View clinical trials related to Malaria.
Filter by:The purpose of this study was to evaluate the effectiveness of the fixed combination of artesunate+mefloquine in the treatment of uncomplicated malaria caused by Plasmodium falciparum in the municipality of Cruzeiro do Sul, Juruá Valley, Brazil, where it was being used as specific first-line drug.
This study aims to test the safety and efficacy of six new malaria vaccines - AdCh63 AMA1, MVA AMA1, AdCh63 MSP1, MVA MSP1, AdCh63 ME-TRAP & MVA ME-TRAP. These vaccines consist of inactivated viruses which have been modified − so they cannot reproduce (replicate) in humans, and also to include genetic material (genes) for malaria proteins which are expressed by the malaria parasite during both liver and blood stage infection. The vaccines are designed to stimulate an immune response to these malaria proteins (immunogenicity describes the nature and magnitude of this immune response) and thus provide protection against malaria infection. The protective efficacy of vaccines will be evaluated by challenging a small number of volunteers who have received the vaccines with malaria infection from the bites of infected mosquitos(sporozoite challenge).
The purpose of this study is to determine whether repeated courses of sulphadoxine-pyrimethamine (SP) in combination with azithromycin given at Antenatal Clinic, leads to lower rates of low birth weight deliveries (<2.5 kg) among Papua New Guinean women, than the current standard treatment of SP and chloroquine.
The routine treatment of children with antimalarials will be monitored. Children with a positive malaria film and/or a positive rapid diagnostic test (RDT) will have a capillary blood sample taken to verify the diagnosis and to monitor the pattern of resistance.
The purpose of this study is to determine the efficacy and effectiveness of sulphadoxine-pyrimethamine intermittent preventive treatment in pregnancy for reducing malaria-associated morbidity in pregnant women in Malawi.
The purpose of this study is to determine safety and efficacy of prenatal iron supplementation in an area of high malaria burden among women who are not anemic or iron deficient.
The purpose of this study is to determine the efficacy of zinc and/or vitamin A supplementation in reducing the risk of placental malaria and its associated adverse pregnancy outcomes.
In Afghanistan, studies over the past 15 years have shown a high degree of Plasmodium falciparum resistance to chloroquine (80%) and more recently an increasing degree of resistance to sulfadoxine-pyrimethamine monotherapy (12%). In 2003 the high failure rate of chloroquine against falciparum malaria led the national malaria treatment programme to switch its recommended first line drug treatment for uncomplicated Plasmodium falciparum malaria to artemisinin-based combination therapy (ACT) in the form of Artesunate/Sulfadoxine-Pyrimethamine (AS+SP). Second line drug treatment is oral quinine (7 days). The aim of this study is to conduct ongoing monitoring of the efficacy of the new combination against P. falciparum in a group of sentinel sites in Afghanistan.
Anemia is still a main public health problem in sub-Saharan Africa. Anemic women have an increased maternal and perinatal mortality and anemic adults have diminished work capacity. In sub-Saharan Africa, the etiology of anemia is multifactoral; the major causes are low dietary bioavailability and chronic parasitic infections such as malaria. These causes are likely to interact because infection and infection-associated inflammation may impair the utilization and absorption of iron. Therefore, the control of parasite infections may be important to improve iron bioavailability from foods. Malaria infections are endemic in northern Benin. To investigate the contribution of asymptomatic malaria (a positive blood smear for malarial parasites but without clinical symptoms of fever, headache or malaise) to anemia, we are planning a human iron absorption study in Benin. We will recruit adults with asymptomatic malaria infection. The iron absorption and utilization of the study subjects will be studied while infected, then they will be treated to clear their infections, and then iron absorption and utilization will be restudied. Iron absorption will be determined by incorporation of labeled iron into erythrocytes, 14 days after the administration of a test meal containing labeled iron (stable isotope technique). Subjects will be men and non-pregnant, non-breastfeeding women with a body weight < 65 kg and between the age of 18 - 30 years. The results of this study will provide important information on the influence of malaria infections on iron absorption and utilization in humans. The study will provide insight into the potential necessity of malaria control to ensure iron bioavailability from foods in developing countries.
This is an open label phase I study, to assess the safety of a novel malaria vaccine, AdCh63 AMA1, simian adenovirus encoding Plasmodium falciparum blood stage antigen, Apical Membrane Antigen -1. All volunteers recruited will be healthy adults. They will be primed with various doses of AdCh63 AMA1 administered intramuscularly. Some of the volunteers will receive a booster vaccination with MVA AMA1 administered via intramuscular route. Safety data will be collected for each of the eight regimens. Secondary aims of this study will be to assess the immune responses generated by each of these regimes.