Newly diagnosed unfit AML and Intermediate,High or Very High Risk Myelodysplastic Syndromes (MDS) as Per IPSS-R Criteria are unable to tolerate the intensive chemo-therapy regimens due to their old age and poor physical condition, resulting in limited overall survival. Nowadays, AZA are recommended for unfit acute myeloid leukemia or myelodysplastic syndromes patients with remission rate of 30%~34%. AZA with or without all-trans retinoic acid (ATRA) can cooperatively inhibit leukemia cell proliferation , induce apoptosis and differentiation.
This is a randomized, open-label, multicenter study to compare the efficacy and safety of AZA with or without ATRA in newly diagnosed unfit AML or Intermediate,High or Very High Risk MDS