Real-World implementation and effectiveness of tuberculosis preventive treatment in school health services in china
NCT ID NCT07811518
First seen Sep 10, 2026 · Last updated Sep 10, 2026
Summary
The goal of this study is to learn whether taking short-course preventive treatment in high school and college freshmen with strong positive tuberculosis (TB) skin tests can safely and effectively protect them from developing active TB over a 3-to-4-years period. Main question: Does taking short-course preventive treatment reduce the risk of active TB in freshmen who have strong positive TB skin tests? All freshmen across 26 schools in Meishan City, Sichuan Province, China were screened for TB. Among them, the students with strong positive skin tests (indicating latent TB infection) and no active disease entered the study. Students voluntarily chose to either take a 3-month short-course preventive treatment under campus medical supervision or receive routine health observation without medication. Researchers tracked all participants for 3 to 4 years to monitor who developed active TB and evaluate the treatment's safety and effectiveness.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 3,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2022
- Expected to finish
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Aug 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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14 to 24 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Matriculating freshmen aged 14-24 years enrolled across 26 participating educational institutions * Completion of baseline tuberculosis screening, including systematic symptom screening, digital chest radiography, and tuberculin skin test (TST) * Target cohort requirement: TST strong reactivity (induration ≥15 mm or severe local reactions such as blisters, necrosis, or lymphangitis) with active TB ruled out at baseline * Control cohort requirement: TST induration \<15 mm (including negative \<5 mm, weakly positive 5-9 mm, and moderately positive 10-14 mm) Exclusion Criteria: * Presence of active TB at baseline screening * Voluntary receipt of Vaccae vaccination (for the target cohort)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Affiliated Hospital of Nantong University
RECRUITINGNantong, Jiangsu, 226001, China
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Meishan Municipal Center for Disease Prevention and Control
RECRUITINGMeishan, Sichuan, 620010, China
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Other studies related to the condition(s) this trial covers.
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