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ClinicalTrials.gov public records Last synced Oct 19, 2026, 9:54 AM EDT

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Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Lactulose Clear all
Completed Phase 2Phase 3 Interventional Results available

A Trial to Improve Quality of Life in People With Cirrhosis

NCT05061992
View directory record Official record
Conditions
Cirrhosis
Interventions
Lactulose
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 21, 2023 · Synced Oct 19, 2026, 9:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Biomarkers for Intestinal Permeability in Patients With Constipation

NCT02246647
View directory record Official record
Conditions
Intestinal Diseases, Irritable Bowel Syndrome, Constipation
Interventions
Permeability measurement, Esophagogastroduodenoscopy, Flexible sigmoidoscopy
Diagnostic Test · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Rifaximin Soluble Solid Dispersion (SSD) Tablets Plus Lactulose for the Treatment of Overt Hepatic Encephalopathy (OHE)

NCT03515044
View directory record Official record
Conditions
Overt Hepatic Encephalopathy
Interventions
40 mg Rifaximin SSD once daily, 40 mg Rifaximin SSD twice daily, 80 mg Rifaximin SSD once daily, 80 mg Rifaximin SSD twice daily, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
34
States / cities
Corona del Mar, California • Los Angeles, California • San Francisco, California + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2023 · Synced Oct 19, 2026, 9:54 AM EDT
Withdrawn Phase 4 Interventional

Rifaximin Versus Lactulose in Renal Failure

NCT00748904
View directory record Official record
Conditions
Liver Cirrhosis, Renal Failure
Interventions
Rifaximin, Lactulose
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2022 · Synced Oct 19, 2026, 9:54 AM EDT
Recruiting Phase 2 Interventional

Aquamin® for Prevention of Ulcerative Colitis J-Pouch-associate Intestinal Inflammation

NCT07501078
View directory record Official record
Conditions
Ulcerative Colitis, Ileal Pouch
Interventions
Aquamin, Placebo
Drug
Lead sponsor
Muhammad N Aslam, MD
Other
Eligibility
18 Years to 80 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Serum-Derived Bovine Immunoglobulin Protein Isolate in Subjects With Decompensated Cirrhosis With Ascites

NCT02608658
View directory record Official record
Conditions
Cirrhosis of the Liver, Ascites, Spontaneous Bacterial Peritonitis
Interventions
Medical food, EnteraGam (Serum-Derived Bovine Immunoglobulin)
Other
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 70 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 1, 2018 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Oral Administration of MB-102 Versus Dual Sugar Testing for Gut Permeability

NCT03962998
View directory record Official record
Conditions
Crohn Disease
Interventions
Lactulose/Rhamnose solution, MB-102
Drug
Lead sponsor
MediBeacon
Industry
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 10, 2022 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy and Safety of Bisacodyl and Lactulose as a Preparation for Colonoscopy

NCT02123017
View directory record Official record
Conditions
Colonoscopy Preparation
Interventions
90 grams of Crystalline Lactulose, 135 grams of Crystalline Lactulose, 180 grams of Crystalline Lactulose
Drug
Lead sponsor
Cumberland Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 24, 2016 · Synced Oct 19, 2026, 9:54 AM EDT
Terminated Phase 2 Interventional Results available

Study of Lactulose in Children With Chronic Liver Disease

NCT00811434
View directory record Official record
Conditions
Minimal Hepatic Encephalopathy
Interventions
Lactulose, placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
5 Years to 18 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 10, 2014 · Synced Oct 19, 2026, 9:54 AM EDT
Recruiting Not applicable Interventional

A Pilot Study Examining Low Sulfur Diet as Treatment for Persistent Symptoms in Quiescent Crohn's Disease

NCT05849012
View directory record Official record
Conditions
Crohn's Disease in Remission
Interventions
Low Sulfur Diet, Usual Diet
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 19, 2026, 9:54 AM EDT
Terminated Phase 4 Interventional

Quality of Life and Nutritional Improvements in Cirrhotic Patients

NCT01842113
View directory record Official record
Conditions
Liver Cirrhosis, Hepatic Encephalopathy, Portal Hypertension
Interventions
Rifaximin, Lactulose, Lactulose Placebo, Rifaximin Placebo
Drug
Lead sponsor
Tampa General Hospital
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 23, 2013 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Not applicable Interventional

Prevention of Hepatic Encephalopathy With Mobile Application Based Lactulose Titration

