Print this article Regeneron Pharmaceuticals will request federal approval to use its antibody treatment as a preventative measure after researchers found it significantly reduced the risk that healthy trial volunteers exposed to COVID-19 would develop the disease. "These antibodies may be particularly useful in individuals who are not yet vaccinated, and may also have potential in those who are immunosuppressed and may not respond well to vaccines," said Dr. Dan Barouch, co-principal investigator of the Regeneron trial. Researchers determined that the treatment, consisting of four injecti...