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Study tests safer intubation for obese patients: to ventilate or not?

NCT ID NCT05930678

Knowledge-focused Sponsor: Nantes University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether using a face mask to help obese patients breathe during a short pause in anesthesia makes intubation safer. Over 700 patients with a BMI of 35 or higher took part. The goal was to see which method leads to fewer complications like low oxygen levels or low blood pressure.

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 establish a safer standard practice for intubating obese patients, reducing complications like low oxygen or low blood pressure.
What could go wrong
This is a completed study, so results are available but may not apply to all settings. The findings are specific to obese patients and may not change practice if no clear benefit is found.

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

725 people

The number who actually took part.

Started

Sep 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.

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: * patient requiring general anesthesia with intubation for surgery or scheduled endoscopic procedures * age \> 18 years * with a BMI superior or equal to 35kg.m-² * patient having signed an informed consent Non-inclusion criteria: * ambient air saturation \<90% * urgent surgery \< 24 hours * cardio-thoracic surgery * mask ventilation not possible (e.g. ATCD, cervical irradiation, fixed mandible) * formal contraindication to mask ventilation (e.g. occlusive syndrome, non fasting patient, symptomatic gastroesophageal reflux untreated or persistent under treatment) * wish of the operator for high flow oxygen preoxygenation * wish of an intubation without curare by the operator * pregnant or breast-feeding women * protected adults (guardianship, curatorship or safeguard of justice) * participation in another randomized clinical research study concerning preoxygenation and relevant to the primary endpoint * absence of affiliation to the French social security system

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Conditions

The condition(s) this trial relates to.

morbid obesity

As listed by the trial registrant

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

Morbid obesity Ventilation therapy; complications

Contacts and locations

Locations

  • CH de Saint-Nazaire

    Saint-Nazaire, 44600, France

  • CH de Valenciennes

    Valenciennes, France

  • CHD Vendée

    La Roche-sur-Yon, 85925, France

  • CHRU Brest

    Brest, 29609, France

  • CHRU de Lille - Hôpital Claude Huriez

    Lille, 59037, France

  • CHU Angers

    Angers, 49933, France

  • CHU Nantes

    Nantes, Loire Atlantique, 44100, France

  • CHU Toulouse

    Toulouse, 31300, France

  • CHU de Dijon

    Dijon, 21000, France

  • CHU de Nantes - site Laennec

    Nantes, France

  • CHU de Rennes

    Rennes, 35033, France

  • Clinique Mutualiste de l'Estuaire

    Saint-Nazaire, 44600, France

  • HCL - Hôpital Edouard Herriot

    Lyon, France

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