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Breathing diagnosis tool study pulled before starting

NCT ID NCT04255446

Diagnosis Sponsor: Pneumacare Ltd Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to see if a device called Thora3Di, which uses light to measure breathing, could help diagnose and monitor dysfunctional breathing. It planned to compare the device's readings with standard questionnaires in adults with breathlessness and healthy volunteers. However, the study was withdrawn before enrolling any participants, so no results are available.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Cohort A: Any adult who is presenting with controlled disproportionate breathlessness will be considered for inclusion as a diseased subject (with excluded comorbidities as cause of breathlessness e.g. uncontrolled asthma (GINA 2019 guidelines), uncontrolled cardiac disease, ILO). • Cohort B: Any adult who is in good respiratory health will be considered for inclusion as a normal in the study.

Ages

16 to 75 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * • Cohort A: Any adult who is presenting with controlled disproportionate breathlessness will be considered for inclusion as a diseased subject (with excluded comorbidities as cause of breathlessness e.g. uncontrolled asthma (GINA 2019 guidelines), uncontrolled cardiac disease, ILO). * Cohort B: Any adult who is in good respiratory health will be considered for inclusion as a normal in the study. Exclusion Criteria: * Subject unable to sit in an upright position for required period * Subjects with significant co morbidities (assessed by the clinician at screening only): * Chest wall or spinal deformity e.g. scoliosis OSA, Apnoea hypopnoea index \> 30 (if known) * Any other significant disease or disorder which, in the opinion of the investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participants' ability to participate in the study * BMI \> 40 * Height \> 194 cm * Female participant who is pregnant, lactating or planning pregnancy during the course of the study * Inability to consent/comply with trial protocol

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Dysfunctional breathing

Contacts and locations

Locations

  • Pneuma Care Ltd

    Ely, Cambridgeshire, CB7 4EX, United Kingdom

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