There are about 465 clinical studies being (or have been) conducted in Tanzania. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Group antenatal care (GANC) is a service delivery model where women with pregnancies of similar gestational age are brought together for antenatal care (ANC), incorporating information sharing and peer support. This model provides selected aspects of clinical care to women in the group at the same time during group visits, as well as creating a support group of women at a similar stage in pregnancy, to improve the quality of care and engagement of women in the ANC process, ultimately leading to better retention in care. Initial studies have suggested that this improves uptake of intermittent preventive treatment in pregnancy (IPTp) among women who participate, but have not evaluated the effect at community level. The investigators propose to assess whether use of the GANC model in Tanzania can improve the quality of ANC as compared to standard individual ANC, by measuring uptake of recommended interventions, primarily IPTp. Recent data from Tanzania and Kenya suggest that malaria parasitemia prevalence among pregnant women correlates with the prevalence among children under five, and could be used to track trends over time.3-5 The very high coverage of ANC (>80% attending at least one ANC contact), suggests that pregnant women could be a good sentinel population that could be readily tracked over time. However, pregnant women represent only about 5% of the overall population, thus, it is important to demonstrate that the trends in malaria prevalence and household level coverage of interventions reported by pregnant women attending ANC is representative of coverage among the general population. If validated, these data could be used to augment or even replace the data on coverage of interventions collected through the use of malaria indicator surveys, which are expensive and infrequently conducted, and generally only powered to the regional level.
Trachomatous inflammation-follicular (TF) is diagnosed by looking for clinical signs of infection of everted eyelids (conjunctivae) of children. The overall objective of this project is to investigate the effectiveness, acceptability and feasibility of an app-based versus slide-based IGA for trachoma graders. Fieldwork will take place during routine Tropical Data trainings. A non-inferiority randomised controlled trial design will be employed, with grader trainees randomised to app- or slide-based training, and then to app- or slide-based IGA testing. The training and IGA testing method will be compared with field IGA test score to determine which method best predicts passing the field IGA test.
Trachomatous inflammation-follicular (TF) is diagnosed by looking for clinical signs of infection of everted eyelids (conjunctivae) of children. The overall objective of this project is to develop a smartphone application and assess its acceptability and feasibility. Fieldwork will take place during routine Tropical Data trainings and population-based prevalence surveys supported by Tropical Data. Healthy adult volunteers in London will have photos of their conjunctivae taken to develop the app initially, with iterative improvements to the app based on image quality achieved. For fieldwork, images of the conjunctivae of children will be have photos of their conjunctivae taken with a digital single lens reflex (DSLR) camera and the newly developed smartphone app. Grading of the photos will be compared with field grading, to compare grading agreement, to assess utility for supervision, quality assurance and training purposes.
The purpose of the study is to Evaluate the Effect of Ticagrelor versus Placebo in Reducing the Rate of Vaso-Occlusive Crises in Paediatric Patients with Sickle Cell Disease
The purpose of the study is to assess the long-term safety profile of Ad26.ZEBOV and MVA-BN-Filo in participants previously exposed to these vaccines in Phase 1, 2, or 3 clinical studies.
Over one year period in an area with universal coverage of LLIN and ACT provision as the first-line treatment of malaria, the investigators intend to evaluate the impact of DL on malaria transmission as measured by the incidence of malaria parasitemia, the prevalence of moderate to severe anemia, and entomological parameters. Information on the relative cost-effectiveness estimates of DL and the community acceptability of DL will also be measured.
The purpose of this study is to see if the transvaginal colposcope produces similar results to colposcopy for the screening of cervical cancer. In this study the investigators are using an investigational device called the transvaginal colposcope. The word investigational means that the device is still being tested in research studies and is not approved by the U.S. Food and Drug Administration (FDA).
The study will be conducted in asymptomatic pregnant women with P. falciparum parasitemia. The subjects will be given 3 day dosing regiment of the fixed-dose combination of Azithromycin and Chloroquine. Parasitological clearance rate with polymerase chain reaction data will be evaluated on Day 28 as primary endpoint.
The primary objective is to establish superiority of AZCQ over SP in protective efficacy for IPTp as measured by the proportion of subjects with sub-optimal pregnancy outcome.
Primary objective: To assess the Day 28 efficacy defined as the percentage of patients with no parasitic recrudescence, of 3 treatment groups - 3 dose levels of ferroquine associated with artesunate - for a 3-day treatment. Secondary objectives: - To assess the efficacy of ferroquine at one dose level alone for a 3-day treatment. - To assess the clinical safety of 4 treatment groups - 3 dose levels of ferroquine associated with artesunate and one dose level of ferroquine alone. - To assess pharmacokinetics parameters of ferroquine and its metabolites along sparse sampling schedules.