Biogen reanalyzes studies, presses ahead on Alzheimer's drug

FILE - In this Aug. 14, 2018 file photo, Dr. William Burke goes over a PET brain scan at Banner Alzheimers Institute in Phoenix. The drug company Biogen Inc. says it will seek federal approval for a medicine to treat early Alzheimer's disease, a landmark step toward finding a treatment that can alter the course of the most common form of dementia. The announcement Tuesday, Oct. 22, 2019, is a surprise because the company earlier this year stopped two studies of the drug, called aducanumab, after partial results suggested it was not working.

Biogen Inc. said Tuesday it will seek federal approval for a medicine to treat early Alzheimer's disease, a landmark step toward finding a treatment that can alter the course of the most common form of dementia.

The announcement was a surprise because the drug company earlier this year stopped two studies of the drug when partial results suggested it was not likely to be successful. The company now says a new analysis of more results suggest that the drug helped reduce a decline of thinking skills at the highest dose.

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