Homoharringtonine, Aclarubicin and Cytarabine (HAA) Regimen As the First Course of Induction Therapy is Highly Effective for Acute Myeloid Leukemia with T (8;21)

Homoharringtonine combined aclarubicin and cytarabine (HAA) has been demonstrated to achieve a high remission rate and provide a survival advantage in acute myeloid leukemia (AML). To investigate whether HAA is an ideal induction regimen for t(8;21)AML, we retrospectively analyzed the data of 140 patients from the last 8 years in our center. When achieving complete remission (CR), the post-remission treatment was administered as a minimal residual disease-directed risk-stratification treatment protocol. The RUNX1/RUNX1T1 transcript level was assessed by RT-qPCR. The last follow-up was conducted in October 2015. In total, thirty patients received an HAA regimen as the induction treatment. The CR rate after one cycle of the HAA regimen was 93.3% (28/30). One patient achieved partial remission, and one had no response. No patients died during induction treatment. The median fold decrease of the RUNX1/RUNX1T1 transcript level was 200 (1-358000), and 16.7% (5/30) patients achieved >3 log decrease after one cycle of the HAA regimen. The estimated 4-year disease-free survival and overall survival were 89.9% and 90.8%, respectively. We concluded that the HAA regimen is highly effective as the first course of induction therapy for t(8;21) AML, and this needs to be confirmed in a large population in the future.