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Lilly's neutralizing antibody bamlanivimab (LY-CoV555) prevented COVID-19 at nursing homes in the BLAZE-2 trial, reducing risk by up to 80 percent for residents

Lilly, Press Release

Jan 2021

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Bamlanivimab/etesevimab

21st treatment shown to reduce risk in May 2021

^*, now with p = 0.00036 from 21 studies, recognized in 7 countries. Efficacy is variant dependent.

Lower risk for mortality, hospitalization, recovery, cases, and viral clearance.

No treatment is 100% effective. Protocols combine treatments. ^* >10% efficacy, ≥3 studies.

4,500+ studies for 81 treatments. c19early.org

Press release on the BLAZE-2 trial at nursing homes showing significantly lower symptomatic COVID-19 with treatment.

Efficacy is highly variant dependent. In Vitro research suggests a lack of efficacy for omicron1-5.

Important missing comments or errors? Let us know.

risk of symptomatic case, 57.0% lower, RR 0.43, p < 0.001, treatment 483, control 482, group sizes estimated because they were not supplied.

risk of symptomatic case, 80.0% lower, RR 0.20, p < 0.001, treatment 150, control 149, nursing home residents, group sizes estimated because they were not supplied.

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1. Liu et al., Striking Antibody Evasion Manifested by the Omicron Variant of SARS-CoV-2, bioRxiv, doi:10.1101/2021.12.14.472719.biorxiv.org, doi.org.

2. Sheward et al., Variable loss of antibody potency against SARS-CoV-2 B.1.1.529 (Omicron), bioRxiv, doi:10.1101/2021.12.19.473354.biorxiv.org, doi.org.

3. VanBlargan et al., An infectious SARS-CoV-2 B.1.1.529 Omicron virus escapes neutralization by several therapeutic monoclonal antibodies, bioRxiv, doi:10.1101/2021.12.15.472828.biorxiv.org, doi.org.

4. Pochtovyi et al., In Vitro Efficacy of Antivirals and Monoclonal Antibodies against SARS-CoV-2 Omicron Lineages XBB.1.9.1, XBB.1.9.3, XBB.1.5, XBB.1.16, XBB.2.4, BQ.1.1.45, CH.1.1, and CL.1, Vaccines, doi:10.3390/vaccines11101533.mdpi.com, doi.org.

5. Haars et al., Prevalence of SARS-CoV-2 Omicron Sublineages and Spike Protein Mutations Conferring Resistance against Monoclonal Antibodies in a Swedish Cohort during 2022–2023, Microorganisms, doi:10.3390/microorganisms11102417.mdpi.com, doi.org.

Lilly et al., 21 Jan 2021, Randomized Controlled Trial, USA, preprint, 1 author.

This Paper Bamlaniv../e..All

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