FDA Lifts Hold on Kura Leukemia Trial
FDA has lifted a partial clinical hold on a Kura Oncology Phase 1b study (KOMET-001) of KO-539 in patients with relapsed or refractory acute myeloid leukemia (AML). The hold was the result of the company’s recent report to the agency about a Grade 5 serious adverse event (patient death) “potentially associated with differentiation syndrome, a known adverse event related to differentiating agents in the treatment of AML,” according to the company. KO-539 is described as a potent and selective menin inhibitor.
Kura says the hold was lifted following agreement with FDA on the company’s mitigation strategy for differentiation syndrome. “Activities to resume patient screening are underway, and we look forward to expediting enrollment of patients in the Phase 1b study and determining the recommended Phase 2 dose for KO-539 in the coming months,” it says. “Meanwhile, we continue to be encouraged by the safety, tolerability and clinical activity observed among currently enrolled patients and look forward to sharing a comprehensive update on the Phase 1 study at a future medical meeting.”