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NCT ID: NCT05784584 Active, not recruiting - HIV Infections Clinical Trials

Early Anti-Retroviral Treatment in HIV- Infected Children

Start date: May 1, 2018
Phase:
Study type: Observational

EARTH study is conducted as part of the EPIICAL project. It is a prospective cohort study which aims to monitor clinical, virological and immunological features of HIV-positive, early treated children (≤90 days after diagnosis), in order to identify participants with excellent viral and immunological control, and also other without excellent control, in order to stratify potential participants in proof-of-concept trials directed to HIV cure.

NCT ID: NCT05343312 Active, not recruiting - Malaria Clinical Trials

In Vivo Efficacy of Artemether-Lumefantrine, Amodiaquine-Artesunate, Dihydroartemisinin-Piperaquine, and Pironaridine-Artesunate in Mozambique

MEFI_IV
Start date: March 16, 2022
Phase: Phase 4
Study type: Interventional

This is a classical in vivo clinical trial, following World Health organization's recommendations, ran as a multisite study within Mozambique trying to assess the efficacy and safety in 5 sites of the four oral ACTS artemether-lumefantrine (AL), Amodiaquine-Artesunate (AQ-AS), Dihydroartemisinin-Piperaquine (DHP) and Pironaridine-Artesunate for the treatment of uncomplicated malaria in children aged<5 years.

NCT ID: NCT05303168 Active, not recruiting - COVID-19 Clinical Trials

Prevalence and Impact of COVID-19 on Maternal and Infant Health in African Populations

MA-CoV
Start date: July 1, 2021
Phase:
Study type: Observational [Patient Registry]

There is growing evidence that COVID-19 threatens maternal and perinatal health. Pregnant women are at higher risk of severe complications (severe pneumonia, hospitalizations, intensive care unit admission, invasive mechanical ventilation, extracorporeal membrane oxygenation) and death compared to age-matched non-pregnant women. On the other hand, the number of confirmed COVID-19 cases reported in sub-Saharan Africa (SSA) continues to increase, where the highest maternal mortality rates in the world are registered. The World Health Organization (WHO) estimates that this region alone accounted for roughly two-thirds (196 000) of all maternal deaths in 2017, which among other reasons is explained by the inequalities in access to quality antenatal care (ANC) services and the low numbers of skilled health workers in the region. The spread of SARS-CoV-2 in SSA is threatening the already fragile health services, affecting mainly the most vulnerable populations such as pregnant women. This project aims to describe the burden and effects of SARS-CoV-2 infection during pregnancy in women living in malaria endemic areas and high prevalence of HIV infection. Pregnant women attending ANC clinics in selected sites from Libreville and Lambaréné (Gabon) and Manhiça (Mozambique) will be enrolled in a cohort study to determine the frequency of SARS-CoV-2 infection and COVID-19 during pregnancy and its effects on maternal and neonatal health. Participants will be tested for SARS-CoV-2 infection whenever reporting respiratory symptoms suggestive of COVID-19 during routine ANC follow-up and six weeks after the end of pregnancy. The presence of antibodies (IgG/IgM) against SARS CoV-2 in blood samples will be determined. The clinical presentation of COVID-19 in pregnancy will be also characterised, and the incidence of infection during pregnancy and the risk factors of maternal and neonatal morbidity and mortality associated with SARS-CoV-2 infection and the frequency of mother- to- child transmission of SARS-CoV-2 will be assessed. The findings of this project will contribute to the understanding of the impact of SARS-CoV-2 and COVID-19 among pregnant women living in SSA countries where malaria and HIV infections are highly prevalent.

NCT ID: NCT05190146 Active, not recruiting - Clinical trials for Tuberculosis, Pulmonary

Epidemiologic Study to Assess the IGRA Positivity in Populations With a High TB Burden

Start date: December 20, 2021
Phase:
Study type: Observational

The purpose of this study is to conduct a multi-country, multi-site, epidemiologic study designed to assess the proportion of interferon gamma release assay (IGRA) positivity, at site level, and to build capacity to conduct a future TB vaccine efficacy study.

NCT ID: NCT05186363 Active, not recruiting - Malaria Clinical Trials

Effectiveness of Seasonal Malaria Chemoprevention in Nampula Province, Mozambique: Type Two Hybrid Implementation Study

Start date: January 8, 2022
Phase: Phase 4
Study type: Interventional

We describe a Type II hybrid effectiveness-implementation study design which evaluates the effects of a clinical intervention on relevant outcomes whilst collecting information on implementation. It is designed to determine feasibility and effectiveness of an innovative intervention, as well as the protective efficacy of the drugs used. The study consists of three components: 1) Conducting a cluster randomized controlled trial (cRCT) through household surveys establishing confirmed malaria cases in children; 2) Conducting a prospective cohort study to determine the chemoprevention efficacy of sulfadoxine-pyrimethamine and amodiaquine (SPAQ) and whether drug concentrations or parasite resistance influence the duration of protection; and 3) Conducting a resistance markers study in children 3-59 months to measure changes in resistance marker prevalence over time.

