLA identical sibling donor after myeloablative preparative regimen. In particular, the GVHD extensive form was reduced from 52.4% to 7.6%. The study has been closed in 2014 with a minimum follow up of 2 years from transplant. The investigators would like to evaluate the longer term follow up of this study.