Rumors fly but hurdles remain to Sanofi, Bristol deal

By Ben Hirschler and Ransdell Pierson

LONDON/NEW YORK (Reuters) - A court ruling upholding the patent on blockbuster blood-thinning drug Plavix has reignited talk France's Sanofi-Aventis (SASY.PA) will bid for its smaller U.S. partner Bristol-Myers Squibb Co. (BMY.N).

The Plavix ruling by a U.S. judge on Tuesday handed a major victory to Bristol-Myers and Sanofi, which are partners on the multibillion-dollar blood clot-preventing drug. The long-awaited ruling blocks sales of generic Plavix.

The trans-Atlantic takeover would boost Paris-based Sanofi's weakened new drug pipeline and allow significant cost savings. But serious obstacles remain to any deal, analysts said, such as differences between top executives at the firms.

Recent partnership deals by Bristol-Myers for some of its promising experimental drugs also may indicate the New York-based company now is seeking to go it alone.

The idea of a combination to forge the world's biggest drugmaker is not new and is widely believed by analysts to have the support of Sanofi's powerful chairman, Jean-Francois Dehecq.

Chief Executive Gerard Le Fur, however, is said to be cool to the idea -- though Le Fur's go-it-alone stance may have been undermined since the rejection of Sanofi's key obesity drug Acomplia, also known as Zimulti, by a U.S. advisory panel.

"I think Dehecq wants Bristol on board and Le Fur doesn't," said Paul Diggle, an analyst at Nomura Code Securities in London. "But Le Fur's argument for not bidding is that he has a world-class pipeline -- well, for the third-biggest drug company in the world, it is not world class any more."

Sanofi declined to comment on the takeover speculation.

Bristol management, meanwhile, is under less pressure to sell out, as sales mount for newer drugs such as its Abilify drug for schizophrenia, Orencia for rheumatoid arthritis and Sprycel for cancer.

"The 10 percent risk that Sanofi and Bristol might have lost this (Plavix) case has now dried to dust, and now strengthens the opportunity for management at Bristol to reassess an independent future," said Viren Mehta, a principal at healthcare investment firm Mehta Partners in New York.

Mehta puts Bristol in the "top quartile" of U.S. drugmakers in terms of new products being launched, giving it a good chance of having a viable independent future.

The fact that the company has signed deals involving experimental drugs in recent months with AstraZeneca Plc (AZN.L) and Pfizer Inc. (PFE.N) may also suggest Bristol CEO James Cornelius is not that keen to surrender independence.

Bristol in April said Pfizer agreed to help develop and sell its blood-clot preventing drug apixaban. In January, AstraZeneca agreed to partner on two Bristol diabetes drugs.

Aurel Leven analyst Jerome Berton said the fact that some of Bristol's interesting products had already been licensed out undercut its value as a pipeline-booster for Sanofi.

So could Sanofi make a Bristol takeover deal work?