NCT ID: NCT05073718 Active, not recruiting - Covid19 Clinical Trials

SARS-CoV-2 and Acetylsalicylic Acid (SARA)

SARA
Start date: September 14, 2022
Phase: Phase 3
Study type: Interventional

SARS-CoV-2 infection in pregnancy is associated with an increased risk of adverse maternal and perinatal outcomes. One explanation is that the infection might increase the existing pregnancy-associated prothrombotic status, leading to a higher risk of placental and vascular complications. Administration of low-dose acetylsalicylic acid (LDASA) has shown to improve maternal and perinatal outcomes in women at high-risk of endothelial and placental complications. However, there are no data on the effect of LDASA in preventing complications in SARS-CoV-2- infected pregnant women. To reduce SARS-CoV-2- related complications in a highly vulnerable group to the infection, we will carry out this randomized, double-blind, placebo-controlled multicentre trial in 400 SARS-CoV-2-infected pregnant women. The study main objective is to evaluate the efficacy and safety of LDASA administered up to 36 weeks of gestation in SARS-CoV-2-infected pregnant women in reducing the incidence of adverse maternal and perinatal outcomes. Pregnant women tested positive up to 32 weeks of gestation with a SARS-CoV-2 rapid antigen or PCR test and agreeing to participate, will be randomised 1:1 to receive daily LDASA (125 mg) or placebo up to 36 weeks of gestation and be followed-up until delivery.

NCT ID: NCT04998240 Active, not recruiting - Covid19 Clinical Trials

Mix and Match Heterologous Prime-Boost Study Using Approved COVID-19 Vaccines

Start date: December 29, 2021
Phase: Phase 2
Study type: Interventional

This is an observer-blind, randomized study which aims to assess the immune response and the safety of two different approved vaccines for first and second dose in healthy adults.

NCT ID: NCT04966702 Active, not recruiting - Malaria Clinical Trials

Broad One Health Endectocide-based Malaria Intervention in Africa (BOHEMIA)

BOHEMIA
Start date: March 17, 2022
Phase: Phase 3
Study type: Interventional

The BOHEMIA program consists of a combination of studies organized around a central community prevention mass drug administration protocol and four sub-studies (i.e.; social science, entomology, health economics, and environmental), each written as an individual protocol. The protocol is central but used in two separate, individually powered trials in Mozambique and Kenya. The trials have been powered on the efficacy outcome and designed to meet the requirements of WHO´s preferred product characteristics (PPC) for endectocides.

NCT ID: NCT04825327 Active, not recruiting - Tuberculosis Clinical Trials

Predicting the Future: Incipient Tuberculosis

PreFIT
Start date: April 21, 2021
Phase:
Study type: Observational [Patient Registry]

The investigators will study, prospectively, if contacts (household or close contacts) of tuberculosis (TB) patients with high C-reactive protein (CRP), low hemoglobin (Hb) levels, and a positive Xpert Host Response (HR) cartridge result develop active TB within 12 months. They will also investigate if there is a correlation between progressing to active TB within 12 months and having high levels of the iron homeostasis markers (Hepcidin, Ferritin and Transferrin). Identified index cases who agree to participate will refer their household or close contacts to also join the study. These contacts will be tested for TB and only contacts who are negative will be enrolled and followed-up at 6 months and 12 months. Blood samples will be collected at baseline and 6 months for testing. During the study period, TB testing will be done on contacts who meet symptoms criteria. At 12 months, all contacts will undergo a chest x-ray to assist in the diagnosis of TB. PreFIT will target people aged 12 to 60 years of age and both HIV negative and positive. 1515 trial participants will be recruited at Stellenbosch University in South Africa, 1515 at Fundaçao Manhiça in Mozambique and 1010 at Makerere University in Uganda, respectively.

NCT ID: NCT04781257 Active, not recruiting - Tuberculosis Clinical Trials

Early Risk Assessment in Household Contacts (≥10 Years) of TB Patients by New Diagnostic Tests in 3 African Countries

ERASE-TB
Start date: March 1, 2021
Phase:
Study type: Observational

The ERASE - TB study will be conducted in order to fill a critical unmet need for tuberculosis control. Persons who are in contact with an infectious TB case may become infected themselves. Among those who are infected, most will stay healthy but some will develop TB themselves. These people would benefit from preventive treatment, which would also stop TB from being spread to other persons. The problem currently is that it is impossible to determine with certainty who would require preventive treatment, and who will remain healthy. Out of 100 persons exposed to an infectious TB patient, only 2 will go on to have TB according to a study in Vietnam, but there are no good tests available to identify those with a risk for TB disease. Treating 100 persons to prevent 2 cases of TB is not effective, so preventive treatment is not used in adults and adolescents in Tanzania, Mozambique and Zimbabwe, where this study will be conducted, but also in many other settings. The ERASE - TB project will evaluate a number of newly developed diagnostic tests, to see which of those will be able to predict TB in persons at risk, and therefore steer preventive treatment well. For this, the investigators will invite 2,100 household contacts (HHC) of infectious TB patients, who are at least 10 years old, into the study. Everyone will be examined initially, and again in regular intervals, for 1.5 to 2 years; and whenever the participants will present with symptoms that could indicate that they develop TB. At every visit, the investigators will perform an X-ray and take some blood and urine samples to perform new candidate tests. At the first/baseline visit, all household contacts without TB will undergo a spirometry to evaluate their pulmonary function. If someone is unwell, the investigators will also examine sputum for the presence of TB bacilli. In the end, the investigators will then be able to say who of the persons in the study developed TB, and who remained healthy. From all samples taken at different timepoints, the investigators will then determine which test found TB early, and clearly distinguished between persons developing TB, and persons who would remain healthy .