Prevalence of Latent Tuberculosis (TB) Infection Diagnosed by Interferon-gamma Release Assay and Tuberculin Skin Tests in Patients With Old Healed TB

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01099098

Enrollment

480

Registered

2010-04-06

Start date

2010-01-31

Completion date

2011-03-31

Last updated

2011-05-12

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

Conditions

Tuberculosis

Keywords

People who have fibrosis or nodules in their upper lobe of the lung

Brief summary

We easily regard nodules and fibrosis in upper lobes of lung as TB sequelae. The aim of this study is to confirm the prevalence of latent TB infection diagnosed by interferon-gamma release assay and tuberculin skin tests in patients with old healed TB.

Interventions

None listed

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

20 Years to 80 Years

Healthy volunteers

Yes

Inclusion criteria

* Age \> 20 years * Patients with TB sequelae in their CXR

Exclusion criteria

* Patients on immune-suppressants

Design outcomes

Primary

Measure	Time frame
Prevalence of latent TB infection	At enrollment

Countries

South Korea

Outcome results