Sanofi-Aventis (France) Loses Bid to Ditch U.S. Suit on Failed Drug

PARIS, March 31 (Reuters) - Sanofi-Aventis (SASY.PA) lost a bid to dismiss a U.S. lawsuit launched by an investor for allegedly withholding information on its flopped anti-obesity pill Acomplia, which was once seen as a potential blockbuster.