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Screening for Latent Tuberculosis in Healthcare Workers With Quantiferon-Gold Assay: A Cost-Effectiveness Analysis

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2007 by Assuta Hospital Systems.
Recruitment status was:  Recruiting
Information provided by:
Assuta Hospital Systems Identifier:
First received: March 19, 2007
Last updated: May 28, 2007
Last verified: May 2007

The ministry of health in Israel requires all health-care workers to undergo screening for latent Tuberculosis infection (LTBI) prior to starting work. This is based on the Mantoux skin test, which is notoriously unreliable.

In recent years, more specific and sensitive tests based on interferon-gamma secretion to TB antigens have come to market, and most current evidence shows that many mantoux positive persons do not have LTBI. Quantiferon-GOLD is one of these assays.

In this prospective study, we will draw blood for the Quantiferon-GOLD assay in parallel to conventional testing, and perform a cost-effectiveness analysis of the cost of the investigation and treatment of LTBI in health-care workers.

We hypothesize that in spite of the cost of screening healthcare workers with Quantiferon-GOLD tests, the reduction in need for LTBI treatment and associated costs will render the test cost-effective.

Condition Intervention
Latent Tuberculosis Infection Procedure: Blood test for Quantiferon-GOLD assay

Study Type: Observational
Study Design: Observational Model: Defined Population
Primary Purpose: Screening
Time Perspective: Longitudinal
Time Perspective: Prospective

Resource links provided by NLM:

Further study details as provided by Assuta Hospital Systems:

Estimated Enrollment: 150
Study Start Date: May 2007

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Health care worker undergoing screening for LTBI

Exclusion Criteria:

  • Previous tuberculosis or treatment for LTBI
  • Immunosuppressed due to drug treatment, HIV, organ transplant
  • Recent TB contacts
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00449345

Contact: David Shitrit, MD +972 8 946 8617
Contact: Ben Fox, MRCP +972 8 946 8617

Community Tuberculosis service Recruiting
Rehovot, Israel
Sponsors and Collaborators
Assuta Hospital Systems
Principal Investigator: David Shitrit, MD Maccabi Healthcare Services, Israel
  More Information Identifier: NCT00449345     History of Changes
Other Study ID Numbers: 2006055
Study First Received: March 19, 2007
Last Updated: May 28, 2007

Keywords provided by Assuta Hospital Systems:
Latent tuberculosis infection
Health care workers
Tuberculin skin test
Mantoux skin test
Interferon gamma
Cost effectiveness

Additional relevant MeSH terms:
Latent Tuberculosis
Mycobacterium Infections
Actinomycetales Infections
Gram-Positive Bacterial Infections
Bacterial Infections processed this record on September 19, 2017