Participants in research studies are not "guinea pigs." These medications or devices have been tested for effectiveness and safety before they are ever used on human subjects.

Often, being in a research study provides very expensive study related lab tests, physical exams, electrocardiograms, dietary counseling, etc., free of charge. People who participate in these studies are taking an active role in their own health care.

Also, by participating in a research study you may be helping others who have the same condition, as well as future generations.