View clinical trials related to Meningococcal Disease.
Filter by:It is a Phase 3 extension of study V72P12E1 (NCT00944034). The main aim of the second extension study is to explore the bactericidal antibody persistence in 4-year-old children after a fourth dose boost of rMenB+OMV NZ or after a two-dose catch-up schedule of rMenB+OMV NZ administered to toddlers as part of their respective vaccination courses in study V72P12E1. In addition, this study will characterize the antibody response to a fifth dose boost in all children who received a three-dose primary series of rMenB+OMV NZ at 2, 3, 4 months of age (in parent study V72P12, NCT00721396), and only in a subset of children who received a three-dose primary series of rMenB+OMV NZ at 2, 4, 6 months of age (in parent study V72P12). Antibody response will also be characterized to a third dose boost of rMenB+OMV NZ administered at approximately 4 years of age in all children who received a two catch-up doses of rMenB+OMV NZ as toddlers in study V72P12E1. Finally, the safety and immunogenicity of two catch-up doses of rMenB+OMV NZ administered 2 months apart to healthy naïve children at 4 years of age will be assessed.
This study was designed to conduct a comparative trial to further evaluate the safety, immunogenicity and antibody persistence of two doses of Novartis MenACWY conjugate vaccine, given 2 months apart, versus one dose of Novartis MenACWY conjugate vaccine in children 2 through 10 years of age.
The aim of the study is to assess safety and immunogenicity of a single dose of Menactra® in support of registration of the vaccine in South Korea. Primary Objective: - To demonstrate that the seroconversion rate is higher than 60% for serogroups A, C, Y and W-135, 28 days after a single dose of Menactra®. Secondary objectives: - To demonstrate the superiority of Menactra® versus Adacel® in terms of seroconversion rate for serogroups A, C, Y, and W-135, 28 days after a single dose of vaccine - To describe the safety profile after 1 dose of Menactra® or Adacel® vaccine. - To describe the Serum Bactericidal Assay Using Baby Rabbit (SBA-BR) Complement titers before and 28 days after a single dose of Menactra® or Adacel® vaccine.
The bacterium (germ) Neisseria meningitidis causes meningitis and blood poisoning. N meningitidis is classified into different serogroups (types), based on its outer polysaccharide (carbohydrate) capsule. Serogroups A,B,C,W & Y are responsible for the vast majority of meningococcal disease worldwide. Older vaccines against types A,C,W & Y contain part of the polysaccharide capsule of the germ. However, these polysaccharide vaccines do not provide long-term protection against disease and are less effective in young children, the group most at risk of meningococcal disease. Newer "conjugate" ACWY vaccines attach a polysaccharide to a protein carrier - these provoke a good response in young children and can provide long-term protection. White blood cells called B cells produce antibodies, which are the main components of protection against meningococcal disease. Although many studies have investigated the immune response to these vaccines in different age groups by measuring specific antibodies, there is limited information about the B cells underlying such an immune response. Several different subsets (populations) of B cells exist in the blood. Previous studies by the investigators group suggest that different numbers of B cells are produced in response to each vaccine type. However, little is understood about which subset of B cell is important for antibody production in response to these polysaccharide or conjugate vaccines. This study aims to provide detailed information on the immune response to meningococcal vaccines by investigating the appearance of B cells and their subsets in the blood after vaccination with the polysaccharide and conjugate vaccines. These observations will help us understand how polysaccharide and conjugate vaccines stimulate the immune system in different ways. This knowledge will help in the development of new vaccines that are effective across all age groups. The investigators aim to recruit 20 adults aged 30-70 from Oxfordshire. The study will be funded by the Oxford Vaccine Group.
The proposed study will evaluate the safety of the rMenB+OMV NZ in an adult population potentially at risk for meningococcal disease (e.g. lab workers). In the second part of the study additional blood samples of high responding vaccinated subjects will be collected for the purpose of generating a control serum panel for the human serum bactericidal assay (hSBA) tests.
This study compares the safety and immunogenicity profile of several travel vaccines given alone or concomitantly with MenACWY-CRM to healthy adults.
This study compares the safety and immunogenicity profile of combined hepatitis A/B vaccine given alone or concomitantly with MenACWY-CRM to healthy adults.
The purpose of this US FDA post-marketing commitment study is to evaluate the safety of MenACWY-CRM among 50.000 vaccinated adolescents within a large US Healthcare Maintenance Organization who received MenACWY-CRM vaccination as part of their routine clinical care. The pre-specified 26 events of interest are events commonly evaluated in vaccine safety studies and include certain neurological, immunological, vascular, musculoskeletal and hematologic disorders. All events are collected retrospectively.
The purpose of this study is to summarize the occurrence of incident serious medically attended events and events of interest up to 1 year following MenACWY-CRM vaccination administered as part of routine clinical care. This US FDA post-marketing commitment study is an open-label, descriptive, epidemiological safety surveillance study of MenACWY-CRM vaccine in subjects 2 to 10 years of age within a large US Healthcare Maintenance Organization. The 26 events of interest are events commonly evaluated in vaccine safety studies and include certain neurological, immunological, vascular, musculoskeletal and hematologic disorders. All events are collected retrospectively.
The study was to evaluate the safety and and immune response of each of three lots of Novartis Meningococcal C Conjugate Vaccine (MenC-CRM Liquid) when administered to Healthy Toddlers.