A Study of JS026 and JS026 Together With JS016 for Treatment of COVID-19

Five dose groups (30 mg, 100 mg, 300 mg, 600 mg, and 1000 mg) will be set to receive an intravenous infusion of JS026/placebo on Day1, and two dose groups (300 mg JS026 + 1200 mg JS016, and 600 mg JS026+ 1200 mg JS016) will be set to receive an intravenous infusion of JS026/placebo + JS016/placebo on Day1. The investigational product and placebo will be distributed in each dose group in a ratio of 3:1.

Two dose groups (300 mg + 1200 mg, and 600 mg + 1200 mg) will be set to receive an intravenous infusion of JS026/placebo + JS016/placebo on Day1. The investigational product and placebo will be distributed in each dose group in a ratio of 3:1.