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Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: No bowel prep Clear all
Active, not recruiting Not applicable Interventional

Impact of Chewing Gum on Bowel Preparation in Patients Undergoing Colonoscopy

NCT07320989
View directory record Official record
Conditions
Colon Cancer Screening
Interventions
Chewing Sugar-Free Gum During Bowel Preparation, Standard Bowel Prep (2L PEG-ELP), Standard Bowel Prep
Behavioral · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
45 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Withdrawn Not applicable Interventional

Bowel Preparation in Minimally Invasive Gynecologic Surgery

NCT06820359
View directory record Official record
Conditions
Gynecologic Disease
Interventions
Bowel Preparation, No bowel preparation
Other
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Detroit, Michigan • Warren, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Phase 4 Interventional

Pre-operative Bowel Preparation Prior to Minimally Invasive Sacral Colpopexy

NCT01805310
View directory record Official record
Conditions
Pelvic Organ Prolapse, Prolapse
Interventions
Bowel preparation, No bowel preparation
Other
Lead sponsor
Halina M Zyczynski, MD
Other
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2018 · Synced Sep 3, 2026, 9:28 AM EDT
Withdrawn Not applicable Interventional

Pre-op Bowel Prep Before Abdominal Surgery

NCT01512394
View directory record Official record
Conditions
Pre-operative Bowel Prep
Interventions
standard bowel prep, no bowel prep
Procedure
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
3 Months to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2016 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional

Bowel Preparation and Pelvic Organ Prolapse Surgery

NCT00937430
View directory record Official record
Conditions
Pelvic Organ Prolapse
Interventions
Bowel preparation (Fleets enema)
Other
Lead sponsor
TriHealth Inc.
Other
Eligibility
21 Years to 90 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 18, 2014 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Gastrointestinal Procedure Appointments

NCT03879616
View directory record Official record
Conditions
Gastrointestinal Disease
Interventions
An Enhanced Reminder
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
21 Years to 120 Years
Enrollment
15,974 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 20, 2022 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Phase 1 Interventional

Assessment of Combined Bowel Preparation for Capsule Endoscopy Study

NCT01243736
View directory record Official record
Conditions
Gastrointestinal Hemorrhage
Interventions
Combination Prep
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 19, 2016 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional

Improving Tolerability of Bowel Preparation Laxative for Colonoscopy

NCT02062112
View directory record Official record
Conditions
Colonoscopy, Bowel Preparation
Interventions
Pattern of flavoring of bowel laxative
Other
Lead sponsor
Howard University
Other
Eligibility
18 Years to 100 Years
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 13, 2018 · Synced Sep 3, 2026, 9:28 AM EDT
Not listed Phase 1 Interventional

The Surgical Benefit and Pt.Tolerability Between Two Different Bowel Cleansing Regimens Performed Prior to Pelvic Reconstructive Surgery. Does One Bowel Cleansing Regimen Improve the Surgeons Visual Field Significantly Better Than the Other.

NCT01522261
View directory record Official record
Conditions
Pelvic Organ Prolapse
Interventions
Mechanical Bowel Prep, No Mechanical Bowel Prep
Other
Lead sponsor
Boston Urogynecology Associates
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 19, 2015 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional

Minimization of Surgical Site Infections for Pts Undergoing Colorectal Surgery

NCT00953784
View directory record Official record
Conditions
Surgical Wound Infections, Colorectal Surgery
Interventions
standard operating management
Procedure
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2010 · Synced Sep 3, 2026, 9:28 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Alcohol Misuse, Gut Microbial Dysbiosis and PrEP Care Continuum: Application and Efficacy of SBIRT Intervention

NCT06005298
View directory record Official record
Conditions
Alcohol Use Disorder, Risk Behavior, Health, Dysbiosis, HIV Infections
Interventions
Screening, Brief Intervention, Referral to Treatment (SBIRT)
Behavioral
Lead sponsor
Shirish S Barve
Other
Eligibility
18 Years to 85 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 3, 2026, 9:28 AM EDT
Active, not recruiting No phase listed Observational

