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Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine Administered Concomitantly With Routine Pediatric Vaccines in Healthy Infants and Toddlers

Phase 3
Completed
Conditions
Healthy Volunteers (Meningococcal Infection)
Registration Number
NCT03691610
Lead Sponsor
Sanofi Pasteur, a Sanofi Company
Brief Summary

The primary objective of this study is to demonstrate the non-inferiority of the vaccine seroresponse to meningococcal serogroups A, C, Y, and W following administration of 2 doses of MenACYW conjugate vaccine compared to 2 doses of MENVEO® when given concomitantly with routine pediatric vaccines to infants and toddlers 6 to 7 months of age and 12 to 13 months of age.

The secondary objectives of the study are:

* To demonstrate the non-inferiority of the percentage of participants with antibody titers to meningococcal serogroups A, C, Y, and W ≥ 1:8 following administration of 2 doses of MenACYW conjugate vaccine compared to 2 doses of MENVEO® when given concomitantly with pediatric routine vaccines to infants and toddlers at 6 to 7 months of age and 12 to 13 months of age.

* To describe the antibody response against meningococcal serogroups A, C, Y, and W 30 days after the second vaccination at 12 to 13 months of age with MenACYW conjugate vaccine or MENVEO®.

* To describe the antibody response against meningococcal serogroups A, C, Y, and W 30 days and 6 months after the first vaccination at 6 to 7 months of age with MenACYW conjugate vaccine or MENVEO®.

* To describe the antibody response against meningococcal serogroups A, C, Y, and W 30 days after the second vaccination at 20 to 23 months of age with MenACYW conjugate vaccine or Menactra®.

Detailed Description

Study duration per participant is approximately 1 year in Group 1 and Group 2, and 10 months in Group 3 and Group 4. This duration includes a safety follow-up contact at 6 months after the last vaccination.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
950
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Primary Outcome Measures
NameTimeMethod
Infants Groups 1 and 2: Percentage of Participants With Vaccine Seroresponse Measured by Serum Bactericidal Assay Using Human Complement (hSBA) at 30 Days Post Second Dose of MenACYW Conjugate Vaccine or MENVEOBaseline (Day 0) and 30 days post second dose (12 to 13 MoA) of MenACYW conjugate vaccine or MENVEO, maximum of 14 months

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. The hSBA vaccine seroresponse was defined as a post-vaccination titer \>= 1:16 for participants with pre-vaccination hSBA titer \< 1:8, or a post-vaccination titer \>= 4-fold increase from baseline for participant with pre-vaccination hSBA titer \>= 1:8.

Secondary Outcome Measures
NameTimeMethod
Infants Groups 1 and 2: Percentage of Participants Who Achieved Antibody Titer (Seroprotection) >=1:8 by hSBA at 30 Days Post Second Dose of MenACYW Conjugate Vaccine or MENVEOAt 30 days post second dose (12 to 13 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Seroprotection rate was defined as percentage of participants with hSBA titers \>= 1:8.

Infants Groups 1 and 2: Percentage of Participants With Vaccine Seroresponse Measured by hSBA at 30 Days Post First Dose of MenACYW Conjugate Vaccine or MENVEOAt 30 days post first dose (6 to 7 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA vaccine seroresponse which was defined as \>= 4-fold increase from baseline (pre-vaccination) were analyzed.

Infants Groups 1 and 2: Percentage of Participants With hSBA Antibody Titer >= 1:4 and >= 1:8PPAS1: At 30 days post first dose (6 to 7 MoA); PPAS2: At Baseline (pre-dose on Day 0) and 30 days post second dose (12 to 13 MoA); and PPAS3: At 6 months post first dose (6 to 7 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 1:4 and \>= 1:8 were analyzed. PPAS1= Per-Protocol Analysis Set 1; FAS1= Full analysis set 1; PPAS3= Per-Protocol Analysis Set 3; and FAS3= Full analysis set 3.

