Biogen Plunges After Alzheimer’s Blow, Analysts Downgrade
Pills arranged for a photograph in Tokyo, Japan. (Photographer: Kiyoshi Ota/Bloomberg)

Biogen Plunges After Alzheimer’s Blow, Analysts Downgrade

(Bloomberg) -- Biogen Inc. shares plunged on Monday and analysts braced for further declines after a U.S. Food and Drug Administration advisory panel harshly judged the efficacy of the company’s ex...
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