The Effect of Cap-assisted Water Exchange Colonoscopy on Straight Passage of the Colonoscope Thro… (NCT06992856) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
The Effect of Cap-assisted Water Exchange Colonoscopy on Straight Passage of the Colonoscope Through the Sigmoid Colon, Without Loop Formation
China531 participantsStarted 2025-06-01
Plain-language summary
A prospective, single-center, single-blind, randomized controlled study to compare the proportion of straight passage through the sigmoid colon without loop formation between conventional colonoscope passage, left colon water exchange colonoscope passage, and cap-assisted left colon water exchange colonoscope passage through the sigmoid colon
Who can participate
Age range
18 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* aged 18-80 years
* sedation colonoscopy
Exclusion Criteria:
* History of colorectal surgery
* Clinical suspicion of, or pathologically confirmed, colorectal cancer
* Presence of any "alarm" symptom or sign-hematochezia, melena, unexplained anemia or weight loss, palpable abdominal mass, or a positive digital rectal examination
* Pregnancy or lactation
* Known or suspected gastrointestinal obstruction
* Diagnosed inflammatory bowel disease
* Use of antiplatelet or anticoagulant therapy (e.g., aspirin, warfarin) within 7 days before colonoscopy or any documented coagulation disorder
* Current enrolment in another clinical study or participation in any clinical trial within the previous 60 days
* Requirement for emergency colonoscopy
* Any other condition that, in the investigators' judgment, renders the patient unsuitable for inclusion in the study
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
The proportion of straight passage through the sigmoid colon without loop formation