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Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Gastrointestinal Transit Time Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Pea Hull Fibre Supplementation

NCT02778230
View directory record Official record
Conditions
Healthy
Interventions
Pea Fiber, Control
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
60 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced Jul 23, 2026, 8:16 AM EDT
Not listed Not applicable Interventional

Comparison of the Atmo Motility Gas Capsule System to the Reference Standard

NCT05718505
View directory record Official record
Conditions
Gastroparesis, Slow Transit Constipation, IBS
Interventions
Atmo Motility Gas Capsule System, SmartPill Monitoring System
Device
Lead sponsor
Atmo Biosciences Pty Ltd
Industry
Eligibility
22 Years to 80 Years
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 9, 2024 · Synced Jul 23, 2026, 8:16 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Food DNA Digestion

NCT06687226
View directory record Official record
Conditions
Digestion Rate
Interventions
Reconstitutable food powder
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Bacillus Subtilis R0179 in Healthy Young Adults

NCT01802151
View directory record Official record
Conditions
Healthy
Interventions
B. subtilis R0179, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 16, 2015 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ultra-Processed Foods, Palatability, Appetite, and Gastrointestinal Transit

NCT07600281
View directory record Official record
Conditions
Appetite, Gastrointestinal Transit, Food Processing, Food Palatability, Eating Behavior
Interventions
Palatable Ultra-Processed Food Meal, Unpalatable Ultra-Processed Food Meal, Palatable Non-Ultra-Processed Food Meal, Unpalatable Non-Ultra-Processed Food Meal
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 23, 2026, 8:16 AM EDT
Completed No phase listed Observational

Clinical Evaluation Gastrointestinal Motility With PillCam

NCT01158989
View directory record Official record
Conditions
Gastrointestinal Motility
Interventions
PillCam
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 12, 2017 · Synced Jul 23, 2026, 8:16 AM EDT
Terminated No phase listed Observational

Small Bowel Transit Time in Clostridium Difficile Colitis

NCT01309750
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
Small Bowel Transit Study
Radiation
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 24, 2017 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Phase 3 Interventional Results available

B. Lactis HN019 for Functional Constipation

NCT01463293
View directory record Official record
Conditions
Constipation
Interventions
B. lactis HN019, Placebo
Dietary Supplement
Lead sponsor
Fonterra Research Centre
Industry
Eligibility
18 Years to 70 Years
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
12
States / cities
Glendale, Arizona • Encinitas, California • Garden Grove, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2014 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

NECTAR Study: Nectar (Honey) Effects on Comfort, Thoughts, and Regularity

NCT04187950
View directory record Official record
Conditions
Gastrointestinal Dysfunction, Physiological Stress, Cognition - Other
Interventions
Yogurt with B. lactis and added honey, Yogurt with heat-inactivated B. lactis and added cane sugar
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
22 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 20, 2023 · Synced Jul 23, 2026, 8:16 AM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Multistrain Probiotic for Functional Constipation

NCT01618617
View directory record Official record
Conditions
Functional Constipation
Interventions
High dose Multistrain probiotic, 100 billion cfu/day, Low dose Multistrain probiotic, 15 billion cfu/day
Dietary Supplement
Lead sponsor
Renew Life Formulas Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 29, 2012 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional

Efficacy of Pea Hull Fiber in Chronic Disease

NCT03354364
View directory record Official record
Conditions
Kidney Disease, Chronic
Interventions
Pea hull fiber, Control
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Jul 23, 2026, 8:16 AM EDT
Completed No phase listed Observational

Evaluation of Gastrointestinal Motility With SmartPill

NCT01159002
View directory record Official record
Conditions
Gastrointestinal Motility
Interventions
SmartPill
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Potato Fiber and Gastrointestinal Function: Phase 3

NCT01964599
View directory record Official record
Conditions
Gastrointestinal Symptoms, Gastrointestinal Transit Time, Stool Frequency
Interventions
PF-RS, PF-RO1, PF-RO2, Control
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 25, 2017 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Phase 4 Interventional Results available

A Study of Gastrointestinal Emptying Time in Adult Participants With Migraine Before and After Start of a mAb CGRP Antagonist

NCT04294147
View directory record Official record
Conditions
Migraine
Interventions
Galcanezumab, Erenumab
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Los Angeles, California • Newport Beach, California • Waterbury, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Jul 23, 2026, 8:16 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 4, 2012 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Yogurt on Gastrointestinal Health, Regularity, and Thoughts

NCT04901390
View directory record Official record
Conditions
Gastrointestinal Dysfunction, Physiological Stress, Cognition - Other
Interventions
Yogurt with B. lactis and added cane sugar
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
22 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 20, 2023 · Synced Jul 23, 2026, 8:16 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Lubiprostone Effect on Gastrointestinal Tract Transit Times Measured by Smartpill in Patients With Chronic Constipation

NCT01469819
View directory record Official record
Conditions
Chronic Idiopathic Constipation
Interventions
Lubiprostone
Drug
Lead sponsor
Texas Tech University Health Sciences Center, El Paso
Other
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Jul 23, 2026, 8:16 AM EDT