Infants Groups 1 and 2: Geometric Mean Titers Against Meningococcal Serogroups A, C, W, and YPPAS1: At 30 days post first dose (6 to 7 MoA); PPAS2: At Baseline (pre-dose on Day 0) and 30 days post second dose (12 to 13 MoA); and PPAS3: At 6 months post first dose (6 to 7 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA and the results were expressed as geometric mean titers.

Infants Groups 1 and 2: Percentage of Participants With hSBA Antibody Titer >= 4-Fold Rise From Pre-Vaccination to Post-VaccinationPPAS1: At 30 days post first dose (6 to 7 MoA); and PPAS2: At 30 days post second dose (12 to 13 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 4-fold increase from baseline (pre-vaccination) were analyzed.

Infants Groups 1 and 2: Percentage of Participants With hSBA Antibody Titer >=1:4 to >= 1:128PPAS1: At 30 days post first dose (6 to 7 MoA); PPAS2: At Baseline (pre-dose on Day 0) and 30 days post second dose (12 to 13 MoA); and PPAS3: At 6 months post first dose (6 to 7 MoA) of MenACYW conjugate vaccine or MENVEO

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 1:4 to \>= 1:128 were analyzed.

Toddlers Groups 3 and 4: Geometric Mean Titers Against Meningococcal Serogroups A, C, W, and YBaseline (Day 0) and 30 days post second dose (20 to 23 MoA) of MenACYW conjugate vaccine or Menactra

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA and the results were expressed as geometric mean titers.

Toddlers Groups 3 and 4: Percentage of Participants With hSBA Antibody Titer >= 1:4 to >= 1:128Baseline (Day 0) and at 30 days post second dose (20 to 23 MoA) of MenACYW conjugate vaccine or Menactra

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 1:4 to \>= 1:128 were analyzed.

Toddlers Groups 3 and 4: Percentage of Participants With hSBA Antibody Titer >= 4-Fold Rise From Pre-Vaccination to Post-VaccinationAt 30 days post second dose (20 to 23 MoA) of MenACYW conjugate vaccine or Menactra

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 4-fold increase from baseline (pre-vaccination) were analyzed.

Toddlers Groups 3 and 4: Percentage of Participants With hSBA Antibody Titer >= 1:4 and >= 1:8Baseline (Day 0) and 30 days post second dose (20 to 23 MoA) of MenACYW conjugate vaccine or Menactra

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA titers \>= 1:4 and \>= 1:8 were analyzed.

Toddlers Groups 3 and 4: Percentage of Participants With Vaccine Seroresponse Measured by hSBA at 30 Days Post Second Dose of MenACYW Conjugate Vaccine or MenactraAt 30 days post second dose (20 to 23 MoA) of MenACYW conjugate vaccine or Menactra

Functional meningococcal antibody activity against serogroups A, C, Y, and W were measured in a serum bactericidal assay utilizing the hSBA. Participants with hSBA vaccine seroresponse which was defined as \>= 4-fold increase from baseline (pre-vaccination) were analyzed.

Trial Locations

Locations (47)

Alabama Clinical Therapeutics Site Number : 8400036

🇺🇸

Birmingham, Alabama, United States

Southeastern Pediatric Associates Site Number : 8400009

🇺🇸

Dothan, Alabama, United States

MedPharmics, LLC - Phoenix Site Number : 8400013

🇺🇸

Phoenix, Arizona, United States

Emmaus Research Center, Inc Site Number : 8400019

🇺🇸

Anaheim, California, United States

Coast Clinical Trials, LLC Site Number : 8400073

🇺🇸

Bellflower, California, United States

Matrix Clinical Research Site Number : 8400082

🇺🇸

Gardena, California, United States

Madera Family Med Group Site Number : 8400065

🇺🇸

Madera, California, United States

Next Phase Research Alliance Site Number : 8400044

🇺🇸

Homestead, Florida, United States

PAS Research Site Number : 8400101

🇺🇸

Land O' Lakes, Florida, United States

Axcess Medical Research Site Number : 8400021

🇺🇸

Loxahatchee Groves, Florida, United States

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Alabama Clinical Therapeutics Site Number : 8400036
🇺🇸Birmingham, Alabama, United States

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