Duration of hospitalization (Up to 28 days), proportion of participants with normalization of fever (up to 14 days), change from baseline in white blood cell and differential count (up to 28 days), time to first negative in 2019 novel corona virus RT‐PCR test (Up to 28 days), all‐cause mortality (up to 12 weeks), change from baseline in hsCRP (Up to 28 days), change from baseline in cytokines IL‐1β, IL‐10, sIL‐2R, IL‐6, IL‐8 and TNF‐α (Up to 28 days), change from baseline in proportion of CD4 + CD3/CD8 + CD3 T cells (Up to 28 days)  NCT04306705/Recruiting, Feb20‐Jun20 2020