Study to Evaluate Meningococcal Serogroups A,C,W-135,Y Conjugate Vaccine When Given as 1 Dose to Healthy Subjects Aged 18-25 Years
The purpose of this study is to evaluate the safety, reactogenicity, immunogenicity and persistence up to three years after administration of one dose of the MenACWY conjugate vaccine when given to young adults aged 18-25 years.
Meningococcal Serogroup Diseases
Biological: Meningococcal (vaccine)
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
|Official Title:||Assess the Safety, Reactogenicity, Immunogenicity & Long-term Persistence of One Intramuscular Dose of GSK Biologicals' MenACWY Conjugate Vaccine vs One Subcutaneous Dose of Mencevax™ ACWY in Healthy Adults Aged 18-25 Yrs|
- The occurrence of any grade 3 solicited symptoms within 8 days (day 0-7) following vaccination. [ Designated as safety issue: No ]
- Sol (d 0-7, local&general), unsol (d 0-30) symptoms. SAEs. Routine blood & urine examination before, 2&7 d post vacc. % SBA-MenA C W Y responders 1m post vacc. Antibodies to MenA C W Y before, 1, 12, 24&36m post vacc & tetanus before, 1m post vacc [ Designated as safety issue: No ]
|Study Start Date:||September 2003|
|Study Completion Date:||September 2006|
|Primary Completion Date:||October 2003 (Final data collection date for primary outcome measure)|
Administration of the candidate vaccine or of the active control (Mencevax™ ACWY) will be done in an open manner. The study consists of a vaccination phase during which subjects receive one vaccine dose (GSK's MenACWY conjugate vaccine or Mencevax™ ACWY vaccine) and 3 years of follow-up. There are in total 7 visits to the doctor: before and 2, 7 and 30 days after vaccination (vaccination phase) as well as 12, 24 and 36 months after vaccination (follow-up phase). 7 blood samples are taken: one at each visit.