Application of GeneXpert on Bronchoscopic Samples in the Clinical Management of Patients Suspicious of TB

NCT ID: NCT02619240

Last Updated: 2019-04-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-10-31

Study Completion Date

2017-08-30

Brief Summary

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This is a case control observational study using Bronchial-alveolar lavage (BAL) as specimen for GeneXpert, a real time polymerase chain reaction (PCR) test for detection of tuberculosis (TB). Patients suspicious of TB, who require bronchoscopy as part of the investigation procedures, will be recruited for this study over a period of 18 months. Clinical likelihood of TB will be systematically scored according to various clinical parameters. This will determine the pre-test probability. Clinician will decide if anti-TB treatment is to be started and patients will be followed up for a minimal of 18 months. Sensitivity, specificity, positive, negative predictive values and the respective likelihood ratio will be calculated accordingly.

Detailed Description

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Conditions

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Tuberculosis

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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patients suspected of TB

patients suspected of TB requiring to undergo bronchoscopy as part of the investigation

bronchoscopy

Intervention Type PROCEDURE

performance of bronchoscopy with BAL

Interventions

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bronchoscopy

performance of bronchoscopy with BAL

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Patients \> 18 years old suspected of TB clinically.
2. Patients suspected of TB but both smear microscopy and TB PCR of sputum are negative or sputum cannot be produced.
3. BAL samples obtained following standard investigation procedure
4. CXR or CT imaging available.

Exclusion Criteria

1. Bronchoscopy is not planned as a necessary procedure for investigation.
2. Diagnosis of active TB has been made by other means.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chinese University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

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To Kin Wang

Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kin Wang To, MBChB

Role: PRINCIPAL_INVESTIGATOR

Honoary clinical assistant professor

Locations

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Department of Medicine and Therapeutics, Prince of Wales Hospital, CUHK

Shatin, , Hong Kong

Site Status

Countries

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Hong Kong

Other Identifiers

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CREC 2014.556

Identifier Type: -

Identifier Source: org_study_id

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