《英文msh詞典》Phase 4 Clinical Trials
[入口詞] Phase 4 Clinical Trials
[主題詞] Clinical Trials,Phase IV
[英文釋義] 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.