Phase III Study of AZD7442 for Treatment of COVID-19 in Outpatient Adults

Summary

This Phase III study will assess whether AZD7442 (a combination of 2 mAbs) can safely treat outpatient adults with COVID-19 and prevent either severe COVID-19 or death.

Timeline

Start

2021-01-28

Primary completion

2021-08-21

Completion

2022-10-19

Outcome

Met primary endpoint

registry analysis (superiority test); AZD7442 vs Placebo; p = 0.010; Relative Risk Reduction (100*[1-RR]) 50.38 (95% CI 14.38 to 71.25) NCT04723394 ↗

paper Severe COVID-19 or death occurred in 18 (4%) of 407 participants in the tixagevimab-cilgavimab group versus 37 (9%) PMID 35688164 ↗

release “Additionally, the TACKLE Phase III outpatient treatment trial of Evusheld showed it reduced the risk of developing severe COVID-19 or death” astrazeneca.com ↗

release “provided clinically and statistically significant protection against progression to severe COVID-19 or death from any cause compared to placebo.” astrazeneca.com ↗

release “TACKLE Phase III outpatient treatment trial showed AstraZeneca’s Evusheld (tixagevimab and cilgavimab, formerly AZD7442) provided clinically and statistically significant protection against progression” astrazeneca.com ↗

