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REGN-COV2 FDA Approval Status

FDA Approved: No (Emergency Use Authorization)
Brand name: REGN-COV2
Generic name: casirivimab and imdevimab
Previous name: Regeneron antibody cocktail
Dosage form: Infusion
Company: Regeneron Pharmaceuticals, Inc.
Treatment for: COVID-19

REGN-COV2 is a combination of two monoclonal antibodies (casirivimab and imdevimab) designed specifically to block the infectivity of SARS-CoV-2, the virus that causes COVID-19.

  • The casirivimab and imdevimab antibody cocktail (REGN-COV2) received Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA) on November 21, 2020. Casirivimab and imdevimab injection is not FDA approved for any use.
  • 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.
  • 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.
  • The clinical evidence from Regeneron’s outpatient trial suggests that monoclonal antibodies such as casirivimab and imdevimab 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.

Development Timeline for REGN-COV2

DateArticle
Jan 12, 2021Regeneron Announces U.S. Government Agreement to Purchase Additional COVID-19 Antibody Cocktail Doses
Dec 17, 2020New England Journal of Medicine Publishes Positive Initial Regeneron Antibody Cocktail Results in Non-hospitalized Patients with COVID-19
Nov 21, 2020Regeneron’s Casirivimab and Imdevimab Antibody Cocktail for COVID-19 is First Combination Therapy to Receive FDA Emergency Use Authorization
Nov  5, 2020RECOVERY Trial Data Monitoring Committee Recommends Continuing Evaluation of REGN-COV2 in All Hospitalized Patients
Oct 30, 2020REGN-COV2 Independent Data Monitoring Committee Recommends Holding Enrollment in Hospitalized Patients with High Oxygen Requirements and Continuing Enrollment in Patients with Low or No Oxygen Requirements
Oct 28, 2020Regeneron's COVID-19 Outpatient Trial Prospectively Demonstrates that REGN-COV2 Antibody Cocktail Significantly Reduced Virus Levels and Need for Further Medical Attention
Oct  2, 2020Regeneron Confirms that REGN-COV2 Antibody Cocktail Provided to President Trump Under Compassionate Use Request
Sep 29, 2020Regeneron's REGN-COV2 Antibody Cocktail Reduced Viral Levels and Improved Symptoms in Non-Hospitalized COVID-19 Patients
Aug 18, 2020Genentech and Regeneron Collaborate to Significantly Increase Global Supply of REGN-COV2 Investigational Antibody Combination for COVID-19
Jul  7, 2020Regeneron Announces Manufacturing and Supply Agreement for BARDA and U.S. Department of Defense for REGN-COV2 Anti-Viral Antibody Cocktail
Jul  6, 2020Regeneron Announces Start of REGN-COV2 Phase 3 COVID-19 Prevention Trial in Collaboration with National Institute of Allergy and Infectious Diseases (NIAID)
Jun 11, 2020Regeneron Begins First Clinical Trials of Anti-Viral Antibody Cocktail REGN-COV2 for the Treatment and Prevention of COVID-19
Mar 17, 2020Regeneron Announces Important Advances in Novel COVID-19 Antibody Program
Feb  4, 2020Regeneron Announces Expanded Collaboration with HHS to Develop Antibody Treatments for New Coronavirus

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.