Safety, Tolerability and Immunogenicity of Meningococcal B Recombinant Vaccine Administered as Bo… (NCT00944034) | Clinical Trial Compass
CompletedPhase 2/3
Safety, Tolerability and Immunogenicity of Meningococcal B Recombinant Vaccine Administered as Booster Dose at 12, 18 or 24 Months of Age in Toddlers (12-24 Months) Primed With a Three-Dose Immunization Series as Infants in Study V72P12
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.
Who can participate
Age range
12 Months – 24 Months
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
Follow-on participants of V72P12:
Healthy toddlers who completed Study V72P12, aged:
* 12 months or older - Groups 1a, 2a, 3a, 4
* 18 months (0/ +29 days window) - Groups 1b, 2b, 3b
* 24 months (0/ +29 days window) - Groups 1c, 2c, 3c
Naive subjects newly enrolled:
* Group 5: healthy 18-month-old toddlers (0/ +29 days window)
* Group 6: healthy 24-month-old toddlers (0/ +29 days window)
Exclusion Criteria:
* History of any meningococcal B vaccine administration (only for groups 5 and 6);
* Previous ascertained or suspected disease caused by N. meningitidis;
* History of severe allergic reaction after previous vaccinations or hypersensitivity to any vaccine component;
* Significant acute or chronic infection within the previous 7 days or axillary temperature major or equal to 38 degrees within the previous day
* Antibiotics within 6 days prior to enrollment;
* Any serious chronic or progressive disease;
* Known or suspected impairment or alteration of the immune system;
* Receipt of blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
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.