Wednesday, December 28, 2011

Clnical Trials


Drug Trials Not Representative, Researchers Charge

By Emily P. Walker, Washington Correspondent, MedPage Today
Published: December 27, 2011
Few major randomized, controlled clinical trials examine the effects of a drug in patients who have multiple chronic conditions, even though more than one-quarter of all Americans are living with at least two chronic health conditions, researchers reported.
The proportion is even greater for older individuals, two out of three of whom are likely to have at least two chronic health conditions, according to Alejandro Jadad, MD, and colleagues from the Centre for Health, Wellness and Cancer Survivorship at the University Health Network in Toronto.
That means that most trials on which the FDA bases its approval of new drugs are not generalizable to the U.S. population, they wrote in a research letter published in the Dec. 28 issue of the Journal of the American Medical Association./.../

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