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ClinicalTrials.gov public records Last synced Oct 21, 2026, 12:46 PM EDT

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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Water Exchange method. Clear all
Completed Not applicable Interventional

Water-aided Colonoscopy vs Air Insufflation Colonoscopy in Colorectal Cancer Screening

NCT02041507
View directory record Official record
Conditions
Colorectal Cancer, Colorectal Adenomas, Colorectal Polyps, Pain
Interventions
Air insufflation method., Water Immersion method., Water Exchange method.
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
50 Years to 70 Years
Enrollment
1,224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in Diagnostic Patients

NCT01781650
View directory record Official record
Conditions
Pain, Colorectal Adenomas, Colorectal Cancer
Interventions
Air Insufflation method., Water Immersion method., Water Exchange method.
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
18 Years to 85 Years
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 15, 2014 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Prospective RCT Of Water Exchange (WE) vs. WE Plus Cap-Assisted Colonoscopy

NCT03160859
View directory record Official record
Conditions
Unsedated Colonoscopy, Water Exchange Colonoscopy, Cap, Colonoscopy Pain
Interventions
Control, Study method
Other · Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 80 Years
Enrollment
280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
3
States / cities
Palo Alto, California • Sacramento, California • Sepulveda, California
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

Impact of Carbon Dioxide Insufflation and Water Exchange on Post-Colonoscopy Outcomes

NCT02409979
View directory record Official record
Conditions
Abdominal Pain
Interventions
Carbon dioxide method, Water Exchange-CO2, Water Exchange-AI
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
18 Years to 80 Years
Enrollment
246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2015 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

Prospective Randomized Controlled Trial Comparing Water and Air Colonoscopy in a Community Based Setting

NCT01729416
View directory record Official record
Conditions
Tubular Adenoma, Colon Cancer, Hyperplastic Polyp
Interventions
Water Exchange Colonoscopy, Air Colonoscopy
Other
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Elk Grove, California
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Oct 21, 2026, 12:46 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Does the Cap Increase the Finding of Polyps When Water Exchange Colonoscopy is Used

NCT03566615
View directory record Official record
Conditions
Colonoscopy, Polyp of Colon
Interventions
CAP-straight, CAP-daisy, water
Device · Other
Lead sponsor
VA Greater Los Angeles Healthcare System
Federal
Eligibility
50 Years to 75 Years
Enrollment
1,630 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
2
States / cities
Mather, California • Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

Comparison of Methods to Distend the Colon During Insertion: CO2, Air Insufflation, Water-aided Colonoscopy

NCT01954862
View directory record Official record
Conditions
Pain, Colorectal Adenomas, Colorectal Cancer
Interventions
Air Insufflation method., CO2 insufflation, Water Immersion/CO2, Water Exchange/CO2, Water Immersion/AI, Water Exchange/AI
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
18 Years to 85 Years
Enrollment
624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2014 · Synced Oct 21, 2026, 12:46 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Adenoma Detection Rate in Water and Air Colonoscopy Using Computer-aided System

NCT05448300
View directory record Official record
Conditions
Colon Adenoma, Colonoscopy
Interventions
Colonoscopy with water exchange or air insufflation methods
Device
Lead sponsor
Dalin Tzu Chi General Hospital
Other
Eligibility
50 Years to 80 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 12, 2022 · Synced Oct 21, 2026, 12:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Comparing Clinical Performance of Novice Trainee Endoscopists Using Conventional Air Insufflation Versus Warm Water Infusion Colonoscopy

NCT01482546
View directory record Official record
Conditions
Colonoscopy Education
Interventions
Not listed
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Phase 2 Interventional Results available

Hemodynamics and Extravascular Lung Water in Acute Lung Injury

NCT00624650
View directory record Official record
Conditions
Acute Lung Injury
Interventions
Diuresis (furosemide) part I, Fluid Bolus (crystalloid or albumin), Vasopressors (Norepinephrine, Vasopressin, Phenylephrine, Epinephrine), Dobutamine, Concentrate all drips and nutrition, Diuresis (furosemide) part II, Dialysis
Drug · Other · Procedure
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
3
States / cities
Clackamas, Oregon • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 10, 2019 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Comparative Efficacy of Water & Indigo Carmine vs. Water or Air Method on Adenoma Detection Rate (ADR) - a Randomized Controlled Trial (RCT)

NCT01607255
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Indigo carmine, water (exchange) method, water (exchange) plus dye method, air method
Drug · Procedure
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 75 Years
Enrollment
480 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional Results available

Sous Vide Rewarming for Frostbitten Extremities

NCT04633174
View directory record Official record
Conditions
Frostbite, Frostbite of Hand, Frostbite of Foot
Interventions
Sous Vide Device (SVD)
Device
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional Results available

Multicenter Sous Vide Frostbite

NCT05280301
View directory record Official record
Conditions
Frostbite, Frostbite of Hand, Frostbite of Foot
Interventions
Sous Vide Device (SVD)
Device
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
Not listed
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

Unsedated Colonoscopy for Colorectal Cancer Screening and Surveillance

NCT01383252
View directory record Official record
Conditions
Colon Polyp
Interventions
Water infusion in lieu of air insufflation, Air method
Procedure
Lead sponsor
VA Northern California Health Care System
Federal
Eligibility
50 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Jun 17, 2013 · Synced Oct 21, 2026, 12:46 PM EDT
Completed Not applicable Interventional

A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in CRC Screening

NCT01780818
View directory record Official record
Conditions
Pain, Colorectal Adenomas, Colorectal Cancer
Interventions
Air Insufflation method., Water Immersion method., Water Exchange method.
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
50 Years to 70 Years
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 15, 2014 · Synced Oct 21, 2026, 12:46 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Investigating Near-Threshold Perception During Ultrasonic Deep Brain Stimulation

NCT07840521
View directory record Official record
Conditions
Consciousness, Level Altered
Interventions
Low-intensity focused ultrasound pulsation (LIFUP), Functional Magnetic Resonance Imaging (fMRI), Magnetic Resonance Spectroscopy, Multi-modal glymphatic function MRI
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 40 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 12:46 PM EDT