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Comparing a new test for tuberculosis with conventional tests

Xpert MTB/RIF Ultra assay for the detection of Mycobacterium tuberculosis (MTB) in bronchoalveolar lavage (BAL) for pulmonary TB and endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) samples for mediastinal TB

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN35629189
Enrollment
646
Registered
2021-02-16
Start date
2020-08-17
Completion date
Unknown
Last updated
2025-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tuberculosis Infections and Infestations Tuberculosis

Interventions

This is a prospective multi-centre study across the UK including London, Birmingham, Leicester and Manchester which account for the highest proportion of TB cases in the UK. These are centres routinel

Sponsors

Imperial College Healthcare NHS Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Any consenting adult =18 years of age suspected of having pulmonary TB or mediastinal TB who is undergoing a routine clinical bronchoscopy or EBUS-TBNA

Exclusion criteria

Exclusion criteria: Any patient who has had a BAL or EBUS-TBNA but has not had Xpert Ultra testing as part of routine diagnostics for possible TB

Design outcomes

Primary

MeasureTime frame
The diagnostic performance of Xpert Ultra in BAL and EBUS-TBNA samples in patients with suspected TB against conventional modalities available (smear microscopy, culture, cytology) using a subgroup analysis of the different clinical categories attributing to the likely TB diagnosis, measured at a single timepoint

Secondary

MeasureTime frame
1. Turn-around time for Xpert Ultra against standard smear, culture, cytology results and its effects on treatment decisions, measured using clinical, microbiological, cytological data, radiology and biomarkers of infection collected throughout the study 2. The operating characteristics of this platform in varying clinical phenotypes, evaluated by stratifying patients based on risk factors, clinical presentations, radiological appearances and histological results and comparing this with Xpert Ultra results (including ‘trace’) at a single timepoint

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026