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Contact Investigation for Latent Tuberculosis Infection in Healthcare Workers: Exploring Adverse Events Correlation with NAT2 Genotype

Contact Investigation for Latent Tuberculosis Infection in Healthcare Workers: Exploring Adverse Events Correlation with NAT2 Genotype

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20240609004
Enrollment
90
Registered
2024-06-09
Start date
2023-09-01
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthcare workers at Vajira Hospital diagnosed with LTBI who have had close contact with patients diagnosed with pulmonary tuberculosis during the past 3 months and have undergone treatment with the 3HP regimen Healthcare workers, Latent tuberculosis infection, Tuberculosis preventive therapy, NAT2 genotype

Interventions

HCWs with no or minimal ADEs during the 12 weeks until completing the full course of treatment,TPT was discontinued during treatment due to serious ADEs (defined as death, life-threatening, hospitaliz
Treatment,Treatment
Complete treatment,Incomplete treatment

Sponsors

None listed

Eligibility

Sex/Gender
All
Age
18 Years to 79 Years

Inclusion criteria

Inclusion criteria: Healthcare workers with LTBI at Vajira Hospital who have had significant close contact with patients diagnosed with pulmonary tuberculosis during the 3 months before the index case began treatment, meeting one of the following criteria: 1.Contact with contagious TB for at least 8 hours per day in the same location. 2.Cumulative contact of 120 hours or more per month with contagious TB patients. 3.Exposure to poorly ventilated areas where contagious tuberculosis patients were present and where adequate personal protective equipment (PPE) was not used

Exclusion criteria

Exclusion criteria: 1. HCWs with a history of contact with patients diagnosed with drug-resistant tuberculosis, viral hepatitis infection, human immunodeficiency virus infection, abnormal liver function tests, related to high access alcohol, active cancer on treatment, unstable myocardial ischemia, heart failure grade 3 or 4, other serious illness, potentially serious drug interactions, history of allergic reaction to isoniazid or rifapentine 2. HCWs deny to participate 3. Incomplete data

Design outcomes

Primary

MeasureTime frame
Adverse drug events at 3 months (end of the treatment) Dose onset of any ADEs, ADE severity, Fever, Fatigue, Headache, Myalgia, Flu-like syndrome, Nausea, vomiting, Diarrhea, Hepatotoxicity, Peripheral neuropathy, Cutaneous reaction

Secondary

MeasureTime frame
NAT2 genotypes at 3 months (end of the treatment) or stop treatment Rapid acetylator, Intermediate acetylator, Slow acetylator

Countries

Thailand

Contacts

Public ContactPipu Tavornshevin

Faculty of Medicine Vajira Hospital, Navamindradhiraj University

pipu.tav@nmu.ac.th0878004108

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026