ACTG A5295: Evaluation of Xpert MTB/RIF Assay for the Rapid Identification of TB and TB Rifampin Resistance in HIV-Infected and HIV-Uninfected Pulmonary Tuberculosis Suspects

Investigator: Anne Luetkemeyer, MD
Sponsor: Cepheid

Location(s): United States


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.
HIV-1-infected and -uninfected men and women, 18 years and older, pulmonary TB suspects who have either a) smear positive sputum or b) clinical suspicion of pulmonary TB including one or more self-reported symptoms of cough, night sweats, weight loss, or fever. Within the 180 days prior to collection of the initial sputum sample, participants will have received none or fewer than 48 hours of TB treatment and, in those 48 hours, fewer than three doses of TB treatment.