View clinical trials related to Tuberculosis.
Filter by:Background: Clinical guidelines and policies often fail to achieve high levels of delivery of intended clinical interventions. The difference in what the investigators know works and what is actually delivered at the clinic-level to patients, is known as the "science-to-service gap." In the realm of tuberculosis (TB) prevention, this gap is reflected in <20% of TB preventive therapy (TPT) -eligible persons living with HIV (PWH) being offered or initiated on isoniazid preventive therapy (IPT) in many settings. Recent innovation in TPT have brought new pharmacological options allowing for shorter courses, intermittent dosing, or both. The overarching goal of this study is to identify a generalizable approach to overcome current barriers to delivery of TPT in order to achieve high levels of TPT delivery during routine care in public clinics. Multiple approaches are in standard use to change prescribing behavior including in service training, audit and feedback, clinical mentoring, the use of clinical decision aids, and "academic detailing." However, the overall change is generally modest. To achieve a substantial increase in TPT delivery (from current approximately 20% to 60-80%) will require a fundamental change in the approach to selecting patients for TPT - a redesign of the choice architecture of TPT prescribing. Methods: The investigators are proposing a choice architecture that makes prescribing TPT the "default" or standard option and that for TPT not to be prescribed will require a choice by a clinician to "opt-out" of TPT for a specific patient. The investigators are proposing a cluster randomized design to test the choice architecture approach to increasing delivery of TPT. Clinics will be randomized to one of two strategies: (1) standard implementation and (2) choice architecture default TPT. Because of the clinic-level nature of the implementation strategies, all PWH receiving care at a clinic will be exposed to the standard implementation or TPT routinization implementation. Clinical process data will be used to assess the effectiveness of each strategy to determine the proportion of PWH (1) screened for TPT, (2) eligible for TPT, and (3) prescribed TPT. Significance: TB is the leading cause of death among PWH in South Africa and elsewhere on the continent. TPT is a proven intervention to reduce mortality among PWH but is not widely prescribed. This study seeks to identify an implementation strategy to reach optimal TPT prescribing.
Background: Clinical guidelines and policies often fail to achieve high levels of delivery of intended clinical interventions. The difference in what investigators know works and what is actually delivered at the clinic-level to patients, is known as the "science-to-service gap." In the realm of tuberculosis (TB) prevention, this gap is reflected in <20% of TB preventive therapy (TPT)-eligible persons living with HIV (PLWH) being offered or initiated on isoniazid preventive therapy (IPT) in many settings. Recent innovation in TPT have brought new pharmacological options allowing for shorter courses, intermittent dosing, or both. A 12-dose once-weekly rifapentine and isoniazid (3HP) regimen has been demonstrated to be effective and well tolerated. This regimen has several potential advantages over IPT; however, if patients are never assessed for 3HP eligibility and 3HP is not prescribed, TPT packets will remain on pharmacy shelves and the potential health benefits will not reach those who need it. The overarching goal of this study is to identify a generalizable approach to overcome current barriers to delivery of TPT in order to achieve high levels of TPT delivery during routine care in public clinics. Investigators are proposing a choice architecture that makes prescribing TPT the "default" or standard option and that for TPT not to be prescribed will require a choice by a clinician to "opt-out" of TPT for a specific patient. Methods: Investigators will use a cluster randomized design with the larger IMPAACT4TB (I4TB) program to deliver 3HP to countries in Africa, Asia, and Latin America. A subset of countries and clinics within these I4TB countries will be included with each clinic the unit of randomization. Clinics within study countries will be randomized to one of two strategies: (1) standard implementation within the UNITAID project (clinic training on TPT along with posters and other standard medication material) and (2) choice architecture default TPT. Clinical process data will be used to assess the effectiveness of each strategy to determine the proportion of PLWH (1) screened for TB preventive therapy, (2) eligible for TPT, and (3) prescribed TPT. Significance: Identifying a pragmatic approach will lead the way for improving TPT prescribing across the study sites. It will furthermore contribute to implementation science at large in describing implementation strategies that may be applied to clinic-level implementation of other innovations.
