Biogen, Denali scrap Parkinson's drug after failure in mid-to-late stage study

Denali Therapeutics Inc.
Biogen Inc.

Denali Therapeutics Inc.

DNLI

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Biogen Inc.

BIIB

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- Biogen BIIB.O and Denali Therapeutics DNLI.O said on Thursday they will discontinue development of their Parkinson's drug it failed to meet the main goal in a mid-to-late stage study.