Sanofi Stumbles After Drug Setback

Sanofi-Aventis (SNY Quote) saw its shares sag Tuesday on the heels of disappointing regulatory news about the French company's experimental drug Acomplia.

On Friday, after the markets had closed, Sanofi-Aventis said the Food and Drug Administration rejected Acomplia as a smoking-cessation treatment and gave conditional approval for the drug as a weight-loss medication.

In a three-sentence press release, the company didn't identify the conditions or set a timetable for meeting the conditions. "Sanofi-Aventis will continue to work in close collaboration with the FDA," the company said. ...