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New oxygen technique may prevent dangerous drops during routine endoscopy

NCT ID NCT07487051

Knowledge-focused Sponsor: Fatih Sultan Mehmet Training and Research 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 222 adults having a sedated gastroscopy to see if a high-flow oxygen device called THRIVE prevents low oxygen levels better than a standard nasal cannula. The oxygen method was chosen by the doctor, not randomly assigned. The main goal was to see how many patients had oxygen levels below 93% for 20 seconds or more. Results could help make this common procedure safer.

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 THRIVE works better, it could reduce dangerous drops in oxygen during routine endoscopy, making the procedure safer for patients.
What could go wrong
This is a small, completed observational study, not a randomized trial. Results may not apply to all patients or settings, and THRIVE may not prevent all oxygen drops.

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

222 people

The number who actually took part.

Started

Jul 2025

Finished

Oct 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.

Who is studied

Adult patients aged 18 years and older with ASA physical status I-III and BMI \<35 kg/m², scheduled for elective diagnostic gastroscopy under propofol sedation at a single tertiary care center. Patients with severe cardiopulmonary disease, pregnancy, prior facial or oropharyngeal surgery, baseline hypoxemia, hemoglobinopathy, or significant anemia were excluded. Supplemental oxygen delivery method (THRIVE vs. standard nasal cannula) was determined by the anesthesia provider independently of the study team.

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: * Age ≥18 years * ASA physical status I-III * Body mass index (BMI) \<35 kg/m² * Scheduled for elective diagnostic gastroscopy under propofol sedation * Baseline SpO₂ \>93% on room air prior to the procedure * Hemoglobin level ≥10.0 g/dL prior to the procedure * Willing and able to provide written informed consent Exclusion Criteria: * Severe chronic pulmonary disease (e.g., COPD, interstitial lung disease) * Severe chronic cardiac disease * BMI ≥35 kg/m² * Pregnancy * History of facial or oropharyngeal surgery * Baseline SpO₂ ≤93% on room air prior to the procedure * Hemoglobinopathy * Hemoglobin level \<10.0 g/dL prior to the procedure

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Conditions

The condition(s) this trial relates to.

Hypoxia

As listed by the trial registrant

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

Gastrointestinal endoscopy Hypoxemia

Contacts and locations

Locations

  • Istanbul Provincial Health Directorate Fatih Sultan Mehmet Training and Research Hospital

    Istanbul, Turkey (Türkiye)

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