Effect of Molsidomine on the Endothelial (Internal Layer of Blood Vessels) Dysfunction in Patients With Angina Pectoris

Molsidomine used as an add-on treatment on standard care therapy should be superior to placebo used also as an add-on treatment on standard care therapy on improving the endothelial function (endothelium score measured by reactive hyperemia - peripheral arterial tonometry \[RH-PAT\]) after 12 months of treatment in patients with stable angina patients and undergoing elective percutaneous coronary intervention. The study will be double-blind, parallel-group, randomised, multicentre, sequential, placebo-controlled study. The device used to determine RH-PAT will be EndoPAT. Duration of the treatment = one year.