View clinical trials related to Infections, Meningococcal.
Filter by:This study will investigate the long-term protection offered by GSK Biologicals' meningococcal vaccine 134612 up to 3.5 years after vaccination. Subjects were vaccinated at 15 to 19 years of age. This extension phase starts 18 months after vaccination and part of the subjects who were vaccinated in the primary study will be enrolled in this extension phase. No new subjects will be enrolled. This protocol posting deals with objectives & outcome measures of the extension phase 18, 30 and 42 months after vaccination. The objectives & outcome measures of the primary phase are presented in a separate protocol posting (NCT00126945). The Protocol Posting has been updated in order to comply with the FDA Amendment Act, September 2007.
Meningococcal disease is mostly caused by N. meningitidis of serogroups A, B, C, W-135, Y. Meningococcal polysaccharide-conjugate vaccines have the advantage to induce a T-cell dependant immune response while the existing polysaccharide vaccines induce a T-cell independent response, i.e. with no immune memory response. GSK Biologicals has developed a combined Men ACWY conjugate vaccine intended to protect against meningococcal disease due to serogroups A, C, W-135 and Y. In the vaccination phase of this study, the new MenACWY-TT conjugate vaccine will be evaluated in adolescents and adults using Mencevax™ ACWY as control. In the long-term follow-up phase (extension phase) of the study, the long-term protection offered by the new MenACWY-TT conjugate vaccine will be assessed up to five years after the vaccination in adolescents and adults using Mencevax™ ACWY as control. This protocol posting deals with objectives & outcome measures of both the primary & extension phases.
The purpose of this study is to assess the safety and reactogenicity of a booster dose of diphtheria-tetanus-whole cell pertussis-hepatitis B virus/Haemophilus influenzae type b vaccine (DTPw-HBV/Hib) at 15-18 m and to assess the immunogenicity, safety, and reactogenicity of a dose of Mencevax™ Group A, C and W135 polysaccharide meningococcal vaccine (ACW) at 24 to 30 m in primed subjects. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.
This study will be conducted in three stages. In the DTP booster stage at 15 to 24 months of age, all subjects will receive a booster dose of Tritanrix™-HepB/Hiberix™. In the Mencevax™ ACWY "full dose" stage at 24 to 30 months of age all subjects will receive a dose of Mencevax™ ACWY. In the Mencevax™ ACWY "small dose" stage at 30 to 36 months of age, the first 75 subjects in each of the two centers will be tested for boostability of the MenA and MenC immune response by giving a fifth of a dose of a Mencevax™ ACWY vaccine. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.
GlaxoSmithKline Philippines has submitted a registration file for its Purified Meningococcal Polysaccharide of Serogroup ACWY Vaccine (Mencevax ACWY). This study is being conducted to collect clinical data in the local target population in order to assess the occurrence of rare adverse events after vaccination as per the requirement of Philippines Bureau of Food and Drugs Directive.
Hypothesis: Lower doses of each A/C/Y/W135 component of the meningococcal polysaccharide vaccine could confer a similar functional immunogenic response as the dose of 50 μg currently being used, and subsequently be equally protective. The purpose of this study is to evaluate the use of fractional dose tetravalent meningococcal polysaccharide vaccine to control outbreak especially caused by N. meningitidis serogroup W135 Primary Objectives: - To measure the immunogenicity of a dose corresponding to one fifth of the amount of the licensed meningococcal A/C/Y/W135 polysaccharide vaccine, i.e. 10 μg for each component; and - To measure the immunogenicity of a dose corresponding to one tenth of the licensed meningococcal A/C/Y/W135 polysaccharide vaccine, i.e. 5 μg for each component.
The purpose of this study is to evaluate that the vaccine produced with the new process and administered as a single dose is at least as good as the existing Mencevax™ ACWY vaccine in terms of immunogenicity, safety and reactogenicity, in healthy subjects aged 2-30 years.
The purpose of this study is to evaluate the immunogenicity, safety and reactogenicity of one dose of four different formulations of the MenACWY conjugate vaccine when given to healthy children aged 12-14 months and 3-5 years. The selection of the best formulation will be based on data obtained up to one month after the vaccine dose. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.
The purpose of this study is to evaluate the immunogenicity, safety and reactogenicity of one dose of four different formulations of the MenACWY conjugate vaccine when given to healthy subjects aged 15-19 years. The selection of the best formulation will be based on data obtained up to one month after the vaccine dose.
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.