Smarter scheduling may cut colonoscopy pain for High-Risk patients
NCT ID NCT07713953
First seen Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time
Summary
This trial tests whether a simple change in scheduling can reduce pain during unsedated colonoscopy. High-risk patients (based on factors like low weight, female sex, or prior surgery) are randomly assigned to either an expert endoscopist with over 5,000 procedures or a routine endoscopist. The goal is to see if expert care lowers the chance of moderate-to-severe pain, potentially making the procedure more tolerable for those who need it most.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Risk Score-Based Endoscopist Assignment
- What this could lead to
- If effective, this strategy could make unsedated colonoscopy less painful for high-risk patients, improving their experience and willingness to undergo future screenings.
- What could go wrong
- This is a small, early-stage trial with only 106 participants, so results may not apply broadly. The intervention depends on endoscopist expertise, which varies across hospitals.
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 106 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Aug 2027
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 75 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * Age 18-75 years. * Outpatient or inpatient undergoing colonoscopy for medical screening, polyp surveillance, or polypectomy. * Pre-procedural risk score \>5 (based on the following scoring system: BMI \<19 \[5 points\], female sex \[1 point\], history of abdominal or pelvic surgery \[2 points\], constipation \[3 points\]). Exclusion Criteria: * Patients who have received sedation or analgesia prior to colonoscopy. * Patients unwilling to cooperate or unable to provide informed consent. * Incomplete intestinal obstruction. * Inflammatory bowel disease, multiple polyposis syndromes, or severe chronic cardiac or pulmonary disease. * Patients receiving anticoagulant therapy.
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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
1 site. 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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the First Affiliated Hospital of Ningbo University
Ningbo, Zhejiang, 315000, China
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