Active tuberculosis

This study tests whether a 4-week course of two TB drugs works as well as the standard 3-month course to prevent active TB in students and staff who have been exposed. About 3,520 people from schools will take either the short or standard regimen. The goal is to see if the shorte…

This study tests whether adjusting the dose of the TB drug rifampin based on a simple urine test can improve treatment outcomes. Researchers will enroll 200 adults and children with active, drug-sensitive tuberculosis in Tanzania. The goal is to see if personalized dosing helps m…

This study tests a new skin test (C-TST) to find hidden tuberculosis (TB) infection in people with rheumatic diseases like rheumatoid arthritis who are about to start powerful medications called biologics. These drugs can reactivate dormant TB, so accurate screening is critical. …

This study follows 150 people with active or latent tuberculosis (TB) to collect blood, sputum, and tissue samples. The goal is to better understand how TB behaves in the body and how the immune system responds. Participants receive standard TB treatment as part of the study, but…

This study looks at how different types of mycobacterial infections, including drug-resistant tuberculosis and nontuberculous mycobacteria, change the body's immune response. Researchers will collect blood and other samples from 120 participants, including healthy people and thos…

This study explores whether measuring tiny DNA fragments from the TB bacteria in the blood can help doctors monitor how well treatment is working. Researchers will enroll 140 adults with newly diagnosed TB in Thailand, taking blood samples over time to see if the DNA levels drop …

This study looks at how common certain infections are among 250 asylum seekers living in reception centers in Italy. Participants must be adults who arrived in Italy between 2 and 36 months ago. The goal is to better understand infection rates to improve health screening and care…

This study looks at whether people with tuberculosis (TB) who have no symptoms can still pass the infection to others. Researchers will follow about 6,770 participants, including those with HIV, and use advanced genetic testing to track TB spread among close contacts. The goal is…