Definition of placebo - NCI Dictionary of Cancer Terms

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placebo

An inactive substance or treatment that looks the same as, and is given the same way as, an active drug or treatment being tested. The effects of the active drug or treatment are compared to the effects of the placebo.

Previous Definitions:	pixantrone, PJS, PKC, PKC412, PKU
Next Definitions:	placebo therapy, placebo-controlled, placenta, placental blood transplantation, Plan B