Could water replace gas in colonoscopies for better polyp detection?
NCT ID NCT06333392
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares a new technique called total underwater colonoscopy (using water instead of gas) to the standard method in over 1,000 people undergoing screening after a positive stool test. The goal is to see if water helps doctors find more flat, hard-to-spot polyps that can lead to cancer, while also reducing pain and the need for repeat procedures. If successful, this simple change could make screening more effective and comfortable, especially for women.
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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.
Contacts and locations
Locations
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Akershus University Hospital Health Trust
RECRUITINGLørenskog, 1478, Norway
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Sahlgrenska University Hospital, Gothenburg, Region Västra Götaland, Sweden, Department of Medicine, Geriatrics and Emergency Care Mölndal
NOT_YET_RECRUITINGGothenburg, Sweden
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Ullevål University Hospital Health Trust
RECRUITINGOslo, 0424, Norway
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Vestre Viken Health Trust, Bærum Hospital
RECRUITINGDrammen, 3004, Norway
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Østfold Hospital Health Trust
RECRUITINGGrålum, 1714, Norway
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