Definition: A method of investigation of drugs in which an inactive substance (the placebo) is given to one group of participants, while the drug being tested is given to another group. The results obtained in the two groups are then compared to see if the investigational treatment is more effective in treating the condition.
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Source:
ClinicalTrials.gov
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Source:
ClinicalTrials.gov
Examples: Most final drug trials are placebo controlled to obtain the most valuable results.
