On November 21, 2020, Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) announced that the antibody cocktail casirivimab and imdevimab administered together (also known as REGN-COV2 or REGEN-COV2), a therapy currently being investigated for use in COVID-19, has received Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA). Casirivimab and imdevimab administered together are authorized for the treatment of mild to moderate COVID-19 in adults, as well as in pediatric patients at least 12 years of age and weighing at least 40 kg, who have received positive results of direct SARS-CoV-2 viral testing and are at high risk for progressing to severe COVID-19 and/or hospitalization. The clinical evidence from Regeneron's outpatient trial suggests that monoclonal antibodies such as REGEN-COV2 have the greatest benefit when given early after diagnosis and in patients who have not yet mounted their own immune response or who have high viral load. The criteria for “high-risk” patients are described in the Fact Sheet for Health Care Providers (https://www.regeneron.com/sites/default/files/treatment-covid19-eua-fda-letter.pdf). Casirivimab and imdevimab are not authorized for use in patients who are hospitalized or require oxygen therapy due to COVID-19, or for people currently using chronic oxygen therapy because of an underlying comorbidity who require an increase in baseline oxygen flow rate due to COVID-19. "This FDA Emergency Use Authorization is an important step in the fight against COVID-19, as high-risk patients in the United States will have access to a promising therapy early in the course of their infection," said Leonard S. Schleifer, MD, PhD, President and Chief Executive Officer of Regeneron.
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