FDA Approves Marinus’ Ztalmy for Rare Epilepsy

FDA has approved Marinus Pharmaceuticals’ Ztalmy (ganaxolone) oral suspension to treat seizures associated with cyclin-dependent kinase-like 5 deficiency disorder (CDD), a rare form of genetic epilepsy in patients age 2 and older. The company says it is the first FDA-approved treatment specifically in CDD.

Ztalmy’s approval was based on data from the Phase 3 Marigold trial in which patients treated with the drug showed a median 30.7% reduction in 28-day major motor seizure frequency, compared to a median 6.9% reduction for those receiving placebo.

The drug is described as a neuroactive steroid that acts as a positive allosteric modulator of the GABA receptor.

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