7 Clinical Trials for Various Conditions
To monitor the occurrence of invasive Hib disease over time and to determine product-specific rates of invasive Hib disease within the monitored population.
Objectives: * To present the rates of adverse reactions after a dose of DAPTACEL® vaccine administered to children 4 to 6 years of age who have previously received four doses of PENTACEL™ vaccine. * To present immunogenicity before and after a single dose of DAPTACEL® vaccine administered to children 4 to 6 years of age who have previously received four doses of PENTACEL™ vaccine.
This study is designed to evaluate in a controlled manner the effect of Prevnar® on the immune responses of Pentacel™ Primary Objective - Stage I: To compare the immune responses elicited by an infant series of Pentacel™ when given at different times from or concurrently with a Pneumococcal conjugate vaccine (Prevnar®). Primary Objective - Stage II: To compare the immune responses elicited by a 4th dose of Pentacel™ when given at different times from or concurrently with Prevnar®.
The main goal of this study is to compare the Haemophilus influenzae type b antibody response in American Indian / Alaska Native (AI/AN) infants to two licensed vaccines: Vaxelis and PedvaxHIB.
The purpose of this study is to evaluate safety, to demonstrate lot-to-lot consistency of the vaccine, to address the relevant concomitant vaccine administrations and to provide a comparison between GSK Biologicals' Hib conjugate vaccine and the licensed monovalent Hib vaccine ActHIB as well as the licensed combination product Pentacel in infants at 2, 4, 6 and 15-18 months of age. This study is designed with a primary and a booster phase.
The purpose of this study is to see how the body's immune system changes after replacing and adding new anti-HIV drugs to a patient's current anti-HIV therapy. This study will also see whether adding drugs is safe. Patients who take part in A5136 are also eligible to take part in 2 substudies. The purpose of substudy A5140s is to see how many latently infected cells (cells in which the HIV virus survives) are in the lymph node (small, rounded structures that make disease-fighting cells). Substudy A5155s will be performed to see how many latently infected cells are in the blood before and after replacing and adding anti-HIV drugs. ACTG A5136 is a follow-up study to ACTG 315 and ACTG 375, which were designed to examine the effects of highly active antiretroviral therapy (HAART) in certain HIV-infected patients. Many HIV-infected patients have undergone long-term anti-HIV therapy and have had the virus suppressed. However, most of these patients still have problems with their immune systems. The reason for these problems is unknown. This study may help researchers understand what causes immune system problems in people who have low levels of HIV in their blood.
The aim of the study is to further characterize the safety and immunogenicity of Menactra® in the population \<2 years of age when administered alone and when the second dose is administered concomitantly with the 4th dose of Pentacel®, a licensed pediatric vaccine. Primary Objectives: * To evaluate and compare the antibody responses to meningococcal serogroups A, C, Y, and W-135 induced by 2 injections of Menactra® in subjects aged 9 months at the first vaccination visit and 15 to 18 months at the second vaccination visit. * To evaluate and compare the antibody responses to Pertussis (pertussis toxoid \[PT\], filamentous haemagglutinin \[FHA\] and pertactin \[PRN\]) antigens induced by a dose of Pentacel® when administered concomitantly with Menactra® to those elicited by a dose of Pentacel® administered alone. * To evaluate and compare the antibody responses to polyribosylribitol phosphate (PRP), tetanus and diphtheria antigens induced by a dose of Pentacel® when administered concomitantly with Menactra® to those elicited by a dose of Pentacel® alone. Observational Objectives: * To describe the safety profile (immediate unsolicited AEs within 30 minutes of each trial vaccination, solicited reactions within 7 days of each vaccination, unsolicited AEs within 30 days of each vaccination, and serious adverse events \[SAEs\] throughout the course of the trial from Day 0 up to Day 30 after the last trial vaccination\[s\]) in all trial groups * To describe the antibody responses to meningococcal serogroups A, C, Y, and W-135, measured by SBA HC, 30 days after the second Menactra® administration * To describe the antibody responses to Pentacel® (PT, FHA, PRN, FIM, diphtheria, tetanus, polio, PRP) measured by enzyme-linked immunosorbent assay (ELISA), radioimmunoassay (RIA), or functional assays.