FDA OKs Syndax Pharm Leukemia Drug

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Six weeks ahead of its user fee review action target date, FDA has approved a Syndax Pharmaceuticals NDA for Revuforj (revumenib), a menin inhibitor for treating relapsed or refractory acute leukemia with a lysine methyltransferase 2A gene (KMT2A) translocation in adult and pediatric patients aged one year and older.

Approval was based on data from a single-arm cohort of an open-label, multicenter trial (SNDX-5613-0700, NCT04065399) in 104 adult and pediatric patients (at least 30 days old), an FDA release says. “The main efficacy outcome measures were complete remission (CR) plus CR with partial hematologic recovery (CRh), the duration of CR+CRh, and conversion from transfusion dependence to independence,” it says. “The CR+CRh rate was 21.2% (95% CI: 13.8, 30.3), and the median CR+CRh duration was 6.4 months (95% CI: 2.7, not estimable).”

Regarding safety, FDA says the most common adverse reactions were hemorrhage, nausea, increased phosphate levels, musculoskeletal pain, infection, increased aspartate aminotransferase, febrile neutropenia, increased alanine aminotransferase, increased intact parathyroid hormone, bacterial infection, diarrhea, differentiation syndrome, electrocardiogram QT prolonged, decreased phosphate, increased triglycerides, decreased potassium, decreased appetite, constipation, edema, viral infection, fatigue, and increased alkaline phosphatase.

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