Placebo-controlled clinical trial

A clinical trial where some of the participants receive a placebo treatment – an inactive substance designed to resemble the drug being tested. Usually these trials are “blinded” so that the participants and the researchers do not know who is receiving the real treament and who is receiving the placebo.This clinical trial design is used to rule out any benefits a drug might exhibit because the recipients believe they are taking it and to eliminate any bias on the part of the researchers measuring the benefit of the treatment.

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