Предварительные результаты адаптивного рандомизированного открытого контролируемого исследования эффективности и безопасности препарата энисамия йодид для лечения госпитализированных больных с COVID-19

Abstract

Aim: to assess the efficacy and safety of enisamium iodide (film-coated tablets, 250 mg) for outpatient treatment of moderate-to-severe COVID-19 infection. Patients and Methods: this adaptive, randomized, open-label controlled study on the efficacy and safety of enisamium iodide enrolled 194 patients. The study group included 97 patients, and the comparison group included 97 patients. Comparison group patients received standard therapy. Study group patients received orally 500 mg of enisamium iodide three times daily for seven days. In addition, pathogenic and symptomatic treatment was prescribed. The first component of the primary endpoint was composite efficiency parameter. The second component of the primary endpoint was the proportion of patients with respiratory failure. Registration of deaths, adverse events and serious adverse events was carried out by standard methods. Results: cohort enrollment into part 1 of the study and treatment of all patients were completed. The mean time of the relief of major COVID-19 symptoms (primary combination endpoint) and differences between the study and comparison groups (8 days and 9 days, respectively, p=0.028) were revealed. The rate of respiratory failure in the study group and comparison group was: 4 (4,12%) versus 8 (8,25%) cases respectively. In addition, the effect of this drug on mortality in the groups was compared (one death in the study group and five deaths in the comparison group). The statistical reliability of these differences will be determined during part 2 of this study that started in September 2021. Conclusions: the efficacy and safety of enisamium iodide (film-coated tablets, 250 mg) for the COVID-19 were evaluated. A significant reduction in the time to clinical recovery (by one day) was reported in patients who received enisamium iodide. In addition, the rate of severe respiratory failure and associated mortality also tends to reduce after therapy that includes enisamium iodide. KEYWORDS: enisamium iodide, antivirals, etiopathogenic treatment, SARS-CoV-2, COVID-19, viral lung damage, pneumonia, randomized controlled study, adaptive study, open-label study. FOR CITATION: N.Yu. Pshenichnaya, Zhdanov K.V. Preliminary results of an adaptive randomized open-label controlled study on the efficacy and safety of enisamium iodide for outpatient treatment of the COVID-19 infection. Russian Medical Inquiry. 2021;5(11):705–711 (in Russ.). DOI: 10.32364/2587-6821-2021-5-11-705-711.