Xenon: X-TOLE2 Fase 3 azetukalner alcanza el criterio de valoración principal en FOS
El ensayo X-TOLE2 Fase 3 alcanzó su criterio de valoración principal con un cambio porcentual medio del -53,2 % en la frecuencia mensual de crisis de inicio focal para la dosis de 25 mg frente al -10,4 % del placebo. La compañía planea ahora presentar una NDA a la FDA en el tercer trimestre de 2026.
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Exhibit 99.1
Xenon Announces Positive Topline Data from Phase 3 X-TOLE2 Study of Azetukalner
in Focal Onset Seizures (FOS)
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X-TOLE2 met primary endpoint in both dose groups, including -53.2%
median percent change (MPC) from baseline in monthly FOS frequency with 25 mg dose compared with -10.4% for placebo (p=0.000000000006)
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X-TOLE2 outperformed Phase 2b
X-TOLE study, with a placebo-adjusted MPC of -42.7% in 25 mg group in X-TOLE2 compared to -34.6% in 25 mg group in X-TOLE
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Azetukalner was generally well-tolerated with a safety profile consistent with
X-TOLE study
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Xenon anticipates submitting New Drug Application for azetukalner in FOS to the U.S. FDA in Q3 2026
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X-TOLE2 data to be featured in Late Breaking Science oral presen