Kura Oncology and Kyowa Kirin Announce FDA Acceptance and Priority Review of New Drug Application for Ziftomenib in Adults with Relapsed or Refractory NPM1-Mutant AML

Core Viewpoint - Kura Oncology and Kyowa Kirin have announced the acceptance of a New Drug Application (NDA) for ziftomenib by the FDA, targeting adult patients with relapsed or refractory acute myeloid leukemia (AML) with an NPM1 mutation, with a PDUFA target action date set for November 30, 2025 [1][2] Company Overview - Kura Oncology is a clinical-stage biopharmaceutical company focused on precision medicines for cancer treatment, with a pipeline of small molecule drug candidates [7] - Kyowa Kirin is a Japan-based global specialty pharmaceutical company with over 70 years of experience in drug discovery and biotechnology innovation [8] Drug Development - Ziftomenib is an investigational menin inhibitor that has received Breakthrough Therapy Designation (BTD), Fast Track, and Orphan Drug Designations from the FDA for the treatment of adult patients with R/R AML with an NPM1 mutation [3][6] - The NDA is based on positive results from the Phase 2 KOMET-001 trial, which achieved its primary endpoint of complete remission and demonstrated a favorable safety profile with limited myelosuppression [2][3] Clinical Trial Insights - The KOMET-001 trial is designed to assess the clinical activity, safety, and tolerability of ziftomenib, and full data analyses will be presented at the 2025 ASCO Annual Meeting and the 2025 EHA Congress [3][4] - Adult patients with R/R NPM1-m AML have a poor prognosis, with only 30% overall survival at 12 months in the relapsed setting, highlighting the urgent need for innovative treatment options [4][5] Market Potential - There are currently no FDA-approved therapies specifically targeting NPM1-m AML, indicating a significant market opportunity for ziftomenib if approved [5][6]