Impact of Pre-existing Invasive Aspergillosis on Allogeneic Stem Cell Transplantation

Via a prospective non-interventional study clinical outcome of patients with - and without - history of pre-existing invasive aspergillosis undergoing allo-HSCT will be assessed, in terms of non-relapse mortality overall mortality and fungal infectious morbidity. Aim. Assessment of 1-year outcome of patients undergoing allo-HSCT with history of pre-existing IA vs. no pre-existing IA. Hypothesis. NRM in patients with pre-existing IA is not higher (by a specified margin of 10%) than patients without pre-existing IA. Study population. First allo-HSCT in patients with acute leukaemia and MDS given stem cell grafts. Cohort 1: History of probable or proven invasive aspergillosis Cohort 2: No History of probable or proven invasive aspergillosis: this cohort includes also the patient with a history of possible mycosis not documented microbiologically.