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In surprise result, Alzheimer’s drug shows benefit in large trial

September 28, 2022


An experimental Alzheimer’s disease drug developed by Eisai and Biogen succeeded in a large Phase 3 trial, raising its chances for regulatory approval and boosting a long-running hypothesis about how to treat the most common cause of dementia.

Trial results showed treatment with the drug, called lecanemab, slowed clinical decline by 27% compared to a placebo over an 18-month period, the companies said in a Tuesday statement. Alzheimer’s symptoms were measured on a commonly used rating scale that assesses cognitive and functional performance.

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