Acute promyelocytic leukemia with t (15; 17). Blast crisis of chronic myeloid leukemia. Leukemias that appear after other myeloproliferative neoplasms. Leukemias ensuing myelodysplastic syndromes after more than 6 months. Presence of other malignancies in activity. AML secondary to chemo-radiotherapy treatment for other malignancies. Abnormal renal and hepatic function, with creatinine value and / or bilirubin 2 times the normal limit value, except where the alterations are attributable to leukemia.