AML is a heterogenous disease characterized by uncontrolled clonal expansion of hematopoietic progenitor cells (myeloid blasts) in the peripheral blood, bone marrow and other tissues and is the most common type of acute leukemia in adults. JNJ-75276617 is an orally bioavailable, potent, and selective protein-protein interaction inhibitor of the binding between histone-lysine N-methyltransferase 2A ([KMT2A], also called mixed-lineage leukemia 1 [MLL1]; wild-type and fusion) and menin, with activity in leukemic cell lines and primary leukemia patient or patient-derived samples with either KMT2A alterations including gene rearrangements (KMT2A-r), duplications, and amplification, or nucleophosmin 1 gene (NPM1) alterations. The aim of this study is to determine the RP2D(s), safety, pharmacokinetic, pharmacodynamic and preliminary clinical activity of JNJ-75276617 in combination with AML directed therapies for adult participants with relapsed/refractory or newly diagnosed AML with NPM1 or KMT2A gene alterations and will include dose selection and subsequent combination specific dose expansion. The total study duration will be up to 2 years. Safety evaluations include adverse events (AE) monitoring, clinical laboratory tests, electrocardiograms (ECGs), vital sign measurements, physical examination findings, and eastern cooperative oncology group (ECOG) performance status score.
The purpose of this study is to determine the recommended Phase 2 dose (RP2D) candidate(s) of JNJ-75276617 in combination with AML directed therapies (dose selection) and further to evaluate safety and tolerability of JNJ-75276617 in combination with AML directed therapies at the RP2D(s) (dose expansion).