COCA NOW Clarification COCA Memo: Monoclonal Antibodies Bamlanivimab and Etesevimab May Be Less Effective for Treating Cases of COVID-19 Caused by SARS-CoV-2 Variants
The recent COCA NOW : Monoclonal Antibodies Bamlanivimab and Etesevimab May Be Less Effective for Treating Cases of COVID-19 Caused by SARS-CoV-2 Variants COCA notification released September 10, 2021 highlighted changes made to CDC’s Variant Classification and Definitions webpage, which primarily focused on updates to Substitutions of Therapeutic Concern. These updates contained accurate information, but unintentionally indicated a possible cause for concern that this combination monoclonal antibody product was not effective against infections with the SARS-CoV-2 Delta variant. CDC has no evidence at present that Delta variants circulating in the United States carry mutations than might confer resistance to this drug.
The information provided in the Substitutions of Concern for SARS-CoV-2 Monoclonal Antibody Therapies is based on laboratory data provided in the Fact Sheet for Health Care Providers for EUA of Bamlanivimab and Etesevimab, which indicates no change in susceptibility to bamlanivimab and etesevimab for the Delta variants. As such, clinical recommendations have not changed.
Clinicians seeking advice on the use of monoclonal antibody products authorized for emergency use in the United States for the treatment and prevention of SARS-CoV-2 should consult the NIH COVID-19 Treatment Guidelines.
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