A Phase IIIb, Open-Label, Controlled, Multi-Center Study to Evaluate the Persistence Of Antibody Responses Among Children Who Previously Received Novartis MenACWY Conjugate Vaccine or Meningococcal C Conjugate Vaccine
Overview
- Phase
- Phase 3
- Intervention
- Not specified
- Conditions
- Meningococcal Disease
- Sponsor
- Novartis Vaccines
- Enrollment
- 205
- Locations
- 11
- Primary Endpoint
- Geometric Mean Titers in Children,One Month After MenACWY-CRM Booster Vaccination
- Status
- Completed
- Last Updated
- 7 years ago
Overview
Brief Summary
The primary purpose of this study is to evaluate the persistence of bactericidal antibodies in children of approximately 22 to 45 months of age previously enrolled in the V59P22 study (NCT00667602) who received Novartis MenACWY Conjugate Vaccine or Meningococcal C Conjugate Vaccine. This is measured by percentage of subjects with human Serum Bactericidal Assay (hSBA) titers ≥ 1:8 directed against Neisseria meningitidis serogroups A, C, W-135, and Y. In addition the response one month post an additional dose of Novartis MenACWY will be measured by percentage of subjects with hSBA titers ≥ 1:8 and GMTs.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Children eligible to be enrolled in the study were those
- •whose parents provide written informed consent;
- •were in generally good health based on the clinical judgment of the investigators;
- •subjects were 22-45 months of age at the time of enrollment into V59P22E1;
- •subject who had participated in the parent V59P22 study.
Exclusion Criteria
- •Main exclusion criteria:
- •Subjects with serious, acute, or chronic illnesses
- •Subjects who had received any other licensed vaccines within 28 days (Exception: Influenza vaccine was allowed up to 14 days prior to and no less than 14 days after the study immunization) prior to enrolment and any study visit
- •Subjects who had received any Meningococcal vaccine since the study dose of MenACWY or Men C at 12 months of age in V59P22 trial.
Outcomes
Primary Outcomes
Geometric Mean Titers in Children,One Month After MenACWY-CRM Booster Vaccination
Time Frame: 1 month post booster vaccination
The serum antibody titers following a booster dose of MenACWY-CRM conjugate vaccine in children, who had previously received either one or two doses of the same vaccine in the parent study, are reported as geometric mean titers (GMTs) against N. meningitidis serogroups A,C, W,Y.
Percentage of Subjects With Persisting Serum Bactericidal Antibody Titers ≥1:8, Upto 13-33 Months After Primary Vaccination With Either MenACWY-CRM or MenC Vaccine
Time Frame: From 13-33 months post last vaccination in parent study (V59P22)
The percentage of subjects with persisting serum bactericidal antibody (hSBA)titers ≥1:8 against Neisseria meningitidis serogroups A,C,W,Y, 13-33 months after receiving either one or two doses of MenACWY-CRM conjugate vaccine or one dose of MenC vaccine in parent study, is reported. The functional bactericidal antibodies response against N. meningitidis serogroups was measured with the serum bactericidal assay using human complement (hSBA)
Percentage of Subjects With Serum Bactericidal Antibody Titers ≥1:8, One Month After MenACWY-CRM Booster Vaccination
Time Frame: 1 month post booster
The serum antibody response following a booster dose of MenACWY-CRM conjugate vaccine in children, who had previously received either one or two doses of the same vaccine in the parent study, is reported as percentage of subjects with hSBA titers ≥1:8 against N. meningitidis serogroups A,C,W,Y.
Percentage of Subjects (Who Had Previously Received MenC Vaccine) With Serum Bactericidal Antibody Titers ≥ 1:8, After One Dose of MenACWY-CRM Vaccination
Time Frame: 1 month after vaccination
The serum antibody response following a dose of MenACWY-CRM conjugate vaccine in children, who had previously received one dose of MenC vaccine in the parent study, is reported as percentage of subjects with hSBA titers ≥1:8 against N. meningitidis serogroups A,C, W,Y
Geometric Mean Titers in Children (Who Previously Received MenC Vaccine) One Month After One Dose of MenACWY-CRM Vaccine
Time Frame: 1 month post vaccination
The serum antibody titers following one dose of MenACWY-CRM conjugate vaccine in children, who had previously received one dose of MenC vaccine in the parent study, are reported as GMTs against N. meningitidis serogroups A,C,W,Y
Secondary Outcomes
- Persisting Geometric Mean Titers in Children, 13-33 Months After Primary Vaccination With Either MenACWY-CRM or MenC Vaccine(From 13-33 months post last vaccination in parent study (V59P22))
- Percentage of Subjects With Serum Bactericidal Titers ≥1:8, Who Previously Received 1 Primary Dose of Either MenACWY-CRM or Men C Vaccine(1 month post vaccination)
- Geometric Mean Titers Following One Dose of MenACWY-CRM Vaccine in Children Who Previously Received 1 Primary Dose of Either MenACWY-CRM or Men C Vaccine(1 month post vaccination)
- Number of Children Reporting Solicited Local and Systemic Adverse Events (AEs) After MenACWY-CRM Vaccination(Day 1-7 after vaccination)
- Number of Children Reporting Unsolicited Adverse Events After MenACWY-CRM Vaccination(Day 1-28 after vaccination)