A Clinical Trial of Convalescent Plasma Compared to Best Supportive Care for Treatment of Patients With Severe COVID-19

This is a randomized, prospective, multicenter, open label clinical trial of convalescent plasma compared to best supportive care for treatment of patients with severe COVID-19. The aim of the study is to explore the therapeutic effect of convalescent plasma transfusions on the survival and course of disease of patients with severe COVID-19. Convalescent plasma will be collected from recovered COVID-19 patients. Patients with severe COVID-19 will be randomly assigned to two groups. Patients in the treatment group will receive covalescent plasma (250 - 325 ml) on days 1, 3 and 5. Patients in the control group will receive best supportive care. Clinical condition in all patients will be evaluated on day 14. In case of progressive COVID-19 on day 14 compared to baseline, patients in the control group may be switched to treatment with convalescent plasma on days 15, 17 and 19. Fifty-three patients will be included in each group. Data of each patient will be collected until discharge but nor longer than day 60.