FDA approves investigational monoclonal antibody therapy sotrovimab for COVID-19 The U.S. Food and Drug Administration (FDA) has given the green light on the investigational monoclonal antibody therapy, sotrovimab, as a treatment for coronavirus disease 2019 (COVID-19). The regulatory agency granted an Emergency Use Authorization (EUA) for sotrovimab, previously called VIR-7831, to treat mild to moderate COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The therapy, which was developed by GlaxoSmithKline (GSK) and Vir Biotechnology, is a single-dose monoclonal ...