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NCT ID: NCT06047821 Recruiting - Diarrhea Clinical Trials

Enterics for Global Health (EFGH)

Start date: August 25, 2022
Study type: Observational

Diarrhea remains a leading cause of death among young children, with the majority of diarrhea deaths occurring in low- and middle-income countries. Childhood diarrhea caused by a type of bacteria called "Shigella" is responsible for an estimated 60,000 deaths each year and may cause particularly severe illness among children. Currently, there are several promising vaccines to prevent Shigella diarrhea in development, but key information is still needed to inform future vaccine studies. The purpose of this study, titled Enterics for Global Health (or the "EFGH"), is to determine the number and rate of new cases of Shigella diarrhea among children 6 to 35 months of age presenting to health facilities with diarrhea or dysentery. Over a two-year period, the EFGH study will enroll 1,400 children from each of the seven countries: Peru, Pakistan, Bangladesh, Mali, Malawi, Kenya, and The Gambia (9,800 children total).

NCT ID: NCT06029543 Not yet recruiting - COPD Clinical Trials

Permian Health Women's Lung Health Study

Start date: December 2023
Study type: Observational [Patient Registry]

The goal of this cross-sectional observational study is to estimate the prevalence of lung function impairment as measured by spirometry in a population of Gambian women aged 15 and older. The main question[s] it aims to answer are: - What is the prevalence of lung function impairment in Gambian women - What is the prevalence of eosinophilic inflammation in Gambian women Consenting participants will undergo - Spirometry - Fractional exhaled nitric oxide (FENO) testing - α1-antitrypsin testing in patients with lung function impairment as assessed by spirometry

NCT ID: NCT05952336 Active, not recruiting - Clinical trials for SARS CoV 2 Infection

Transmission of Respiratory Viruses in Households in The Gambia: a Longitudinal Cohort Study (TransVIR)

Start date: February 1, 2021
Study type: Observational [Patient Registry]

Primary endpoints - Incidence of symptomatic and asymptomatic infection with SARS-CoV-2 and other respiratory viruses as determined by molecular (e.g. PCR) and serological testing - Associations between the magnitude and quality of mucosal and serum antibody responses to SARSCoV- 2 and protection from infection with SARS-CoV-2 - Associations between the magnitude and quality of T cell responses to SARS-CoV-2 and protection from infection with SARS-CoV-2 Secondary endpoints - Secondary attack rate and household cumulative infection rate with SARS-CoV-2, influenza, RSV, and other respiratory viruses - Seroincidence and seroprevalence of SARS-CoV-2 a determined by binding antibodies to SARS-CoV-2 spike and nucleocapsid - Presence of risk factors for symptomatic and asymptomatic infection with respiratory viruses - Antibody and T cell kinetics of SARS-CoV-2 following infection - Associations between the magnitude and quality of antibody and T cell responses to seasonal coronaviruses and protection from infection with SARS-CoV-2 - Associations between infection with non-SARS-CoV-2 respiratory viruses and protection from infection with SARS-CoV-2 - Associations between upregulation of gene expression in the mucosa, including interferon stimulated genes (ISGs), and protection from infection with SARS-CoV-2

NCT ID: NCT05447377 Recruiting - Yellow Fever Clinical Trials

A Study of SII Yellow Fever Vaccine to Compare Safety and Immunogenicity With STAMARIL® In Healthy Infants

Start date: September 16, 2022
Phase: Phase 3
Study type: Interventional

The study is designed as a Phase III, double-blind, multi-center, randomized, active-controlled study in which four groups of participants (n=554 per group) will receive either one of three different manufacturing lots of SII-YFV or STAMARIL® - a licensed and WHO pre-qualified YFV.

NCT ID: NCT05409274 Completed - Covid19 Clinical Trials

Understanding COVID-19 Infections in Pregnant Women and Their Babies in 5 African Nations (periCOVID Africa)

Start date: November 1, 2020
Study type: Observational

Develop coronavirus disease 2019 (COVID-19) surveillance in pregnancy in The Gambia, Kenya, Malawi, Mozambique and Uganda Estimate the seroepidemiology of COVID-19 infection among pregnant women in these countries Define the immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in pregnant women and their babies and determine the presence of antibodies in cord blood Work with communities to develop understanding of infection prevention and control techniques to reduce the spread of COVID-19 amongst the pregnant population

NCT ID: NCT05357560 Recruiting - Clinical trials for Malaria, Plasmodium Falciparum

A Study to Assess the Experimental Malaria Vaccines RH5.2-VLP and R21

Start date: July 10, 2023
Phase: Phase 1
Study type: Interventional

This is a Phase Ib multi-stage Plasmodium falciparum malaria vaccine study to assess the safety and immunogenicity of the blood-stage vaccine candidate RH5.2 virus-like particle (VLP) in Matrix-MTM and the pre-erythrocytic stage vaccine candidate R21 in Matrix-MTM, both alone and in combination, in adults and infants in the Gambia

NCT ID: NCT05325125 Recruiting - Clinical trials for Tuberculosis, Pulmonary

Childhood TB Sequel

Start date: March 29, 2022
Study type: Observational

This study aims to describe the long-term adverse outcomes associated with PTB in children, to describe the evolution of these sequelae, and to determine the epidemiological risk factors associated with these sequelae. The investigators will conduct a prospective cohort study. Children who have completed treatment for PTB will be enrolled. The study visit will be performed in the study clinic, where clinical assessment, spirometry and radiography will be performed. The planned duration of the study is 36 months. Participant enrolment is estimated to begin in March 2022. The estimated date of the last participant enrolled is December 2022.

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
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: NCT05117528 Completed - Clinical trials for Microbial Colonization

Streptococcus Pyogenes Carriage Acquisition and Transmission Study

Start date: July 27, 2021
Study type: Observational

Group A Streptococcus (GAS) is a bacteria which causes severe infections and leads to deadly diseases such as rheumatic heart disease which kills over 300,000 people a year globally, particularly in low-income countries. It is not know how GAS is spread between people, how often people carry GAS in their throat or on their skin without having symptoms, or what factors increase the chance of this occurring. It is important to understand these factors in order to know how to reduce GAS-related disease. This study will follow 444 people in The Gambia, over 12 months, taking samples from the throats and skin of people living in the same households, and asking questions about themselves and their behaviour, at regular intervals. By taking samples over time, the investigators hope to understand how common it is to carry GAS without having symptoms, how GAS is spread between people, and whether carrying GAS leads to more GAS infections in people or their household members. The study will use state-of-the-art techniques to look at the DNA of GAS bacteria that we find, and combine this with a mathematical model to investigate how different strains spread to people within and between households in the community.

NCT ID: NCT04751994 Completed - Iron-deficiency Clinical Trials

Iron Babies Pilot Supplementation Trial

Iron Babies
Start date: August 3, 2021
Phase: Phase 3
Study type: Interventional

2-arm, double blind, placebo controlled, randomised trial, with 50 6-week-old infants per arm randomized to 98 days of daily iron (1.5mg/kg/day as ferrous sulphate) or placebo drops