View clinical trials related to Pneumococcal Infection.
Filter by:This study is primarily designed to evaluate the IgG immune responses to the 13 pneumococcal serotypes induced by 13vPnC compared with the immune responses induced by 7vPnC when measured 1 month after the infant series, and to evaluate the acceptability of the safety profile of 13vPnC as measured by the incidence rates of local reactions, systemic events and adverse events.
The proposed phase IIb randomized, open label, dose ranging, safety and immunogenicity study will evaluate two different doses of 13-valent pneumococcal conjugate vaccine (PCV13) in two groups of participants (55 through 74 years of age). First group vaccine naïve participants will be open-label to receive a single injection of 0.5 mL PCV13. Second group of participant previously vaccinated with 23-valent pneumococcal polysaccharide vaccine (PPSV23) will be randomized 1:1 to receive two injections of 0.5 mL PCV13, one dose in each arm (Group IIA or Group IIB). Blood samples will be obtained at baseline, at one month and six months post-vaccination. The primary objectives are: to determine if two 0.5 mL doses of PCV13 are statistically significantly more immunogenic than a single 0.5 mL dose of PCV13 for at least some of the vaccine serotypes among participants 55 through 74 years of age previously vaccinated with PPSV23, as measured by serotype-specific OPA titers 28 days after study
This study will assess the safety and tolerability of a single dose of 13-valent Pneumococcal Conjugate Vaccine for approximately 1 month after vaccination sequentially in healthy Chinese adults aged 18 through 55 years, followed by children aged 3 through 5 years, and then infants aged approximately 2 months.
Vaccination is the most effective way of preventing infectious diseases. Despite the success of vaccines in general, vaccines induce diminished antibody responses and lower protection in the elderly in particular. This could be explained by a defect in the early responses of an ageing immune system. A better understanding of the basic immunological mechanisms that mediate vaccine efficacy is incomplete. Such information is critical and could greatly decrease both the cost and the time to new vaccine development particularly for the geriatric population. In this trial, the investigators will study the immunologic differences of two FDA approved licensed pneumococcal vaccines between a younger and an older group. Twenty two healthy volunteers between the age of 25-40 and sixty six healthy volunteers between the ages of 60-89 will be enrolled in the study. Each participant in the study will be given one pneumococcal shot. Blood work will be obtained prior to vaccination, one day, three days, seven days, fourteen days, as well as one month and six months after vaccination. Throughout the duration of the study, the participants will be monitored for safety.
The purpose of this study is to establish retrospectively the incidence rates of invasive pneumococcal disease in children aged less than 5 years. The investigators allocate the El Hasa region for the study because it has higher incidence of sickle cell anemia. The study will include data from 2003 to 2007(before introduction of the vaccine) and then for 2008 and 2009 (after introduction of the vaccine).
The purpose of this study is to determine that revaccination of Pneumococcal Vaccine is well tolerated and produces an immune response in older adults.
The purpose of this study is to determine whether Zoster Vaccine Live and Pneumococcal Vaccine, polyvalent are as well tolerated and immunogenic when the vaccines are given together (in different body sites), as when they are given alone, in adults 60 years of age and older.
To describe the safety, tolerability and immunogenicity of pneumovax 23 (V110) in healthy adults in India.
The purpose of this study is to evaluate the safety and immune response of a conjugated pneumococcal vaccine compared to a licensed 23-valent polysaccharide pneumococcal vaccine in elderly adults. Study participants will include 180 adults, 65 years of age or greater. Participants will be randomly assigned to 1 of 3 possible groups. Subjects will maintain a study diary to record side effects and oral temperatures for 7 days following each vaccination. Blood samples will be collected before and 1 month following each dose of vaccine or placebo. Participants will be involved in study related procedures for up to 268 days.