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Clinical Research Trials Glossary of Terms

The following are health and medical definitions of terms that appear in the Clinical Research Trials article.

Clinical: 1. Having to do with the examination and treatment of patients. 2. Applicable to patients. A laboratory test may be of clinical value (of use to patients).
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Clinical research trials : Trials to evaluate the effectiveness and safety of medications or medical devices by monitoring their effects on large groups of people.
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Clinical trials: Trials to evaluate the effectiveness and safety of medications or medical devices by monitoring their effects on large groups of people.
See the entire definition of Clinical trials

Health: As officially defined by the World Health Organization, a state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity.

NIH: The National Institutes of Health. The NIH is an important U.S. health agency. It is devoted to medical research. Administratively under the Department of Health and Human Services (HHS), the NIH consists of 20-some separate Institutes and Centers. NIH's program activities are represented by these Institutes and Centers.
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Clinical Research Trials

What Is a Clinical Trial?

A clinical trial is a research program conducted in patients to evaluate a new medical treatment, drug, or device. The purpose of clinical trials is to find new and improved methods of treating diseases and special conditions.

During a clinical trial, doctors use the best available treatment as a standard to evaluate new treatments. The new treatments are hoped to be at least as effective as -- or possibly more effective than -- the standard.

New treatment options are first researched in the laboratory, where they are carefully studied in the test tube and in laboratory animals. Only the treatments most likely to work are further evaluated in a small group of humans prior to applying them in a larger clinical trial.

When a new medical treatment is studied for the first time in humans, scientists don't know exactly how it will work. With any new treatment, there are possible risks as well as benefits. Clinical trials hel...

Read the Parkinson's Disease Clinical Trials article »











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