Clinical Trials, Phase IV as Topic

**Definition:** Works about planned post-marketing studies of diagnostic, therapeutic, or prophylactic drugs, devices, or techniques that have been approved for general sale. These studies are often conducted to obtain additional data about the safety and efficacy of a product. This concept includes phase IV studies conducted in both the U.S. and in other countries.

**Tree numbers:** - E05.318.372.250.250.230 - E05.337.800.200 - N05.715.360.330.250.250.230 - N06.850.520.450.250.250.230

**Synonyms:** - Clinical Trials, Phase 4 as Topic