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clinical trial
(redirected from Human testing)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
trial /tri·al/ (tri´al) (trīl) a test or experiment.
clinical trial  an experiment performed on human beings in order to evaluate the comparative efficacy of two or more therapies.

clinical trial
n.
A research study using consenting human subjects that tests the effectiveness and safety of a treatment, a diagnostic tool, or a prophylactic intervention.

Clinical trial
All new drugs undergo clinical trials before approval. Clinical trials are carefully conducted tests in which effectiveness and side effects are studied, with the placebo effect eliminated.

trial [tri´al, trīl]
a test or experiment.
clinical trial an experiment performed on human beings in order to evaluate the comparative efficacy of two or more therapies. See also single blind, double blind, and triple blind.

clinical trial,
n a trial based upon the scientific method in which a control group and a test group are compared over time in order to study a single, differing factor.

trial, randomized controlled (RCT) 
An experimental design used for testing the effectiveness of a new medication or a new therapeutic procedure. Individuals are assigned randomly to a treatment group (experimental therapy) and a control group (placebo or standard therapy) and the outcomes are compared. The trial is strengthened by 'blinding' or masking (single-blind, double-blind or triple-blind study) and cross-over design. RCT is the most accepted scientific method of determining the benefit of a drug or a therapeutic procedure. It represents the best evidence available, which is integrated into the final decision about the management of a condition by healthcare practitioners in what is called evidence-based healthcare. Syn. randomized clinical trial. See sampling; significance; study.

clinical trial
Clinical medical trial, clinical research trial Research A controlled study involving human subjects, designed to evaluate prospectively the safety and effectiveness of new drugs or devices or behavioral interventions. See Drug discovery, IND, Phase I, II, and III studies.


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