Xenon Pharmaceuticals Inc., a neuroscience-focused biopharmaceutical company, engages in the discovery, development, and delivery of therapeutics to treat patients with neurological and psychiatric disorders in Canada. Its product candidates include Azetukalner, a selective Kv7 potassium channel opener in Phase 3 clinical development for the treatment of epilepsy, including focal onset seizures, and primary generalized tonic-clonic seizures, as well as neuropsychiatric disorders, such as major depressive disorder and bipolar depression. The company has a license and collaboration agreement with the Neurocrine Biosciences, Inc. for the development of NBI-921352, a Nav1.2/1.6 sodium channel inhibitor that is in Phase 1 clinical trials for the treatment of certain types of epilepsy.