About this trial
Every year, more than 3 million people with TB remain undiagnosed and 1 million die. Better diagnostics are essential to reducing the enormous burden of TB worldwide. The Assessing Diagnostics At Point-of-care for Tuberculosis (ADAPT) study seeks to reduce the burden of TB worldwide by evaluating faster, simpler, and less expensive TB triage and diagnostic tests.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
cough ≥2 weeks' duration, a commonly accepted criterion for identifying people with presumed pulmonary TB (to facilitate standardization across sites and comparison of test performance across sub-groups; OR
People Living with Human Immunodeficiency Virus (PLHIV) (Risk Factor): C Reactive Protein (CRP) >5 mg/dL OR abnormal chest x-ray (CXR)
Self-reported Close Contact (Risk Factor): abnormal CXR History of mining work (Risk Factor): abnormal CXR
Disqualifiers
Completed latent or active TB treatment within the past 12 months (to increase TB prevalence and reduce false-positive results, respectively);
Have taken any medication with anti-mycobacterial activity (including fluoroquinolones) for any reason, within 2 weeks of study entry (to reduce false-negatives);
Reside >20km from the study site or are unwilling to return for follow-up visits; OR
Are unwilling to provide informed consent
Trial design
Single group
Treatments tested in this trial
Tongue swab-based molecular assays
Diagnostic testThe investigators will evaluate semi-automated or automated molecular assays intended for use at near point of care or point of care.
Treatment groups
Trial outcomes
Primary outcomes
Proportion with positive index test result among participants with tuberculosis (TB)
Sensitivity - Number with positive index test result/(Number with positive or negative index t test result) among participants with TB. TB will be defined based on a microbiological reference standard (sputum mycobacterial culture results)
Proportion with negative index test result among participants without tuberculosis (TB)
Specificity - Number with negative index test results/(Number with positive or negative index t test result) among participants without TB. TB will be defined based on a microbiological reference standard (sputum mycobacterial culture results)
Sponsors and contacts
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University of California, San Francisco
Lead sponsor
University Hospital Heidelberg
Collaborator
KNCV Tuberculosis Foundation
Collaborator
Bingham University
Collaborator
University of California, Irvine
Collaborator
De La Salle University Medical Center
Collaborator
Centre for Infectious Disease Research in Zambia
Collaborator
Johns Hopkins University
Collaborator