Phase 1-2 Study of ASTX660 in Subjects With Advanced Solid Tumors and Lymphomas

ASTX660 is a synthetic small molecule dual antagonist of cellular inhibitor of apoptosis protein (cIAP) 1 and X-linked inhibitor of apoptosis protein (XIAP) that has been shown to have potent proapoptotic and tumor growth inhibitory activity in nonclinical models. The Phase 1 portion of the study (completed) will determine the MTD, RP2D, and recommended dosing regimen. The Phase 2 portion will evaluate activity in selected tumor types. Subjects will continue to receive their assigned treatment throughout the study until the occurrence of disease progression, death, or unacceptable treatment-related toxicity, or until the study is closed by the sponsor.