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Warm or cold? study tests best water for colonoscopy cleanout
NCT ID NCT07295405
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This completed study looked at 260 adults having a colonoscopy to see if using warm or cold water during bowel prep makes a difference in how clean the colon gets. Participants were split into two groups based on water temperature, and cleanliness was scored using a standard scale. The goal is to find a simple way to improve prep quality without extra medication.
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 it works, this could lead to simple, cost-free advice on using warm or cold water for better colonoscopy prep.
- What could go wrong
- This is an observational study, not a controlled trial, so results may be influenced by other factors. The findings may not apply to everyone.
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
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260 people
The number who actually took part.
- Started
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Feb 2025
- Finished
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Aug 2025
- Lead sponsor
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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.
Who is studied
patients admitted to the general surgery endoscopy clinic of a tertiary-care hospital for colonoscopy
- Ages
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18 to 90 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: -Patients aged ≥ 18 years undergoing elective colonoscopy -Ability to provide informed consent -Planned bowel preparation using water-based regimens -No contraindication to warm or cold water intake Exclusion Criteria: - Emergency colonoscopy -History of inflammatory bowel disease -Prior colorectal surgery -Severe heart failure, renal failure, or electrolyte imbalance -Pregnancy -Inability to complete bowel preparation protocol -Use of additional laxatives outside the study protocol
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Bakırköy Dr. Sadi Konuk Training and Research Hospital
Istanbul, Istanbul, 34147, Turkey (Türkiye)
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