Active clinical trials for "Meningitis"

Haemophilus influenzae is an important pathogen which can cause primary infection and respiratory viral infection in infants and leaded to secondary infections. The infection of haemophilus is a major cause of morbidity and mortality in infants and children. At present, the developed conjugant Hib vaccine is proved to be safe and effective. Because Hib vaccine can prevent meningitis, pneumonia, epiglottis inflammation and other serious infection caused by Hib bacteria, the WHO suggested that Hib vaccine should be included in the infant's normal immune programming. Since the use of meningitis aureus polysaccharide vaccine, incidence of a disease in recent years is declined and maintain to the level of 0.5 per 1/100 thousand. But meningitis aureus polysaccharide vaccine with a relatively poor immune response in the infants under the age of two, and the remaining 60% with a low antibody level and a short duration. According to the present immunization schedule, to reach the median level of antibody levels there are at least 4 doses in need. So it is meaningful to improving vaccine immunogenicity, to provide high levels of long-term protection and to reduce the number of injections. After the phase I study which was conducted in August, 2011, the safety profile of this vaccine is proved to be acceptable. The phase III study is aimed to further evaluate the safety and the immunization of the vaccine. The objective of this study is to evaluate the safety of the group A, C polysaccharide meningococcal and type b haemophilus influenzal conjugate 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 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

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 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.

The study investigated safety profile and the antibody responses to an experimental tetravalent meningococcal diphtheria conjugate vaccine (Menactra®) in children who have received a monovalent meningococcal C conjugate vaccine at least one year previously. Primary objective: To describe and compare the Serum Bactericidal Assay (SBA) antibody response for serogroup C in participants receiving Menactra® to the serogroup C antibody response in a control group of participants receiving a licensed Haemophilus Influenzae Type b (Hib) conjugate vaccine 28 days following vaccination.

The purpose of this study was to evaluate the optimal vaccination schedule for a Quadrivalent Meningococcal Polysaccharide (A, C, Y and W-135) Tetanus Protein Conjugate Vaccine (MenACYW Conjugate vaccine) in order to provide an effective protein conjugate quadrivalent meningococcal vaccine in the population with the highest incidence of disease. Objectives: To describe the safety profile of MenACYW Conjugate vaccine administered at 5 different schedules and concomitantly with routine pediatric vaccinations. To describe the immunogenicity profile of MenACYW Conjugate vaccine administered at 5 different schedules and concomitantly with routine pediatric vaccinations. To describe the immunogenicity profiles of selected licensed pediatric vaccines (Pentacel, Prevnar, M-M-RII, and Varivax) when administered either concomitantly with or without MenACYW Conjugate vaccine.

The primary objective was to evaluate the persistence of bactericidal antibodies in children 40 and 60 months of age previously enrolled in the V59P14 (NCT00474526) study who received Novartis MenACWY Conjugate Vaccine. The study also enrolled age-matched subjects who have never received any meningococcal vaccine (naïve subjects) to serve as a control group. In addition, the response of a booster dose at 60 months was evaluated.

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.