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Could your doctor's office give the same breath test results as a hospital?

NCT ID NCT06611293

Knowledge-focused Sponsor: Imperial College London 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This study investigates whether the location where a breath test is performed—a primary care clinic versus a hospital—changes the results. Healthy adults will provide breath samples in both settings on different days. The goal is to see if breath tests developed in hospitals can be reliably used in everyday clinics.

What this could mean

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

Active substance
breath test
What this could lead to
If the environment does not affect results, breath tests developed in hospitals could be reliably used in doctor's offices, making diagnosis easier and more accessible.
What could go wrong
This is a small, early-stage study focused on healthy volunteers. Differences in air quality or equipment between settings may still cause variability that limits real-world use.

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

59 people

The number who actually took part.

Started

Feb 2025

Finished

Dec 2025

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

Volunteers will be recruited to provide breath samples in both Primary and Secondary Care environments.

Ages

18 years and older

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: Participants will be: * Aged ≥ 18 years old * Willing and able to provide informed consent to take part in study. Exclusion Criteria: * Pregnant women will be excluded from this study. With the exception of pregnant women, there are no additional strict exclusion criteria as individuals will act as their own control.

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As listed by the trial registrant

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

Breath test

Contacts and locations

Locations

  • Imperial College London

    London, W12 0NN, United Kingdom

  • Imperial College London

    London, United Kingdom