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| Description
| - The licensed meningococcal serogroup B vaccine, 4CMenB (Bexsero (R)), contains recombinant membrane proteins (rMenB) and outer membrane vesicles (OMV) of the New Zealand serogroup B strain. We investigated whether reducing the OMV and/or protein content influences 4CMenB immunogenicity and reactogenicity in healthy two month-old infants. Six formulations were studied: 4CMenB, rMenB with 0, 1/4 or 1/2 the OMV dose in 4CMenB, a half-dose of 4CMenB or a prelicensure formulation of 4CMenB, as a 4-dose primary/booster series, concomitantly with routine vaccines (DTaP-HBV-IPV/Hib and 7-valent pneumococcal conjugate) at 2, 3, 4 and 12 months of age. Immunogenicity was assessed as serum bactericidal activity measured with human complement (hSBA) against indicator strains for Men B vaccine antigens before and after the 2,3,4-month series and 12-month dose. Parents recorded solicited reactions for 7 days after each vaccination, and any adverse events throughout the study period. All formulations elicited robust immune response against rMenB components at 5 months, there was some evidence of OMV and protein dose-dependence for Men B indicator strains tested. Titers waned up to the 12-month dose, which elicited further strong responses, which were still OMV and protein dose-dependent. Groups with no, or low-dose OMV displayed slightly lower reactogenicity profiles, but all formulations were generally well-tolerated, high fever was rare and transient, and only three transient SAEs were considered possibly vaccine-related. Decreasing or removing the OMV content reduced reactogenicity of 4CMenB to a certain extent, but had an unacceptable negative impact on the immunogenicity profile.
- The licensed meningococcal serogroup B vaccine, 4CMenB (Bexsero (R)), contains recombinant membrane proteins (rMenB) and outer membrane vesicles (OMV) of the New Zealand serogroup B strain. We investigated whether reducing the OMV and/or protein content influences 4CMenB immunogenicity and reactogenicity in healthy two month-old infants. Six formulations were studied: 4CMenB, rMenB with 0, 1/4 or 1/2 the OMV dose in 4CMenB, a half-dose of 4CMenB or a prelicensure formulation of 4CMenB, as a 4-dose primary/booster series, concomitantly with routine vaccines (DTaP-HBV-IPV/Hib and 7-valent pneumococcal conjugate) at 2, 3, 4 and 12 months of age. Immunogenicity was assessed as serum bactericidal activity measured with human complement (hSBA) against indicator strains for Men B vaccine antigens before and after the 2,3,4-month series and 12-month dose. Parents recorded solicited reactions for 7 days after each vaccination, and any adverse events throughout the study period. All formulations elicited robust immune response against rMenB components at 5 months, there was some evidence of OMV and protein dose-dependence for Men B indicator strains tested. Titers waned up to the 12-month dose, which elicited further strong responses, which were still OMV and protein dose-dependent. Groups with no, or low-dose OMV displayed slightly lower reactogenicity profiles, but all formulations were generally well-tolerated, high fever was rare and transient, and only three transient SAEs were considered possibly vaccine-related. Decreasing or removing the OMV content reduced reactogenicity of 4CMenB to a certain extent, but had an unacceptable negative impact on the immunogenicity profile. (en)
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| Title
| - A phase 2 randomized controlled trial of a multicomponent meningococcal serogroup B vaccine, 4CMenB, in infants (II) Effects of variations of the OMV and protein content on immunogenicity and reactogenicity
- A phase 2 randomized controlled trial of a multicomponent meningococcal serogroup B vaccine, 4CMenB, in infants (II) Effects of variations of the OMV and protein content on immunogenicity and reactogenicity (en)
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| skos:prefLabel
| - A phase 2 randomized controlled trial of a multicomponent meningococcal serogroup B vaccine, 4CMenB, in infants (II) Effects of variations of the OMV and protein content on immunogenicity and reactogenicity
- A phase 2 randomized controlled trial of a multicomponent meningococcal serogroup B vaccine, 4CMenB, in infants (II) Effects of variations of the OMV and protein content on immunogenicity and reactogenicity (en)
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| skos:notation
| - RIV/00216208:11150/14:10283199!RIV15-MSM-11150___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00216208:11150/14:10283199
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - outer membrane vesicles; vaccination; serogroup B; meningococcal; infants (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Human Vaccines and Immunotherapeutics
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Prymula, Roman
- Esposito, Susanna
- Toneatto, Daniela
- Barone, Michelangelo
- Dull, Peter M.
- Xie, Fang
- Zuccotti, Gian Vincenzo
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| http://linked.open...ain/vavai/riv/wos
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
| |
| http://localhost/t...ganizacniJednotka
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