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New imaging technique may reveal why prone positioning helps some ARDS patients

NCT ID NCT06181539

Knowledge-focused Sponsor: Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looked at 94 adults with acute respiratory distress syndrome (ARDS) who needed a breathing tube and were placed on their stomachs (prone position). Researchers used a non-invasive imaging tool called electrical impedance tomography (EIT) to measure how air and blood flow were distributed in the lungs before and after 16 hours of prone ventilation. The goal was to understand why some patients improve and others do not, and to find factors that predict a good response.

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 help doctors predict which ARDS patients will benefit most from prone ventilation, improving treatment decisions.
What could go wrong
This is a small, completed observational study, not a treatment trial. The findings may not change practice without larger confirmatory studies.

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

94 people

The number who actually took part.

Started

Dec 2023

Finished

Jul 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

Patients who met inclusion exclusion criteria will implement EIT monitoring at the time of before the prone position, prone position for 16 hours and prone position ending 8h.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * 1\. Age ≥18 years. 2. Patients diagnosed with ARDS according to the Berlin definition and need to endotracheal intubated and mechanical ventilated in prone position within 48 hours of endotracheal intubation 3. PaO2/FiO2 \< 150 mmHg with positive end-expiratory pressure (PEEP) ≥ 5 cmH2O according to the Berlin definition. Exclusion Criteria: * 1\. Contraindications of EIT such as chest wound dressing, installation of pacemaker, defibrillator, etc. 2\. Unstable vertebral fracture 3. Within 15 days after severe facial trauma or facial surgery 4 within 15 days after tracheal surgery or sternotomy 5. Hemodynamic instability or recent cardiac arrest 6. Increased intraocular pressure. 7. Unstable femoral or pelvic fractures and pelvic external fixation. 8 He had severe chest wall disease and unstable rib fractures. 9 Recent cardiothoracic surgery. 10. Pneumothorax 11. Chronic lung disease: severe obstructive pulmonary disease, severe asthma, interstitial lung disease. 12\. Maternal 13. Extracorporeal membrane oxygenation(ECMO) had been administered on admission to the ICU. 14\. Intracranial hypertension 15. Pulmonary embolism, acute or chronic right heart failure 16. Severe cardiac dysfunction (New York Heart Association class III or IV, acute coronary syndrome, or sustained ventricular tachyarrhythmia), cardiogenic shock; 17. No informed consent was obtained

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Conditions

The condition(s) this trial relates to.

acute respiratory distress syndrome adult acute respiratory distress syndrome

As listed by the trial registrant

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

Acute respiratory distress syndrome Electrical impedance tomography Prone position ventilation Ventilation perfusion mismatch

Contacts and locations

Locations

  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

    Wuhan, Hubei, 430000, China

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