Phase 3 Boosting Study for the SARS-CoV-2 rS Vaccine

Summary

This is an observer-blinded Phase 3 study to evaluate the safety and immunogenicity of a single booster dose of the Novavax severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) recombinant (r) spike (S) protein nanoparticle vaccine adjuvanted with Matrix-MTM (NVX-CoV2373) in adults previously vaccinated with the BBIBP-CorV vaccine. The study will enroll approximately1,000 participants \>18 years of age. All participants will be randomized in a 1:1 ratio to receive a single booster dose of NVX-CoV2373 or the BBIBP-CorV vaccine. All participants will receive the booster dose on Day 0 and remain on study for immunogenicity and safety data collection through Day 180. An interim analysis will be performed of safety and immunogenicity data gathered through Day 28.

Timeline

Start

2022-03-18

Primary completion

2023-05-04

Completion

2023-05-04

Publications

• Background Formica N, Raburn Mallory R, Gary Albert A, et al, for the 2019nCoV-101 Study Group. Evaluation of a SARS-CoV-2 vaccine NVX-CoV2373 in younger and older adults. medRxiv. 2021; doi: https://doi.org/10.1101/2021.02.26.21252482.
• Background Guebre-Xabier M, Patel N, Tian JH, Zhou B, Maciejewski S, Lam K, Portnoff AD, Massare MJ, Frieman MB, Piedra PA, Ellingsworth L, Glenn G, Smith G. NVX-CoV2373 vaccine protects cynomolgus macaque upper and lower airways against SARS-CoV-2 challenge. Vaccine. 2020 Nov 25;38(50):7892-7896. doi: 10.1016/j.vaccine.2020.10.064. Epub 2020 Oct 23.
• Background Heath PT, Galiza EP, Baxter DN, Boffito M, Browne D, Burns F, Chadwick DR, Clark R, Cosgrove C, Galloway J, Goodman AL, Heer A, Higham A, Iyengar S, Jamal A, Jeanes C, Kalra PA, Kyriakidou C, McAuley DF, Meyrick A, Minassian AM, Minton J, Moore P, Munsoor I, Nicholls H, Osanlou O, Packham J, Pretswell CH, San Francisco Ramos A, Saralaya D, Sheridan RP, Smith R, Soiza RL, Swift PA, Thomson EC, Turner J, Viljoen ME, Albert G, Cho I, Dubovsky F, Glenn G, Rivers J, Robertson A, Smith K, Toback S; 2019nCoV-302 Study Group. Safety and Efficacy of NVX-CoV2373 Covid-19 Vaccine. N Engl J Med. 2021 Sep 23;385(13):1172-1183. doi: 10.1056/NEJMoa2107659. Epub 2021 Jun 30.
• Background Keech C, Albert G, Reed P, et al, First-in-Human Trial of a SARS-CoV-2 Recombinant Spike Protein Nanoparticle Vaccine. medRxiv 2020.08.05.20168435; doi: https://doi.org/10.1101/2020.08.05.20168435.
• Background Liu YV, Massare MJ, Barnard DL, Kort T, Nathan M, Wang L, Smith G. Chimeric severe acute respiratory syndrome coronavirus (SARS-CoV) S glycoprotein and influenza matrix 1 efficiently form virus-like particles (VLPs) that protect mice against challenge with SARS-CoV. Vaccine. 2011 Sep 2;29(38):6606-13. doi: 10.1016/j.vaccine.2011.06.111. Epub 2011 Jul 14.
• Toback S, Marchese AM, Warren B, Ayman S, Zarkovic S, ElTantawy I, Mallory RM, Rousculp M, Almarzooqi F, Piechowski-Jozwiak B, Bonilla MF, Bakkour AE, Hussein SE, Al Kaabi N. Safety and immunogenicity of the NVX-CoV2373 vaccine as a booster in adults previously vaccinated with the BBIBP-CorV vaccine. Vaccine. 2024 Mar 7;42(7):1777-1784. doi: 10.1016/j.vaccine.2024.02.037. Epub 2024 Feb 15.

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