TYPES OF CLINICAL TRIALS
T here are several clinical trials which are listed below: INTERVENTIONAL TRIALS: These are clinical trials which set out to test treatments or combinations of treatments which have not yet been officially approved. For example, a pharmaceutical company may have developed a new drug which it believes would be effective in the treatment of Alzheimer’s disease but must first test it on human volunteers in accordance with strict and rigorous guidelines in order to ensure that it is safe and effective. Some drugs might be aimed at curing a particular condition, whereas others might be aimed at better controlling symptoms of a particular condition. PREVENTION TRIALS: It involve tests to find ways to prevent particular medical conditions or if people have them already, to prevent them from reoccurring. The emphasis of these studies might be on medicines, vitamins and minerals or lifestyle changes. OBSERVATIONAL TRIALS: It investigates health issues in large groups of people. The partic...