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Induced Sputum Versus Bronchoscopy in Smear Negative Pulmonary Tuberculosis

NCT01011543 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 160

Last updated 2018-08-03

No results posted yet for this study

Summary

This is a randomised study that compares different diagnostic approaches for diagnosing pulmonary tuberculosis in patients suspected of pulmonary tuberculosis in whom the three classic (non-induced) sputum samples didn't show tuberculous bacillus on direct examination.

The investigators compare the sensibility of induced sputum technique with an endoscopic approach (CT-scan followed by BAL and fluoroscopy-guided transbronchial biopsies and eventually sputum collection immediately after the bronchoscopy).

People in high risk population for tuberculosis undergoing screening by chest X-ray or symptomatic patients will be admitted to the hospital if their chest X-ray shows a suspicion of active tuberculosis.

According good clinical practice: (non-induced) sputum samples will be taken at admission and every following morning. If direct examination and PCR of the first three classic sputum samples are negative: patients will be randomised in two groups with a different diagnostic approach (induced sputum versus endoscopic approach) The aim of our study is to proof that a thoroughgoing endoscopic approach has a higher sensibility than an induced sputum in the diagnosis of pulmonary tuberculosis in patients with a high suspicion of active tuberculosis on the chest X-ray but with a negative direct examination and/or PCR on three consecutive normal sputum samples.

The investigators will include 154 patients (based on a statistical analysis for a hypothesis that the endoscopic approach has a sensibility that's twice the sensibility of the induced sputum).

* first arm: 2 consecutive induced sputum using an ultrasonic nebulizer.
* second arm: CT thorax to evaluate the exact anatomic localisation of the disease followed by fluoroscopy-guided bronchoscopy for BAL (bronchoalveolar lavage) and transbronchial biopsies. A sputum sample immediately after the endoscopy will be collected if possible.

Conditions

  • Pulmonary Tuberculosis

Interventions

PROCEDURE

Diagnostic techniques in pulmonary tuberculosis

Two different methods to obtain a diagnosis of pulmonary tuberculosis in patients with negative classic sputum samples are compared.

Sponsors & Collaborators

  • Centre Hospitalier Universitaire Saint Pierre

    lead OTHER

Principal Investigators

  • Inge M Muylle · CHU St Pierre Brussels

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-08-31
Primary Completion
2015-12-31
Completion
2015-12-31

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01011543 on ClinicalTrials.gov