Comparing Consistency of QuantiFERON-TB Gold Plus and QuantiFERON-TB Gold for Latent Tuberculosis in Dialysis Population

December 13, 2016 updated by: National Taiwan University Hospital
In patients receiving long term dialysis, using new generation of QuantiFERON-TB Gold Plus can have less result variability in inter-experiment and serial follow up in comparing with QuantiFERON-TB Gold In-tube.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Tuberculosis (TB) remains one of the most important infectious diseases worldwide. According to the World Health Organization (WHO) estimates, there were 9 million new TB cases and 1.5 million related deaths in 2013. Future control strategies include early treatment for preventing transmission and treatment of latent TB infection (LTBI) for reducing reactivation. Patients with renal failure undergoing dialysis have increased risk of TB due to attenuated cellular immunity. For instance, their risk of developing active TB in the dialysis population is 7.8-25 times higher than that of the general population. However, TB diagnosis is usually delayed because of frequent extra-pulmonary manifestations. Thus, LTBI detection in this specific group is important.

Positive results of interferon-gamma release assays (IGRAs) and the exclusion of active TB are the current diagnostic bases of LTBI, which is a precursor of tuberculosis reactivation. However, recent reports show a high negative reversion rate of quantiFERON Gold In-tube (QFT-GIT), a kind of IGRA, in cohorts of health care workers (33% after 18 weeks) close TB contacts (35% after six months), and patients receiving long-term dialysis (46% after six months). This phenomenon questions the clinical significance of a single positive IGRA result. Increasing the IGRA threshold or doing serial follow-up to improve specificity have both been suggested but there is no comparison by the risk of TB development.

Therefore, increasing the accuracy and stability and then improving the rate of negative conversion from positive IGRA results are very important. Currently, new generation of QuantiFERON-TB Gold Plus includes two tubes for CD4 and CD8 T cells response, which can indicate TB immune response more specifically. The investigators applied this project to compare the performance of diagnosing LTBI by QuantiFERON-TB Gold Plus in comparing QuantiFERON-TB Gold In-tube.

Study Type

Observational

Enrollment (Anticipated)

200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
    • Select...
      • Taipei, Select..., Taiwan, 100
        • Recruiting
        • National Taiwan University Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Dialysis population

Description

Inclusion Criteria:

  • Age ≧ 20 years
  • Receiving long term dialysis

Exclusion Criteria:

  • Having tuberculosis previously

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Dialysis group
Patient receiving long term dialysis
Other: Examination of latent TB by QuantiFERON-TB
Examination of latent TB by QuantiFERON-TB both QFT-plus QFT-GIT

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
percentage of positive QFT
Time Frame: 1 week
Compare the results of QFT-plus and QFT-GIT
1 week
percentage of positive QFT change
Time Frame: 1 week and 1 year
Compare the change of the QFT-plus and QFT-GIT report by serial follow up
1 week and 1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
percentage of occurrence of active TB
Time Frame: 2 year
anticipated 2 years
2 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Taiwan University Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2016

Primary Completion (Anticipated)

May 1, 2018

Study Completion (Anticipated)

May 1, 2018

Study Registration Dates

First Submitted

May 11, 2016

First Submitted That Met QC Criteria

May 22, 2016

First Posted (Estimate)

May 25, 2016

Study Record Updates

Last Update Posted (Estimate)

December 15, 2016

Last Update Submitted That Met QC Criteria

December 13, 2016

Last Verified

December 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 201603066DIPB

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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