Gyre Therapeutics Inc is a biopharmaceutical company headquartered in San Diego, CA, that is primarily focused on the development and commercialization of Hydronidone (F351) for the treatment of Metabolic Dysfunction Associated Steatohepatitis (MASH-associated liver fibrosis (MASH fibrosis), formerly known as Nonalcoholic Steatohepatitis (NASH)) in the United States.