Syndax Pharma Filing NDA for Revumenib

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Syndax Pharmaceuticals says it will file later this month an NDA for revumenib, a first-in-class menin inhibitor for treating patients with relapsed/refractory (R/R) KMT2A-rearranged (KMT2Ar) acute myeloid leukemia (AML) and acute lymphoid leukemia (ALL).

The decision to file the submission is based on “positive data” from the pivotal AUGMENT-101 trial showing a complete remission (CR) or a CR with partial hematological recovery (CRh) rate of 23%. “In the efficacy-evaluable patients, the overall response rate was 63% (36/57; 95% CI: [49.3, 75.6]), and the composite response rate (CRc) was 44% (25/57),” the company says. “Minimal residual disease (MRD) status was assessed in 22 of the 25 patients who achieved a CRc, 68% (15/22) of whom were MRD negative. Responses were observed in all major subgroups, including across the number of prior treatments and prior stem cell transplant.”

Syndax says revumenib was well tolerated and the safety profile was consistent with previously reported data. “Treatment-related adverse events (TRAEs) leading to dose reductions and treatment discontinuation were low at 9% (8/94) and 6% (6/94), respectively,” it adds.

Revumenib is described as a potent, selective, small molecule inhibitor of the menin-KMT2A binding interaction that is being developed for treating KMT2A-rearranged, also known as mixed lineage leukemia rearranged or MLLr, acute leukemias including ALL and AML, and NPM1-mutant AML.

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