Clinical trials are the accepted practice for testing many kinds of new treatments, such as drugs, vaccines, and medical devices. Trials are federally regulated and follow strict scientific guidelines.
Research often involves controlled tests on people to check for safety and efficacy.
Safeguards are built into the tests and doctors and other health professionals oversee them. Clinical trials take place at clinics, hospitals, research facilities or doctor s offices. Studies may involve hospitalized patients or outpatients. Many factors determine a person s eligibility to participate in a clinical trial. Age, medical history and current medical conditions are the most common criteria.