PT - JOURNAL ARTICLE AU - Kathryn Westendorf AU - Stefanie Žentelis AU - Denisa Foster AU - Peter Vaillancourt AU - Matthew Wiggin AU - Erica Lovett AU - Robin van der Lee AU - Jörg Hendle AU - Anna Pustilnik AU - J. Michael Sauder AU - Lucas Kraft AU - Yuri Hwang AU - Robert W. Siegel AU - Jinbiao Chen AU - Beverly A. Heinz AU - Richard E. Higgs AU - Nicole Kalleward AU - Kevin Jepson AU - Rodrigo Goya AU - Maia A. Smith AU - David W. Collins AU - Davide Pellacani AU - Ping Xiang AU - Valentine de Puyraimond AU - Marketa Ricicova AU - Lindsay Devorkin AU - Caitlin Pritchard AU - Aoise O’Neill AU - Kush Dalal AU - Pankaj Panwar AU - Harveer Dhupar AU - Fabian A. Garces AU - Courtney Cohen AU - John Dye AU - Kathleen E. Huie AU - Catherine V. Badger AU - Darwyn Kobasa AU - Jonathan Audet AU - Joshua J. Freitas AU - Saleema Hassanali AU - Ina Hughes AU - Luis Munoz AU - Holly C. Palma AU - Bharathi Ramamurthy AU - Robert W. Cross AU - Thomas W. Geisbert AU - Vineet Menacherry AU - Kumari Lokugamage AU - Viktoriya Borisevich AU - Iliana Lanz AU - Lisa Anderson AU - Payal Sipahimalani AU - Kizzmekia S. Corbett AU - Lingshu Wang AU - Eun Sung Yang AU - Yi Zhang AU - Wei Shi AU - Barney S. Graham AU - John R. Mascola AU - Tara L. Fernandez AU - Carl L. Hansen AU - Ester Falconer AU - Bryan E. Jones AU - Bryan C. Barnhart TI - LY-CoV1404 (bebtelovimab) potently neutralizes SARS-CoV-2 variants AID - 10.1101/2021.04.30.442182 DP - 2021 Jan 01 TA - bioRxiv PG - 2021.04.30.442182 4099 - http://biorxiv.org/content/early/2021/09/09/2021.04.30.442182.short 4100 - http://biorxiv.org/content/early/2021/09/09/2021.04.30.442182.full AB - LY-CoV1404 (also known as bebtelovimab) is a highly potent, neutralizing, SARS-CoV-2 spike glycoprotein receptor binding domain (RBD)-specific antibody identified from a convalescent COVID-19 patient sample, obtained approximately 60 days after symptom onset. In pseudovirus studies, LY-CoV1404 retains potent neutralizing activity against numerous variants including B.1.617.2, B.1.1.7, B.1.351, B.1.427/B.1.429, P.1, and B.1.526, binding to these variants in the presence of their underlying RBD mutations (which include K417N, L452R, E484K, and N501Y). LY-CoV1404 also neutralizes multiple isolates of the authentic SARS-CoV-2 virus in two different assays. The RBD positions comprising the LY-CoV1404 epitope are highly conserved, with the exception of N439 and N501; notably the binding and neutralizing activity of LY-CoV1404 is unaffected by the most common mutations at these positions (N439K and N501Y). New variant-resistant treatments such as LY-CoV1404 are desperately needed, given that some of the existing therapeutic antibodies are less effective or ineffective against certain variants and the impact of variants on vaccine efficacy is still poorly understood. The breadth of variant binding, potent neutralizing activity and the relatively conserved epitope suggest that LY-CoV1404 is one in a panel of well-characterized, clinically developable antibodies that could be deployed as potentially long-term solutions to address current and emerging variants.In Brief LY-CoV1404 is a potent SARS-CoV-2-binding antibody that neutralizes all known variants of concern and whose epitope is rarely mutated.HighlightsLY-CoV1404 potently neutralizes SARS-CoV-2 authentic virus and all known variants of concern including the B.1.617.2 (Delta) variantNo loss of potency against currently circulating variantsBinding epitope on RBD of SARS-CoV-2 is rarely mutated in GISAID databaseBreadth of neutralizing activity and potency supports clinical developmentCompeting Interest StatementD.F., P. V., A.P., J.H., J.M.S., R.W.S, J.C., I. H., J. J. F., S. H., H. C. P., B. R., B. A. H., R. W. S., J. C., J. M. S., R. E. H., N. K., and B.E.J. are employees and/or stockholders of Eli Lilly and Company. K.W., S. Z., M.W., E.L., L.K., Y.H., K.J., R.G., M.A.S., D.W.C., D.P., P.X., V.d.P., R.v.d.L., M.R., L.D., C.P., I.L., L.A., P.S., T.L.F., C.L.H, E.F., and B.C.B are employees and stockholders of AbCellera Biologics Inc. AbCellera Biologics Inc. and National Institutes of Health have filed patent applications related to the work described herein (US Patent Application No. 17/192243 and International Patent Application No. PCT/US21/20843, both titled: Anti-Coronavirus Antibodies and Methods of Use).