The Novo Nordisk A/S headquarters in Bagsvaerd, Denmark, on Wednesday, Nov. 5, 2025.

Nichlas Pollier | Bloomberg | Getty Images

Shares of Novo Nordisk on Monday fell as much 11% after the Danish drug pharmaceutical company said a highly-anticipated trial for Alzheimer’s disease failed to meet its main goal.

The trial tested whether semaglutide — the active ingredient in Novo’s blockbuster diabetes and weight loss drugs Ozempic and Wegovy — helped slow progression for Alzheimer’s disease.

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