Zinbryta Global Withdrawal Driven In Part By Difficulty Of Safety Assessment

EMA safety investigation pushes decision as AbbVie, Biogen acknowledge 'characterizing the evolving benefit/risk profile … will not be possible going forward given the limited number of patients being treated.'

Vintage looking Withdrawn stamp on a book page

The withdrawal of the multiple sclerosis drug Zinbryta (daclizumab) from worldwide marketing by Biogen Inc. and US marketing partner AbbVie Inc. underscores how difficult safety can be to assess, even in limited patient populations.

Biogen and AbbVie announced the decision to withdraw Zinbryta on March 2 as the European Medicines Agency announced that it...

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