In clinical institutions that enroll patients with corona virus disease 2019, three arms, multi-center, randomized and controlled methods are adopted. Patients are divided into three groups, favipiravir combined with tocilizumab group, favipiravir group and tocilizumab group. 150 patients are expected to be enrolled and the cases are allocated according to the ratio of 3( favipiravir combined with tocilizumab group): 1(favipiravir group): 1(tocilizumab group).
The purpose of this study is to evaluate the efficacy and safety of favipiravir combined with tocilizumab in the treatment of corona virus disease 2019.