Biogen halts study of Alzheimer's drug, a blow to hopes for new treatment - STAT

1. Biogen halts study of Alzheimer's drug, a blow to hopes for new treatment  STAT
2. Stocks making the biggest moves premarket: Biogen, Boeing, Walmart, Apple, Clorox & more  CNBC
3. Biogen Shares Plunge After Alzheimer’s Drug Setback  Bloomberg
4. Biogen Loses $18 Billion in Market Value After Ending Alzheimer’s Trials  The Wall Street Journal
5. Biogen heads for the worst day in a decade after ending trial for blockbuster Alzheimer's drug  CNBC
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