View clinical trials related to Meningococcal Infections.
Filter by: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.
The purpose of this phase 2 study is to evaluate the safety, tolerability and immunogenicity of two doses of 4 different investigational MenABCWY combination vaccine when administered to healthy adolescents aged 11-18 years.
There is evidence of waning immunity in individuals vaccinated against meningitis C as part of the UK infant immunisation schedule. The intention of this study is to contact participants of a previous NVEC (National Vaccine Evalutaion Consortium) clinical trial (a PreSchool Men C trial, in which participants were randomised to receive Meningitec, Menjugate or Neisvac-C). They will be invited to enrol and will be randomised to receive one of two quadrivalent meningococcal ACWY vaccines, to look at the boosting effect they may confer.
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.
The purpose of the observer-blinded study is to determine the immunogenicity and safety of one dose of GlaxoSmithKline (GSK) Biologicals' meningococcal vaccine GSK 134612 compared to one dose of Mencevax™ ACWY in healthy subjects 18-25 years of age. In addition, this study will compare the immunogenicity of two lots of GSK's 134612 vaccine.
This was a Phase 2b/3, multi-center, extension study of V72P10 to assess antibody persistence at 18 months after the vaccination course in study V72P10 (NCT00661713). Subjects who participated in study V72P10, and who meet all other enrollment criteria for this extension study, and a group of naïve subjects (defined as subjects who had never received rMenB+OMV NZ or other experimental MenB vaccines) of similar age to the subjects who were eligible to participate in this extension study, performed one study visit in which a single blood sample was drawn for MenB serological analyses.
The purpose of this study is to evaluate immunogenicity and safety of meningococcal conjugate vaccine GSK134612 compared to the licensed vaccines MenC-CRM197 and MenC-TT in infants of 2 months of age. Pneumococcal conjugate vaccine and DTPa-HBV-IPV/Hib vaccines will be co-administered.
One year antibody persistence after the fourth dose boost or two catch-up doses administered starting from 12 months of age and to evaluate the response to a a third dose boost or two catch-up dose starting at 24 months of age.
Objectives: Meningococcal disease (MD) is a complex catastrophic phenomenon that can converge rapidly to irreversible septic shock, myocardial dysfunction, and profound coagulopathy. During meningococcal sepsis and meningitis, a myriad of cells release cytokines within the intravascular environment and subarachnoid space. Cytokines are key molecular messengers that play key roles in orchestrating and mediating the metabolic, endocrine and coagulation responses to meningococcal infection. The aim of the present study is to determine the profile of different cytokines in serum and cerebrospinal fluid during MD, as well as relate the level of these cytokines to severity of MD. Design: Prospective, nonrandomized study. Setting: Tertiary referral intensive care unit. Patients: Children and adults admitted with a clinical diagnosis of MD. Interventions: Blood and cerebrospinal fluid will sample from children and adults with MD.
This open label randomised controlled study will evaluate the induction of immunity following varying schedules of vaccination with glyco-conjugate Neisseria meningitidis serogroup C (MenC) vaccines in infancy. 498 infants will be enrolled in this multi-centre trial. Participants will receive either 0, 1, or 2 priming doses of a MenC-CRM197 conjugate vaccine or 1 priming dose of a MenC-TT conjugate vaccine in the first year of life, with all groups receiving a dose of a combination Hib-MenC-TT vaccine at 12 months, as well as all other concurrent routine vaccinations. All groups will also be further divided into 2 groups to receive their routine vaccines in either consistent or alternating limbs to assess the immune response to the concurrent infant routine immunisations administered in consistent versus alternating limbs. Immune responses will be assessed at 5, 12, 12months +6 days, 13 and 24 months of age.