Comparing tests for diagnosing asthma

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study evaluates the effectiveness of various diagnostic approaches for asthma, focusing on the concordance of international guidelines and the use of impulse oscillometry (IOS) as a non-invasive lung function test. By analyzing data from patients attending the severe asthma service at Queen Alexandra Hospital in Portsmouth, the study aims to identify how well IOS performs compared to traditional diagnostic criteria. The research will utilize an 'opt-out' consent process to assess routine outpatient lung function data, contributing valuable insights into asthma diagnosis. The goal is to enhance the accuracy and ease of diagnosing asthma, addressing inconsistencies in current practices.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* The patient will meet all the following criteria to be considered eligible for the study:

  * Aged 18 years or over.
  * All patients who have attended full asthma workups from November 2021 till date
  * Willing and able to consent to use their data in this study (opt-out form or e-consent).
  * Patients referred to the Portsmouth asthma service for diagnosis and further management of presumed asthma. Comorbidities are common in asthma, thus patients with co-existing conditions such as obesity, bronchiectasis or COPD will be included.

Exclusion Criteria:

* The participant may not enter the study if either of the following apply:

  * Unable to comprehend the study and provide informed consent, e.g., insufficient command of English in the absence of someone who can adequately interpret.
  * Patients with other primary respiratory conditions, such as ILD.

Where it's running

• Portsmouth Hospitals University NHS Trust
  Portsmouth, United Kingdom Recruiting

Study contacts

• Principal investigator: Anoop Chauhan — Portsmouth University Hospital Trust
• Study coordinator: celia Selvin-Premkumar
• Email: celia.selvin-premkumar@porthosp.nhs.uk
• Phone: 02392 286000

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.