Whether it is a new medication, device, therapeutic approach, or vaccination, every medical intervention is thoroughly tested in laboratories. If the treatment looks promising and safe, it is then carefully trialled on people. Clinical trials may involve patients, healthy people or both in order to treat or prevent diseases and conditions.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/why-are-clinical-trials-important-four-reasons-to-volunteer