Metagenomic Evaluation of the Gut Microbiome in Patients With Lynch Syndrome and Other Hereditary Colonic Polyposis Syndromes

NCT02371135
View directory record Official record
Conditions
Lynch Syndrome, Hereditary Colonic Polyposis Syndromes
Interventions
colonic biopsies, questionnaires
Genetic
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Recruiting Phase 1Phase 2 Interventional

Study Assessing CLENPIQ as Bowel Preparation for Pediatric Colonoscopy

NCT04113382
View directory record Official record
Conditions
Bowel Preparation
Interventions
CLENPIQ, MIRALAX, SENNA
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
12 Months to 8 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
5
States / cities
Mobile, Alabama • San Diego, California • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional

Mechanical Bowel Preparation Before Laparoscopic Hysterectomy and Laparoscopic Sacrocolpopexy: a Randomized Controlled Trial

NCT01576965
View directory record Official record
Conditions
Laparoscopic Hysterectomy and/or Laparoscopic Sacrocolpopexy
Interventions
Fleet Enema (sodium biphosphate and sodium phosphate)
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Sep 3, 2026, 9:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome-Mediated Gut Dysfunction in Non-Alcoholic Fatty Liver Disease

NCT05209100
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease
Interventions
Sigmoidoscopy
Procedure
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
35 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Oral Antibiotic Bowel Preparation in Gynecologic Oncology Surgery

NCT05210556
View directory record Official record
Conditions
Surgical Site Infection, Surgical Complication, Gynecologic Cancer
Interventions
Diagnosed with Surgical Site Infection
Other
Lead sponsor
WellSpan Health
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
778 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Phase 3 Interventional Results available

Investigation of PicoPrep Versus HalfLytely for Bowel Preparation for Colonoscopy - Split Dose PicoPrep

NCT01073930
View directory record Official record
Conditions
Bowel Preparation
Interventions
PicoPrep, HalfLytely, bisacodyl
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
608 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
9
States / cities
Huntsville, Alabama • Sherwood, Arkansas • Bristol, Connecticut + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2013 · Synced Sep 3, 2026, 9:28 AM EDT
Terminated Phase 4 Interventional Results available

Comparison of Clenpiq vs Golytely Bowel Preparation

NCT03198221
View directory record Official record
Conditions
Bowel Preparation Solutions
Interventions
Golytely, Clenpiq
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 3, 2021 · Synced Sep 3, 2026, 9:28 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A Validated Educational Video Intervention Improves the Quality of Bowel Preparation for Colonoscopy

NCT02013505
View directory record Official record
Conditions
Bowel Dysfunction
Interventions
Educational video
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
298 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Sep 3, 2026, 9:28 AM EDT
Not listed Not applicable Interventional

Early Routine Bowel Preparation for Suspected Acute Diverticular Bleeding

NCT05170945
View directory record Official record
Conditions
Diverticular Bleeding
Interventions
Early bowel preparation for colonoscopy
Other
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
415 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2023 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional

Postoperative Pain Management Following Robotic Assisted Sacrocolpopexy

NCT06309693
View directory record Official record
Conditions
Pelvic Organ Prolapse, Post Operative Pain
Interventions
Quadratus Lumborum (QL) Block, Enhanced Recovery After Surgical (ERAS) Protocol
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Patient Experience and Bowel Preparation for Transvaginal Surgical Management of Vaginal Prolapse

NCT01431040
View directory record Official record
Conditions
Value of the Bowel Preparation and Diet Change Versus no Intervention, Preoperative Bowel Regimen
Interventions
No bowel prep, Clear liquid diet and 2 Fleet's enemas
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 15, 2014 · Synced Sep 3, 2026, 9:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Text Messaging to Improve Adherence To Repeat Colonoscopy In a Veterans Affairs (VA) Hospital

NCT06185374
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Text Message Instructions/Motivation
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
45 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Sep 3, 2026, 9:28 AM EDT