A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in CRC Screening
Public ClinicalTrials.gov record NCT01780818. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized, Controlled Trial Comparing Air Insufflation, Water Immersion and Water Exchange During on Demand Sedation Colonoscopy in CRC Screening Patients
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Water-aided method for colonoscopy can be broadly subdivided into two major categories. Water Immersion (WI), characterized by suction removal of the infused water predominantly during the withdrawal phase of colonoscopy, and Water Exchange (WE), characterized by suction removal of infused water predominantly during the insertion phase of colonoscopy. Several studies showed that WE significantly reduces pain compared to WI and colonoscopy with traditional air insufflation (AI), increases the number of unsedated procedures and adenoma detection rate (ADR), in particular proximal ADR. This randomized controlled trial will be a direct comparison of Air Insufflation, Water Immersion and Water Exchange to test the hypothesis that WAC (particularly WE) would significantly decrease pain score during colonoscopy in average-risk screening patients. Several other secondary outcomes will also be analyzed.
Study identification
- NCT ID
- NCT01780818
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 288 participants
Conditions and interventions
Conditions
Interventions
- Air Insufflation method. Other
- Water Immersion method. Other
- Water Exchange method. Other
Other
Eligibility (public fields only)
- Age range
- 50 Years to 70 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2013
- Primary completion
- Oct 31, 2013
- Completion
- Oct 31, 2013
- Last update posted
- Jan 14, 2014
2013
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Sepulveda Ambulatory Care Center, VA Greater Los Angeles Healthcare System | Los Angeles | California | 91343 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01780818, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 14, 2014 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01780818 live on ClinicalTrials.gov.