Patients reaching complete remission (CR) after induction or induction followed by salvage were eligible for a second R2 randomization between mild versus intensive post-remission therapy, but only if they did not present acquired contra-indication to further intensive chemotherapy (baseline criteria). This second randomization was stratified on centers, AML groups (de novo versus post-MDS AML), and first randomization groups. Mild post-remission therapy was administered in out-patients and consisted of six 1+5 monthly courses with either 45 mg/m2 DNR or 9 mg/m2 IDA for one day (day 1) in combination with 60 mg/m2/12h cytarabine as a SC infusion for five days (day 1 to 5). No G-CSF support was given after these six courses. Intensive post-remission therapy required another hospitalization and was a repetition of the first 4+7 induction administered at the same doses and followed by G-CSF administration as well.