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Can ultrasound guide safer Breathing-Tube removal?

NCT ID NCT07751237

Knowledge-focused Sponsor: Hospital de Clinicas de Porto Alegre 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 07, 2026 · Last updated Aug 07, 2026

Summary

This trial tests whether sharing diaphragm ultrasound results with doctors helps them decide when to remove breathing tubes in ICU patients who have failed their first attempt. Participants are randomly assigned to have their ultrasound results shared or kept hidden from the care team. The goal is to see if this extra information leads to more days without a ventilator and fewer failed extubations.

What this could mean

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

Active substance
Diaphragmatic ultrasound
What this could lead to
If effective, this approach could reduce time on mechanical ventilation and improve weaning success in ICU patients, potentially leading to better outcomes and shorter hospital stays.
What could go wrong
The trial is early and the technique's predictive value is not yet established. Ultrasound measurements can be operator-dependent, and results may not generalize to all ICU settings.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 220 people

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

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Sep 2029

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.

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: * Adults patients receiving invasive mechanical ventilation who are classified as having difficult weaning, defined as failure of the first spontaneous breathing trial. * Richmond Agitation-Sedation Scale (RASS) score between -2 and +1. * Clinical stability, defined as: * No vasopressor support or only low-dose, stable vasopressor therapy. * Absence of significant cardiac arrhythmias or ongoing myocardial ischemia. * Adequate oxygenation (SpO₂ \>90% or PaO₂ \>60 mmHg). * Respiratory rate \<35 breaths/min. Exclusion Criteria: * Inability to obtain informed consent. * Pre-existing neuromuscular disease. * Pregnancy. * Inability to perform the ultrasound examination because of chest drains, surgical wounds, or skin lesions at the assessment sites.

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Conditions

The condition(s) this trial relates to.

Critical Illness diaphragm disorder

As listed by the trial registrant

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

Diaphragm dysfunction Icu ill patients Weaning mechanical ventilation

How to take part

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

  1. The places running it

    1 site. 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

  • Hospital de Clínica de Porto Alegre

    RECRUITING

    Porto Alegre, Rio Grande do Sul, 90035-903, Brazil

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