It is important for women taking rifampin to be aware if they are at greater risk of an unintended pregnancy while on the implant. An unintended pregnancy has many social, emotional, and financial impacts on women and society. Rifampin is also a Class C medication for pregnancy and could have potential negative effects on a developing fetus. Additionally, women considering rifampin for treatment of LTBI face additional risks with an unintended pregnancy, making the reliability of contraception even more important for these women. The results of this study can directly inform counseling on a national and international basis for women who use the contraceptive implant and are considering their treatment options for LTBI.
The purpose of this research is to find out if a single dose of pre-travel vaccination with BCG can lessen tuberculosis (TB) infection by producing an immune response when given to adults traveling to countries with a high burden of TB. BCG will be compared with a placebo (an inactive vaccine). BCG (Japan) is used globally but is not approved for use in the United States, therefore it is considered experimental. Participants choosing to take part in this research study, will be randomly assigned (this is like a coin flip) to BCG or placebo. 2000 eligible volunteers will be enrolled.
This study evaluate the effect of latent infection of tuberculosis on the pregnancy outcome of IVF-ET in infertile patients with radiographic lesions suggesting old healed tuberculosis
Tuberculosis in children is a major public health problem and it contributes 10% of the total TB cases worldwide. TB treatment outcomes in children are challenged by insufficient consideration of the relationships between doses administered, concentrations achieved and eventual desirable and undesirable effects (pharmacodynamics) of TB drugs. Rifampicin is a pivotal TB drug and data from adults suggest that a much higher dose of rifampicin (35 mg/kg instead of 10 mg/kg), resulting in much higher rifampicin exposures in plasma, is safe and tolerable and may provide a higher efficacy. The dose needed in children to achieve the same exposure in plasma is unknown.
The purpose of the study is to collect health-seeking pathways, sociodemographic characteristics and symptoms of 400 newly diagnosed patients with bacteriologically confirmed pulmonary tuberculosis(TB).
Currently in Taiwan, most clinicians use sputum smear and culture for the diagnosis of pulmonary tuberculosis (TB) and apply nucleic acid amplification (NAA) test in a selected manner. In 2013, the World Health Organization issued conditional recommendation that Xpert MTB/RIF may be used rather than conventional microscopy and culture as the initial diagnostic test in all adults suspected of having TB. The newly published Taiwan guidelines for TB diagnosis and treatment has recommended NAA test, together with smear and culture, as the initial diagnostic test in individuals suspected of having TB. The investigators conduct a prospective study to investigate the use of Xpert MTB/RIF as the initial diagnostic test of pulmonary TB under a pragmatic trial design.
This study will be investigating the effect of latent tuberculosis infection (LTBI) treatment on glucose tolerance and low-grade inflammation. Almost a century ago, researchers proposed that diabetes (DM) was associated with increased risk of Tuberculosis infection (TB). A more recent systematic review concluded that DM increases the relative risk for TB 3.1 times. Reversely, TB may affect the glycaemic control; TB is in many cases a chronic infection characterised by long term low-grade inflammation and weight loss, and persons with TB are known to be at risk of hyperglycaemia and DM at time of diagnosis. A latent infection with the m.tuberculosis bacteria is "silent" without symptoms. 1,7 billion have LTBI on a global scale. Event though the infected person does not experience symptoms, increased background inflammation has been shown in LTBI patients in previous studies. We also know that an increase in inflammatory markers precedes clinical development of DM, and that sub-clinical inflammation contributes to insulin resistance. We hypothesise that LTBI contributes to dysregulated glucose metabolism due to increased low-grade inflammation, and that treatment will reduce low-grade inflammation and improve glucose tolerance.
This is a pharmacokinetic study investigating the effect of rifampicin on the pharmacokinetics of intracellular tenofovir-diphosphate and plasma tenofovir when coadministered with tenofovir alafenamide fumarate during the maintenance phase of tuberculosis treatment in TB/HIV-1 coinfected participants (EpiTAF)