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Painless ultrasound could replace invasive breathing tests

NCT ID NCT07371754

Knowledge-focused Sponsor: Groupe Hospitalier du Havre 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a special ultrasound technique called shear wave elastography can measure how hard someone is working to breathe. Currently, doctors must insert a balloon-tube into the esophagus to measure breathing effort, which is uncomfortable. Researchers will compare the ultrasound readings with the standard method in 20 people (some with COPD, some healthy) during controlled breathing exercises. If it works, this could offer a noninvasive way to monitor breathing in hospitals.

What this could mean

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

What this could lead to
If successful, this could lead to a simple, painless ultrasound test to measure breathing effort, replacing the current invasive method.
What could go wrong
This is a very small early study (20 people) testing a new technique. It may not work well enough to replace the standard method, and results may not apply to all patients.

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 20 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

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

Adults (≥18 years) will be enrolled in two cohorts: (1) healthy adult volunteers and (2) adult patients with chronic obstructive pulmonary disease (COPD), stage 3-4. A total of 20 participants will be recruited (10 COPD patients and 10 healthy volunteers). Each participant will complete a single study visit (\~45 minutes) involving standardized breathing/inspiratory loading while intercostal muscle ultrasound shear wave elastography is recorded, with concurrent physiological reference measurements to quantify respiratory effort.

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: Adult patient with chronic obstructive pulmonary disease (COPD), stage 3-4. Healthy adult volunteer. Exclusion Criteria: Refusal to participate or withdrawal of consent. Age \< 18 years. BMI \> 35 kg/m². Pregnancy or breastfeeding. Inability to understand instructions or cooperate (cognitive impairment, language barrier). Neurological condition affecting breathing (e.g., recent stroke, ALS, myopathy). Thoracic condition limiting access to the intercostal muscles (e.g., major chest wall deformity, surgical scar). Recent thoracic or abdominal surgery (\< 3 months). Known esophageal disease (stricture, achalasia, severe esophagitis, diverticulum, history of perforation). ENT or tracheal abnormality preventing probe insertion (e.g., tumor, malformation, tracheostomy). Swallowing disorders or risk of aspiration. Recent exacerbation (\< 6 weeks). Oxygen therapy \> 2 L/min during exertion. Hemodynamic instability. Not affiliated with a social security scheme. Legally protected persons (as defined by law).

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease COPD, severe early onset

As listed by the trial registrant

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

COPD Healthy adult

How to take part

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  1. 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 ↗

  2. A doctor treating you

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