Kura Oncology, Inc. announced that the first patients have been dosed in its KOMET-001 Phase 2 registration-directed trial of ziftomenib, the Company's novel menin inhibitor, in patients with NPM1-mutant relapsed or refractory acute myeloid leukemia (AML). In the Phase 1 clinical trial, ziftomenib showed as of the data cutoff on October 24, 2022, a 30% complete response (CR) rate among 20 NPM1-mutant AML patients treated at 600 mg. In addition, the favorable safety profile and encouraging tolerability at the 600 mg daily dose resulted in its designation as the recommended Phase 2 dose following a positive Type C meeting with the U.S. Food and Drug Administration (FDA).

The primary endpoint in the Phase 2 registration-directed trial in patients with NPM1-mutant relapsed or refractory AML, is CR or complete response with hematologic recovery (CRh), and key secondary endpoints include clinical benefit as well as safety and tolerability. In addition to continued evaluation of ziftomenib as a monotherapy in NPM1-mutant AML, Kura plans to initiate the KOMET-007 and KOMET-008 trials later this year to evaluate ziftomenib in combination with current standards of care in earlier lines of therapy and across multiple patient populations, including NPM1-mutant and KMT2A-rearranged AML.