Study of an Investigational Quadrivalent Meningococcal Conjugate Vaccine Administered in Children Aged 2 to 9 Years

Summary

The purpose of the study was to evaluate the immunogenicity and describe the safety of Meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus Toxoid (MenACYW) Conjugate vaccine compared to the licensed Meningococcal (Groups A, C, Y and W 135) Oligosaccharide Diphtheria CRM197 (MENVEO®) vaccine in children 2 to 9 years of age in the United States (US) and Puerto Rico. 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 that observed following the administration of a single dose of MENVEO® in children aged 2 to 9 years. Secondary objectives: * To compare the serum bactericidal assay using human complement (hSBA) antibody geometric mean titers (GMTs) of meningococcal serogroups A, C, Y, and W following the administration of MenACYW Conjugate vaccine to those observed following the administration of MENVEO® in children 2 to 9 years of age. * To evaluate the hSBA antibody GMTs of meningococcal serogroups A, C, Y, and W following the administration of MenACYW Conjugate vaccine and those observed following the administration of MENVEO® in children 2 to 5 years of age, and in children 6 to 9 years of age, respectively. * To evaluate the hSBA vaccine seroresponse to meningococcal serogroups A, C, Y, and W before and 30 days (+14 days) post-vaccination in children 2 to 5 years of age, and in children 6 to 9 years of age, respectively. Observational objective: \- To describe the safety profile of MenACYW Conjugate vaccine and that of the licensed MENVEO®.

Timeline

Start

2017-02-17

Primary completion

2017-10-10

Completion

2017-10-10

Publications

• Baccarini CI, Simon MW, Brandon D, Christensen S, Jordanov E, Dhingra MS. Safety and Immunogenicity of a Quadrivalent Meningococcal Conjugate Vaccine in Healthy Meningococcal-Naive Children 2-9 Years of Age: A Phase III, Randomized Study. Pediatr Infect Dis J. 2020 Oct;39(10):955-960. doi: 10.1097/INF.0000000000002832.

Drugs

Indications