Thousands of people participate in clinical studies each year. Some studies need healthy volunteers, whereas others require participants with a certain condition or disease.
All participants are important to a clinical study. That’s because participants help researchers answer important health questions. These answers may help lead to the discovery of new medicines, which provides a unique opportunity to contribute to science.
In order to participate in a clinical study, specific eligibility criteria must first be met. These criteria help researchers identify appropriate candidates for participation and are designed to promote safety and accuracy of study results. The criteria may allow or prevent participation.