This extension study V72P12E1 will investigate the safety, tolerability and immunogenicity of a fourth (booster) dose of rMenB+OMV NZ at 12, 18 and 24 months of age in subjects previously primed with rMenB+OMV NZ according to two different three-dose immunization schedules in infancy (2, 4 and 6 or 2, 3 and 4 months of age in the parent study V72P12). The study will also explore the bactericidal antibody persistence at 12, 18 and 24 months of age, following the two different immunization schedules, in order to identify the optimal timing for boosting. Two catch-up rMenB+OMV NZ doses will be given to unprimed, naïve toddlers at 12 (subjects enrolled in the control group of V72P12), 18 and 24 months of age (two new cohort of subjects enrolled). These subjects will generate data for assessing the safety and immunogenicity of a two-dose catch-up regimen at these ages, but will also serve as controls for a descriptive comparison of antibody persistence and booster responses for the other groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
1,588
rMenB+OMV NZ with routine vaccinations at 2, 4, and 6 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 12 months of age
rMenB+OMV NZ with routine vaccinations at 2, 4, and 6 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 18 months of age
rMenB+OMV NZ at 2, 4, and 6 months of age and routine vaccinations at 3, 5 and 7 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 12 months of age
rMenB+OMV NZ at 2, 4, and 6 months of age and routine vaccinations at 3, 5 and 7 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 18 months of age
rMenB+OMV NZ with routine vaccinations at 2, 3 and 4 months of age; random allocation in a 1:1:1 ratio to receive 1 booster dose of rMenB+OMV NZ at 12 months of age
rMenB+OMV NZ with routine vaccinations at 2, 3 and 4 months of age; random allocation in a 1:1:1 ratio to receive 1 booster dose of rMenB+OMV NZ at 18 months of age
two catch-up doses of rMenB+OMV NZ at 12 and 14 months of age.
rMenB+OMV NZ with routine vaccinations at 2, 4, and 6 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 24 months of age
two catch-up doses of rMenB+OMV NZ at 18 and 20 months of age
rMenB+OMV NZ at 2, 4, and 6 months of age and routine vaccinations at 3, 5 and 7 months of age; random allocation in a 1:1:1 ratio to receive a booster dose of rMenB+OMV NZ at 24 months of age
two catch-up doses of rMenB+OMV NZ at 24 and 26 months of age
rMenB+OMV NZ with routine vaccinations at 2, 3 and 4 months of age; random allocation in a 1:1:1 ratio to receive 1 booster dose of rMenB+OMV NZ at 12 (Group 3a), 18 (Group 3b) or 24 (Group 3c) months of age
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Avenue Albert 1er 185, 5000 Namur, Belgium
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Avenue Hippocrate 10, 1200 Brussels, Belgium
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Laarbeeklaan 101, 1090 Brussels, Belgium
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Lindendreef 1, 2020 Antwerpen, Belgium
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Sint Vincentiusstraat 20, 2018 Antwerpen, Belgium
Percentages of Subjects With Serum Bactericidal Antibody Titers ≥1:5 After Receiving a Fourth (Booster) Dose of rMenB+OMV NZ Vaccination in Subjects Who Previously Received 3 Doses of rMenB+OMV NZ and Routine Vaccines at 2, 4 and 6 Months of Age.
Immunogenicity was assessed in terms of percentage of subjects with serum bactericidal antibody (SBA) titers ≥1:5 (98.3% CI) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99, one month after the fourth (booster) dose of meningococcal B vaccine at 12 or 18 or24 months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ and routine vaccines at 2, 4 and 6 months of age.
Time frame: 1 month after booster
Percentages of Subjects With SBA Titers ≥1:5 After Receiving a Fourth (Booster) Dose of rMenB+OMV NZ Vaccination in Subjects Who Previously Received 3 Doses of rMenB+OMV NZ at 2, 4 and 6 Months of Age and Routine Vaccines at 3, 5 and 7 Months of Age.
Immunogenicity was assessed in terms of Percentages of Subjects With SBA Titers ≥1:5 (98.3% CI), After Receiving a Fourth (Booster) Dose of rMenB+OMV NZ Vaccination in subjects who previously received 3 doses of rMenB+OMV NZ at 2, 4 and 6 months of age and routine vaccines at 3, 5 and 7 months of age.
Time frame: 1 month after booster
Percentages of Subjects With Serum Bactericidal Antibody Titers ≥1:5 After Receiving a Fourth (Booster) Dose of rMenB+OMV NZ Vaccination in Subjects Who Previously Received 3 Doses of rMenB+OMV NZ and Routine Vaccines at 2, 3 and 4 Months of Age.
