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Xenon Plans Q1 2027 Azetukalner Study With $1.2 Billion in Cash and Securities
Xenon submitted a new drug application for focal seizures in Q3 2026; topline results from X-NOVA2 are expected in December.

Xenon Pharmaceuticals plans to begin a Phase 3b/4 study of azetukalner in Q1 2027 as it pursues U.S. approval for focal seizures after filing a new drug application in Q3 2026.
Xenon ended Q3 with $1.2 billion in cash, cash equivalents and marketable securities. The company expects those resources to fund operations into 2029 under current plans.
Xenon expects topline results from X-NOVA2, a study in major depressive disorder (MDD), in December 2026.