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London Asthma Diagnostics Study
Sponsor: Imperial College London
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
Oscillometry with reversibility testing
Oscillometry is a test that uses sound waves to measure the mechanical properties in the lungs during tidal breathing
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
Nasal eosinophil peroxidase
We will be evaluating the sensitivity and specificity of a novel nasal swab test for eosinophil peroxidase
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