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ClinicalTrials.gov public records Last synced Sep 25, 2026, 1:48 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Kristalose Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Cardiovagal Baroreflex Deficits Impair Neurovascular Coupling and Cognition in POTS

NCT03261570
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome (POTS), POTS, Orthostatic Intolerance
Interventions
Pyridostigmine, Digoxin, Placebo
Drug
Lead sponsor
New York Medical College
Other
Eligibility
15 Years to 30 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Hawthorne, New York
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Alcohol, Gut Leakiness, & Liver Disease

NCT05428072
View directory record Official record
Conditions
Alcoholic Liver Disease
Interventions
Sugar test, Aspirin Challenge
Other · Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 2 Interventional Results available

Effect of Galantamine on Inflammation and Cognition

NCT03384784
View directory record Official record
Conditions
HIV Associated Cognitive Motor Complex
Interventions
Galantamine, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
30 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 25, 2026, 1:48 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 Apr 30, 2013 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 3 Interventional Results available

The Effect of Guanfacine on Delirium in Critically Ill Patients

NCT04578886
View directory record Official record
Conditions
Delirium
Interventions
Guanfacine, Placebo
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Not applicable Interventional

Effects of Constipation Treatment in Chronic Kidney Disease: A Pilot Feasibility Trial

NCT06123195
View directory record Official record
Conditions
Chronic Kidney Disease, Constipation
Interventions
Constipation treatment
Other
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 25, 2026, 1:48 AM 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 25, 2026, 1:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Assess the Effect of Increasing Intake Amounts of Two Novel Glycans on the Gut Microbiota of Healthy Subjects

NCT04619875
View directory record Official record
Conditions
Healthy
Interventions
KB5, SG1, Lactulose
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 5, 2020 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Not applicable Interventional Results available

Efficacy Study of Polyethylene Glycol 3350-electrolyte Solution (GoLYTELY®) Versus Lactulose in Patients With Hepatic Encephalopathy.

NCT01283152
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis, Portosystemic Encephalopathy, PSE
Interventions
Polyethylene glycol 3350-electrolyte solution (GoLYTELY®), Lactulose
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Metformin's Effect on Glucagon-induced Glucose Production and Protein Metabolism.

NCT01956929
View directory record Official record
Conditions
Insulin Resistance, Prediabetic State
Interventions
Metformin, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Sep 25, 2026, 1:48 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 14, 2023 · Synced Sep 25, 2026, 1:48 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 17, 2023 · Synced Sep 25, 2026, 1:48 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 May 31, 2018 · Synced Sep 25, 2026, 1:48 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 11, 2026 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 2 Interventional

Safety and Efficacy of AST-120 Compared to Lactulose in Patients With Hepatic Encephalopathy

NCT00558038
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
AST-120, lactulose
Drug
Lead sponsor
Ocera Therapeutics
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
17
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated May 29, 2014 · Synced Sep 25, 2026, 1:48 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 12, 2023 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 1 Interventional

OCR002-SP103 - Oral Immediate Release Study

NCT03846843
View directory record Official record
Conditions
Cirrhosis
Interventions
OCR-002 IR Oral Tablet, OCR-002 Oral Solution, OCR-002 IV Solution
Drug
Lead sponsor
Ocera Therapeutics, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Coronado, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2021 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 4 Interventional Results available

A Preference Study Comparing Kristalose® and Liquid Lactulose

NCT00712543
View directory record Official record
Conditions
Constipation
Interventions
lactulose (Kristalose®), liquid lactulose
Drug
Lead sponsor
Cumberland Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
3
States / cities
Brooklyn, New York • Raleigh, North Carolina • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 26, 2011 · Synced Sep 25, 2026, 1:48 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 29, 2016 · Synced Sep 25, 2026, 1:48 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 20, 2019 · Synced Sep 25, 2026, 1:48 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 14, 2026 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 1 Interventional

Safety Study of Intravenous 6β-Naltrexol (AIKO-150) in Opioid-Dependent Subjects

NCT00829777
View directory record Official record
Conditions
Opiate Addiction
Interventions
6β-Naltrexol escalating doses from 0.05-0.5 mg IV
Drug
Lead sponsor
California Pacific Medical Center Research Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 15, 2009 · Synced Sep 25, 2026, 1:48 AM EDT
Completed Phase 1 Interventional

Kristalose as Bowel Evacuant Prior to Colonoscopy

NCT01256541
View directory record Official record
Conditions
Bowel Evacuant Prior to Colonoscopy
Interventions
Kristalose
Drug
Lead sponsor
Benaroya Research Institute
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 5, 2011 · Synced Sep 25, 2026, 1:48 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 29, 2015 · Synced Sep 25, 2026, 1:48 AM EDT