دورية أكاديمية
Persistence of bactericidal antibodies following booster vaccination with 4CMenB at 12, 18 or 24months and immunogenicity of a fifth dose administered at 4years of age-a phase 3 extension to a randomised controlled trial.
| العنوان: | Persistence of bactericidal antibodies following booster vaccination with 4CMenB at 12, 18 or 24months and immunogenicity of a fifth dose administered at 4years of age-a phase 3 extension to a randomised controlled trial. |
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| المؤلفون: | Iro, M, Snape, M, Voysey, M, Jawad, S, Finn, A, Heath, P, Bona, G, Esposito, S, Diez-Domingo, J, Prymula, R, Odueyungbo, A, Toneatto, D, Dull, P, Pollard, A, Group,, European Men B Vaccine Study |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2016 |
| المجموعة: | Oxford University Research Archive (ORA) |
| الوصف: | Background 4CMenB is immunogenic in infants and toddlers. We assessed persistence of human complement serum bactericidal activity (hSBA) following a fourth dose administered at 12, 18 or 24 months and characterised the antibody response to a fifth dose administered at 4 years of age. Methods A phase 3, open label, multi-centre extension to a randomised controlled trial conducted in four countries (number of centres): Czech Republic (nineteen), Italy (four), Spain (four) and the United Kingdom (four). Four-year-old children who were either 4CMenB-naïve or had previously received a variety of 3-dose infant priming schedules and a booster vaccine as toddlers (follow-on group) were recruited. Venous blood samples were obtained to determine hSBA against four reference strains; acting as targets to assess immunity to each of the vaccine antigens, NadA (5/99), fHbp (H44/76), PorA (NZ98/254), and NHBA (M10713) at baseline (prior to vaccination, all participants) and one month following a dose of 4CMenB for all vaccine-naïve and follow-on participants primed with the 2, 3, 4 schedule, and a third of follow-on participants primed with a 2, 4, 6 month schedule Results At baseline (prior to vaccination), the proportion of participants (n = 468) with hSBA titers P 5 was similar across all followon groups: 89–100% against 5/99; 12–35% for H44/76; 8–12% for NZ98/254 and 53–80% for M10713 compared with 5%, 0%, 0%; and 60% respectively, for the vaccinenaïve controls (n = 206). Following a dose of 4CMenB at 4 years of age, this increased to 100% (5/99), 97–100% (H44/76), 80–95 % (NZ98/254) and 84–100% (M10713) (n = 210), compared with 89%, 70%, 24%, and 76% respectively for vaccine-naïve controls (n = 192). Conclusion Waning of protective antibodies occurred 12–36 months after toddler booster regardless of age at boost. This was least marked against target strains 5/99 and M10713. A robust memory response occurred after a booster dose given at 4 years of age. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | https://ora.ox.ac.uk/objects/uuid:98f24bef-54ae-45ec-b655-fb404d45c648Test; https://doi.org/10.1016/j.vaccine.2016.11.009Test |
| DOI: | 10.1016/j.vaccine.2016.11.009 |
| الإتاحة: | https://doi.org/10.1016/j.vaccine.2016.11.009Test https://ora.ox.ac.uk/objects/uuid:98f24bef-54ae-45ec-b655-fb404d45c648Test |
| حقوق: | info:eu-repo/semantics/openAccess ; CC Attribution (CC BY) |
| رقم الانضمام: | edsbas.547A6954 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.vaccine.2016.11.009 |
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