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Xenon Pharmaceuticals Shares Surge on Positive Study Data for Azetukalner

Provided by Dow Jones Mar 9, 2026, 4:12:00 PM

By Adriano Marchese

Xenon Pharmaceuticals shares rose after the company said it received positive data from its study of its investigational treatment for focal onset seizures.

Shares rose 46.5% to $61.45.

The biopharmaceutical company said Monday that the Phase 3 X-TOLE2 study of azetukalner met its primary endpoint in both the 25 milligram and 15 milligram doses, compared with the placebo group.

The drug also showed a favorable safety profile.

Xenon said it plans to submit a new drug application to the U.S. Food and Drug Administration in the third quarter.

Write to Adriano Marchese at adriano.marchese@wsj.com

(END) Dow Jones Newswires

March 09, 2026 12:12 ET (16:12 GMT)

Copyright (c) 2026 Dow Jones & Company, Inc.

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