INTRODUCTION. The evolution of the influenza virus has led to a gradual decrease in the effectiveness of current antivirals. Better methods of prevention, detection, control, and treatment of influenza are needed, including more effective vaccines and antivirals. At the moment, the Russian Federation and the Eurasian Economic Union lack documents regulating the conduct of clinical trials of medicinal products for influenza prevention and require that guidelines should be developed for the matter.AIM. The authors aimed to analyse the main regulatory approaches to preclinical and clinical development programmes for medicinal products for influenza prevention in the Russian Federation, the Eurasian Economic Union (EAEU), the European Union, and the United States of America.DISCUSSION. This review substantiates the importance of non-specific influenza chemoprophylaxis in reducing the risk of adverse outcomes of the disease. The authors analysed the main stages of preclinical development of medicinal products for influenza prevention and the potential contribution of preclinical studies to the planning of clinical trials. When developing preclinical and clinical programmes for medicinal products for influenza prevention, it is necessary, first of all, to take into account the requirements of the national good clinical practice guidelines and the EAEU guidelines for clinical trials in general. This article pays particular attention to the clinical trial designs used internationally, the possible options for their implementation, the characteristics of study populations, the formation of study groups, and the selection of primary and secondary endpoints.CONCLUSIONS. The article proposes approaches to planning and conducting clinical trials of medicinal products for the prevention of influenza, taking into account the specifics of legal norms and clinical traditions of Russian practice. These recommendations will ensure high-quality data on the effectiveness and safety of investigational medicinal products and accelerate the introduction of new effective medicinal products for influenza prevention into medical practice.
