View clinical trials related to Malaria.
Filter by:This study outlines a plan for conducting a routine assessment of malaria infection prevalence and intervention coverage using antenatal care (ANC) attendees. This will be a non-randomized assessment of the potential to use pregnant women attending their first ANC visit as a pragmatic sentinel population to monitor prevalence of malaria and the coverage of malaria control interventions. The use of a questionnaire, to include standard malaria rapid diagnostic testing, will be piloted with consenting women attending their first ANC visit at 21 individual health facilities across three of the New Net Project pilot study districts in western Mozambique: seven facilities each from Changara, Chemba, and Guro Districts. The results of the ANC questionnaires will be analyzed to see how well they correlate to similar malaria prevalence and intervention coverage estimates obtained during the contemporary community-based cross-sectional surveys administered during New Net Project pilot evaluation activities. As part of the New Nets Project, Mozambique is deploying next-generation ITNs through mass campaigns in pre-determined provinces. The present study aims to leverage planned New Nets Project cross-sectional surveys and strengthened routine case surveillance data in three of the study districts (Changara, Guro, and Chemba) to assess (1) whether the malaria infection prevalence data collected during ANC surveillance correlates with the cross-sectional survey estimates of community infection prevalence in children 6 to 59 months and (2) if intervention coverage data (particularly ITN ownership and use) collected from ANC surveillance are valid and representative of the population as a whole. These additional data could catalyze a new model of surveillance for malaria, and greatly simplify evaluation of the impact of new interventions, as ANC surveillance could potentially replace or supplement cross-sectional household surveys and provide more granular and timely data. All pregnant women attending first ANC visit at seven health facilities in each study district will be eligible for enrollment. Potential participants will be approached during their visit by a health facility worker. During group counselling sessions at initial intake, women will be informed of this pilot surveillance activity, and written informed consent will be obtained from each woman individually prior to routine ANC testing. All consenting women attending ANC first visit at a participating health facility will be tested for malaria using an RDT and asked to complete a study questionnaire which will include questions about the participant's net use, and care seeking behavior. It is expected to take 15 minutes to complete. Women who test positive for malaria will be given treatment according to national guidelines. There is no additional benefit to individual participants.
The use of insecticide-treated bed nets (ITNs) has contributed to the substantial reduction in malaria cases and deaths. This progress is threatened by increasing resistance to commonly used insecticides in important mosquito vector populations. Newly developed, next-generation ITNs that use two insecticides, or an insecticide synergist and an insecticide, are effective at killing resistant mosquitoes, but large-scale uptake of these nets has been slow due to higher costs and lack of enough evidence to support broad policy recommendations. This observational study will occur alongside a pilot distribution of next-generation ITNs in two regions of Mozambique. Over three years, data on the entomological and epidemiological impact of the different ITN types will be collected. Data collection will occur in six districts: two districts receiving the dual-active ingredient ITN Interceptor® G2 (BASF: alphacypermethrin + chlorfenapyr); one district that will receive the dual-active ingredient ITN Royal Guard® (Disease Control Technologies: alphacypermethrin + pyriproxyfen); one district receiving an ITN containing an insecticide plus an insecticide synergist , Olyset®Plus (Sumitomo Chemical: permethrin + piperonyl butoxide); and two districts receiving the standard pyrethroid-only ITNs DuraNet® (Shobikaa Impex Private Limited: alphacypermethrin). Data will be collected on malaria vector bionomics, disease epidemiology, and ITN use in order to help better demonstrate the public health value of next-generation ITNs and to support donors, policymakers, and National Malaria Control Programs in their ITN decision-making and planning processes.
This Phase 2a trial recruits adult patients with uncomplicated P. vivax or P. falciparum blood-stage malaria mono-infection. The study drug SJ733 will be administered to examine its antimalarial efficacy, safety, and tolerability. This study also evaluates whether or not a fixed dose of the pharmacoenhancer cobicistat when given in combination with SJ733 significantly improves drug efficacy.
