There are about 472 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.
1. Determine the "dose-response" relationship between a cash transfer amount and HIV viral suppression at 6 months 2. Identify the most effective cash transfer size to increase the proportion of people living with HIV infection (PLHIV) retained in care and with suppressed viral load (<1000 copies/ml) after 6 months. (This amount will be further evaluated in a cluster randomized trial in Phase 2).
The World Health Organization currently recommends that pregnant women in populations with low calcium intake receive daily calcium supplementation (1500 - 2000 mg) divided into three doses which are preferably taken at mealtimes, in addition to daily iron folic-acid supplements. Despite proven efficacy and the WHO recommendation, calcium supplementation in pregnancy is not standard of care in the vast majority of low-income and middle-income countries. Two important barriers to implementation are the cost of the supplements and complexity of the suggested calcium dosing schedule. A lower dose of calcium (500 mg) administered as a single dose has been shown to be beneficial in several trials, and if found to be as effective as the 1500 mg supplementation regimen, it may help overcome these barriers and increase individual and health system adoption. The Investigators will conduct two parallel, individually randomized, double blind non-inferiority trials in India and Tanzania. Participating pregnant woman will be randomized to either 1500 mg or 500 mg calcium supplementation. The India and Tanzania trials are independently powered for the primary outcomes of i) preeclampsia and ii) preterm birth. The India and Tanzania sites will each enroll 11,000 participants.
The study will evaluate the safety and acceptability of the topical anesthesia-based, no-flip ShangRing technique vs. Mogen clamp for Early Infant Male Circumcision (EIMC) in neonates and infants up to 60 days of life. The study will consist of 2 phases; a pilot phase and a field study. In the pilot phase, male infants of up to 60 days of life will be enrolled in three sub-Saharan countries, specifically Kenya, Tanzania, and Uganda. Infants will be randomized in 1:1 fashion to undergo EIMC using either the Mogen clamp or no-flip ShangRing technique using topical anesthesia. Upon completion of the pilot trial and assuming satisfactory safety results, a larger non-comparative field study of ShangRing EIMC will be initiated, as performed by non-physician providers in routine practice settings in the three sub-Saharan African countries. Total study duration will be 3 years. The pilot phase is anticipated to encompass a total of 1 year. Completion of the field study is expected to take 2 years. Study Endpoints include: 1. To compare the rates of adverse events (AEs) with the ShangRing or Mogen clamp 2. To compare pain control, time to complete wound healing and parent satisfaction with EIMC using the ShangRing or Mogen clamp 3. To compare operative time and provider preference. 4. To assess the rate of spontaneous ring detachment with the ShangRing as a method to decrease the need for follow-up visits after circumcision. 5. To assess the subpreputial microbiome of the infants prior to and after the initiation of circumcision Three correlative studies will be conducted: 1. Penile microbiome study: In the pilot trial, the subpreputial microbiome of the infants undergoing circumcision will be assessed to better understand the spectrum of bacteria that may exist and play a role in infant circumcision. 2. Demand creation study: During both the pilot phase and the field study, it will be assessed whether device-driven EIMC can be safely and effectively integrated into maternal and child health services as a method to promote demand creation. 3. Cost impact study: During both the pilot phase and the field study, a comparative cost analysis of EIMC with ShangRing versus Mogen clamp will be performed, in addition to a cost analysis of ShangRing EIMC as performed in routine clinical settings in the field study. The costing of demand creation will also be assessed.
To evaluate the efficacy, safety and tolerability at 8 weeks (2-months), 52 weeks (12-months), and 104 Weeks (24-months) post the start of the following treatment regimens in participants with: Drug Sensitive TB (DS-TB) patients given BPaMZ for 17 Weeks ( or 4 months) vs. Standard HRZE/HR treatment given for 26 weeks (or 6 months) and Drug Resistant TB (DR-TB) patients given BPaMZ for 26 Weeks (or 6 months)
In natural HIV disease, a small fraction (1-2%) of infected individuals develops exceptionally high titres of HIV-1 neutralizing serum activity. Antibodies isolated from these individuals have been shown to be highly active against a broad range of different HIV strains and are therefore called broadly neutralizing antibodies (bNAbs). These antibodies are in fact able to prevent (S)HIV infection in animal models and therefore of great interest for the development of an HIV vaccine. Information of neutralizing antibodies in patients from Africa is still scarce and would be of great value in the development of adapted HIV vaccine strategies in these regions. This study aims to investigate African HIV-infected individuals, who have developed neutralizing antibodies using highly specialized laboratory methodologies.
HANU is an evaluation of the effects of an integrated, gender-focused nutrition-sensitive intervention on the nutrition and health of young children and women of reproductive age in rural Tanzania.
This cluster randomized controlled study aims to add to the evidence base on mHealth interventions by assessing the main effects of delivering nutrition messages on key maternal, infant, and young child nutrition (MIYCN) behaviors and outcomes through three innovative behavior change strategies. The strategies compared will be: (i) an interpersonal communication strategy using the Tanzanian government's Mkoba wa Siku 1000 maternal, infant and young child nutrition (MIYCN) curriculum (MwS) through clinic- and community-based channels, (ii) the mNutrition SMS text messaging module of the government's Wazazi Nipendeni program, and (iii) the combination of both of these strategies (interpersonal and SMS messaging). They will be compared with the current standard of care in Tanzania. The goal will be to determine which has the greatest impact on key MIYCN and hygiene practices and care-seeking behaviors. It will be paired with a costing analysis so that these effects can be understood in the context of their costs.
This study aims to assess growth and cognitive effects of treatment with azithromycin and nitazoxanide and/or nicotinamide (vitamin B3) supplementation nicotinamide.
This clinical trial will evaluate safety, immunogenicity, and efficacy (prevention of Mtb infection as measured by IGRA conversions) of H56:IC31 in remotely BCG vaccinated adolescents.
Vaccination is a cost-effective strategy for conferring immunity against a host of preventable diseases, however, rates of timely childhood vaccinations remain inadequate in resource-limited settings. We propose to evaluate the feasibility and efficacy of mHealth-assisted conditional cash transfers as a means of overcoming individual barriers to timely vaccinations. The study will form the basis for a pragmatic randomized controlled trial of the efficacy and cost-effectiveness of mHealth reminders and conditional cash transfers for improving rates of timely vaccinations among young children.