Clinical Trials · Pharmacology

What does the term 'Placebo Effect' refer to in the context of clinical trials?

  1. The toxic effect caused by an inactive substance
  2. A measurable improvement in health not attributable to the active medication
  3. The chemical interaction between a drug and its carrier
  4. A failure of the drug to reach steady-state concentration
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Correct answer: A measurable improvement in health not attributable to the active medication

The placebo effect is a psychological or physiological response to a sham treatment. Clinical trials use placebo groups to differentiate the true pharmacological action of a drug from the effects of being in a study.

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