obsolete Clinical Trial obsolete Clinical Trial, Phase III true MESH:D017428 'Work that is a report of a pre-planned, usually controlled, clinical study of the safety and efficacy of diagnostic, therapeutic, or prophylactic drugs, devices, or techniques after phase II trials. A large enough group of patients is studied and closely monitored by physicians for adverse response to long-term exposure, over a period of about three years in either the United States or a foreign country. [Curator team: []]' http://purl.bioontology.org/ontology/MESH/D017428 Clinical Trial, Phase 3