Biogen Closes The Book On The Aduhelm Saga

Biogen will end the development and commercialization of Aduhelm, the first anti-amyloid antibody drug to reach the US market for Alzheimer’s, including the confirmatory ENVISION trial.

closed book
Biogen is ending development and commercialization of Aduhelm • Source: Shutterstock

Biogen, Inc.'s decade-long Aduhelm (aducanumab) story line took many twists and turns over the course of its development, capturing national attention in 2021 when the drug became the first anti-amyloid antibody to reach the US market for Alzheimer's disease on scant efficacy evidence and quickly fading from the spotlight when the hyped commercial launch failed and a second anti-amyloid drug fromEisai Co., Ltd. and Biogen, Leqembi (lecanemab), gained full approval from the US Food and Drug Administration in 2023.

Key Takeaways
  • Biogen will discontinue the development and commercialization of Aduhelm, including the ongoing Phase IV confirmatory trial ENVISION.
  • Biogen took a $60m charge in the fourth quarter to close out the costs of the Aduhelm program, a small cost compared to the steep bill Biogen has already put toward the development and commercialization

Now, without any fanfare and as many industry watchers and investors expected, Biogen announced on 31 January that it will discontinue the development and commercialization of

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