Acute myeloid leukemia (AML) is a heterogeneous disease characterized by uncontrolled clonal expansion of hematopoietic progenitor cells (myeloid blasts) in the peripheral blood, bone marrow, and other tissues. Acute lymphoblastic leukemia (ALL) is a hematologic malignancy propagated by impaired differentiation, proliferation, and accumulation of lymphoid progenitor cells in the bone marrow and/or extramedullary sites. 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 primary goal of this FIH study is to establish the recommended Phase 2 dose (RP2D) of JNJ-75276617 with an acceptable safety profile. The total duration of the study is up to 2 years and 10 months. Safety assessment will include adverse events (AEs), serious adverse events (SAEs), physical examination, Eastern Cooperative Oncology Group (ECOG) performance status, vital signs, electrocardiogram, clinical safety laboratory assessment and pregnancy testing.
The purpose of this study is to determine the recommended Phase 2 dose(s) (RP2D[s]) of JNJ-75276617 in Part 1 (Dose Escalation) and to determine safety and tolerability at the RP2D(s) in Part 2 (Dose Expansion).