====== Efficacy ======

Efficacy is the capacity for beneficial change (or therapeutic effect) of a given intervention, most commonly used in the practice of medicine and pharmacology.

Efficacy of a technique or product arises from the results obtained by a given center or professional who is outstanding on this subject.


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Usually, the [[randomized trial]] is the appropriate study to verify [[efficacy]] because it provides greater control of the possible [[confounding]] variables. [[Effectiveness]] is the capacity to reproduce and obtain the same results within the medical community, using different centers and with professionals who have distinct degrees of experience. The [[observational study]] is generally used, because it selects patients with more heterogeneous characteristics and centers with different expertise.

===== Efficacy mapping =====
[[Efficacy mapping]]