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Safety Study of Group A, C, Y & W-135 Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine for Meningitis

Meningococcal Meningitis Clinical Trial

Official title:
A Double-Blind, Randomized, Controlled, Two Arm Phase 1 Clinical Trial of the Safety and Immunogenicity of Group A, C, Y & W-135 Meningococcal Polysaccharide DT Conjugate Vaccine: NmVac4-A/C/Y/W-135-DT™

Clinical Trial Summary

The purpose of this study is to evaluate the safety of a new conjugate vaccine, NmVac4-A/C/Y/W-135-DT, compared to the safety of a similar, licensed meningococcal A/C/Y/W-135-DT conjugate vaccine. The investigators will also evaluate the production of antibodies to of NmVac4-A/C/Y/W-135-DT™ conjugate vaccine compared to the licensed vaccine, as a measure of vaccine effectiveness.

Clinical Trial Description

Meningococcal disease is a potentially life-threatening bacterial infection. The disease most commonly is expressed as either meningococcal meningitis, an inflammation of the membranes surrounding the brain and spinal cord, or meningococcemia, the presence of bacteria in the blood. The most common symptoms include high fever, headache, neck stiffness, confusion, nausea, vomiting, lethargy, and rash. If not treated the disease can progress rapidly and can lead to shock and death, often within hours of the onset of symptoms. Neisseria meningitidis capsular polysaccharides are poor immunogens. However, conjugation of bacterial polysaccharides to immunogenic carrier proteins generally results in conjugates that induce strong anti-polysaccharide T-helper cell dependent immune responses, creating a longer-lasting immune response and thus protection against meningococcal infection. This study compares safety and antibody production induced by one intramuscular injection of either NmVac4-A/C/Y/W-135-DT or a licensed meningococcal A/C/Y/W-135-DT conjugate vaccine. Participants will attend a screening visit up to 4 weeks prior to Day 0, then will attend study visits for 8 weeks. There will be a study phone call at Days 2-3, then a post-study telephone call to subjects to assess safety at 26 weeks. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01482052
Study type Interventional
Source JN-International Medical Corporation
Contact
Status Completed
Phase Phase 1
Start date November 2011
Completion date January 2013
View Details
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