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Showing 1–24 of 34 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: No bowel preparation Clear all
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 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM 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
4
States / cities
Mobile, Alabama • San Diego, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 10, 2026, 3:13 PM EDT
Recruiting Not applicable Interventional

KiteLock 4% EDTA Lock Solution for the Prevention of Occlusions in Children With Intestinal Failure

NCT05879835
View directory record Official record
Conditions
Pediatric Intestinal Failure
Interventions
KiteLock 4% Sterile Catheter Lock Solution, Heparin Lock Solution
Device
Lead sponsor
SterileCare Inc.
Industry
Eligibility
4 Weeks to 18 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
8
States / cities
Boston, Massachusetts • Omaha, Nebraska • New York, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 10, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders

NCT03266068
View directory record Official record
Conditions
Campylobacter Infections, Irritable Bowel Syndrome
Interventions
DNA Analysis of Blood Sample, Flexible sigmoidoscopy with colonic biopsies, Small bowel and colonic gastrointestinal permeability, Stool sample analysis
Genetic · Procedure · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 19, 2022 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fermented Vegetables and Gut Microbiome Pilot Study

NCT06883994
View directory record Official record
Conditions
Fermented Vegetable Intake, Fermented Vegetable Acceptability, Gut Health, Gut Microbiome, Gastrointestinal Immune Function, Microbiome
Interventions
Fermented vegetable intervention
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Not yet recruiting Phase 2 Interventional

Herbal Supplement (Biocidin REMOVE) for Bacterial Overgrowth in Irritable Bowel Syndrome

NCT07768267
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS), Small Intestinal Bacterial Overgrowth Syndrome (SIBO)
Interventions
Biocidin REMOVE, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Withdrawn Phase 1 Interventional

Fecal Microbiota Transplantation for the Treatment of Severe Acute Gut Graft-Versus-Host Disease

NCT04280471
View directory record Official record
Conditions
Acute Graft Versus Host Disease, Gastrointestinal Tract Acute Graft Versus Host Disease, Severe Gastrointestinal Tract Acute Graft Versus Host Disease, Steroid Resistant Gastrointestinal Tract Acute Graft Versus Host Disease
Interventions
Fecal Microbiota Transplantation Capsule
Drug
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Recruiting Phase 1 Interventional

Intestinal Microbiota Transplantation in Patients With Chronic Heart Failure

NCT07490054
View directory record Official record
Conditions
Chronic Heart Failure
Interventions
MTP-101-C encapsulated Microbiota, Vancomycin, Neomycin
Biological · Drug
Lead sponsor
Melana Yuzefpolskaya, MD
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 10, 2026, 3:13 PM EDT
Not yet recruiting Not applicable Interventional

Tailored Anti-Inflammatory American Diet for Patients With Crohn's Disease

NCT07671872
View directory record Official record
Conditions
Crohn's Disease, Active, Crohn's Disease (CD), Diet Interventions
Interventions
Catered Anti-Inflammatory Diet, Diet Guidance for Usual Diet
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
16 Years to 75 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

What's Hopping? Cricket Protein and Human Gut Microbiota

NCT03383341
View directory record Official record
Conditions
Healthy
Interventions
Cricket Protein Powder, Placebo control
Dietary Supplement · Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
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 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Influence of the Gut Microbiome on Blueberry Polyphenol Metabolites

NCT07607158
View directory record Official record
Conditions
Microbiome Analysis, Metabolomics
Interventions
Freeze-dried blueberry powder beverage
Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 10, 2026, 3:13 PM 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 10, 2026, 3:13 PM EDT