Shares of InflaRx (NASDAQ: IFRX) were up 48% an hour after the market opened on Wednesday on news the company's COVID-19 therapy was receiving an Emergency Use Authorization (EUA) from the Food and Drug Administration (FDA). The healthcare stock jumped to a 52-week high of $7.25 a share in early trading after the FDA approved an EUA for Gohibic (vilobelimab), a monoclonal anti-human complement factor C5a antibody, to treat hospitalized COVID-19 patients within 48 hours of receiving oxygen through a ventilator or through a heart-lung machine. The EUA is based on the company's successful phase 3 study of the drug on 369 hospitalized patients that showed a 23.9% reduction in the mortality rate compared with placebo.