Pushing past the placebo: Legislating for a new kind of clinical trials

From amednews.com:

In January, a study published in the Journal of the American Medical Association on the first two commercially available drug-eluting stents found no significant differences in clinical outcomes.

In August, a report in the New England Journal of Medicine concluded that patients with stable angina who underwent percutaneous coronary intervention showed slightly more improvement over those treated with medication. But that added benefit disappeared by 36 months.

Then in September, a study in the NEJM found that arthroscopic surgery for osteoarthritis of the knee provided no additional benefit over physical and drug therapy.

What these very different studies have in common is that they compare the effectiveness of one treatment option with another instead of on its own. Although more of this type of research is being conducted than ever before, physicians, insurers and consumer groups widely agree that not enough comparative-effectiveness data exist on pharmaceuticals, medical devices and procedures.

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