Clinical trials are the core of medical research. Investigations are performed to determine how new treatments will work in human patients and valuable data concerning the benefits and risks of new drugs, medical approaches, and procedures are collected. Clinical trials are conducted to find effective ways to understand, prevent, diagnose, and treat diseases. However, clinical studies are also conducted to improve the quality of life of patients with chronic illnesses.As the best clinical research training based on clinical trials strive to investigate if a potential treatment is both safe and effective, there is a certain level of risk associated with it. When the recruited volunteers are chosen, there is a possibility that the treatment shall not be effective, and the volunteer can also be subjected to certain side-effects.