A more definitive study on Avandia’s risks is in jeopardy as patients are starting to drop out:
Dr. Krall said he did not yet know how many patients have withdrawn, but said Glaxo was now worried about whether it could complete the drug trial, which has been scheduled to run through next year. The company has been counting on a successful outcome from the study to dispel widespread concerns that Avandia carries a higher risk of heart attacks than other diabetes drugs.








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