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Active clinical trials for "Meningococcal Infections"

Results 151-160 of 218

Persistence of Antibody Levels and Response to Fifth or Third Meningococcal B Recombinant Vaccine...

Meningococcal DiseaseMeningococcal Meningitis

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.

Completed19 enrollment criteria

Hepatitis B Vaccination in Infants

Meningococcal DiseasePneumococcal Disease4 more

In the UK, infants currently receive a 5-in-1 vaccine (Pediacel) at 2, 3 and 4 months of age, which protects against diphtheria, tetanus, pertussis (whooping cough), polio and Haemophilus influenzae type b (Hib). Infants also routinely receive a meningococcal group C vaccine (MenC) at 3 and 4 months and a 13-valent pneumococcal vaccine (Prevenar13) at 2 and 4 months of age. This study aims to offer infants a 6-in-1 vaccine (Infanrix-Hexa)that also helps protect against hepatitis B alongside the other routine vaccinations in the UK infant immunisation schedule and assess their immune responses to the different vaccines. Hepatitis B virus infects the liver and usually affects adults, but children can be infected through close contact with carriers of the virus. Children with hepatitis B infection may not have symptoms for many years but may go on to develop liver failure, cirrhosis and cancer. Many other countries already use Infanrix-Hexa and this study is being undertaken to help decide whether the UK can do the same. Babies taking part in this study will receive Infanrix-Hexa instead of Pediacel. All other vaccines given will be the same as in the routine schedule but will include one MenC vaccine instead of 2 doses because the UK infant immunisation schedule is soon going to change so that all babies will receive only one MenC vaccine at 3 months of age. There are currently several licensed MenC vaccines that can be given to babies. In order to check whether there are differences in protection, babies taking part will randomly receive one of 3 MenC-containing vaccines: NeisVacC, Menjugate or Menitorix. Studies have already shown that one dose of Neis-Vac or Menjugate given to babies at 3 months provides similar protection against MenC infection as two doses given at 3 and 4 months. Menitorix protects against both Hib and MenC, so babies in the group receiving MenitorixTM will have an extra dose of Hib which is also included in Infanrix-Hexa but might have a lower antibody response to MenC compared to the other two MenC vaccines, although all infants should be well-protected after their 12-month booster vaccinations, which also contain Menitorix.

Completed11 enrollment criteria

A Phase 3b, Single-Center, Open-label Study to Assess the Immunogenicity and Safety of Novartis...

Prevention of the Meningococcal Disease

The study will evaluate the immunogenicity and safety of the rMenB+OMV NZ in an adult population potentially at risk for meningococcal disease (e.g. lab workers).

Completed22 enrollment criteria

Assessing the Effectiveness, Immunogenicity and Safety of Meningococcal ABCWY Vaccine Administered...

Meningococcal Disease

This is extension of the V102_16 study (NCT02140762). V102_16E1 is designed to assess the effectiveness of a 3-dose vaccination series of MenABCWY, administered according to 0, 2, 6 month schedule, against the same panel of endemic US N. meningitidis serogroup B strains, as measured by enc-hSBA assay. The subjects who completed the parent V102_16 study will be invited at the time of their last study visit to participate in this extension study.

Completed3 enrollment criteria

Safety and Immunogenicity of Different Meningitis Vaccine Formulations in Adolescents and Young...

Invasive Meningococcal Disease

This study will evaluate the safety and immunogenicity of combination vaccines as compared to the reference vaccines

Completed9 enrollment criteria

Safety and Immunogenicity of 2 or 3 Doses of MenACWY Conjugate Vaccine in Healthy Infants and the...

Meningococcal DiseaseMeningococcal Meningitis

The purpose of this study was to assess immunogenicity of a 3-dose versus 4-dose infant vaccination schedule including kinetics of immune response in the early phases of the series.

Completed2 enrollment criteria

Study of a Single Dose of Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine (SP284)...

MeningitisMeningococcal Meningitis1 more

This study is designed to assess the safety and immunogenicity of a single dose of Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine (SP284) to support registration of the product in Japan. Primary Objective: To describe the seroprotection rate [% of subjects with serum bactericidal assay using baby rabbit complement (SBA-BR) ≥1:128] to meningococcal antigens (serogroups A, C, Y and W-135) following vaccination with SP284 vaccine in subjects 2 through 55 years of age Secondary Objectives: To describe the safety following receipt of SP284 vaccine in subjects 2 through 55 years of age To describe the immune responses to meningococcal antigens (serogroups A, C, Y and W-135) following vaccination with SP284 vaccine in subjects 2 through 55 years of age.

Completed24 enrollment criteria

Regulation of Mucosal Immune Response to Systemic MenB Vaccine

Meningococcal Infections

Meningitis or septicaemia (blood poisoning) caused by group B meningococcal infection (MenB) is an important cause of death and disability in the UK. Prevention through vaccination therefore remains a key public health priority. Research from national "meningitis" vaccine programmes against MenC, Hib and Streptococcus pneumoniae show us that their success is in part due to their ability to protect both the vaccinated and the unvaccinated, so-called herd immunity. This protection probably occurs by reducing carriage of these meningitis bacteria in the back of the throat (mucosal immunity). How this happens is poorly understood but our research shows that naturally acquired immunity (transient contact between the immune system and the meningococcus in the back of the throat without causing disease) may impact on this process. We believe that to develop a MenB vaccine that is able to cause mucosal immunity and prevent MenB carriage, it is important to understand the interaction between natural immunity and vaccination. In this study we propose to administer MenB vaccine to adults in order to investigate this process. Our findings will provide important insights into Men B immunity, inform the design of novel vaccine strategies and allow the rational testing of new vaccines as they become available.

Completed20 enrollment criteria

Co-administration of Meningococcal Vaccine GSK134612 and Pneumococcal Vaccine GSK1024850A vs Individual...

InfectionsMeningococcal

The purpose of this study is to demonstrate, in 12-23 months old subjects, the non-inferiority of meningococcal vaccine GSK134612 and pneumococcal vaccine GSK1024850A when co-administered, compared to each vaccine administered individually.

Completed20 enrollment criteria

Immunogenicity and Safety Study of GSK Biologicals' Meningococcal Vaccine GSK 134612 Versus Menactra®...

InfectionsMeningococcal

The purpose of this observer-blind study is to evaluate the safety and immunogenicity of GSK Biologicals' meningococcal vaccine GSK134612 as compared to Menactra® in subjects 10 through 25 years of age. In addition, this study will compare the immunogenicity of two lots of GSK 134612 vaccine.

Completed31 enrollment criteria
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