Liposomal Cytarabine and Daunorubicin (CPX-351) and Quizartinib for the Treatment of Acute Myeloid Leukemia and High Risk Myelodysplastic Syndrome

Inclusion Criteria: * Diagnosis of 1) AML (World Health Organization \[WHO\] classification definition of \>= 20% blasts, excluding acute promyelocytic leukemia \[APL\]), or 2) high risk MDS (\> 10% bone marrow blasts) * For frontline cohort: Patients aged \>= 60 years old * For relapsed or refractory cohort: Patients aged \>= 18 years old * For frontline cohort: Patients must be chemonaive, i.e., not have received any chemotherapy (except hydrea or 1-2 doses of ara-C for transient control of hyperleukocytosis) for AML or MDS. They may have received transfusions, hematopoietic growth factors or vitamins for an antecedent hematological disorder (AHD) or for AML. Temporary prior measures such as apheresis, ATRA (all-trans retinoic acid), steroids or hydrea while diagnostic work-up is being performed are allowed and not counted as a prior salvage. Supportive care therapy for MDS (growth factors, transfusions) will not be considered as prior therapy for MDS/AML and these patients will be enrolled to the frontline cohort of the study if they are otherwise eligible * For relapsed or refractory cohort: Patients who have received at least one prior therapy for AML or for MDS (with \> 10%) blasts will be eligible. Patients may have received up to 4 salvage regimens for AML and/or MDS (defined by the International Prognostic Scoring System \[IPSS\] classification). Patients who receive MDS directed therapies considered not purely supportive such as hypomethylating agents (HMAs), lenal…