Casirivimab/imdevimab, sold under the brand name REGEN‑COV among others,[8][10] is a combination medicine used for the treatment and prevention of COVID‑19.[10] It consists of two human monoclonal antibodies, casirivimab and imdevimab that must be mixed together and administered as an infusion or subcutaneous injection.[13][8][10] The combination of two antibodies is intended to prevent mutational escape.[14] It is also available as a co-formulated product.[13] It was developed by the American biotechnology company Regeneron Pharmaceuticals.[15][16]
The most common side effects include allergic reactions, which include infusion related reactions, injection site reactions,[10] brief pain, weakness and others.[17]
The combination is approved under the brand name Ronapreve for medical use in Japan, the United Kingdom, the European Union, and Australia.[1][7][10][12][18][19]
In January 2022, the U.S. Food and Drug Administration (FDA) revised the authorizations for two monoclonal antibody treatments – bamlanivimab/etesevimab (administered together) and casirivimab/imdevimab – to limit their use to only when the recipients are likely to have been infected with or exposed to a variant that is susceptible to these treatments because data show these treatments are highly unlikely to be active against the omicron variant.[20]
^ abc"Ronapreve". Therapeutic Goods Administration (TGA). 18 October 2021. Archived from the original on 23 October 2021. Retrieved 22 October 2021.
^ ab"AusPAR: Casirivimab/imdevimab". Therapeutic Goods Administration (TGA). 2 November 2021. Archived from the original on 21 November 2021. Retrieved 23 March 2022.
^Cite error: The named reference FDA PR 20201121 was invoked but never defined (see the help page).
^ abcdef"Ronapreve EPAR". European Medicines Agency. 10 November 2021. Archived from the original on 13 November 2021. Retrieved 12 November 2021. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
^"COVID-19 medicines". European Medicines Agency (EMA). 14 October 2024. Retrieved 14 October 2024.