View clinical trials related to Malaria Vaccines.
Filter by:The RTS, S/AS01E vaccine has been developed for routine immunization of children living in malaria- endemic countries of sub-Saharan Africa. This study is intended as a post-implementation safety study (after vaccine implementation), with the primary objective to evaluate the safety of vaccine after its administration. In addition to the primary objective, the study will also evaluate the impact and effectiveness of the vaccine.
The purpose of this study is to assess the immunogenicity, safety, and reactogenicity of the SB257049 candidate malaria vaccine when co-administered with Vitamin A, measles, rubella and yellow fever vaccines to children aged 6 months at the first vaccination.
The purpose of this pre-licensure cohort study is to estimate the incidence of adverse events of special interest (AESI), other adverse events (AE) leading to hospitalisation or death, meningitis and malaria in sub-Saharan African children under 5 years of age. The outcomes of this study will provide the baseline data for the post-licensure EPI-MALARIA-003 (115056) study that will evaluate the safety, effectiveness and impact of the RTS,S/AS01E vaccine. An interim analysis was performed on a sub-group of study participants enrolled in active surveillance from sites where the vaccine is currently implemented, having 6 months of follow-up following the administration of dose 3 of DTP/HepB/Hib vaccine (6-12 weeks group), or 6 months after Visit 3 (mimicking the RTS,S/AS01E primary vaccination schedule) for the 5-17 months group; corresponding to Visit 5. The interim analysis concerned primary safety endpoints and the main secondary endpoints.
This epidemiology study is planned to run in parallel with the EPI-MAL-002 and EPI-MAL-003 studies, enrolling from the same health and demographic surveillance system (HDSS) (or equivalent system) populations. The co-primary objectives are to produce longitudinal estimates of parasite prevalence in humans, and record malaria control measures usage in areas where EPI-MAL-002 and EPI-MAL-003 studies will take place.
This study has been designed to support the indication of the candidate vaccine (also referred to as GSK 257049 or RTS,S in this record) against hepatitis B virus infection, when administered as a primary vaccination integrated into an Expanded Program on Immunization (EPI) regimen to infants living in sub-Saharan Africa.
The aim of this epidemiology study is to characterize in a standardized way malaria transmission intensity at the clinical trial centers participating in study 110021 (NCT00866619).
Background: - Malaria, a disease transmitted by mosquitoes, affects millions of people with the highest frequency, morbidity, and mortality in infants and young children. Plasmodium falciparum and Plasmodium vivax, the most common and severe forms of malaria, have host- and stage-specific proteins that can induce immunity to the disease. - Vaccines against stages that infect mosquitoes will prevent the spread of malaria. Researchers have developed a vaccine composed of a single protein, Pfs25, to induce antibodies in the human host that will be ingested by the mosquito and prevent the malaria parasite from reproducing and stop transmission of the disease. Because Pfs25 is present only in the mosquito, humans do not develop antibodies to this antigen even in endemic areas. Repeated injections of this vaccine may be necessary. Objectives: - To establish the safety and optimal dosage of a malaria vaccine developed with the Pfs25 protein. Eligibility: - Healthy adults between 18 and 49 years of age who have never had malaria or received a malaria vaccine. Design: - Two doses of Pfs25 conjugate (10 micrograms and 25 micrograms) will be evaluated in this study. Participants will receive only one of these doses in order to provide the best scientific data for evaluation. - To determine eligibility, participants will provide a medical history and have a physical examination, and will provide blood and urine samples to test for HIV/AIDS, hepatitis, and other conditions that would prevent them from participating. - Eligible participants will receive one injection of the vaccine. The injection will be followed 30 minutes later with a temperature reading and an inspection of the vaccine site. - Upon leaving the clinic, participants will receive diary forms, a digital thermometer, a ruler, and instructions about how to take their temperature and to measure redness and swelling (if any) at the injection site. About 6 hours later, and daily for 3 days, participants will take their temperature at home and examine the injection site. Participants will be examined at the clinic at 48 to 72 hours and on day 7 after an injection. A blood sample will be taken 1 week after immunization. - Participants will receive a second and third injection of the same vaccine at 6-week intervals, and will follow the same recording procedure given above. Further blood samples will be taken at regular intervals for up to 12 months after the vaccination, as directed by the study researchers.
GSK Biologicals in partnership with the Malaria Vaccine Initiative at PATH is developing a candidate malaria vaccine GSK 257049 for the routine immunization of infants and children living in malaria endemic areas. The vaccine would offer protection against malaria disease due to the parasite Plasmodium falciparum. The vaccine would also provide protection against infection with hepatitis B virus (HBV). In order to integrate the malaria vaccine into the EPI regimen in malaria-endemic regions, a new variant RTS,S/AS02D (0.5 mL dose) has been developed. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.