It is unknown whether malaria or malaria treatment affects COVID-19 severity, immune responses to SARS-CoV-2 virus, or viral loads and/or duration of shedding and therewith the onwards spread of SARS-COV-2. An observational cohort study will be conducted in 708 newly diagnosed COVID-19 patient of all ages in western Kenya and Burkina-Faso. They will be enrolled in hospitals with COVID-19 testing facilities from a source population screened for SARS-CoV-2 (N~4,720). Approximately 142 of the 708 COVID-19 patients are expected to be co-infected with malaria. They will be enrolled in the nested malaria treatment trial and randomized to receive 3-days of artemether-lumefantrine (the current standard of care) or pyronaridine-artesunate, a highly effective antimalarial with known antiviral properties against SARS-CoV-2 in-vitro, that is newly registered and being rolled out in Africa. Disease progression will be assessed and nasal swabs and blood samples will be taken during home/clinic visits on days 1, 3, 7, 14, 21, 28, and 42. Patients self-isolating will be phoned daily in between scheduled visits for the first 14 days to assess signs and symptoms. Hospitalisation, self-isolation and home-based care will follow national guidelines. The WHO clinical progression scale and FLU-PRO plus scales will be used to compare disease progression between COVID-19 patients with and without malaria, and by malaria. Other endpoints include seroconversion/reversion rates, chemokine/cytokine responses, T and B cell responses, viral load and duration of viral carriage. Infection prevention and control (IPC), including the use of personal protection equipment (PPE), and measures for patient transport will follow national guidelines in each country. Written informed consent/assent will be sought. The study is anticipated to start in January 2021 and last for approximately 18 months.
The proposed trial design has been developed to assess the consistency and reproducibility of two consecutive direct skin feeding assays (DSFA) at 24-hour interval.
The proposed trial design has been developed to answer several questions related to the nature of RTS,S vaccine efficacy in African adults that may be influenced by concurrent and/or past P. falciparum infection leading to a state of immunologic hypo-responsiveness. The proposed study design encompasses five groups. Three groups (Groups 1, 2, and 3) will be administered RTS,S/AS01E on a 0, 1, 7 month schedule with Dose 3 delivered as a 1/5th fractional dose. Two groups (Groups 4 and 5) will be administered a comparator vaccine on a 0, 1, 7 month schedule.
Despite all efforts, malaria remains a public health concern, in particular in the Democratic Republic of the Congo (DRC). The National Malaria Control program recommends artemisinin-based combination treatments (ACTs), in particular artesunate-amodiaquine or artemether-lumefrantrine for the treatment of uncomplicated malaria. Previous studies indicated that ACTs are still effective, with efficacy above the required threshold of 90%. It is required to assess regularly the efficacy of antimalarial drugs. I In case of increasing failure rates, alternative options can be decided ontime. The purpose of this trial is to assess efficacy and safety of artesunate-amodiaquine (ASAQ Winthrop®) and artemether-lumefantrine (Coartem Dispersible®) at day 28 in the treatment of uncomplicated Plasmodium falciparum malaria in six surveillance sites around DRC.
The BLOOMy study is a longitudinal prospective cohort study of healthy children to assess the incidence of clinical malaria over the main transmission season. Participants will undergo baseline clinical and biological assessments then will receive a curative dose of either artesunate or dihydroartemisinin-piperaquine to clear any existing parasitemia. Clearance of parasites will be confirmed 3 weeks later by Polymerase chain reaction (PCR) and only participants with negative PCR will be definitively enrolled for the longitudinal follow up. Both active and passive case detection will be used to ensure that capture of a high proportion of infections in the cohort is achieved. Blood samples for immunological assessments will be obtained at Day 0 of each positive blood smear episode before treatment and at Weeks 4 post treatment. Participants will be followed for a minimum of six months throughout the malaria peak transmission season.
This study will consist of two phases and be aimed at assessing the safety and tolerability of the new genetically attenuated GA2 malaria parasite (Phase 1) and its preliminary protective efficacy against controlled human malaria infection (Phase 2) in healthy Dutch volunteers.
In Uganda, the National Malaria Control Division (NMCD) and implementing partners plan to deliver long-lasting insecticidal nets (LLINs) nationwide in 2020-21, through a mass distribution campaign supported by generous contributions from international donors. LLINs will be distributed free-of-charge to all Ugandan households, aiming to achieve universal coverage. The Against Malaria Foundation has agreed to provide LLINs treated with a pyrethroid insecticide plus pyriproxyfen (PPF) (Royal Guard, Disease Control Technology) and LLINs treated with a pyrethroid insecticide plus piperonyl butoxide (PBO) (PermaNet 3.0, Vestergaard), presenting an opportunity to rigorously evaluate and compare these two LLINs at scale across Uganda. In collaboration with the MOH, the investigators propose to embed a cluster-randomised trial to compare the impact of LLINs with PPF to LLINs with PBO into Uganda's 2020 LLIN distribution campaign. The primary objective of the study is: To evaluate the impact of LLINs treated with a pyrethroid insecticide plus pyriproxyfen (PPF LLINs), as compared to LLINs treated with a pyrethroid plus piperonyl butoxide (PBO LLINs), on malaria incidence in Uganda. The study will test the hypothesis that malaria incidence will be lower in intervention clusters (randomised to receive PPF LLINs) than in control clusters (randomised to receive PBO LLINs).