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New tulip airway device tested for safer breathing support in surgery

NCT ID NCT07204223

Symptom relief Sponsor: Ayse Zeynep Turan Civraz 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Aug 07, 2026 · Updated 2 times

Summary

This study compares the Tulip airway, a newer device, with the standard Guedel airway in 30 adults who are expected to have trouble with mask ventilation after anesthesia. Participants have risk factors like older age, beard, missing teeth, or obesity. The goal is to see which device provides better breathing support, measured by the amount of air moved with each breath.

What this could mean

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

Active substance
Tulip airway device and Guedel airway device
What this could lead to
If the Tulip airway works better, it could make breathing support safer and easier for patients who are harder to ventilate during surgery.
What could go wrong
This is a small, early-stage trial with only 30 participants, so results may not apply to everyone. The devices are compared in a controlled setting, and real-world performance could differ.

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 30 people

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

Started

Oct 2025

Expected to finish

Aug 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 75 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Patients aged between 18 and 75 years * Patients scheduled for elective surgery under general anesthesia * Patients with at least two risk factors for difficult mask ventilation, including: * Age over 55 years * Presence of beard * Edentulism (missing teeth) * Obesity (Body Mass Index (BMI) ≥ 30 kg/m²) * History of obstructive sleep apnea syndrome (OSAS) or snoring * Neck circumference \> 43 cm * Retrognathia (small jaw structure) * Patients classified as American Society of Anesthesiologist (ASA) physical status 1, 2, or 3 * Patients who provide informed consent Exclusion Criteria: * Pregnant or breastfeeding women * Patients with a history of airway surgery (e.g., tracheostomy, maxillofacial surgery) * Patients with severe cardiopulmonary diseases (e.g., advanced Chronic obstructive Pulmonary Disease (COPD), pulmonary hypertension, severe heart failure) * Patients with craniofacial anomalies or significant anatomical airway deformities * Patients requiring emergency surgery * Patients with gastroesophageal reflux disease (GERD) and high risk of aspiration * Patients with active upper respiratory tract infection * Patients with a history of difficult intubation

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As listed by the trial registrant

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

Airway devices Difficult mask 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

  • Kocaeli City Hospital

    RECRUITING

    İzmit, Kocaeli, 41060, Turkey (Türkiye)

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