Experimental: Venetoclax Combined With CACAG Regimen

Venetoclax combined with CACAG regimen for newly diagnosed AML. Recipients were randomized and those entering the experimental group received azacytidine, cytarabine,aclacinomycin,chidamide,venetoclax and granulocyte colony-stimulating factor. Azacytidine was used as 75 mg/m2/day from day 1 to day 7. Cytarabine was used as 75-100 mg/m2 bid from day 1 to day 5. Aclacinomycin was used as 20 mg/day on days 1,3,5. Chidamide was used as 30 mg/day on days 1,4,8,11. Venetoclax was used as 400 mg/day from day 1 to day 14;Combined with posaconazole, reduced to 100 mg/day;Combined with voriconazole, reduced to 200 mg/day.Granulocyte colony-stimulating factor was used as 300 μg/day from day 0 until agranulocytosi recovery .

Active_comparator: 3+7 Regimen

Idarubicin+cytarabine(IA) regimen or daunorubicin+cytarabine(DA) regimen for newly diagnosed AML.Recipients were randomized and those entering this group received IA or DA induction chemotherapy. With the IA regimen,recipients received idarubicin(8-10 mg/m2) for three days and cytarabine(75-100 mg/m2, every 12 hrs) for seven days. With the DA regimen,recipients received daunorubicin(60 mg/m2)for three days and cytarabine(75-100 mg/m2,every 12 hrs)for seven days.