FDA expands authorised use of REGEN-COV

The US FDA has updated the Emergency Use Authorization (EUA) for Regeneron’s investigational COVID-19 antibody cocktail REGEN-COV (casirivimab and imdevimab).

The authorization now includes post-exposure prophylaxis in people at high risk for progression to severe COVID-19, who are not fully vaccinated or are not expected to mount an adequate response to vaccination, and have been exposed to a SARS-CoV-2 infected individual, or who are at high risk of exposure to an infected individual because of infection occurring in the same institutional setting (such as in nursing homes or prisons).

In those who require repeat dosing for ongoing exposure, REGEN-COV can also now be administered monthly.

This new indication in people aged 12 and older is in addition to the previously granted authorization to treat non-hospitalized patients. REGEN-COV is not a substitute for vaccination against COVID-19, and is not authorized for pre-exposure prophylaxis to prevent COVID-19.

“With this authorization, the FDA specifically highlights the needs of immunocompromised people, including those taking immunosuppressive medicines, who may not mount an adequate response to vaccination, who are exposed to a person with COVID-19 or are in an institutional setting and are at high risk of exposure because of infection occurring in the same setting,” said said George D. Yancopoulos, President and Chief Scientific Officer of Regeneron.

“Today’s FDA decision to expand the use of REGEN-COV in post-exposure settings is a very helpful step, and we continue to work with the FDA as it undertakes its review of REGEN-COV in a broader group of people including in a pre-exposure prophylactic setting for people who are immunocompromised, and in patients hospitalized due to COVID-19.”

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