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Could a handheld breath test replace clunky lung machines for kids with asthma?

NCT ID NCT07833826

Diagnosis Sponsor: University of Nottingham Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Sep 22, 2026 · Last updated Sep 23, 2026 · Updated 1 time

Summary

Children with asthma need better ways to track their lung health, but current home devices are costly, bulky, or hard for young children to use. Researchers are testing the N-Tidal C, a small device that measures exhaled carbon dioxide during normal breathing. The study enrolls children aged 5 to 15 who have wheeze or asthma, or who are due for routine lung function tests, to see how many families take part and how well the device's readings compare with standard tests. The goal is to gather information needed to plan larger studies of the device in children.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
N-Tidal C, a handheld device that measures exhaled carbon dioxide (capnometry)
What this could lead to
If it works, children with asthma could one day monitor their lung function at home with a small device that needs only normal breathing, helping them spot flare-ups sooner.
What could go wrong
This is an early feasibility study, so researchers are mainly checking whether the approach is practical and how well the device's readings match standard lung tests. It may not prove accurate enough for routine use, and results in children may differ from adults.

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.

Participants

About 340 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2024

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Who is studied

Children with asthma wheeze either acutely unwell or attending for lung function testing.

Ages

5 to 15 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.

Workstream 1 inclusion criteria i) Aged 5 years or older, and less than 15 years plus 32 weeks of age ii) Participant has presented to hospital with acute wheeze, bronchospasm or asthma iii) Participant is not critically ill and is able to breathe into a mouthpiece for 90seconds. Workstream 2 inclusion criteria i) Participant 5 years or older, and less than 16 years of age. ii) Participant is due to have routine lung function testing. Exclusion criteria i) Life threatening respiratory difficulties (defined as cyanosis, oxygen saturations less than 92% despite oxygen supplementation, silent chest on auscultation, poor respiratory effort, fatigue or exhaustion, agitation or reduced level of consciousness) ii) Participation in another research project whose protocol prevents participation in this project.

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Conditions

The condition(s) this trial relates to.

asthma childhood onset asthma

As listed by the trial registrant

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

Asthma in children

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Nottingham University Hospitals NHS Trust

    RECRUITING

    Nottingham, Nottinghamshire, NG7 2UH, United Kingdom

  • Nottingham University Hospitals NHS Trust

    RECRUITING

    Nottingham, Nottinghamshire, NG7 2UH, United Kingdom

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