Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine

Authors
Category Primary study
Registry of Trialsclinicaltrials.gov
Year 2016
The aim of the study was to describe the safety and antibody response to booster administration with Meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus Toxoid (MenACYW) Conjugate vaccine in participants who received their first quadrivalent meningococcal Conjugate vaccine dose in the past 4-10 years. Primary Objective: * To demonstrate the non-inferiority of the vaccine seroresponse of meningococcal serogroups A, C, Y, and W following the administration of a booster dose of MenACYW Conjugate vaccine compared to those observed following the administration of a booster dose of Menactra® in participants who were first vaccinated with 1 dose of a quadrivalent meningococcal vaccine 4 to 10 years before the booster dose. Secondary Objectives: * To evaluate the vaccine seroresponse of meningococcal serogroups A, C, Y, and W measured using human serum bactericidal assay (hSBA) in serum specimens collected 6 days after vaccination in a subset of 120 participants. * To evaluate the antibody responses (geometric mean titers) to serogroups A, C, Y, and W measured using hSBA on Day 0 (pre-vaccination) and Day 30 after vaccination. Observational Objectives: * To describe the antibody titers against meningococcal serogroups A, C, Y, and W measured by hSBA assessed at Day 0, Day 6, and Day 30 days after vaccination. * To describe the antibody responses to the meningococcal serogroups A, C, Y, and W before and 30 days after vaccination with MenACYW Conjugate vaccine or Menactra® measured by rabbit serum bactericidal assay (rSBA) in a subset of participants. * To describe the safety profile of MenACYW Conjugate vaccine compared to that of a licensed Menactra® after booster vaccination.
Epistemonikos ID: 74d76cb02d038173e4d79562b02661695194b7b9
First added on: May 13, 2024