View clinical trials related to Malaria.
Filter by:This study will evaluate the safety and immune response of children to an experimental malaria vaccine called AMA1-C1/Alhydrogel® (Registered Trademark) + CPG 7909. Malaria is an infection of red blood cells caused by a parasite, Plasmodium falciparum, that is spread by certain kinds of mosquitoes. It affects at least 300 million people worldwide each year, with more than 1 million deaths, mostly among children less than 5 years of age in sub-Saharan Africa. Malaria is the leading cause of death and illness among the general population of Mali in West Africa. Increasing drug resistance to P. falciparum and widespread resistance of mosquitoes to pesticides are reducing the ability to control the disease through these strategies. AMA1 C1 is made from a synthetic protein similar to a P. falciparum protein. It is combined with Alhydrogel and CPG 7909, substances added to vaccines to make them work better. Children between 1 and 4 years of age who live in Bancoumana, Mali, and are in general good health may be eligible for this study. Candidates are screened with a medical history, physical examination, and blood and urine tests. Participants are randomly assigned to receive three injections (shots) of either AMA1-C1 or a control rabies inactivated vaccine called Imovax® (Registered Trademark). The shots are given in the thigh muscle on study days 0, 56 and 180. After each shot, participants are observed in the clinic for 30 minutes. They return to the clinic for a physical examination six or seven times between each shot and then four more times over a 9-month period after the last shot. Blood samples are drawn at several of these visits to check for side effects of the vaccine and to measure the response to it. The total duration of the study is 21 months.
An investigation will be made of the combined impact of insecticide-treated nets and intermittent preventive treatment with amodiaquine + sulfadoxine-pyrimethamine on malaria morbidity in children in Burkina Faso and Mali.Three rounds of treatment will be given during the malaria season in one year and the follow-up will be extended into the second year by passive surveillance.
The objective of this study was to evaluate the safety of a candidate malaria vaccine (PfAMA-1) at 3 doses given at monthly intervals of 2 different dosages of AMA-1 (10 μg or 50 μg ) adjuvanted either with alum hydroxide or AS02A or Montanide ISA 720 in healthy adults not previously exposed to the parasite Plasmodium falciparum.
Malaria in pregnancy contributes substantially to maternal anaemia and low birth weight: effective malaria control in pregnancy could avoid about 10,000 maternal and up to 200,000 infant deaths every year. Intermittent preventive treatment with the drug sulfadoxine-pyrimethamine (IPTp-SP), administered at least twice during routine antenatal clinics, is recommended by the World Health Organization for areas of moderate to high malaria transmission, including Sub-Saharan Africa. Studies carried out in Kenya and Malawi before 2004 had showed that two doses of IPTp-SP significantly reduce maternal anaemia, placental malaria parasitaemia and low birth weight. However, in countries where this strategy had been introduced as part of national policy, the coverage of the target population has varied widely, with estimates of 33-93% for uptake of one dose and 24-68% for two doses, and no country had reached the goal of 80% of pregnant women receiving at least 2 doses of IPTp. New approaches designed to improve IPTp coverage were therefore urgently needed. This study was therefore set up in 2002, in order to evaluate the additional effect of a targeted promotional campaign on antenatal clinics utilization and on coverage and uptake of Intermittent preventive treatment with sulfadoxine-pyrimethamine in a rural health district in Burkina Faso; and to investigate the effectiveness of intermittent preventive treatment with the sulfadoxine-pyrimethamine compared with weekly chloroquine, in order to provide additional evidence to the Burkinabé Ministry of Health for an impending policy change.
Patients with non-falciparum infection will be given artemether-lumefantrine for three days and will be followed up for 28 days. Besides efficacy and safety evaluations a substudy on immunology will be performed.
This study is to assess the value of incorporating a malaria RDT based strategy in HMM. The primary activity of the study wil be a two armed cluster randomised trial in two study sites in Uganda, one in Ghana and one in Burkina Faso. One of the Uganda sites is highly endemic and the other meso-endemic for malaria. In one arm the children will be treated presumptively for malaria with ACT (control arm) and the other arm the children will receive ACT only when they have a positive RDT result (implementation arm). The children in the implementation arm will also receive antibiotics if they have a raised respiratory rate. The primary outcome will be the recovery rate in the intervention arm compared to that of the control arm on Day 3. In addition, an acceptability assessment of RDTs in the community will be undertaken both before and after the intervention trial and a cost-effectiveness analysis of the RDT strategy will also be completed. For a sub-sample, microscopy slides will also be taken on Day 0 to demonstrate comparable levels of endemicity in control and intervention groups. These activities will be carried out over a two year period.
More than 1.5 million deaths of African children under 5 years of age have been due to Plasmodium falciparum malaria. When HIV and malaria are present as coinfections, they enhance each other's progression. The primary purpose of this study is to compare the malarial infection levels in HIV-infected infants and children receiving protease inhibitor (PI)- or non-nucleotide reverse transcriptase inhibitor (NNRTI)-based highly active antiretroviral therapy (HAART).
Malaria remains one of the most devastating infectious diseases in the world. Despite the potential for serious adverse outcomes with each episode of malaria, most cases in endemic areas are diagnosed on clinical grounds alone. Even the simple technique of light microscopy, the gold standard for malaria diagnosis, is inaccessible to most individuals in resource-poor malarious areas. New diagnostic methods that are practical for limited health-care settings are urgently needed. Immunochromatographic rapid diagnostic tests (RDTs) for malaria are easy to use, require little infrastructure or expertise, show good accuracy, and are increasingly advocated for routine use in malaria-endemic areas. A major challenge now is to implement RDTs effectively in typical African clinical settings. We plan to evaluate the clinical effectiveness and safety of a training curriculum incorporating RDT use in peripheral government health centers in Uganda. Results from this study will provide evidence for scale-up of RDT implementation in Uganda, as planned by the Uganda Ministry of Health from mid-2008, as well as in other sub-Saharan African countries. The aim of this study is to evaluate the clinical effectiveness and safety of a basic training program incorporating RDTs, as compared with standard-of-care presumptive treatment, for the management of patients who present with suspected malaria at peripheral health centers in Uganda. Our hypothesis is that training in fever case management and RDT use will allow health center staff to reduce unnecessary antimalarial prescriptions without compromising patient outcomes, compared with the current practice of presumptive antimalarial therapy for all febrile patients.
This study will assess the safety and efficacy of artemether-lumefantrine tablets (6-dose regimen) in African infants / children with acute uncomplicated falciparum malaria.
The purpose of this study is to determine the importance of key blood group molecules in the clinical outcome of Plasmodium falciparum malaria infection in children.