See Also: phase III clinical trial(medicine)
phase II clinical trial(medicine)
clinical trial, phase I(medicine)
phase I clinical trial(medicine)
clinical trial, phase II(medicine)
clinical trial, phase III(medicine)
clinical trial, phase IV(medicine)
clinical trial(medicine)
Clinical trial(health)
human clinical trial(medicine)

clinical trial, phase IV (medicine)


clinical trial, phase IV


Planned post-marketing studies of diagnostic, therapeutic, or prophylactic drugs, devices, or techniques that have been approved for general sale after clinical trials, phases I, II, and III. These studies, conducted in the united states or a foreign country, often garner additional data about the safety and efficacy of a product.