View clinical trials related to Whooping Cough.
Filter by:Currently, there are two types of vaccines available against pertussis (whooping cough), an infectious disease of the respiratory tract that can be extremely serious in very young children. Both have advantages and disadvantages: The acellular form (aP, mainly used in resource-rich countries) does not appear to offer as long lasting protection, but the whole cell vaccine (wP, mainly used in LMIC) appears to be generally more reactogenic. There is consensus that a "better pertussis vaccine" ought to be designed. The GaPs trial is part of a series of clinical trials performed by the PERtussIS COrrelates of Protection Europe (PERISCOPE) Consortium, an EU-funded group of investigators which aims to generate knowledge on immune responses to pertussis. A better understanding of human biomarkers of protective immune responses to B. pertussis and its waning immunity is needed to accelerate the design and testing of new pertussis vaccines with a longer duration of protection. This proposal describes the design and objectives of the clinical trial to be conducted in the Gambia, which is the only site in Africa involved in the consortium and involves the recruitment of 600 mother/infant pairs. Pregnant women will be randomised to receive either the usually recommended tetanus vaccination or a combination vaccine against whooping cough, diptheria, tetanus and polio. Their infants will receive either aP or wP as part of their EPI vaccines, and resulting immune responses will be characterized in detail up to the age of 9 months. The investigators will use immunological assays to investigate the functional humoral and cellular responses to pertussis in infants born to mothers who are randomized to receiving pertussis vaccine in pregnancy or not, and their infants who will receive either aP or wP vaccine. Our research questions are: Does vaccination against pertussis in pregnancy have impact on subsequent immune responses to pertussis vaccine and other EPI vaccines in the infants Does vaccination of infants with wP vaccine induce different levels and functionality of antibody and/or T cell responses than vaccination with aP vaccine What is the difference in innate and acquired immunity- as measured with novel systems vaccinology tools- between being vaccinated with wP versus aP?
This study will aim to recruit at least 70 children who participated in the iMAP2 study whose mothers received a pertussis vaccine in pregnancy as part of the iMAP2 trial and at least 15 children born to mothers who did not receive a pertussis vaccine in pregnancy. Blood samples will be obtained prior to and one month after the routine preschool booster vaccination and vaccine responses compared between children whose mothers received one of two pertussis vaccines or no pertussis vaccine in pregnancy. Children will be vaccinated with the routine booster vaccines by the study team on the same visit as the pre-vaccination bloods are taken.
This is a randomized, partially blind, placebo controlled, clinical trial evaluating a single intranasal dose of BPZE1 in healthy adults. The study will evaluate a lyophilized formulation of the product, with the goal of testing for the optimal dose for subsequent clinical trials. Fifty healthy adults, 18-49 years of age will be randomized to one of the four following treatment groups in a 3:3:3:1 ratio: 10^7 colony forming units (CFU) of BPZE1 administered by VaxINator device, 10^9 CFU of BPZE1 administered by VaxINator device, placebo administered by VaxINator device, 10^9 CFU of BPZE1 administered by needleless tuberculin syringe. Study duration will be approximately 12 months with a subject participation duration of approximately 6 months. The primary objective of this study is to assess the safety and tolerability of a single intranasal dose of either 10^7 or 10^9 CFU of lyophilized BPZE1 vaccine.
The impact of chronic HIV infection and pregnancy on different aspects of the humoral response to pertussis immunization with the TDaP vaccine will be studied. The parameters will be measured in 3 groups (HIV-infected pregnant, HIV-uninfected pregnant and HIV-uninfected non pregnant) at different time points before and after immunization (7-10 days, 30 days and at delivery). The transfer ratio and the quality of maternal antibodies will be studied in cord blood.
This study evaluated the seroprevalence of Bordetella pertussis antibodies and anti-pertussis antibody response after a single dose of reduced-antigen, combined diphtheria, tetanus, and acellular pertussis vaccine (Tdap) in pregnant Thai women. All seronegative participants received Tdap, while seropositive participants were equally randomized into 2 groups. Half of seropositive participants received Tdap and the other half received tetanus-diphtheria (Td) as standard protocol.
The purpose of this study was to assess the safety of Boostrix administered on or after the first day of the 27th week of pregnancy by conducting a post-marketing study that provided safety information to the public and healthcare providers. This was one of the largest cohorts of pregnant women vaccinated with Boostrix in the U.S. Through partnership between Kaiser Permanente Southern California (KPSC) and the sponsor, GlaxoSmithKline (GSK), information about the safety of maternal vaccination with Boostrix and maternal and infant adverse events (AEs) in a community setting was gained.
Due to waning of infectious as well as vaccine immunity and lack of vaccination boosters, a large number of adolescents and adults are no longer immunized against Bordetella pertussis, the agent of whooping cough and consequently may contract whooping cough. Furthermore, these populations represent a reservoir of the infectious agent from which the dissemination to non-immune infants is possible, causing severe illness, or even death, in this age group. Few studies have been carried out on whooping cough in developing countries (incidence, contaminator's age, etc.) and, specifically, none have assessed the duration of protection induced by the whole cell pertussis (wP) vaccine mainly presently used in these countries. However, data on the duration of vaccine induced protection are essential to determine i) the usefulness of vaccine boosters and ii) the target age group for these boosters. The aims of the present study are: - To evaluate the proportion of confirmed pertussis cases in infants presenting whooping cough syndrome (WP1a) - To evaluate the proportion of confirmed pertussis cases or healthy carriers among contact cases - To determine origin of the infant's contamination (WP1b) - To determine the duration of protection induced by the wP vaccines used in contact cases and the child population aged 3 to 15 yo (WP1b and WP2) - To bring new scientific evidences documenting the potential need for initiating boosters (WP1b and WP2) - To allow a comparison of the results with those obtained using the same methodology for the acellular pertussis vaccine and/or in other contexts. Potential implications for the use of pertussis vaccines in low and moderate income countries. - To increase local capabilities by the transfer of materials and expertise that will make the diagnosis of pertussis possible in the centres of reference and strengthen a pertussis monitoring network in the implicated countries. - To improve children's health through a better match of the vaccination schedule according to the reality of the situation.
Diphtheria, tetanus and pertussis are common causes of diseases worldwide, with significant morbidity and mortality. The purpose of this study is to assess the immunogenicity, safety and reactogenicity of a single dose of GlaxoSmithKline (GSK) Biologicals' Boostrix vaccine, administered as a booster dose in healthy Russian subjects. An equal number of subjects are expected to be recruited in the following age categories: 4-9 years (children), 10-17 years (adolescents), 18-64 years (adults) and ≥65 years (elderly population). By receiving the Boostrix vaccine, the subjects could be protected against diphtheria, tetanus and pertussis diseases.
Randomized controlled trial of 2 strategies to provide adults with the Tdap vaccine to patients presenting to the emergency department. Rates of vaccination as well as effects on department efficiency will be measured.
This study focus on the genetic changes of B. pertussis clinical isolates. For this panels of B. pertussis isolates has been collected during four periods in different European countries.