Prospective Study on the Feasibility of Plasma FLT3-Ligand Assay to Achieve a First Estimate of Its Prognostic Value on the Outcome of Patients Treated Intensively for Acute Leukemia

The samples of the study were made in conjunction with blood tests done routinely, no additional venipuncture is provided by the study. Flt3L plasma concentration will be measured at different time monitoring of patients according to their pathology (Acute lymphoblastic leukemia or acute myeloid leukemia). The exact number of samples will vary for each patient depending on the course of the illness, it is expected up to 15 blood tubes 9mL.