Event Brief
Dec 29, 2025 at 3:02 PM ET
Biotech Stocks Plummet After Disappointing Study Results
By The BriefBrief
Ultragenyx and Mereo BioPharma face record selloffs due to trial failures.
WHO: Ultragenyx, Mereo BioPharma
WHAT: Disappointing trial results for setrusumab
WHEN: Dec 28, 2025 at 7:00 PM ET
WHERE: Global
WHY: Shocking results from brittle-bone treatment study
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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