Biogen Inc. received a big boost on Wednesday after U.S. Food and Drug Administration regulators appeared to give a positive assessment of the company’s experimental Alzheimer’s disease drug, sending shares up 44%.

The biotech giant is at a crossroads as it seeks regulatory approval for its potential blockbuster Alzheimer’s drug aducanumab, while facing down generic competition to its biggest-selling treatment.

Soon…

This post first appeared on wsj.com

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