Active clinical trials for "Meningitis"

Clinical trial phase I, randomized, double blind, where 30 individuals will receive the experimental vaccine while 30 other volunteers will receive a meningococcal C conjugate vaccine already licensed in Brazil and available in the National Immunization Program for children less than 12 months of age. The primary outcome of the study is to evaluate the safety profile of the vaccine under test, which should allow its application in humans. Secondly, the investigators will study its immunogenicity from the evaluation of the correlates of seroprotection for meningococcal, defined by the World Health Organization (WHO).

The purpose of this trial is to describe antibody persistence and response to re-vaccination with either Menactra® or Menomune® vaccine approximately three years following initial vaccination in adults who participated in trial MTA29 (NCT00874549). Objectives: To describe the rates of immediate reactions, solicited injection-site and systemic reactions, all unsolicited adverse events, and serious adverse events following vaccination. To evaluate persistence of serum bactericidal antibodies in subjects who received Menactra® or Menomune® vaccine approximately three years ago. To evaluate the immune response to serogroups A, C, Y, and W-135 in subjects re-vaccinated with either Menactra® or Menomune® vaccine.

Primary objective: To assess the immunogenicity of the Mencevax ACW135 polysaccharide vaccine at 28 days (+6days) post vaccination in 2-4, 5-14, 15-29 year age groups and compare the immunogenicity between these age groups. Secondary Objectives: To estimate the incidence of common adverse events following immunization (AEFI) of GSK Nm ACW135 polysaccharide vaccine at 1h, 1d, 2d, 3d, 7d and 28 days post-vaccination To assess the persistence of antibody against meningitis A, C and W135 at 11 and 23 months post vaccination in 2-4, 5-14, 15-29 year age groups Study site:Two rural communities (Kebele) in Butajira district, Ethiopia. Methods: Phase II, open and parallel safety and immunogenicity trial. 234 younger children (2-4 years), 145 older children (5-14 years) and 33 adults (15-29 years of age) were randomly selected from the demographic surveillance database and enrolled after screening and consenting. Study participant received Mencevax ACW polysaccharide vaccine 50 mg in 0.5ml subcutaneously. Blood samples for measuring SBA titres were collected at pre vaccination and on day 28 (+6 days) post vaccination. Active follow up for AEFI on post vaccination day 0, 1, 2, 3, 7, & 28. Primary end point was vaccine response defined as sero-conversion (in subjects initially seronegative) or a 4 fold increase (in subjects initially seropositive) in serum bactericidal antibodies (SBA) against serogroups Men A, C and W135) on post vaccination day 28. In addition seroconversion was assessed by ELISA Men A IgG on day 0 and day 28 post vaccination. Secondary endpoints were incidence of general and local symptoms and other adverse events following immunisation during the post vaccination period day 0 to 28 and immune persistence on post vaccination month-11 and month-23. Results: No significant difference in the incidence of general or local AEFI was observed between the age groups The statistical analysis for the Immunogenicity data is in progress

The primary objective of this phase 3b study is to evaluate the safety and tolerability of Novartis MenACWY conjugate vaccine when administered with routine infant vaccinations to healthy infants

The primary objective is to evaluate the persistence of bactericidal antibodies in adolescents previously enrolled in the V59P13 study who received either Novartis MenACWY Conjugate Vaccine or commercially available MenACWY conjugate vaccine. The study will also enroll age-matched subjects who have never received any other meningococcal vaccine (naïve subjects) to serve as an additional control group.

The objective of this trial is to study the administration of the Menomune vaccine given intradermally and low-dose subcutaneously versus standard subcutaneously. This study will describe the immunogenicity of Menomune® - A/C/Y/W-135 administered subcutaneously (standard dose) versus intradermally over a dose range (1/10th, 2/10th, and 3/10th of standard dose) and a low dose (2/10th of standard dose) subcutaneously. The secondary objective is to describe the safety of the subcutaneous (SC) and intradermal (ID) routes at different dosages

To compare the functional immune response 28 days after administration of one dose of Men ACWY-CRM conjugate vaccine without adjuvant (MenACWY-CRM(Ad-)) with that of a Men ACWY polysaccharide (PS) vaccine

Data from this study are expected to demonstrate that V501 (Human Papillomavirus (HPV) [Types 6, 11, 16, 18] Recombinant Vaccine) , when administered concomitantly with a combined diphtheria, tetanus, pertussis (Tdap) vaccine and a meningococcal conjugate vaccine in adolescents remains immunogenic and well-tolerated and it does not impair the immunogenicity of the concomitant vaccines.

Immunogenicity and Safety of the Concomitant Administration of a Tdap Vaccine and Meningococcal ACWY Conjugate Vaccine in Healthy Subjects Aged 11-25 Years

The purpose of this study was to evaluate the immunogenicity and safety of the concomitant administration of Menactra® vaccine and Tdap vaccine in adolescents aged 11 to 17 years. Primary Objective: To determine whether concomitant administration of two vaccines, Tdap and Menactra®, induces antibody responses that are similar to those observed when each vaccine is given separately. Secondary Objective: To compare the rates of injection site reactions at the Tdap injection site after Tdap and Menactra® vaccines are administered concomitantly to the corresponding rates of reactions when Tdap vaccine is administered alone.