Study drugs have been done a series of pharmacology, toxicity and animal testing before clinical trials.

试验用药在开始用于人的临床试验之前会进行一系列的药理学、毒性以及动物试验。

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This presentation belies one of the stated goals of NAVIGATOR — specifically, to study the combined effects of the two study drugs.

这一说法掩盖了一个既定的研究目标， 具体而言是研究两种药物的综合作用。

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In two thousand eight, the Journal of the American Medical Association published a study of unplanned deaths from prescription drugs.

VOA: special.2011.07.19

But a recent study shows that another treatment may have better results for patients who were not helped by drugs.

VOA: special.2010.03.02

The findings made it possible to better study pain drugs and learn how they affect the body.

VOA: special.2009.02.10

This analysis, however, only included the time while patients were actually taking the study drugs.

FORBES: JNJ's Solid Win

This can motivate companies to study drugs against untreatable diseases first, in the hopes that once a medicine is approved, doctors will start prescribing it for other indications, increasing sales.

FORBES: InterMune Gets Around The FDA

"Afinitor is another example of the value of continuing to study drugs in additional types of cancer after their initial approval, " said Dr. Richard Pazdur, director of the FDA's cancer drug office.

MSN: FDA approves Afinitor for some breast cancers