Semaglutide Pill Falls Short in Alzheimer's Battle
Tue Nov 25 2025
A recent study has brought disappointing news for those hoping to combat Alzheimer's disease. The drug semaglutide, known for its effectiveness in managing diabetes and obesity, did not show any significant benefits in slowing down the progression of Alzheimer's. This was revealed in two large-scale trials involving over 3, 800 participants who were already receiving standard treatment.
The trials, conducted by Novo Nordisk, focused on an oral version of semaglutide. While the drug proved to be safe and did improve certain biological markers associated with Alzheimer's, it failed to make a difference in memory and cognitive decline compared to a placebo. This outcome was unexpected, given the drug's success in other areas.
Despite the setback, researchers had high hopes. Martin Holst Lange, a key figure at Novo Nordisk, explained that the decision to explore semaglutide's potential was driven by the urgent need for effective Alzheimer's treatments. Previous smaller studies and animal research had suggested that the drug might help reduce brain inflammation and slow cognitive decline. However, the larger trials did not confirm these hopes.
Semaglutide has a strong track record in treating diabetes and obesity, and it has also shown promise in protecting the heart and kidneys, reducing sleep apnea, and potentially aiding in addiction recovery. But when it comes to Alzheimer's, the results are not promising. Novo Nordisk has decided to end a planned one-year extension of the trials, focusing instead on other avenues of research.
The results of these trials have not yet been peer-reviewed or published, but they will be presented at upcoming scientific meetings. This means the scientific community will have the opportunity to scrutinize the findings and potentially explore new directions for Alzheimer's research.
Alzheimer's disease remains a significant challenge, with a pressing need for effective treatments. The failure of semaglutide in these trials highlights the complexity of the disease and the need for continued research and innovation.
https://localnews.ai/article/semaglutide-pill-falls-short-in-alzheimers-battle-97a311e4
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questions
What are the potential reasons why smaller studies and animal research suggested benefits of semaglutide for cognitive decline, while larger trials did not?
What specific biological markers did the oral form of semaglutide improve, and how do these improvements correlate with Alzheimer’s disease progression?
How might the placebo effect have influenced the outcomes of the Phase 3 trials, and what measures were taken to account for it?
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