NCT05526404
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Dieta mobile application
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 18, 2023 · Synced Oct 19, 2026, 9:54 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Bacterial Overgrowth Associated With Chronic Multisymptom Illness Complex

NCT00956150
View directory record Official record
Conditions
Gulf War Syndrome
Interventions
Lactulose Breath Test, Rifaximin, Placebo
Procedure · Drug
Lead sponsor
Henry C. Lin, MD
Federal
Eligibility
21 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated May 1, 2013 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Phase 4 Interventional Results available

Yield of Diagnostic Tests and Effects of Crofelemer for Chronic Idiopathic Diarrhea In Non-HIV Patients

NCT03898856
View directory record Official record
Conditions
Chronic Diarrhea of Unknown Origin
Interventions
Crofelemer, Diagnostic tests for cause of chronic diarrhea
Drug · Diagnostic Test
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Oct 19, 2026, 9:54 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

LiveSMART Trial to Prevent Falls in Patients With Cirrhosis - Supplementary Study

NCT07140120
View directory record Official record
Conditions
Cirrhosis, Liver, Portal Hypertension
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
3
States / cities
Ann Arbor, Michigan • Philadelphia, Pennsylvania • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Phase 3 Interventional Results available

LiveSMART Trial to Prevent Falls in Patients With Cirrhosis

NCT05794555
View directory record Official record
Conditions
Cirrhosis, Liver, Portal Hypertension
Interventions
Enhanced Usual Care, Lactulose, Investigator recommended exercise, TeleTai-Chi (virtual)
Behavioral · Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Ann Arbor, Michigan • Philadelphia, Pennsylvania • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Not applicable Interventional

A Study of Controlled Lactulose Withdrawal

NCT00914056
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
lactulose
Drug
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years to 75 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 20, 2013 · Synced Oct 19, 2026, 9:54 AM EDT
Not listed Not applicable Interventional

Intestinal Inflammation and Carbohydrate Digestion in Autistic Children

NCT00227487
View directory record Official record
Conditions
Autism, Inflammation
Interventions
Stool collection, Administration of carbohydrate solution during clinically indicated endoscopy, Questionnaires
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Months to 17 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2017
U.S. locations
2
States / cities
Boston, Massachusetts • Newton, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 30, 2016 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Is Chronic Abdominal Pain in Pediatric Patients Due to Small Intestinal Bacterial Overgrowth?

NCT00619970
View directory record Official record
Conditions
Chronic Abdominal Pain, Small Intestinal Bacterial Overgrowth
Interventions
Lactulose Breath Test, xifaxan, placebo
Procedure · Drug
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
8 Years to 18 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 16, 2017 · Synced Oct 19, 2026, 9:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Gum Chewing on Appetite and Digestion

NCT01070212
View directory record Official record
Conditions
The Null Hypothesis is That Food Rheology Will Have no Effect on These Indices, The Alternate Hypothesis is That Increased Mechanical Stimulation Will Result in Stronger Satiation/Satiety and Reduced Energy Intake, It is Hypothesized That the Effects of Mastication Will be Less Evident in Obese Compared to Lean Individuals
Interventions
soft gum, firm gum, no gum
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 15, 2023 · Synced Oct 19, 2026, 9:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Longitudinal Monitoring of Stool Characteristics

NCT05604274
View directory record Official record
Conditions
Cirrhosis, Liver
Interventions
App to monitor stool consistency and symptoms
Other
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Oct 19, 2026, 9:54 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Transit Time and Bacterial Overgrowth Using SmartPill Capsule

NCT00577772
View directory record Official record
Conditions
Small Bowel Bacterial Overgrowth, Gastrointestinal Diseases, Stomach Diseases, Digestive System Diseases
Interventions
Xifaxan, SmartPill, Lactulose hydrogen breath test (H_2BT)
Drug · Device · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 5, 2012 · Synced Oct 19, 2026, 9:54 AM EDT
Withdrawn Phase 3 Interventional

A Randomized Comparison of Rifaximin Versus Lactulose in Hospitalized Cirrhotic Patients With Renal Failure

NCT02086825
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Rifaximin, Lactulose
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 2, 2016 · Synced Oct 19, 2026, 9:54 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Women's Mammography Study To Improve Comfort During Mammography

NCT01716052
View directory record Official record
Conditions
Pain
Interventions
placebo, Ibuprofen
Drug
Lead sponsor
Kenneth A. Kist,
Other
Eligibility
18 Years to 100 Years · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 30, 2015 · Synced Oct 19, 2026, 9:54 AM EDT