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NOT YET RECRUITING
NCT06383130

London Asthma Diagnostics Study

Sponsor: Imperial College London

View on ClinicalTrials.gov

Summary

The goal of this trial is to learn if the addition of oscillometry with reversibility testing increases diagnostic accuracy in adult asthma diagnosis, when added to current standard of care tests: spirometry with reversibility testing and Fractional Exhaled Nitric Oxide (FeNO). The main question it aims to answer is: \- Does oscillometry with reversibility testing increase diagnostic accuracy in detection of asthma in adults when added to spirometry with reversibility and FeNO? Researchers will evaluate the diagnostic accuracy of this approach with the reference standard, which is a clinically adjudicated diagnosis of asthma by two respiratory clinicians based on history and investigation results. Participants will * Undergo oscillometry testing alongside their routine asthma investigations within their scheduled clinic visit * Optionally participate in our sub-studies on new breath and nasal swab tests for asthma * Optionally participate in our qualitative substudy on patients views and attitudes to asthma testing and oscillometry

Official title: A Pragmatic Diagnostic Accuracy Study of a Triple Diagnostic Approach and Exploratory Biomarkers in Adult Asthma Diagnosis

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

OBSERVATIONAL

Enrollment

225

Start Date

2024-06

Completion Date

2026-07

Last Updated

2024-04-25

Healthy Volunteers

No

Conditions

Interventions

DIAGNOSTIC_TEST

Oscillometry with reversibility testing

Oscillometry is a test that uses sound waves to measure the mechanical properties in the lungs during tidal breathing

DIAGNOSTIC_TEST

Breath volatile testing

We will be optimising and evaluating the sensitivity and specificity of a novel breath volatile organic compound test of a combination of reactive aldehydes using a gas chromatography-ion mobility spectrometry device

DIAGNOSTIC_TEST

Nasal eosinophil peroxidase

We will be evaluating the sensitivity and specificity of a novel nasal swab test for eosinophil peroxidase

DIAGNOSTIC_TEST

Handheld capnometry

We will be evaluating handheld capnometry (carbon dioxide breath testing) to diagnose adult asthma

Locations (3)

Imperial College Healthcare NHS Trust

London, United Kingdom

Imperial College Healthcare NHS Trust

London, United Kingdom

Nottingham University Hospitals NHS Trust

Nottingham, United Kingdom