Active clinical trials for "Tuberculosis, Pulmonary"

This study will evaluate the ability of 4 antibiotics to kill the bacteria that cause tuberculosis (TB). The antibiotics to be studied are linezolid, gatifloxacin, levofloxacin, and moxifloxacin. All are approved by the Brazilian health authorities to treat infections caused by germs other than TB. Seventy human immunodeficiency virus (HIV)-negative adults, aged 18-65 years, who have been newly diagnosed with pulmonary (lung) TB, will participate in this study. Study volunteers will be given one of the 4 study drugs or a comparison antibiotic, Isoniazid, which has been used around the world as a standard of care treatment for TB. Volunteers will stay in the hospital for 10 days and be given a study antibiotic 7 of those days. Blood and saliva samples will be taken. Six weeks later, volunteers will return for a final health check. All volunteers will receive 6 months of standard tuberculosis treatment.

This study is a placebo-controlled factorial study, randomized to study drug (moxifloxacin vs. ethambutol) and treatment frequency (daily vs. thrice weekly after an initial two weeks of daily therapy) during the first two months of standard treatment (with isoniazid, rifampin, and pyrazinamide) for sputum smear-positive pulmonary tuberculosis.

The trial will evaluate the extended bactericidal activity of 14 consecutive days of oral administration of TMC207 alone, TMC207 with pyrazinamide, TMC207 with PA-824, PA-824 with pyrazinamide and PA-824 with moxifloxacin and pyrazinamide, as determined by the rate of change of log CFU in sputum over the time period Day 0-14 in participants with smear positive pulmonary tuberculosis (TB). A control group will receive standard treatment.

Testing of AI solutions to assess diagnostic accuracy for tuberculosis detection.

The correlation of the morphologic, microbiological, genetic and histopathological characteristics of TB lesions obtained in therapeutical surgery with the clinical forms and features of the patients will provide essential information on the role of the host in the mechanisms associated to the generation and evolution of active TB and about future diagnostic and/or prognostic biomarkers of TB disease. All this information could be used for patients stratification and/or to design new therapeutic strategies.

The trial will evaluate the extended bactericidal activity of 14 consecutive days of oral administration of PA-824 at 200, 600, 1000 and 1200 mg per day in adult patients with newly diagnosed, uncomplicated, smear positive tuberculosis. A control group will receive standard TB treatment.

The trial will evaluate the extended bactericidal activity of 14 consecutive days of oral administration of PA-824 at 50, 100, 150 and 200 mg per day in adult patients with newly diagnosed, uncomplicated, smear positive tuberculosis (TB). A control group will receive standard TB treatment.

To determine the demographic, behavioral, clinical, and geographic risk factors associated with the occurrence of multidrug-resistant pulmonary tuberculosis (MDRTB). To evaluate the clinical and microbiological responses and overall survival of MDRTB patients who are treated with levofloxacin-containing multiple-drug regimens chosen from a hierarchical list. Per 9/28/94 amendment, to assess whether persistent or recurrent positive sputum cultures of patients who show failure or relapse are due to the same strain or reinfection with a new strain. Among TB patients, there has been an increase in progressive disease due to the emergence of antimycobacterial drug-resistant strains of Mycobacterium tuberculosis. Failure to identify patients at high risk for MDRTB increases the hazard for both treatment failure and development of resistance to additional therapeutic agents. Efforts to improve survival in patients with MDRTB will depend on improved methods of assessing the risk of acquisition of MDRTB and identifying drug susceptibility patterns in a timely fashion.

The purpose of this study is to determine whether vitamin D enhances response to standard antibiotic treatment for pulmonary tuberculosis.

This trial aims to determine whether the early bactericidal activity of rifampicin given with faropenem or cefadroxil (each given with amoxicillin/clavulanic acid) is greater than the activity of rifampicin alone in patients with pulmonary TB. The trial will also investigate potential new biomarkers of sterilising activity.