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REGN-COV2 antibodies prevent and treat SARS-CoV-2 infection in rhesus macaques and hamsters

2020; American Association for the Advancement of Science; Volume: 370; Issue: 6520 Linguagem: Inglês

10.1126/science.abe2402

1095-9203

Alina Baum, Dharani K. Ajithdoss, Richard Copin, Anbo Zhou, Kathryn Lanza, Nicole Negron, Min Ni, Yi Wei, Kusha Mohammadi, Bret J. Musser, Gurinder S. Atwal, A. Oyejide, Yenny Goez-Gazi, John Dutton, Elizabeth A. Clemmons, Hilary Staples, Carmen Bartley, Benjamin Klaffke, Kendra J. Alfson, Michal Gaži, Olga González, Edward J. Dick, Ricardo Carrion, Laurent Pessaint, Maciel Porto, Anthony Cook, Renita Brown, Vaneesha Ali, Jack Greenhouse, Tammy Putman-Taylor, Hanné Andersen, Mark G. Lewis, Neil Stahl, Andrew Murphy, George D. Yancopoulos, Christos A. Kyratsous,

SARS-CoV-2 detection and testing

An urgent global quest for effective therapies to prevent and treat coronavirus disease 2019 (COVID-19) is ongoing. We previously described REGN-COV2, a cocktail of two potent neutralizing antibodies (REGN10987 and REGN10933) that targets nonoverlapping epitopes on the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. In this report, we evaluate the in vivo efficacy of this antibody cocktail in both rhesus macaques, which may model mild disease, and golden hamsters, which may model more severe disease. We demonstrate that REGN-COV-2 can greatly reduce virus load in the lower and upper airways and decrease virus-induced pathological sequelae when administered prophylactically or therapeutically in rhesus macaques. Similarly, administration in hamsters limits weight loss and decreases lung titers and evidence of pneumonia in the lungs. Our results provide evidence of the therapeutic potential of this antibody cocktail.