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Sanofi, Bristol shake up alliance as patents end

PARIS, Oct 3 (Reuters) - Drugmakers Sanofi and Bristol-Myers Squibb said they plan to restructure their alliance from Jan. 1 to respond to the loss of exclusivity on two key drugs and the arrival of generic competition in many major markets.

The move will see Bristol-Myers return rights to blood clot preventer Plavix and blood pressure treatment Avapro to the French drugmaker in all markets, the companies said in a joint statement on Wednesday.

This will give Sanofi sole commercial control of the two treatments, although Bristol-Myers will keep rights to Plavix in the United States and Puerto Rico.

In return, Sanofi will pay Bristol-Myers royalty payments through 2018 on its sales of branded and unbranded Plavix worldwide, excluding the U.S. and Puerto Rico, and on sales of Avapro/Avalide.

Sanofi will also make a $200 million terminal payment to Bristol-Myers at the end of 2018, the companies said.

Plavix had been the world's second-biggest selling prescription medicine for several years with annual revenue reaching about $9 billion at its peak.

(Reporting by James Regan; Editing by David Cowell)

((james.regan@thomsonreuters.com)(+33)(0)(1 49 49 53 84)(Reuters Messaging: james.regan.thomsonreuters.com@reuters.net))

Keywords: SANOFI BRISTOLMYERS/

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