What are the differences between an aproved clinical treatment and an experimental intervention?
An approved clinical treatment is a medical practice that has been shown through a formal process of clinical trials to be reasonably safe and effective for treating a particular disease or condition. Normally, such treatments will be approved by a national or regional regulatory agency, for example, the US Food and Drug Administration (FDA) or the European Medicine Agency (EMEA).
An experimental intervention is new, untested, or different from the usual medical treatment. It has not yet been proven that it is safe or that it will work in treating the particular disease.