Clinical Trials, Phase IV as Topic
"Clinical Trials, Phase IV as Topic" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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.
This graph shows the total number of publications written about "Clinical Trials, Phase IV as Topic" by people in this website by year, and whether "Clinical Trials, Phase IV as Topic" was a major or minor topic of these publications.
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