Can a smarter ventilation setting shield lungs during surgery in obese patients?

NCT ID NCT07774065

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This trial investigates whether a tailored ventilation strategy during laparoscopic or robotic-assisted surgery can reduce lung complications in obese patients (BMI 35 or higher). The approach uses a higher positive end-expiratory pressure (PEEP) to minimize strain on the lungs during anesthesia. Researchers will measure oxygen levels after surgery and check blood markers for lung injury. The goal is to see if this strategy improves immediate recovery and reduces postoperative pulmonary complications.

What this could mean

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

Active substance
A tailored ventilation strategy using a higher positive end-expiratory pressure (PEEP) to minimize lung strain during surgery
What this could lead to
If effective, this ventilation approach could reduce breathing complications and improve recovery for obese patients undergoing laparoscopic surgery.
What could go wrong
This is a very small early-stage trial with only 10 participants, so results may not apply broadly. The higher PEEP could also affect blood pressure or heart function during surgery.

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 10 people

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

Started

Jul 2026

Expected to finish

Jul 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.

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. Body Mass Index (BMI) ≥ 35 kg/m2; 3. Scheduled for laparoscopic surgery expected to exceed 2h (from incision to closure) under general anesthesia, as determined pre-operatively by the attending surgeon and surgical team based on typical scheduling estimates, prior experience, procedure type, planned surgical approach, and patient-specific factors. Exclusion Criteria: 1. Previous lung surgery; 2. Invasive mechanical ventilation for \>30 minutes within the last 30 days prior to surgery; 3. Receipt of immunosuppressive medication (chemotherapy or radiotherapy) up to two months prior to surgery; 4. Neurological procedures or cardiac surgery; 5. Need for one-lung ventilation or planned re-intubation following surgery; 6. Requirement for intraoperative prone or lateral decubitus positioning; 7. Enrollment in another interventional study or refusal to give written informed consent; 8. Pregnancy, determined by anamnesis and/or laboratory testing; 9. Persistent hemodynamic instability or intractable shock, considered hemodynamically unsuitable for the study by the patient's managing physician; 10. Severe chronic obstructive pulmonary disease (COPD, defined as non-invasive ventilation and/or oxygen therapy at home or repeated systemic corticosteroid therapy for acute exacerbations of COPD); 11. Severe cardiac disease (defined as New York Heart Association class III or IV, acute coronary syndrome or persistent ventricular tachyarrhythmia); 12. Acute respiratory distress syndrome (according to the Berlin definition 2) expected to require prolonged postoperative mechanical ventilation; 13. Severe pulmonary arterial hypertension (defined as systolic pulmonary artery pressure \> 40 mmHg) 14. Intracranial injury, intracranial tumor, or neuromuscular disease; 15. Known esophageal disease or anatomy that would preclude the safe placement of a standard orogastric tube

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for OBESE are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

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

  • University of Texas Medical Branch, Galveston

    RECRUITING

    Galveston, Texas, 77555, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.