Improving Vaccine Protection for Adults

Summary

As people grow older, their immune system - the body's natural defence against diseases - becomes weaker, making them more vulnerable to infections and less responsive to vaccines. This was clearly seen during the COVID-19 pandemic, where older adults were more likely to develop severe illness. Researchers have made an interesting discovery about AS01, an ingredient already used in successful vaccines like the shingles vaccine. They found clues that AS01 might work like a general fitness trainer for the immune system, potentially making it stronger and better at fighting off various types of infections, not just specific ones. To confirm this possibility, we are conducting this research study with adults aged 21-59 to test whether AS01 by itself can boost and train the immune system, how long this boost lasts, and if it actually helps you fight off other infections more effectively.

Timeline

Start

2025-11-06

Primary completion

2029-02-28

Completion

2029-02-28

Publications

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• Background Smith CL, Richardson B, Rubsamen M, Cameron MJ, Cameron CM, Canaday DH. Adjuvant AS01 activates human monocytes for costimulation and systemic inflammation. Vaccine. 2024 Jan 12;42(2):229-238. doi: 10.1016/j.vaccine.2023.12.010. Epub 2023 Dec 7.
• Background Coccia M, Collignon C, Herve C, Chalon A, Welsby I, Detienne S, van Helden MJ, Dutta S, Genito CJ, Waters NC, Deun KV, Smilde AK, Berg RAVD, Franco D, Bourguignon P, Morel S, Garcon N, Lambrecht BN, Goriely S, Most RV, Didierlaurent AM. Cellular and molecular synergy in AS01-adjuvanted vaccines results in an early IFNgamma response promoting vaccine immunogenicity. NPJ Vaccines. 2017 Sep 8;2:25. doi: 10.1038/s41541-017-0027-3. eCollection 2017.
• Background Cunningham AL, Heineman TC, Lal H, Godeaux O, Chlibek R, Hwang SJ, McElhaney JE, Vesikari T, Andrews C, Choi WS, Esen M, Ikematsu H, Choma MK, Pauksens K, Ravault S, Salaun B, Schwarz TF, Smetana J, Abeele CV, Van den Steen P, Vastiau I, Weckx LY, Levin MJ; ZOE-50/70 Study Group. Immune Responses to a Recombinant Glycoprotein E Herpes Zoster Vaccine in Adults Aged 50 Years or Older. J Infect Dis. 2018 May 5;217(11):1750-1760. doi: 10.1093/infdis/jiy095.
• Background Walsh EE, Perez Marc G, Zareba AM, Falsey AR, Jiang Q, Patton M, Polack FP, Llapur C, Doreski PA, Ilangovan K, Ramet M, Fukushima Y, Hussen N, Bont LJ, Cardona J, DeHaan E, Castillo Villa G, Ingilizova M, Eiras D, Mikati T, Shah RN, Schneider K, Cooper D, Koury K, Lino MM, Anderson AS, Jansen KU, Swanson KA, Gurtman A, Gruber WC, Schmoele-Thoma B; RENOIR Clinical Trial Group. Efficacy and Safety of a Bivalent RSV Prefusion F Vaccine in Older Adults. N Engl J Med. 2023 Apr 20;388(16):1465-1477. doi: 10.1056/NEJMoa2213836. Epub 2023 Apr 5.
• Background Lal H, Cunningham AL, Godeaux O, Chlibek R, Diez-Domingo J, Hwang SJ, Levin MJ, McElhaney JE, Poder A, Puig-Barbera J, Vesikari T, Watanabe D, Weckx L, Zahaf T, Heineman TC; ZOE-50 Study Group. Efficacy of an adjuvanted herpes zoster subunit vaccine in older adults. N Engl J Med. 2015 May 28;372(22):2087-96. doi: 10.1056/NEJMoa1501184. Epub 2015 Apr 28.
• Background Cunningham AL, Lal H, Kovac M, Chlibek R, Hwang SJ, Diez-Domingo J, Godeaux O, Levin MJ, McElhaney JE, Puig-Barbera J, Vanden Abeele C, Vesikari T, Watanabe D, Zahaf T, Ahonen A, Athan E, Barba-Gomez JF, Campora L, de Looze F, Downey HJ, Ghesquiere W, Gorfinkel I, Korhonen T, Leung E, McNeil SA, Oostvogels L, Rombo L, Smetana J, Weckx L, Yeo W, Heineman TC; ZOE-70 Study Group. Efficacy of the Herpes Zoster Subunit Vaccine in Adults 70 Years of Age or Older. N Engl J Med. 2016 Sep 15;375(11):1019-32. doi: 10.1056/NEJMoa1603800.

Drugs

Indications

No indication recorded.