Independent safety oversight committee
Appears in 1 story · Last updated Sep 18, 2026
As of September 2026: Consulted on the enrollment pause decision
Xenon Pharmaceuticals stopped enrolling new patients in its Phase 3 depression and bipolar disorder trials on September 17 after participants reported neuropsychiatric side effects, including a small number of psychosis cases. The company's stock fell more than 25% the next day.
Updated Sep 18
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