View clinical trials related to Tuberculosis.
Filter by:The study is to enroll 60 participants aged 18-65 years old, including 30 healthy subjects and 30 tuberculosis patients. Low-dose (2.5 μg/ml), medium-dose (5 μg/ml), and high-dose (10 μg/ml) studies will be conducted separately for healthy subjects and pulmonary tuberculosis patients, with 20 participants in each dosage group. Within 28 days after the skin test of the test drug, observations were made of reactions at the skin test site, reactions at non-skin test sites, concomitant medication, and any other physical discomfort (skin test site-specific reactions were recorded separately).
A randomized, open, drug controlled design of experiments was used to evaluate the early bactericidal activity, safety, tolerance and pharmacokinetic characteristics of JDB0131 benzenesulfonate tablet taken orally by drug sensitive pulmonary tuberculosis patients. Five groups are proposed to be set up in this test (JDB0131 benzenesulfonate 100mg BID, JDB0131 benzenesulfonate 200mg QD, JDB0131 benzenesulfonate 200mg BID, anti tuberculosis drug fixed dose composite dosage QD is determined according to the weight of the study participants, and delamanid 100mg BID)
Introduction: The large reservoir of tuberculosis infections is a key driver of sustained tuberculosis (TB) incidence. Accurate diagnostic tests are crucial to correctly identify and treat people with TB infection, which is vital to eliminate TB globally. The Cy-TB skin test and STANDARD F TB-Feron FIA (TB-Feron) fluorescent immunoassay are two newly developed TB infection tests, which could offer quality and cost advantages over other commercially available TB infection tests, especially the standard TST test. Both tests have a higher sensitivity and specificity than the currently most used tuberculin skin test. The proposed study aims to evaluate the performance of these two tests for the diagnosis of TB infection, compared with the QuantiFERON-TB Gold Plus (QFT-Plus) assay. Methods and analysis: This diagnostic accuracy study will employ a cross-sectional, observational design that aims to assess the accuracy of the Cy-TB and TB-Feron tests for diagnosing TB infection, using the QFT-Plus assay as the reference standard. The sensitivity and specificity will be reported. Three different cohorts of study participants will be recruited: Adults with microbiologically-confirmed pulmonary TB (n=100); Household contacts* of people with TB (n=200) and negative controls** (n=50). All participants will be examined with Cy-TB, TB-Feron, and QFT-Plus. *Household contacts: of a person with TB are defined as members who live under the same roof as the person with pulmonary tuberculosis (PTB) or who meet the following conditions: - Sleeping under the same roof or sharing a kitchen space as PTB-affected persons at least one night/week for three months before the person was diagnosed with PTB - Staying under the same roof with PTB-affected persons for at least one hour/day and continuously five days/week for three months before the person was diagnosed with PTB - Negative controls are defined as people with a negative QFT-Plus result in the past year and likely to have no or very low rates of TB exposure history.
It has been estimated that 1.7 billion people have tuberculosis (TB) infection; yet current tests are unable to predict which people are at highest risk of developing TB disease, which can be life-threatening. THWART-TB is a prospective longitudinal cohort study of health workers (HWs) in Cape Town, South Africa, where our preliminary data reveals HWs have a high annual TB infection risk (34%). This cohort, who will undergo frequent serial evaluation (every 3 months) with a combination of novel assays never previously evaluated together, presents a unique opportunity to evaluate immune responses at the time of initial infection and to characterize the dynamic profile of these immune responses over time in a high-risk population. The knowledge generated will improve our understanding of TB infection and help to identify which people exposed to TB may remain at risk, enabling us to better target preventive strategies.
This study will compare community-delivered, multi-month dispensing of tuberculosis preventive therapy (TPT) to standard-of-care clinic-based TPT delivery in a population of South African adults who are recommended to receive TB preventive therapy. We hypothesize that persons receiving multi-month dispensing of TPT in the community will have a higher rate of TPT completion at 3 months than persons receiving TPT via standard of care with monthly clinic-based refills.
This study is being done to test an experimental study vaccine compared to a placebo. The experimental study vaccine is called ID93 + GLA-SE. ID93 + GLA-SE has been used in humans in research but has not been approved for use in medical care. This study will be the first to test ID93 + GLA-SE in people living with HIV (PLWH). The injections during the study will be given to different groups of participants while they are using standard TB treatment. One of the research questions is to understand the differences in immune system responses depending on the timing of giving the injections after people begin taking standard TB treatment. Researchers also want to continue to look at whether the study vaccine is safe when tested in a larger group of people, and if getting the study vaccine in addition to standard TB treatment can help to lower the number of poor TB outcomes that people might have.
