XEN1101, A Differentiated KV7 Potassium Channel Modulator for the Treatment of Epilepsy
We are developing XEN1101, a differentiated Kv7 potassium channel modulator, for the treatment of epilepsy and potentially other neurological disorders.
The Kv7 potassium channel mechanism has been clinically validated with ezogabine, an earlier generation Kv7 modulator that was approved by the FDA as an adjunctive treatment for adults with focal seizures with or without secondary generalization. XEN1101’s unique composition is chemically designed to improve upon potency, selectivity and pharmacokinetics, or PK, of ezogabine, and is not expected to have ezogabine’s composition-specific tissue pigmentation effects.
As part of a strategy to continue to expand the intellectual property protecting XEN1101, Xenon recently obtained allowance of a U.S. patent application with claims directed to four distinct crystalline forms of XEN1101, pharmaceutical compositions comprising the same, and methods of preparing and using the same. Any patent issuing from this allowed application is expected to expire in Q4 2040.
At ASENT 2021, the virtual annual meeting of the American Society for Experimental Neurotherapeutics, Xenon presented new pre-clinical data combining XEN1101 with commercially approved anti-seizure medications (ASMs) – including lacosamide, levetiracetam, cenobamate, phenytoin, and valproic acid – showing that combining sub-efficacious doses of XEN1101 and other ASMs provided robust efficacy in animal models. This pre-clinical work suggests that XEN1101 may be well suited for use as a monotherapy or applied in a rational polypharmacy setting to treat seizures.