Combination Chemotherapy (FLAG-Ida) With Pivekimab Sunirine (PVEK) for the Treatment of Newly Diagnosed Adverse Risk Acute Myeloid Leukemia and Other High-Grade Myeloid Neoplasms

Inclusion Criteria: * Age ≥ 18 years * Diagnosis of untreated AML other than acute promyelocytic leukemia (APL) with t(15;17)(q22;q12) or variants according to the 5th edition of the World Health Organization (WHO) classification of hematolymphoid tumors. Patients with myelodysplastic, myeloproliferative, or myelodysplastic/myeloproliferative neoplasms and ≥ 10% blasts in blood and/or bone marrow, are also eligible, as are patients with mixed phenotype acute leukemia (MPAL). Outside diagnostic material is acceptable to establish diagnosis; submission of peripheral blood specimen for flow cytometry performed at the study institution should be considered. Diagnostic material must have been submitted for cytogenetic and/or molecular testing as clinically appropriate * Cytogenetically/molecularly adverse-risk disease (European LeukemiaNet \[ELN\] 2022 criteria) * Expression of CD123 on immunophenotypically abnormal blasts, as assessed by local multiparameter flow cytometry. Evaluation of CD123 expression via immunohistochemistry is permissible, for example if flow cytometric assessment is not available * Medically fit, as defined by treatment-related mortality (TRM) score ≤ 13.1 calculated with simplified model * The use of hydroxyurea prior to start of study therapy is allowed. Patients with symptoms/signs of hyperleukocytosis, white blood cell count (WBC) \> 100,000/μL or with concern for other complications of high tumor burden (e.g. disseminated intravascular coagulation) ca…