Summary.

The aim of this study was to examine the attitudesand to assess the willingness of patients and medical doctors to participate in post-marketing clinical trials. The purposes were realized by completing the following tasks: review of the literature with an emphasis on patients and medical professionals’ participation in interventional and non-interventional post-marketing clinical trials. Following in-site nested survey was designed to assess the patients’ knowledge about their disease and treatment, attitudes to adhere to ongoing therapy and willingness to participate in clinical trials of investigational medicinal products for coronary heart disease. The willingness of medical doctorsto be involved in post-marketing study of medicines in ischemic heart disease was also examined.