- Adult patients with AML, RAEB, RAEB-T or CMML-T that are not in CR 21-50 days after beginning course one of initial induction chemotherapy; patients may not have received more than 1 prior course of chemotherapy prior to study entry; this must contain Ara-C at a dose of at least 1 g/m^2 daily x 4 days and either topotecan or an anthracycline at standard doses (i.e., daunorubicin =< 65 mg/m^2 daily x 3 days, or idarubicin 12 mg/m^2 daily x 3 days); patients beginning liposomal Daunorubicin on days 21 to 42 of course one must have persistent blasts in bone marrow or blood without evidence of improvement; patients beginning liposomal Daunorubicin on days 42 to 50 may or may not have persistent blasts but must have thrombocytopenia or neutropenia that is not improving