Publications

• Background Ashraf-Kashani and Kumar 2017 Ashraf-Kashani N, Kumar R. High-flow nasal oxygen therapy. BJA Education. 2017;17:57-62.
• Background Gou and Xi 2019 Gou J, Xi D. Hierarchical testing of a primary and a secondary endpoint in a group sequential design with different information times. Statistics in Biopharmaceutical Research. 2019;11(4):398-406, DOI: 10.1080/19466315.2018.1546613.
• Background ICMRA 2020 International Coalition of Medicines Regulatory Authorities. Global regulatory workshop on COVID-19 therapeutics: agreement on acceptable endpoints for clinical trials. Published online July 2020. Retrieved from http://icmra.info/drupal/news/20july2020/summary
• Background Li F. Structure, Function, and Evolution of Coronavirus Spike Proteins. Annu Rev Virol. 2016 Sep 29;3(1):237-261. doi: 10.1146/annurev-virology-110615-042301. Epub 2016 Aug 25.
• Background Miettinen O, Nurminen M. Comparative analysis of two rates. Stat Med. 1985 Apr-Jun;4(2):213-26. doi: 10.1002/sim.4780040211.
• Background Sharma S, Danckers M, Sanghavi DK, Chakraborty RK. High-Flow Nasal Cannula. 2023 Apr 6. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK526071/
• Background Tamhane AC, Mehta CR, Liu L. Testing a primary and a secondary endpoint in a group sequential design. Biometrics. 2010 Dec;66(4):1174-84. doi: 10.1111/j.1541-0420.2010.01402.x.
• Background WHO 2020 WHO COVID-19 Dashboard. Available from: https://covid19.who.int
• Background WHO Working Group on the Clinical Characterisation and Management of COVID-19 infection. A minimal common outcome measure set for COVID-19 clinical research. Lancet Infect Dis. 2020 Aug;20(8):e192-e197. doi: 10.1016/S1473-3099(20)30483-7. Epub 2020 Jun 12.
• Background Zhou P, Yang XL, Wang XG, Hu B, Zhang L, Zhang W, Si HR, Zhu Y, Li B, Huang CL, Chen HD, Chen J, Luo Y, Guo H, Jiang RD, Liu MQ, Chen Y, Shen XR, Wang X, Zheng XS, Zhao K, Chen QJ, Deng F, Liu LL, Yan B, Zhan FX, Wang YY, Xiao GF, Shi ZL. A pneumonia outbreak associated with a new coronavirus of probable bat origin. Nature. 2020 Mar;579(7798):270-273. doi: 10.1038/s41586-020-2012-7. Epub 2020 Feb 3.
• Background Zou G. A modified poisson regression approach to prospective studies with binary data. Am J Epidemiol. 2004 Apr 1;159(7):702-6. doi: 10.1093/aje/kwh090.
• Background CDC, 2021 CDC, Investigating the Impact of COVID-19 during Pregnancy, available from https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/special-populations/pregnancy-data-on-covid-19/what-cdc-is-doing.html
• Background CDC, Growth Charts CDC, Growth Charts, available from https://www.cdc.gov/growthcharts/clinical_charts.htm
• Background Lilly BLAZE-1 2021 Lilly. Lilly's bamlanivimab and etesevimab together reduced hospitalizations and death in Phase 3 trial for early COVID-19. Published online 10 March 2021. Accessed 31 March 2021. https://investor.lilly.com/news-releases/news-release-details/lillys-bamlanivimab-and-etesevimab-together-reduced
• Background Regeneron Pharmaceuticals, Inc. REGEN-COV Outpatient Trial 2021 Regeneron Pharmaceuticals, Inc. Phase 3 trial shows Regen-Cov™ (casirivimab with imdevimab) antibody cocktail reduced hospitalization or death by 70% in non-hospitalized Covid-19 patients. Published online 23 March 2021. Accessed 31 March 2021. https://investor.regeneron.com/news-releases/news-release-details/phase-3-trial-shows-regen-covtm-casirivimab-imdevimab-antibody#:~:text=This%20definitive%20Phase%203%20outcomes,71%25%20(2%2C400%20mg%20IV)
• Hobbs FDR, Montgomery H, Padilla F, Simon-Campos JA, Arbetter D, Seegobin S, Kiazand A, Streicher K, Martinez-Alier N, Cohen TS, Esser MT. Safety, Efficacy and Pharmacokinetics of AZD7442 (Tixagevimab/Cilgavimab) for Treatment of Mild-to-Moderate COVID-19: 15-Month Final Analysis of the TACKLE Trial. Infect Dis Ther. 2024 Mar;13(3):521-533. doi: 10.1007/s40121-024-00931-4. Epub 2024 Feb 25.
• Hobbs FDR, Montgomery H, Padilla F, Simon-Campos JA, Kim K, Arbetter D, Padilla KW, Reddy VP, Seegobin S, Streicher K, Templeton A, Viani RM, Johnsson E, Koh GCKW, Esser MT. Outpatient Treatment with AZD7442 (Tixagevimab/Cilgavimab) Prevented COVID-19 Hospitalizations over 6 Months and Reduced Symptom Progression in the TACKLE Randomized Trial. Infect Dis Ther. 2023 Sep;12(9):2269-2287. doi: 10.1007/s40121-023-00861-7. Epub 2023 Sep 26.
• Montgomery H, Hobbs FDR, Padilla F, Arbetter D, Templeton A, Seegobin S, Kim K, Campos JAS, Arends RH, Brodek BH, Brooks D, Garbes P, Jimenez J, Koh GCKW, Padilla KW, Streicher K, Viani RM, Alagappan V, Pangalos MN, Esser MT; TACKLE study group. Efficacy and safety of intramuscular administration of tixagevimab-cilgavimab for early outpatient treatment of COVID-19 (TACKLE): a phase 3, randomised, double-blind, placebo-controlled trial. Lancet Respir Med. 2022 Oct;10(10):985-996. doi: 10.1016/S2213-2600(22)00180-1. Epub 2022 Jun 7.
• Kreuzberger N, Hirsch C, Chai KL, Tomlinson E, Khosravi Z, Popp M, Neidhardt M, Piechotta V, Salomon S, Valk SJ, Monsef I, Schmaderer C, Wood EM, So-Osman C, Roberts DJ, McQuilten Z, Estcourt LJ, Skoetz N. SARS-CoV-2-neutralising monoclonal antibodies for treatment of COVID-19. Cochrane Database Syst Rev. 2021 Sep 2;9(9):CD013825. doi: 10.1002/14651858.CD013825.pub2.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	cilgavimab	Monoclonal antibody	300 mg	Intramuscular
Subject	tixagevimab	Monoclonal antibody	300 mg	Intramuscular

Indications