Application of GeneXpert on Bronchoscopic Samples for Patients Suspicious of TB

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

219 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-11-30

Study Completion Date

2017-04-30

Brief Summary

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This is an 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.

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Detailed Description

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Conditions

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Observation

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Interventions

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GeneXpert

Real time integrated and automated nucleic acid amplification test for detection of TB

Intervention Type DEVICE

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.