Tuberculosis (TB) is caused by mycobacterial organism. It is the leading infectious disease cause of death globally. According to recent estimates from the World Health Organization (WHO), over 10 million new cases and 1.6 million deaths from TB occurred in 2021. The vast majority of TB cases and TB deaths are in developing countries. Nigeria has the highest TB burden in Africa with a high number of undetected TB cases as well. The spread of HIV has fueled the TB epidemic, and TB is the leading cause of death among patients infected with HIV and has assumed the lead position as the number one infectious disease cause of death globally. Even though the COVID-19 was associated with a huge mortality, TB contributed significantly to death and one of the single predictors of death among COVID-19 infected individuals. TB predominantly affects young adults in their most productive years of life and has substantial impact on economic development. Emerging evidence has shown that lipid lowering drugs like statins can make the TB bacteria more susceptible to current treatment regimen. The ATORTUB group recently completed Phase II A and Phase IIB studies to assess the safety, tolerability and efficacy of atorvastatin when administered with the current standard of care. The investigators demonstrated that atorvastatin is well tolerated, save, and has beneficial microbiological and radiological impacts in tuberculosis, thus, warrants further studies. This phase IIC trial sets out to evaluate the safety and efficacy of different doses of atorvastatin containing regimen, determine rate of decline of viable sputum bacilli, the time to stable sputum conversion, improvement in chest ray severity scores and lung function parameters post randomization in the different treatment arms. The phase II C is a Selection Trial with Extended follow-up STEP and has been devised as a pilot phase III where patients are studied for longer period (12months post randomization) than the usual phase IIB. Thus, providing additional data that will justify a successful phase III trial.
A5409/RAD-TB is an adaptive Phase 2 randomized, controlled, open-label, dose-ranging, platform protocol to evaluate the safety and efficacy of multidrug regimens for the treatment of adults with drug-susceptible pulmonary tuberculosis (TB). A5409 hypothesizes that novel regimens for the treatment of pulmonary tuberculosis will result in superior early efficacy, as determined by longitudinal mycobacteria growth indicator tube (MGIT) liquid culture time to positivity (TTP) measurements over the first 6 weeks of treatment, and will have acceptable safety and tolerability over 8 weeks of treatment relative to standard of care [(SOC) isoniazid/rifampicin/pyrazinamide/ethambutol (HRZE)]. The study will run for 52 weeks, inclusive of 26 weeks of TB treatment comprised of 8 weeks of experimental or SOC treatment (based on treatment arm assignment) followed by 18 weeks of SOC treatment with 45 participants in each experimental treatment arm and at least 90 participants in the SOC arm.
Introduction: Tuberculosis (TB) infection is a key driver of the TB pandemic, with over 10.6 million people fell ill with TB disease in 2022. About one-quarter of the global population is estimated to be infected with TB bacteria. Around 5-10% of people with TB infection will develop active and contagious TB disease, which could be largely avoided if TB infection is identified and given effective preventative treatment, before progression to active disease. The long treatment of TB infection with regimens lasting from three to nine months is a significant barrier to treatment completion in individuals with a confirmed diagnosis of TB infection. Adapting a shorter regimen than the current regimens could lead to a higher treatment completion rate and increased uptake of preventative therapy for TB, as well as reduced side effects. Methods and analysis: An open-label, randomized clinical trial (1:1) will be performed in two study sites in Ha Noi, Vietnam (Vietnam National Lung Hospital and Ha Noi Lung Hospital). Adult household contacts (n=350) of people with new, bacteriologically-confirmed, pulmonary, drug-susceptible TB who initiate treatment will be invited to participate. Aim: To compare the TB preventive therapy completion rates and adverse event incidence between a new one-month regimen (1HP) versus the current three-month regimen (3HR)*. *1HP= one month of daily isoniazid (H/INH) and rifapentine (P/RPT) 3HR= three months of daily isoniazid (H/INH) and rifampicin (R/RIF)
Despite tremendous efforts, an effective tuberculosis (TB) vaccine remains elusive. TB continues to infect and kill many. In 2021, TB infected more than 10 million and killed 1.6 million people. To date, the M.bovis bacille Calmette Guerin (BCG) is the only licensed vaccine against tuberculosis (TB). Efforts to come up with new and effective vaccines have not been successful. Partially, the lack of suitable disease models and protection correlates hinders the research of new vaccines. Controlled human infection model studies (CHIM) involve administering disease-causing microbes to healthy individuals, with continued monitoring of disease response. These studies have been used to study malaria, typhoid, pneumococcal pneumonia and the recent SARS-CoV-2 vaccines. The BCG-Controlled Human Infection Model (BCG-CHIM) will allow accurate dosing with safe mycobacteria as well as minimal tissue sampling to understand immunity to mycobacteria. Considering that the M. bovis BCG is a safe living Mycobacteria, it can be used as a CHIM against which to test new vaccines.