View clinical trials related to Schistosomiasis.
Filter by:The goal of this intervention study is to investigate the level of knowledge, attitudes, and behaviors of students on schistosomiasis in Pemba Island. It aims to test the effectiveness of establishing a widely applicable Community Health Volunteers model in the Zanzibar region and explore the feasibility of promoting this model in other areas of Africa. This study also aims to provide valuable insights and references for global schistosomiasis prevention and control efforts.
This is an experimental, multicenter, non-profit study promoted by the Department of Infectious and Tropical Diseases of the IRCCS (Istituto di Ricerca e Cura a carattere scientifico) Sacro Cuore Don Calabria of Negrar which aims to evaluate the presence of endosymbiont Wolbachia in circulating microfilariae obtained from biological samples of individuals infected with M .perstans and the presence of infection with hybrid Schistosoma species in the population of Schistosoma eggs isolated from biological samples of patients with active schistosomiasis.
Malaria remains a major health problem, especially among children living in sub-Saharan Africa where more than 90% of the disease and deaths occur. Adding to this high burden among the children is the co-existence of parasitic worms in their intestines and urinary tract. The combined infection of malaria and parasitic worms in these children has additive adverse effects of anaemia, poor physical and cognitive development, and death. Existing control programmes for the parasitic worms are operating sub-optimally despite the 2012 London Declaration on Neglected Tropical Diseases (NTDs) of achieving 75% treatment coverage by 2020. On the other hand, a malaria prevention programme, called Seasonal Malaria Chemoprevention (SMC), introduced in the same year as the London Declaration on NTDs has achieved more than 75% treatment coverage and prevented 75-85% of cases of uncomplicated and severe malaria in children. The remarkable success of SMC has led to the recent WHO recommendation for its extension to other at-risk age groups and in highly seasonal malaria transmission settings outside the Sahel region. This encouraging development supports the need to explore the possibility of integrating helminth control programmes with other successful delivery platforms such as SMC. However, limited empirical evidence exists on an integrated approach that integrated the control of malaria and parasitic worms in a safe, acceptable, easy-to-deliver and effective manner. To address this knowledge gap, the investigators conducted a randomised controlled trial in the first stage of this project to establish the feasibility and safety of integrating helminth control with SMC among Senegalese children. This second stage will assess the effectiveness and cost-effectiveness of using SMC platform to deliver deworming drugs to preschool and school-aged children living in communities where the burden of malaria and parasitic worms is high in central Ghana. One thousand, two hundred children aged 1-14 years will be randomly assigned equally to two study communities where antimalarial (SMC) drugs and deworming drugs will be administered in combination to the children living in one study community, and antimalarial (SMC) drugs alone will be delivered to the children living in the second study community. The effectiveness of the combined delivery will be determined by checking whether the combined antimalarial and deworming drugs prevent anaemia in the children who receive the combined drugs compared to the children who receive antimalarial drugs only. We will also determine the cost and cost-effectiveness of this approach by estimating the incremental cost savings due to cases of moderate and severe anaemia averted by giving antimalarial and deworming drugs together to the children. The findings of this study would provide evidence to boost public health recommendations for an integrated control of malaria and parasitic worms among children living in the poorest countries of the world. The findings may also reinforce the empirical evidence that the future direction of healthcare systems in developing countries should be comprehensive health management rather than vertical management of a single disease.
The goal of this observational study is to test a new AI diagnostic tool for detection, specification and quantification of parasitic infections (Ascaris, Trichuris, hookworm and S. Mansoni) in School aged children in Ethiopia and Uganda. The main questions it aims to answer are: - Diagnostic Performance of the AI tool and compare to traditional manual microscopy - Repeatability and reproducibility of the AI tool and compare to traditional manual microscopy - Time-to-result for the AI tool - Cost efficiency for the AI tool and traditional manual microscopy to inform programmatic decisions. - Usability of the AI tool Participants will be asked to provide a stool sample for examination by the AI tool and traditional manual microscopy. Participants with a positive test result will receive the proper treatment (Deworming drug).
The goal of this clinical trial is to learn about the Sm-p80 + GLA-SE (Schistoshield®) vaccine in healthy participants who have not had schistosomiasis before. The main questions it aims to answer are: - if the vaccine is safe - if after vaccinated people start producing antibodies - if the vaccine works against schistosomiasis. Participants will receive three vaccines (or placebo) and are then exposed to 20 male Schistosoma cercariae. Afterwards they are treated with praziquantel to cure the infection. Researchers will compare the group vaccinated with Schistoshield® and placebo (fake vaccination) to see if the vaccine has worked.
