Advances in medicine and science are the result of new ideas and approaches developed through research. New treatments must prove to be safe and effective in scientific studies with a certain number patients before they can be made widely available.

Through clinical trials, researchers learn which approaches are more effective than others. This method is the most thorough way to test a new treatment. The major of the present standard treatments were first shown to be effective in clinical trials. These previous trials even today, help us find new and better treatments.