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Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adults 56 Years and Older

Meningitis Clinical Trial

Official title:
Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adults Age 56 Years and Older

Clinical Trial Summary

The aim of the study was to demonstrate non-inferiority of immunogenicity and evaluate the safety of a single dose of Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid conjugate vaccine (MenACYW conjugate vaccine) compared to a single dose of Meningococcal Polysaccharide Vaccine Serogroups A, C, Y, and W-135 Combined (Menomune® - A/C/Y/W-135) in adults 56 years of age and older in the United States. Primary objective: -To demonstrate the non-inferiority of the vaccine seroresponse to meningococcal serogroups A, C, Y, and W following the administration of a single dose of MenACYW conjugate vaccine compared to those observed following the administration of a single dose of Menomune® - A/C/Y/W-135. Secondary objective: -To compare the serum bactericidal assay using human complement (hSBA) antibody geometric mean titers of meningococcal serogroups A, C, Y, and W following the administration of MenACYW conjugate vaccine to those observed following the administration of Menomune® - A/C/Y/W-135. Observational objectives: - To describe antibody titers against meningococcal serogroups A, C, Y, and W measured by hSBA at baseline (before vaccination) and 30 days after vaccination with MenACYW conjugate vaccine or Menomune® - A/C/Y/W-135 in a subset of 100 participants per treatment group. - To describe the safety profile of MenACYW conjugate vaccine compared to that of the licensed Menomune® - A/C/Y/W-135 after a single administration.

Clinical Trial Description

Participants were randomized in a 1:1 ratio to receive a single dose of MenACYW conjugate vaccine or Menomune® - A/C/Y/W-135 on Day 0 (Visit 1). Participants underwent immunogenicity assessment at baseline (pre-vaccination) and at 30 to 44 days post-vaccination and were also evaluated for safety up to Day 180 post-vaccination. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02842866
Study type Interventional
Source Sanofi
Contact
Status Completed
Phase Phase 3
Start date July 15, 2016
Completion date February 13, 2017
View Details
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