Migrants' overall health status may be improved by increasing the detection of certain infectious diseases and other conditions for which effective care is available. This can be achieved through a systematic screening of these conditions using innovative and digital solutions implemented in routine health care. This study aims to evaluate the implementation of a screening programme for migrants at primary care level in two different settings of Spain (Catalonia and Andalusia) using an innovative digital and user-friendly software tool (ISMiHealth). In Catalonia, the ISMiHealth tool has already been integrated into the Electronic Patient Record (EPR) system (eCAP) as part of a pilot study in 2018; currently, the research team aims to validate the tool in a higher number of primary care centres in this area. Therefore, a pragmatic cluster randomised controlled trial will be conducted with two parallel groups, in which selected centres using the novel software ISMiHealth will be compared to others that follow the current routine practice. On the other hand, in Andalusia a pilot cluster randomised controlled trial will be carried out, where the ISMiHealth tool will be implemented in the EPR system (DIRAYA) to evaluate the preliminary effectiveness of the tool in other settings. The ISMiHealth software is a clinical decision support system that provides recommendations for primary healthcare professionals on screening for targeted conditions. It currently includes: 7 communicable diseases (Human immunodeficiency virus, Hepatitis B and C virus, Tuberculosis, Chagas diseases, strongyloidiasis and schistosomiasis) and one key health condition (female genital mutilation). Through routinely collected variables (country of birth, age, and sex), the software performs an individualised risk assessment and provides real-time prompts to healthcare professionals on screening for the selected health conditions. In any case, health professionals will be responsible for requesting screening tests and/or referrals to specialists.
A cross-sectional survey will be conducted among 200 volunteering women aged 18- 45 years and having had prior sexual activity living in the target villages of Itilima and Maswa districts, North-western Tanzania. A single midday urine sample and two cervical-vaginal swabs (both self-collected and speculum-aided collected by a female healthcare worker) will be obtained from participating women and processed using urine filtration and polymerase chain reaction (PCR) for cervico-vaginal samples. A pre-tested structure questionnaire will be used to collect sociodemographic, clinical, and sampling acceptability information from participants.
The goal of this phase 1b, multicenter, randomized, placebo-controlled, observer-blinded, dose-escalation study is to assess the safety, tolerability, and immunogenicity of a three-dose regimen, spaced four weeks apart, given intramuscularly in healthy adults (20-59 years old). Three different dose formulations of the study product with varying antigen contents will be investigated. A total of 120 eligible participants will be recruited in 3 sequential cohorts (A, B, and C) in Burkina Faso (N=60) and in Madagascar (N=60). Cohort A will receive the low-dose antigen formulation (10 µg) or placebo, Cohort B will receive the medium-dose antigen formulation (30 µg) or placebo, and Cohort C will receive the high-dose antigen formulation (100 µg) or placebo; all antigens with 5 μg adjuvant (GLA-SE). In each cohort, volunteers will be randomized in a blinded manner into one of two arms, candidate vaccine or placebo, by a 3:1 ratio. A subset of five out of 20 subjects in each cohort will be sampled by convenience to enable us to further characterize the immune response using the peripheral blood mononuclear cells (PBMC). The Primary Objective of the study is to evaluate the safety and tolerability of 3 different dose formulations (low dose, medium dose, and high dose) of SchistoShield® vaccine given intramuscularly on D0, D28 and D56 to healthy participants 2018 to 59 years of age in Burkina Faso and Madagascar.
Previous clinical trials have already demonstrated the safety of the candidate vaccine in adults as well as in children, in good health or infected with schistosomiasis. Regarding the induced immune response, more than 80% of vaccinated subjects were seroconverted after three vaccine injections. The induced immune response was substantial but transient. In order to obtain a more lasting immune response, the investigator will experiment with a new vaccination schedule (2 injections 1-month interval and the 3rd injection 5 months after the first dose), versus the vaccine schedule initially used (3 injections at 1-month interval). This trial will be the last phase 2 before testing the efficacy of the rSm14 vaccine candidate.
Malaria remains a major health problem, especially in sub-Saharan Africa where more than 90% of the disease and deaths occur in children. Adding to this high burden among the children is the co-existence of intestinal and genito-urinary worms. Prominent among these are soil-transmitted helminths and schistosomiasis. Existing control programmes for the worms are operating below the expected level, despite the commitments and support that followed the 2012 London Declaration of achieving 75% treatment coverage by 2020. On the other hand, a malaria prevention programme, called Seasonal Malaria Chemoprevention (SMC), introduced in the same year 2012 has achieved more than 75% treatment coverage and prevented 75-85% cases of uncomplicated and severe malaria in children. This encouraging development supports the need to explore the strategies involving the integration of worm control with successful platforms such as SMC. This would align worm and malaria control with the WHO road map for Neglected Tropical Diseases (NTD) of ending the neglect to attain Sustainable Development Goals by eradicating diseases of poverty and promoting health and well-being for those at risk. Given this context, it is important to develop a treatment approach that combines malaria and helminth control in an integrated framework that will be safe, effective and easy to deliver. This study will, therefore, investigate the feasibility and effectiveness of co-administration of anthelminthic and SMC drugs in a high-risk paediatric population living in a malaria-helminth co-endemic setting in Senegal, West Africa. This study is designed to test the hypothesis that co-administration of SMC and anthelminthic drugs will be safe and tolerated among children aged 1-14 years and that the incidence of side effects will not be significant. The objectives of this study are to assess the safety, tolerability, and effects of co-administration of SMC and anthelminthic drugs among the children