A Study of BH-30236 in Relapsed/ Refractory Acute Myelogenous Leukemia and Higher Risk Myelodysplastic Syndrome

This is a Phase 1/1b, multi-center, open-label, dose escalation, first-in-human study to evaluate the safety, tolerability, PK, PD, and preliminary anti-leukemic activity of the CLK inhibitor, BH-30236 as a monotherapy or in combination with venetoclax, in adult participants with R/R AML or HR-MDS. The study consists of three parts: Phase 1, Part 1 Dose Escalation - Monotherapy, Phase 1, Part 2 Dose Escalation - Combination with Venetoclax, and Phase 1b Dose Expansion. Phase 1, Part 1 Dose Escalation - Monotherapy is anticipated to enroll approximately 50 participants to evaluate the safety, tolerability, PK, PD, and preliminary anti-leukemic activity of BH-30236, as well as determine the MTD and/or the preliminary recommended dose(s) for expansion (RDEs). Phase 1, Part 2 Dose Escalation - Combination with Venetoclax is anticipated to enroll approximately 48 participants to evaluate the safety, tolerability, PK, PD, and preliminary anti-leukemic activity of BH-30236, as well as determine the MTD and/or the preliminary recommended dose(s) for expansion (RDEs). Phase 1 will follow a Bayesian optimal interval (BOIN) design dose escalation, where participants will receive ascending doses of BH-30236 to determine the recommended RDEs. Phase 1b Dose Expansion will enroll approximately 72 participants to evaluate the safety, tolerability, and preliminary anti-leukemic activity of BH-30236 as a monotherapy or in combination with venetoclax at selected RDEs determined in Phase 1 Dose Escalation.