Safety and Tolerability of Ziftomenib Combinations in Patients With Relapsed/Refractory Acute Myeloid Leukemia

Key Inclusion Criteria: * Has been diagnosed with relapsed/refractory AML. * Has a documented NPM1 mutation or KMT2A rearrangement. * Has a documented FLT3 mutation (cA-3 only). * Has an Eastern Cooperative Oncology Group (ECOG) Performance status ≤ 2. * Has adequate hepatic and renal function as defined per protocol. * Has an ejection fraction above a protocol defined limit. * Participant, or legally authorized representative, must be able to understand and provide written informed consent prior to the first screening procedure. * Has agreed to use contraception as defined per protocol. Key Exclusion Criteria: * Has a diagnosis of acute promyelocytic leukemia or blast chronic myeloid leukemia. * Has clinically active central nervous system leukemia. * Has an active and uncontrolled infection. * Has a mean corrected QT interval (QTcF) \> 480ms. * Has uncontrolled intercurrent illness, including, but not limited to protocol defined cardiac disease. * Has received radiation, chemotherapy, immunotherapy, or any other anticancer therapy including investigational therapy \<14 days or within 5 drug half-lives prior to the first dose of study intervention. * Has had major surgery within 4 weeks prior to the first dose of study intervention. * Has received a hematopoietic stem cell transplant (HSCT) and has not previously had adequate recovery per protocol defined criteria. * Has active graft-versus-host disease (GvHD) and or on immunosuppressive drugs for the treatment of GvHD * Participant is pregnant or lactating.