Actively Recruiting

Age: 18Years - 100Years
All Genders
NCT06221488

Testing Health Workers At Risk to Advance Our Understanding of TB Infection

Led by Beth Israel Deaconess Medical Center · Updated on 2025-05-23

300

Participants Needed

1

Research Sites

311 weeks

Total Duration

On this page

Sponsors

B

Beth Israel Deaconess Medical Center

Lead Sponsor

U

University of Stellenbosch

Collaborating Sponsor

AI-Summary

What this Trial Is About

It has been estimated that 1.7 billion people have tuberculosis (TB) infection; yet current tests are unable to predict which people are at highest risk of developing TB disease, which can be life-threatening. THWART-TB is a prospective longitudinal cohort study of health workers (HWs) in Cape Town, South Africa, where our preliminary data reveals HWs have a high annual TB infection risk (34%). This cohort, who will undergo frequent serial evaluation (every 3 months) with a combination of novel assays never previously evaluated together, presents a unique opportunity to evaluate immune responses at the time of initial infection and to characterize the dynamic profile of these immune responses over time in a high-risk population. The knowledge generated will improve our understanding of TB infection and help to identify which people exposed to TB may remain at risk, enabling us to better target preventive strategies.

CONDITIONS

Official Title

Testing Health Workers At Risk to Advance Our Understanding of TB Infection

Who Can Participate

Age: 18Years - 100Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • 18 years old or older
  • Health worker
  • Able to provide informed consent
Not Eligible

You will not qualify if you...

  • Prior history of tuberculosis (TB) or known prior positive interferon gamma release assay (IGRA)
  • Current or prior history of taking anti-TB treatment

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Trial Site Locations

Total: 1 location

1

Stellenbosch University

Cape Town, South Africa

Actively Recruiting

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Research Team

R

Ruvandhi Nathavitharana, MBBS MPH

CONTACT

G

Grant Theron, PhD

CONTACT

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

1

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