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Three-Minute muscle relaxant timing may improve breathing tube placement in obese women

NCT ID NCT04808440

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study looked at whether waiting exactly three minutes after giving the muscle relaxant atracurium leads to better conditions for placing a breathing tube in obese women having gynecological surgery. One hundred adult female patients took part. Researchers rated intubation based on how easy the laryngoscopy was, vocal cord position, and coughing or movement during tube insertion.

What this could mean

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

Active substance
atracurium (a muscle relaxant)
What this could lead to
If successful, this could help anesthesiologists time muscle relaxants better for safer intubation in obese women.
What could go wrong
This is a small, completed study with only 100 participants, so results may not apply to all patients or settings. It does not test long-term outcomes.

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

100 people

The number who actually took part.

Started

Mar 2021

Finished

Sep 2021

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, no morbid obesity female patients, without risk factors for difficult tracheal intubation (ref IOT difficile) scheduled for gynaecologic surgery were prospectively included in this observational and monocentric study.

Ages

18 years and older

Sex

Female participants only

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: * Adult female * Patient to undergo general anesthesia with intubation for scheduled gynecological surgery * Patient informed about the study and not opposed to it Exclusion Criteria: * Patients with severe and morbid obesity (BMI\>35kg/m2) * Pregnancy * Patients with difficult intubation * Allergy to atracurium and to any other drug used. * Patient under tutorship / curatorship * Not affiliated with social insurance * Patient with AME

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Conditions

The condition(s) this trial relates to.

obesity disorder

As listed by the trial registrant

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

Obesity female patients require general anaesthesia with intubation and atracurium curarization

Contacts and locations

Locations

  • Service Anesthésie Réanimation Chirurgicale Hôpital Cochin

    Paris, 75014, France