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A parallel-group, prevention, Phase III, modified double-blind, 2-arm, study to investigate the immunogenicity and describe the safety of a quadrivalent meningococcal conjugate vaccine (MenACYW conjugate vaccine) compared with Nimenrix® when administered in a 1+1 schedule in healthy infants and toddlers at 6 and 12 months of age

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-508177-85-00
Acronym
MEQ00089
Enrollment
840
Registered
2024-02-13
Start date
2024-03-12
Completion date
Unknown
Last updated
2026-01-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy volunteers (Meningococcal infection)

Brief summary

Geometric mean titers (GMTs) of Antibodies against meningococcal serogroups A, C, W and Y, Vaccine Seroresponse to meningococcal serogroups A, C, W and Y assessed by hSBA

Detailed description

hSBA antibody titers ≥ 1:8 against meningococcal serogroups A, C, W, and Y, hSBA antibody titers against meningococcal serogroups A, C, W, and Y, hSBA antibody titers ≥ several pre-defined thresholds against meningococcal serogroups A, C, W, and Y, Percentage of Participants who achieved ≥4-fold rise in antibody titers over baseline measured by hSBA, hSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse, Rabbit complement (rSBA) antibody titers against meningococcal serogroups A, C, W, and Y, rSBA antibody titers ≥ several pre-defined thresholds against meningococcal serogroups A, C, W, and Y, Percentage of Participants who achieved ≥4-fold rise in antibody titers over baseline measured by rSBA, rSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse, Number of participants with immediate adverse events (AEs), Number of participants with solicited injection site reactions or systemic reactions, Number of participants with unsolicited AEs, Number of participants with serious adverse events (SAEs)

Interventions

Sponsors

Sanofi Pasteur
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 17 Years

Design outcomes

Primary

MeasureTime frame
Geometric mean titers (GMTs) of Antibodies against meningococcal serogroups A, C, W and Y, Vaccine Seroresponse to meningococcal serogroups A, C, W and Y assessed by hSBA

Secondary

MeasureTime frame
hSBA antibody titers ≥ 1:8 against meningococcal serogroups A, C, W, and Y, hSBA antibody titers against meningococcal serogroups A, C, W, and Y, hSBA antibody titers ≥ several pre-defined thresholds against meningococcal serogroups A, C, W, and Y, Percentage of Participants who achieved ≥4-fold rise in antibody titers over baseline measured by hSBA, hSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse, Rabbit complement (rSBA) antibody titers against meningococcal serogroups A, C, W, and Y, rSBA antibody titers ≥ several pre-defined thresholds against meningococcal serogroups A, C, W, and Y, Percentage of Participants who achieved ≥4-fold rise in antibody titers over baseline measured by rSBA, rSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse, Number of participants with immediate adverse events (AEs), Number of participants with solicited injection site reactions or systemic reactions, Number of participants with unsolicited AEs, Number of participants wi

Countries

Czechia, Denmark, Finland, Germany, Poland, Romania

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026