Active clinical trials for "Tuberculosis"

In this longitudinal study with a follow up time of at least 6 months, up to 300 tuberculosis (TB) patients or TB suspects will be screened for TB using the Xpert MTB/RIF assay along with standard smear microscopy after Ziehl-Neelsen staining at the TB health clinic located at Mavalane health center. Confirmed TB cases will be followed up during TB therapy until month six after treatment initiation in order to obtain clinical and microbiological data on treatment including treatment response. Apart from relevant research questions in the field of TB diagnostics and treatment, the main objective of this study will be the development of a clinical TB research site, including capacity development in clinical and laboratory based TB research methods, in Mavalane, Maputo.

Haemoptysis is the coughing up of blood originating from the respiratory tract. It is a common and worrying clinical symptom which can be due to different aetiologies including lung cancer, tuberculosis, COPD, bronchiectasis, pneumonia, acute bronchitis or unknown origin (cryptogenic haemoptysis). Epidemiology and optimal diagnostic approach are largely unclear. Aims of this study are to define current epidemiology and to provide the best diagnostic approach by providing a diagnostic algorithm.

The purpose of this study is to determine of once identified to the subjects infected with human immunodeficiency virus (positive VIH), to diagnose latent Tuberculosis, and to treat her with isoniazid for six months, measuring the production of Interferon range pre and posttreatment, to evaluate this way the result of the treatment on the immune response

Tuberculous paradoxical reactions (PR) are immune reactions occurring during the course of antituberculous treatment and leading to a worsening of tuberculous symptoms after an initial improvement. This phenomenon has very extensively studied in HIV infected patients where it corresponds to the so called IRIS (immune reconstitution syndrome). However, it laso occurs in non immuno-compromized patients, especially those with extra-pulmonary localization of tuberculosis. The aim of the study is to look for risk factors of paradoxical reaction in non immuno-compromized patients with extra-pulmonary tuberculosis. The investigators will consider clinical, radiological and biological variables, including specific immune and genetic markers. Our secondary goals are to estimate the incidence of PR, describe their natural history; characterize the type of immune response they correspond to, and look for better diagnostic tools.The immunological characterization and the finding of predictive factors of PR, especially the genetic ones will allow a better understanding of biological mechanisms that lead to their occurrence during extra-pulmonary tuberculosis treatment. The establishment of predictive criteria could permit a better surveillance of at risk patients for a rapid treatment, or even a prevention of PR. The establishment of new diagnostic criteria at the time of PR could avoid numerous invasive diagnostic procedures, surgery and/or useless prolongation of antibiotic treatment.

The purpose of this is a study to provide early access of TMC207 to patients with pulmonary infection due to strains of Mycobacterium tuberculosis (M. tuberculosis) with resistance to isoniazid (INH), rifampin (RMP), and to a fluoroquinolone (FQ) and/or injectable second line tuberculosis (TB) drug (kanamycin, amikacin, or capreomycin) and who are unable/ineligible to participate in any other TMC207 study. In addition, information on safety and tolerability of TMC207 in combination with anti-TB drugs will be assessed and the results of microbiology assessments which are recommended to be performed during the early access study will be collected.

This observational Mycobacterium tuberculosis (MTB) diagnostics evaluation study is a longitudinal study of pulmonary TB suspects who are undergoing sputum evaluation for pulmonary TB. The sensitivity and specificity of the Xpert MTB/RIF (Mycobacterium tuberculosis/rifampin) assay performed on the first sputum collected for Xpert testing will be compared to gold standard conventional culture methods on two sputum specimens, in HIV-infected and HIV-uninfected participants.

The aim is to evaluate the time of positive conversion after exposure to smear positive pulmonary tuberculosis (TB) in a platoon of Korean military, a closed communal setting.

We easily regard nodules and fibrosis in upper lobes of lung as TB sequelae. The aim of this study is to confirm the prevalence of latent TB infection diagnosed by interferon-gamma release assay and tuberculin skin tests in patients with old healed TB.

New blood tests have become available to detect either latent or active tuberculosis. These tests - which according to the CDC can replace the tuberculin skin test - measure the production of gamma-interferon (a cytokine) by peripheral lymphocytes (white cells) when exposed to antigens which are highly specific of mycobacterium tuberculosis (the bacteria responsible for tuberculosis). Our hypothesis was that the production of gamma-interferon would be much higher at the beginning of treatment than at the end, and that decline in gamma-interferon secretion could be an indicator of clinical response to treatment.

Bronchiectasis was described in the early 19th century by Laennec. Bronchiectasis is a chronic condition characterized by permanent and irreversible dilatation of the bronchial airways and impairment of mucociliary transport mechanism due to repeated infection and inflammation leading to colonization of organism and pooling of the mucus in the bronchial tree