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Showing 1-6 of 6 trials
NCT07365826
This is a Phase 3, randomized, double-blind study to evaluate the safety and immunogenicity of VAX-31 and seasonal influenza vaccine in pneumococcal-naïve adults ≥ 50 years when the two vaccines are administered at the same visit or separately.
NCT06703203
The purpose of this experiment is to evaluate the safety and immunogenicity of the 26 valent pneumococcal conjugate vaccine in the population aged 2 months and above.
NCT06000397
The goal of this clinical trial is to assess the effectiveness of enhanced email reminders in improving vaccine coverage at the 12-month visit in CANImmunize app users. The main questions it aims to answer are: * Do enhanced email reminders improve coverage of the 12- month dose of the pneumococcal vaccine and the timely completion of its immunization series at the 12-month's visit in CANImmunize app users? * What are the predictors of predictors of timely completion of the 12-month's series of pneumococcal vaccines in the CANImmunize app users? Participants will be randomized to either receive enhanced reminder/recall materials via email or the standard CANImmunize notifications. Researchers will compare the enhanced reminder group to the standard notification group to see if there is a difference in vaccine coverage at the 12-month visit.
NCT03893448
The purpose of this study is to evaluate the safety, tolerability, and immunogenicity of V114 in healthy infants. The primary hypotheses are that: 1) V114 is non-inferior to Prevnar 13™ for the 13 shared serotypes between V114 and Prevnar 13™ based on response rates at 30 days following Dose 3; 2) V114 is non-inferior to Prevnar 13™ for the 2 unique V114 serotypes based on the response rate of the 2 unique V114 serotypes compared with the lowest response rate of any of the shared serotypes in Prevnar 13™, excluding serotype 3, at 30 days following Dose 3; 3) V114 is non-inferior to Prevnar 13™ for the 13 shared serotypes based on anti-pneumococcal polysaccharide (PnPs) serotype-specific immunoglobulin g (IgG) geometric mean concentrations (GMCs) at 30 days following Dose 3; 4) V114 is non-inferior to Prevnar 13™ for the 2 unique V114 serotypes based on the anti-PnPs serotype-specific IgG GMCs of the 2 unique V114 serotypes compared with the lowest IgG GMC of any of the shared serotypes in Prevnar 13™, excluding serotype 3, at 30 days following Dose 3; 5) V114 is non-inferior to Prevnar 13™ for the 13 shared serotypes between V114 and Prevnar 13™ based on anti-PnPs serotype-specific IgG GMCs at 30 days following Dose 4; and 6) V114 is non-inferior to Prevnar 13™ for the 2 unique V114 serotypes based on anti-PnPs serotype-specific IgG GMCs of the 2 unique V114 serotypes compared with the lowest IgG GMC of any of the shared serotypes in Prevnar 13, excluding serotype 3, at 30 days following Dose 4.
NCT02012309
Human Immunodeficiency Virus (HIV) infection is complicated by high rates of infections and cancers which are often the cause of death rather than the HIV/acquired immune deficiency syndrome (AIDS) virus itself. Treatment of HIV with antiretroviral medications has decreased the frequency of many complications by over 90%, but bacterial pneumonia remains extremely high. Current vaccines are not very effective in preventing these infections in patients with HIV infection. The investigators are studying the cells (B cells) that make antibodies to fight infection by binding to and killing bacteria. The goal is to understand how HIV impairs the ability of B cells to make antibodies in sufficient quantity and of sufficient quality to protect patients with HIV to learn how to enhance protection against these infections. The investigators also seek to understand the role of the bacteria (specifically Streptococcus pneumoniae) that normally live in the nose and throat in the development of pneumonia and other infections.
NCT00824655
The purposes of this study are to evaluate the safety of 13-valent pneumococcal Conjugate Vaccine (13vPnC) in children who have already been vaccinated with Prevenar. The study will also assess the immunological response (measure the amount of antibodies, i.e. proteins that fight off germs) produced by children after they have been given the 13-valent pneumococcal vaccine at 5 and 12 months or 12 months of age. In addition, reactions at the injection site will be assessed during the study.