• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Healthallergan-pfizer deal

Allergan Struck a $3.3 Billion Alzheimer’s Drug Deal Right After Its Pfizer Merger Collapsed

By
Sy Mukherjee
Sy Mukherjee
Down Arrow Button Icon
By
Sy Mukherjee
Sy Mukherjee
Down Arrow Button Icon
April 7, 2016, 6:25 PM ET
The CEO of Valeant Pharmaceuticals has suggested that Allergan is fat, overstaffed and ripe for big
Photo by Don Bartletti — LA Times via Getty Images

Allergan (AGN) wasted little time resting on its laurels after the implosion of its historic $160 billion proposed megamerger with Pfizer (PFE). On Wednesday, just hours after the firms dissolved the deal, Allergan announced a significant licensing pact with the U.K.’s Heptares Therapeutics for its Alzheimer’s drug portfolio.

The tale of the ill-fated Pfizer-Allergan engagement is well-known by now. An Obama administration intent on blocking tax domicile-shifting corporate inversion issued new Treasury Department rules which would have made it particularly difficult for the drugmakers’ union to pass regulatory muster. That’s thrown a wrench into a number of Wall Street and hedge funds’ plans and forced to Pfizer and Allergan to quickly map out their next moves.

Allergan and CEO Brent Saunders have apparently decided to make those moves on an accelerated schedule in an effort to bolster its clinical pipeline.

The Heptares deal is wide-ranging and could eventually be worth upwards of $3.3 billion. It includes a $125 million upfront payment from Allergan which will give the pharma giant access to certain investigational neurodegenerative disease-related compounds discovered using Heptares’ StaR tech platform. Eventually, Allergan could have to shell out another $665 million in milestone payments for clearing more tangible clinical development thresholds and $2.5 billion for downstream sales.

Allergan and Heptares hope that the investigational compounds involved in this deal will eventually lead to therapies which treat neurobehavioral and cognitive decline symptoms associated with Alzheimer’s.

While this is a swift and decisive move for Allergan in a post-Pfizer future, it’s also a bit of a risky bet given the precarious history of Alzheimer’s drug development. A number of companies including Eli Lilly (LLY) and Biogen (BIIB) have poured significant resources into Alzheimer’s and neurodegenrative disease drug development in the past year, and it’s not entirely clear those gambles will pay off.

About the Author
By Sy Mukherjee
See full bioRight Arrow Button Icon

Latest in Health

Workplace CultureSports
Exclusive: Billionaire Michele Kang launches $25 million U.S. Soccer institute that promises to transform the future of women’s sports
By Emma HinchliffeDecember 2, 2025
17 hours ago
North Americaphilanthropy
Anonymous $50 million donation helps cover the next 50 years of tuition for medical lab science students at University of Washington
By The Associated PressDecember 2, 2025
23 hours ago
Trump
PoliticsWhite House
Trump had MRI on heart and abdomen and it was ‘perfectly normal,’ doctor says
By The Associated PressDecember 2, 2025
23 hours ago
Medical Glasses
InnovationNews
New FDA-approved glasses can slow nearsightedness in kids
By The Associated Press and Matthew PerroneDecember 1, 2025
2 days ago
Luigi Mangione
LawNews
Luigi Mangione watches footage of cops approaching him at Altoona McDonald’s as courtroom hearings commence
By Michael R. Sisak and The Associated PressDecember 1, 2025
2 days ago
Our testers trying out a Nectar mattress.
Healthmattresses
Best Cyber Monday Mattress Deals of 2025: Saatva, Helix, and More
By Christina SnyderDecember 1, 2025
2 days ago

Most Popular

placeholder alt text
Economy
Ford workers told their CEO 'none of the young people want to work here.' So Jim Farley took a page out of the founder's playbook
By Sasha RogelbergNovember 28, 2025
5 days ago
placeholder alt text
Success
Warren Buffett used to give his family $10,000 each at Christmas—but when he saw how fast they were spending it, he started buying them shares instead
By Eleanor PringleDecember 2, 2025
1 day ago
placeholder alt text
North America
Jeff Bezos and Lauren Sánchez Bezos commit $102.5 million to organizations combating homelessness across the U.S.: ‘This is just the beginning’
By Sydney LakeDecember 2, 2025
21 hours ago
placeholder alt text
Economy
Elon Musk says he warned Trump against tariffs, which U.S. manufacturers blame for a turn to more offshoring and diminishing American factory jobs
By Sasha RogelbergDecember 2, 2025
19 hours ago
placeholder alt text
C-Suite
MacKenzie Scott's $19 billion donations have turned philanthropy on its head—why her style of giving actually works
By Sydney LakeDecember 2, 2025
1 day ago
placeholder alt text
North America
Anonymous $50 million donation helps cover the next 50 years of tuition for medical lab science students at University of Washington
By The Associated PressDecember 2, 2025
23 hours ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.