Immunogenicity was assessed in terms of percentage of subjects with serum bactericidal antibody (SBA) titers ≥1:5 (98.3% CI) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99, one month after the fourth (booster) dose of meningococcal B vaccine at 12 or 18 or24 months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ and routine vaccines at 2, 3 and 4 months of age.
Time frame: 1 month after booster
Geometric Mean Titers (GMTs) in Subjects One Month After Receiving a Fourth (Booster) Dose of rMenB+OMV NZ Vaccination in Subjects at 12 18 or 24 Months of Age Who Previously Received 3 Doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 Months of Age.
The serum antibody titers one month after the fourth (booster) dose of meningococcal B vaccine at 12 or 18 or24 months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 months of age, are reported as geometric mean titers (GMTs) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99.
Time frame: 1 month after booster
GMTs in Subjects One Month After the Fourth (Booster) Dose of Meningococcal B Vaccine at 12 Months of Age Previously Vaccinated With 3 Doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 Months of Age and Single Dose of rMenB+OMV NZ Given at Same Age
Characterization of immunological memory by serum antibody titers (98.3% CI) one month after the fourth (booster) dose of meningococcal B vaccine at 12 months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 months of age and single dose of rMenB+OMV NZ given at same ages, are reported as geometric mean titers (GMTs) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99.
Time frame: 1 month after booster
GMTs in Subjects One Month After the Fourth (Booster) Dose of Meningococcal B Vaccine at 18 and 24months of Age, Previously Vaccinated With 3 Doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 Months of Age and Single Dose of rMenB+OMV NZ Given at Same Age
Characterization of immunological memory by serum antibody titers one month after the fourth (booster) dose of meningococcal B vaccine at 18 and 24months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ at 2, 3 and 4 or 2, 4 and 6 months of age and single dose of rMenB+OMV NZ given at same ages, are reported as geometric mean titers (GMTs) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99.
Time frame: 1 month after booster
Two-dose Catch-up Regimen of rMenB+OMV NZ in Unprimed Toddlers Aged 12, 18 or 24 Months
Immunogenicity evaluation of a two-dose catch-up regimen of rMenB+OMV NZ in unprimed toddlers aged 12, 18 or 24 months as measured by serum antibody titers one month after the second vaccination f meningococcal B vaccine at 18 and 24months of age who were previously vaccinated with 3 doses of rMenB+OMV NZ reported as geometric mean titers (GMTs) against N.meningitidis serogroup reference strains H44/76, NZ98/254 and 5/99.
Time frame: 1 month after second vaccination
Geometric Mean Concentrations Against Vaccine Antigen 287- 953 One Month After Fourth Booster Dose to Previously Primed Toddlers at 12, 18 or 24 Months of Age.
Immunogenicity evaluation against vaccine antigen 287-953 one month after fourth booster dose to previously primed toddlers at 12, 18 or 24 months measured by ELISA.
Time frame: 1 month after booster vaccination
Geometric Mean Concentrations Against Vaccine Antigen 287- 953 One Month After Booster Given After a Two-dose Catch-up Regimen in Toddlers Starting at 12, 18 or 24 Months of Age.
Immunogenicity evaluation against vaccine antigen 287-953 one month after booster given after a two-dose catch-up regimen in toddlers starting at 12, 18 or 24 months of age.one month after fourth booster dose to previously primed toddlers at 12, 18 or 24 months of age measured by ELISA
Time frame: 1 month after booster vaccination
Number of Children Reporting Solicited Local and Systemic Adverse Events After Receiving a Fourth Booster Dose of rMenB+OMV NZ Vaccine at 12, 18 or 24 Months of Age.
The safety and tolerability of the 4th booster dose rMenB+OMV NZ vaccine in children (12, 18 or 24 months age) is reported as number of subjects with solicited local and systemic adverse events.
Time frame: From day 1 to day 7 after vaccination
Number of Children Reporting Solicited Local and Systemic Adverse Events After Receiving a Two-dose Catch-up Regimen of rMenB+OMV NZ Vaccine at 12, 18 or 24 Months of Age.
The safety and tolerability of the two-dose catch-up regimen of rMenB+OMV NZ vaccine in children (12, 18 or 24 months age) is reported as number of subjects with solicited local and systemic adverse events.
Time frame: day 1 to day 7 after vaccination
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Unnamed facility
Stadsomvaart 11, 3500 Hasselt, Belgium
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Wilrijkstraat 10, 2650 Edegem, Belgium
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Červený Kostelec, Czechia
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Kyjevska 44, 532 03 Pardubice, Czechia
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Ruskych Legii 352, 377 01 Jindrichuv Hradec, Czechia
...and 62 more locations