Active clinical trials for "Meningococcal Infections"

To evaluate the immune response and safety following a single dose of Novartis Meningococcal ACWY conjugate vaccine (MenACWY-CRM) in healthy children, adolescents and adults in Russia.

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 purpose of this study is to evaluate the long-term antibody persistence as well as safety of GSK Biologicals' MenACWY-TT vaccine versus Meningitec up to 6 years after booster vaccination administered in healthy 5 year old children in the study MENACWY-TT-048 EXT: 039 Y2, 3, 4, 5 (NCT00955682), who were primed with the same vaccine in the study MENACWY-TT-039 (NCT00474266) at 12 through 23 months of age.

The purpose of this extension study is to evaluate the immunogenicity and safety of a booster dose of a MenABCWY vaccine, administered 24 months after completion of the primary vaccination series, in subjects who previously received the same vaccine formulation in study V102_03 (NCT01272180) (Groups I and II). Antibody persistence at 24 and 36 months after the primary vaccination and 12 months after the booster dose will also be evaluated in these subjects. In addition, safety and immunogenicity of two investigational MenABCWY vaccine formulations (either a MenABCWY+ OMV or a MenABCWY+¼ OMV) will be assessed in subjects who previously received two doses of MenB vaccine (Group III) or one dose of Menveo vaccine (Group IV). These subjects will be followed for safety and immunogenicity for 12 months after vaccination in study V102_03E1.

The purpose of this study is to evaluate the long-term antibody persistence from 6, 7, 8, 9 to 10 years post-administration of MenACWY-TT conjugate vaccine as compared to Mencevax ACWY when given to healthy subjects 11 to 55 years of age. In addition, the safety and immunogenicity of a booster dose of MenACWY-TT vaccine administered to all eligible subjects 10 years after the primary vaccination will be evaluated. All Filipino subjects who received the primary vaccination in the primary vaccination study 107386 (NCT00356369) will be invited to enrol in the long-term follow up and booster phase. No new subjects will be enrolled.

The purpose of this study is to evaluate the long-term antibody persistence 6, 7, 8, 9 and 10 years after receiving a primary vaccination of meningococcal conjugate vaccine MenACWY-TT versus Meningitec™ or Mencevax™ ACWY, and the safety and immunogenicity of a booster dose of MenACWY-TT administered 10 years after the primary vaccination. All subjects received a primary vaccination at 1 to 10 years of age in study 108658 (NCT00427908). No new subjects will be enrolled in this booster study.

The purpose of the study was to evaluate the immunogenicity and describe the safety of Meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus Toxoid (MenACYW) Conjugate vaccine compared to the licensed vaccine MENVEO® in adolescents 10 to 17 years of age in the United States (US). This study also evaluated the immunogenicity and safety of MenACYW Conjugate vaccine when given alone compared to when given concomitantly with tetanus, diphtheria, acellular pertussis (Tdap) vaccine and human papilloma virus (HPV) vaccine. Primary objective: To evaluate the antibody responses to the antigens present in MenACYW Conjugate vaccine when MenACYW Conjugate vaccine was given alone compared to those when MENVEO vaccine was given alone. Secondary objective: To evaluate the antibody responses to the antigens present in MenACYW Conjugate vaccine, when MenACYW Conjugate vaccine was given concomitantly with Tdap and HPV vaccines, compared to those when it was given alone. To evaluate the antibody responses to the antigens present in Tdap vaccine, when Tdap vaccine was given concomitantly with MenACYW Conjugate vaccine and HPV vaccine, compared to those when Tdap vaccine was given with HPV vaccine only. To evaluate the antibody responses to the antigens present in HPV vaccine after the 3-dose series, when the first dose of HPV vaccine is given concomitantly with MenACYW Conjugate vaccine and Tdap vaccine, compared to those when the first dose of HPV vaccine is given with Tdap vaccine only. Observational objective: To describe the safety profile of MenACYW Conjugate vaccine, compared to that of the licensed vaccine MENVEO®, and when MenACYW Conjugate vaccine was given with Tdap and HPV vaccines.

This study evaluates the immunogenicity and safety of the meningococcal conjugate vaccine GSK 134612 given as single dose to healthy adults 56 years or older compared to the meningococcal polysaccharide vaccine MencevaxACWYTM.

This study compares the safety and immunogenicity profile of several travel vaccines given alone or concomitantly with MenACWY-CRM to healthy adults.

The primary objective of this study is to demonstrate the equivalence of rMenB+OMV NZ lot 1 to rMenB+OMV NZ lot 2 when administered to adolescents, as measured by human serum bactericidal activity (hSBA) geometric mean titers (GMTs) against 3 N. meningitidis serogroup B reference strains (H44/76, 5/99, and NZ98/254) and as measured by ELISA geometric mean concentrations (GMCs) against vaccine antigen 287-953, approximately 30 days after a primary vaccination course of two doses administered one month apart.