New oxygen device may make endoscopy safer for the sickest patients
NCT ID NCT07252102
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a high-flow nasal cannula (HFNC) can prevent dangerous drops in oxygen levels during sedated gastrointestinal endoscopy in critically ill patients. Researchers will compare HFNC with standard nasal oxygen in 450 adults with serious health conditions. The goal is to see if HFNC reduces the chance of hypoxia and other breathing problems during the procedure.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- high-flow nasal cannula oxygen (device)
- What this could lead to
- If it works, this could provide a safer way to perform endoscopy in critically ill patients, reducing the risk of dangerously low oxygen levels.
- What could go wrong
- This is a relatively small, early-stage trial. The device may not reduce hypoxia significantly, and results may not apply to all critical patients. Risks include nasal discomfort or injury from the high-flow device.
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
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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
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About 450 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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. 18≤ age ≤80, gender is not limited; 2. Patients undergoing elective gastroenteroscopy or treatment; 3. ASA grade Ⅲ\~Ⅳ; 4. 18 kg/m2≤BMI≤28kg/m2; 5. The operation time of gastroenteroscopy is expected to be no more than 60min; 6. Clearly understand, voluntarily participate in the study, and have informed consent from myself or my family members. Exclusion Criteria: 1. Patients with nasal congestion, nasal bleeding, recent nasal trauma, recent nasal surgery, increased intracranial pressure and skull fracture, etc., who can not perform high-flow nasal catheter oxygen; 2. acute respiratory infections and asthma attacks; 3. Patients diagnosed with COPD; 4. Clear difficult airway; 5. Acute upper gastrointestinal bleeding with shock; 6. Gastrointestinal obstruction with gastric content retention; 7. Allergic to sedatives such as propofol; 8. Persons with no capacity for civil conduct such as cognitive dysfunction.
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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.
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The places running it
3 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Cancer Hospital Chinese Academy of Medical Sciences, Shenzhen Center
RECRUITINGShenzhen, Guangdong, 518116, China
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Shenzhen Hospital of Southern Medical University
RECRUITINGShenzhen, Guangdong, 518000, China
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The First Affiliated Hospital, Zhejiang University School of Medicine
RECRUITINGHangzhou, Zhejiang, 310000, China
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