Study on a Quadrivalent Meningococcal Conjugate Vaccine (MenACYW Conjugate Vaccine) Compared to a Meningococcal Reference Vaccine, and When Given Alone or With Two Other Vaccines in Healthy Adolescents

Healthy Volunteers Clinical Trial

Official title: Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine Versus Nimenrix®, and When Administered Alone or Concomitantly With 9vHPV and Tdap-IPV Vaccines in Healthy Adolescents

Status Completed

Clinical Trial Summary

Primary Objective:

To demonstrate the non-inferiority of the seroprotection rate (serum bactericidal assay using human complement [hSBA] titer greater than or equal to [>=] 1:8) to meningococcal serogroups A, C, W, and Y following the administration of a single dose of Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate vaccine (MenACYW Conjugate vaccine) (Group 1) compared to a single dose of Nimenrix® (Group 2).

Secondary Objective:

To describe:

• the antibody response of meningococcal serogroups A, C, W, and Y measured by hSBA, before and 1 month following meningococcal vaccination administered alone (Groups 1 and 2) or concomitantly with 9-valent human papilloma virus (9vHPV) and tetanus, diphtheria, and acellular pertussis - inactivated polio vaccine [adsorbed, reduced antigen(s) content] (Tdap-IPV) vaccines (Group 3).

• the antibody response of meningococcal serogroup C measured by hSBA and serum bactericidal assay using baby rabbit complement (rSBA), before vaccination and at Day 31 after vaccination with MenACYW Conjugate vaccine or Nimenrix® (Groups 1 and 2) according to MenC primed status.

• the antibody response against antigens of 9vHPV and Tdap-IPV vaccines, before and 1 month following vaccination.

• the safety profile in each group after each and any vaccination.

Clinical Trial Description

The duration of study participation for each participant was approximately 30 to 60 days, including 2 or 3 visits (1 or 2 vaccination visit) and 1 or 2 telephone calls, depending on study Group.

• This was the first dose of 9vHPV, of the 2-dose or 3-dose series according to the local recommendations and age of the participant. These additional vaccinations for the completion of 9vHPV schedule took place outside of the objectives and scope of this study and thus were not described in this protocol. ;

Related Conditions & MeSH terms

• Healthy Volunteers
• Meningococcal Immunisation

• NCT number: NCT04490018
• Study type: Interventional
• Source: Sanofi
• Status: Completed
• Phase: Phase 3
• Start date: March 16, 2021
• Completion date: May 11, 2022