Shionogi Receives U.S. FDA Fast Track Designation for Ensitrelvir Fumaric Acid, an Investigational Oral Antiviral for COVID-19

Shionogi & Co., Ltd. today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation for their investigational COVID-19 oral antiviral ensitrelvir (Generic name: ensitrelvir fumaric acid, Code No.: S-217622, hereafter