Cited by 212SARS-CoV-2 and COVID-19 ResearchMonoclonal and Polyclonal Antibodies ResearchCOVID-19 Clinical Research Studies

The monoclonal antibody combination REGEN-COV protects against SARS-CoV-2 mutational escape in preclinical and human studies

Open access
Copin, Richard, Baum, Alina, Wloga, Elzbieta, Pascal, Kristen E., Giordano, Stephanie, Fulton, Benjamin O., Zhou, Anbo, Negron, Nicole +29 more·2021·Cell

Abstract

Monoclonal antibodies against SARS-CoV-2 are a clinically validated therapeutic option against COVID-19. Because rapidly emerging virus mutants are becoming the next major concern in the fight against the global pandemic, it is imperative that these therapeutic treatments provide coverage against circulating variants and do not contribute to development of treatment-induced emergent resistance. To this end, we investigated the sequence diversity of the spike protein and monitored emergence of virus variants in SARS-COV-2 isolates found in COVID-19 patients treated with the two-antibody combination REGEN-COV, as well as in preclinical in vitro studies using single, dual, or triple antibody combinations, and in hamster in vivo studies using REGEN-COV or single monoclonal antibody treatments. Our study demonstrates that the combination of non-competing antibodies in REGEN-COV provides protection against all current SARS-CoV-2 variants of concern/interest and also protects against emergence of new variants and their potential seeding into the population in a clinical setting.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.cell.2021.06.002

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The resistance profile of the Gamma variant to the FDA EUA-approved mAbs is similar to that of the Beta variant.

    “The resistance profile of the Gamma vari ant to the FDA EUA-approved mAbs is similar to that of the Beta variant 103,109,217,227,228 (TABLe 1).”
  • Of the five FDA EUA-approved mAbs, bamlanivimab, etesevimab and casirivimab are largely inactive against B.1.351 whereas imdevimab and sotrovimab, which bind to the RBD core, retain neutralizing activity.

    “Of the five FDA EUA-approved mAbs, bamlanivimab, etesevimab and casirivimab are largely inactive against B.1.351whereas imdevimab and sotrovimab, which bind to the RBD core, retain neutralizing activity 104,109,117,175,204 (TABLe 1).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 39 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Copin, R., Baum, A., Wloga, E., Pascal, K. E., Giordano, S., Fulton, B. O., Zhou, A., Negron, N., Lanza, K., Chan, N., Coppola, A., Chiu, J., Ni, M., Wei, Y., Atwal, G. S., Hernandez, A. R., Saotome, K., Zhou, Y., Franklin, M. C., Hooper, A. T., McCarthy, S., Hamon, S., Hamilton, J. D., Staples, H. M., Alfson, K., Carrion, R., Ali, S., Norton, T., Somersan-Karakaya, S., Sivapalasingam, S., Herman, G. A., Weinreich, D. M., Lipsich, L., Stahl, N., Murphy, A. J., Yancopoulos, G. D., & Kyratsous, C. A.
Affiliations
  • Regeneron (United States) (US)
  • Texas Biomedical Research Institute (US)
Corresponding author
Kyratsous, Christos A.
Venue
Cell
Publisher
Elsevier BV
Published
2021-07
Volume
184
Issue
15
Pages
3949-3961.e11
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3170333570
Cited by
212
References
39
Citations by year
2026: 16 · 2025: 14 · 2024: 24 · 2023: 32 · 2022: 90 · 2021: 36
FWCI
14.40
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
Funders
Biomedical Advanced Research and Development Authority
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
Keywords
SARS-CoV-2, COVID-19 pandemic, spike protein mutations, variants of concern, antibody combination therapy, hamster model
MeSH terms
COVID-19, SARS-CoV-2, Animals, Antibodies, Monoclonal, Chlorocebus aethiops, Cricetinae, Hospitalization, Humans, Lung, Male, Mutation, Neutralization Tests, Vero Cells, Viral Load, Cryoelectron Microscopy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review