Study of Azacitidine Combined With Homoharringtonie Based Regimens in AML

Rencent years have witnessed great progress of the treatment of acute myeloid leukemia (AML). However, most patients have poor outcomes following the currently first-line DA(daunorubicin, cytarabine)/IA(Idarubicin, cytarabine) chemotherapy, espiecially for the older patients and those not eligiable for receiving allo-HSCT. Azacitidine (AZA)，a hypomethylating agent, targets epigenetic gene silencing by inhibiting gene expression against malignant phenotypes and is currently approved to treat AML based on the NCCN guidelines. The homoharringtonie (HHT) could induce AML cell lines and primary myeloid leukemia cell apoptosis, and the effect was dose dependent. While, HHT could also induce leukemia cells to differentiate into normal state, eventually achieve the goal of treatment, and control the disease. The investigators conducted a clinical study to evaluate the efficacy and safety of the AZA plus HAG(homoharringtonie, cytarabine, G-CSF), HIA(homoharringtonie, Idarubicin, cytarabine)/HDA(homoharringtonie, daunorubicin, cytarabine). This study is aimed to demonstrate the efficacy and safety advantages of the regimens that cotain homoharringtonie and azacitidine.