In Slovakia is currently in process 220 clinical trials for new drugs. According to health insurance companies, the most frequently clinical trials are on treatment of cardiovascular, oncology, pulmonary and gastroenterological diseases. The most common are studies that last for about two years. Age of participants for clinical trials is unlimited. Children were tested mainly on the vaccination, but also on medicines for hypertension, asthma, skin diseases or rare diseases as cystic fibrosis or sclerosis multiplex.