Prospective Comparison of the Tuberculin Skin Test and Interferon-Gamma Release Assays in Diagnosing Infection With Mycobacterium Tuberculosis and in Predicting Progression to Tuberculosis
Public ClinicalTrials.gov record NCT01622140. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT01622140
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Centers for Disease Control and Prevention
- Federal
- Enrollment
- 21,334 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 30, 2012
- Primary completion
- Dec 30, 2020
- Completion
- Dec 30, 2020
- Last update posted
- Jan 27, 2021
2012 – 2020
United States locations
- U.S. sites
- 10
- U.S. states
- 10
- U.S. cities
- 10
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Maricopa County Department of Public Health | Phoenix | Arizona | 85006 | — |
| California Department of Public Health | Richmond | California | 94804 | — |
| Denver Health and Hospitals Authority | Denver | Colorado | 80204 | — |
| University of Florida Board of Trustees | Gainesville | Florida | 32611 | — |
| Emory University | Atlanta | Georgia | 30303 | — |
| Hawaii Department of Health | Honolulu | Hawaii | 96817 | — |
| Maryland Department of Public Health | Baltimore | Maryland | 21201 | — |
| Duke University | Durham | North Carolina | 27708 | — |
| University of North Texas Health Science Center | Fort Worth | Texas | 76107 | — |
| Public Health Seattle-King County | Seattle | Washington | 98104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01622140, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 27, 2021 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01622140 live on ClinicalTrials.gov.