New handheld breathing device test for asthma or COPD diagnosis

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 tests a new tidal breathing approach alongside partial pressure of CO2, FENO, and spirometry to determine diagnostic accuracy for asthma and COPD. Participants are adults referred for respiratory testing and will undergo the handheld breathing test in addition to standard tests. The goal is to see if this quick test can provide accurate results in a clinical setting and help streamline diagnosis. The study is led by Liverpool Heart and Chest Hospital NHS Foundation Trust with collaboration from TidalSense and focuses on real-world diagnostic pathways. Results may support easier, faster testing outside traditional spirometry-centered workflows.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age ≥ 18 years
* Referred for respiratory diagnostic testing with a clinical suspicion of asthma or COPD
* Participant is willing and able to provide informed consent

Exclusion Criteria:

* Referred for respiratory diagnostic testing for a condition other than asthma or COPD, with no mention in the referral of a clinical suspicion of COPD or asthma
* Participants who, in the opinion of the chief investigator, or their delegate, are unlikely to comply with the requirements of the study
* Inability to give written informed consent
* Participants who are acutely unwell
* Patients unable to breathe through their mouths e.g. tracheostomy patients

Where it's running

• Liverpool Heart and Chest Hospital NHS Foundation Trust
  Liverpool, Merseyside, United Kingdom Recruiting

Study contacts

• Study coordinator: Hassan Burhan, MBChB FRCP
• Email: Hassan.Burhan@liverpoolft.nhs.uk
• Phone: 0151 254 3036

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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.