Summary Box: Crestor study backfires on maker

AP News
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Posted: Sep 02, 2011 1:42 PM
Summary Box: Crestor study backfires on maker

THE GAMBLE: British drugmaker AstraZeneca PLC, hoping to avert a big drop in sales of top seller Crestor when generic versions of rival cholesterol drug Lipitor arrive, funded a two-year patient study aiming to show Crestor was better at reducing plaque in heart arteries.

THE RESULT: The study found the two drugs are about equally effective.

THE IMPACT: Analysts said the study, the first comparing Crestor directly to a competing drug, will add to pressure on Crestor sales once generic Lipitor versions hit in the U.S. on Nov. 30.