Because the anti-leukemic activity of busulfan, this dug is largely used in graft conditioning but in elderly and/or cormobid patienth an excess of toxicity is observed. This study focus on the possibility of significanty reducing this toxicity by customizing the doses of busulfan to individual PK parameters.
Adult patient up to 65 years old
Acute leukemia, myelodysplastic syndrome or myeloproliferative neoplasia eligible for an allogeneic transplant
Chemosensitive disease, in complete or partial or stable remission
Allograft from an identical HLA related donor, Haplo-identical or unrelated (HLA compatibility from 8/10 to 10/10 according to HLA-A, -B, -C, -DR, -DQ allelics)
Pregnant woman, without effective contraception or breastfeeding
Person in emergency situation, patient deprived of liberty or placed under the authority of a tutor,
Impossibility of undergoing medical follow-up of the trial for geographic, social or psychological reasons
Contraindications to performing an allogeneic transplant