The monoclonal antibody combinations bamlanivimab/etesevimab and casirivimab/imdevimab (REGEN-COV) should only be used for COVID-19 patients exposed to variants other than Omicron, the FDA said on Monday.

The agency revised the emergency use authorization (EUA) for the two antibody cocktails for use “only when the patient is likely to have been infected with or exposed to a variant that is susceptible to these treatments,” Patrizia Cavazzoni, MD, director of the FDA’s Center for Drug Evaluation and Research, said in the statement.

The monoclonal antibody combinations bamlanivimab/etesevimab and casirivimab/imdevimab (REGEN-COV) should only be used for COVID-19 patients exposed to variants other than Omicron, the FDA said on Monday.

The agency revised the emergency use authorization (EUA) for the two antibody cocktails for use “only when the patient is likely to have been infected with or exposed to a variant that is susceptible to these treatments,” Patrizia Cavazzoni, MD, director of the FDA’s Center for Drug Evaluation and Research, said in the statement.