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The most common clinical manifestation of peripheral arterial disease is intermittent claudication due to insufficient blood supply to the affected limb. The article summarizes and systematizes the latest achievements in the field of conservative treatment of patients with intermittent claudication. In accordance with the requirements of evidence-based medicine, an overview of modern promising trends in conservative therapy presented in the latest Russian and foreign consensus documents, is given. The basis of the complex treatment of patients with peripheral arterial diseases is: non-drug and drug treatment to relieve the symptoms of chronic ischemia, pharmacotherapy for the secondary prevention of cardiovascular complications, open or endovascular revascularization to increase the distance of painfree walking. With the development of atherosclerosis, disturbances in the peptide composition of the endothelium occur, which reduce the ability of the vascular wall to resist inflammation and the associated triggering of pathological processes. It has been experimentally proven that the use of a complex of peptides obtained from the vessels of healthy and young animals in this situation restores the endothelial function of the arteries, affecting the main links of pathogenesis. Decrease in oxidative stress, decrease in atherogenic and lipidemic action, normalization of vascular tone and blood coagulation parameters, increase in the microvascular bed – these are the mechanisms that justify the indication of peptides to patients with atherosclerosis obliterans. Angioprotector based on a complex of polypeptides isolated from blood vessels can become an important part of the treatment of patients with obliterating diseases of the arteries of the lower extremities, providing a complex pathogenetic effect. It is necessary to further study in multicenter clinical trials the duration of the therapeutic effect of a drug in a longer period after a course of treatment, its effect on long-term outcomes of the disease, the possibility of using repeated courses, in chronic obliterating diseases of the arteries of the lower extremities III-IV stages according to the Fontaine classification, as well as the use drug for the treatment of systemic atherosclerosis of various arterial basins.