Active clinical trials for "Meningococcal Infections"

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.

Safety, Tolerability and Immunogenicity of Meningococcal C Conjugate Vaccine to Children 32 to 40 Months of Age

Immunogenicity, Safety and Tolerability, of Chiron Meningococcal C Conjugate Vaccine Administered to Healthy Premature and Non Premature Children of 3 months of age

The purpose of this primary vaccination study is to evaluate the immunogenicity, safety and reactogenicity of three doses of GSK Biologicals' MenC-TT (Neisseria meningitidis group C polysaccharide-tetanus toxoid) vaccine (2 different formulations) and of three doses of GSK Biologicals' Hib-MenC-TT (Haemophilus influenzae type b-MenC-TT) vaccine (2 different formulations) when given to infants in their 3rd, 4th, and 5th months of life. Concomitant vaccines were given to all children to complete the vaccination agenda.

The purpose of this booster vaccination study is to evaluate the persistence and immune memory induced by a three-dose primary vaccination course with GSK Biologicals' MenC-TT (Neisseria meningitidis group C polysaccharide-tetanus toxoid) and GSK Biologicals' Hib-MenC-TT (Haemophilus influenzae type b-MenC-TT) or Meningitec™ vaccines in healthy toddlers aged 12-15 months by giving them a 1/5th dose of Mencevax™ ACWY.

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.

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 3 doses of the meningococcal serogroup B vaccine when given, using either a 0-2-4 month or a 0-1-6 month schedule, to healthy adolescents aged 12-18 years; a control group will receive 2 doses of Havrix™ (0-6 months) and Meningitec™ (month 1).

MenACWY (Menveo) is a GSK vaccine intended for protection against disease caused by meningococcal bacteria groups A, C, W and Y in infants, children and adults, licensed in more than 60 countries. The purpose of this study is to compare the immunogenicity of the currently licensed MenACWY vaccine with the investigational MenACWY liquid vaccine.

This is a Phase 2/3, randomized, observer blind, multi-centre, controlled study to evaluate the safety, immune response and consistency of immune response of three consecutively manufactured lots of NmCV-5 in healthy individuals between the ages of 18 to 85 years (both inclusive). The immune response of NmCV-5 will also be statistically compared against a licensed conjugate vaccine against ACYW (Menactra). A total of 1640 subjects 18 to 85 years of age will be accrued contemporaneously across three age groups - 18 to 29 years, 30 to 60 years, and 61 to 85 years. Within each age group subjects will be randomly assigned in a 3:1 ratio to receive either NmCV-5 or Menactra. The NmCV-5 subjects in 18-29 year age group will be further randomized 1:1:1 into three different lots (Lot A, B & C) of NmCV-5. All the randomized subjects will receive a single dose of 0.5 ml of NmCV-5 or Menactra on Day 1. Post vaccination site visits are planned on Days 8, 29 and 180 and a telephonic call at Day 85.