randomized controlled clinical trials

randomized controlled clinical trials,

n.pl medical research studies in which one or more groups are formed by random assignment to treatments and controls. Allows groups to be more equivalent when comparing he effects of treatment.
References in periodicals archive ?
First, the Courts decision reinforces that dietary supplements are not regulated as drugs, and structure function claims need not be supported by randomized controlled clinical trials (RCTs).
The randomized controlled clinical trials and extended treatment with PROCYSBI therapy demonstrated consistent and continuous control of white blood cell cystine levels, said the company.
No randomized controlled clinical trials have been published to assess the efficacy of lyengar yoga for adults with chronic neck pain.
Contributing to the nursing literature is a nursing responsibility, whether done by case study or via randomized controlled clinical trials.
Data Source: Meta-analysis and review of individual patient data on cancer deaths from randomized controlled clinical trials (n = 25,570) that had compared at least 4 years' treatment with aspirin versus no aspirin, originally performed for the prevention of vascular events.
ISHLT emphasized that many of the recommendations are based on expert consensus, and not on randomized controlled clinical trials, and that there are also gaps in evidence pertaining to many aspects of patient care.
Introduction to randomized controlled clinical trials, 2d ed.
Only a few randomized controlled clinical trials, the gold standard of medical research, have been conducted on yoga.
EVIDENCE-BASED ANSWER Most recent randomized controlled clinical trials have not found a benefit in antioxidants (vitamin C, vitamin E, and/or beta-carotene) for preventing cardiovascular disease, including stroke.
Since its introduction in the late 1980s, there have been some eight randomized controlled clinical trials, meta-analyses, and policy statements by various groups, such as the American College of Obstetrics and Gynecology (ACOG).

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