Priority Review for Astellas NDA for AML Therapy
FDA has accepted for priority review an Astellas Pharma NDA for gilteritinib for treating adult patients who have relapsed or refractory (resistant to treatment) acute myeloid leukemia (AML) with a FLT3 mutation as detected by an FDA-approved test. “FLT3 mutations impact approximately 30 percent of AML patients and are often associated with poor survival outcomes, the company says. The submission is based on data from the ongoing Phase 3 ADMIRAL trial. The agency has set a user fee review action target date of 11/29.
Astellas says gilteritinib has demonstrated inhibitory activity against FLT3 internal tandem duplication and FLT3 tyrosine kinase domain, two common types of FLT3 mutations that are seen in about one-third of patients with AML. Further, the company says, gilteritinib has also demonstrated inhibition of the AXL receptor in AML cell lines. The company is currently investigating gilteritinib in various AML patient populations through several additional Phase 3 trials.