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ClinicalTrials.gov public records Last synced Jul 22, 2026, 10:42 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Abdominal Distention Clear all
Completed Phase 2 Interventional Results available

Effect of TU-100 in Patients Undergoing Laparoscopic Colectomy

NCT02232893
View directory record Official record
Conditions
Postoperative Ileus
Interventions
Daikenchuto (TU-100), Placebo
Drug
Lead sponsor
Tsumura USA
Industry
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
13
States / cities
Los Angeles, California • Aurora, Colorado • Weston, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2020 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Dietary Supplement in Subjects With Acid Reflux and/or Abdominal Bloating/Distention and GI Symptoms

NCT06808867
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with Active Ingredient Blend
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
18 Years to 85 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Efficacy of Linaclotide in Patients With Chronic Constipation and Prominent Abdominal Bloating

NCT01642914
View directory record Official record
Conditions
Chronic Constipation, Constipation
Interventions
Linaclotide 290 micrograms, Linaclotide 145 micrograms, Matching placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
487 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
146
States / cities
Chandler, Arizona • Glendale, Arizona • Goodyear, Arizona + 125 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2016 · Synced Jul 22, 2026, 10:42 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Capsule Microbiota Sampling in IBS/Functional Gastrointestinal Disease

NCT06215222
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome, Healthy, Functional Bloating, Functional Gastrointestinal Disorders
Interventions
Microbiota Sampling
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Jan 21, 2024 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Novel Probiotic on Gastrointestinal Health in Generally Healthy Adults

NCT05595980
View directory record Official record
Conditions
Gastrointestinal Health, Immune Health, Digestive Health
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
BIO-CAT Microbials, LLC
Industry
Eligibility
30 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 5, 2023 · Synced Jul 22, 2026, 10:42 AM EDT
Active, not recruiting No phase listed Observational

Cardiac Vagal Effects of GES in Patients With Gastroparesis and Vagal Nerve Action Potentials in Vagus Nerve

NCT02159586
View directory record Official record
Conditions
Gastroparesis
Interventions
gastric electrical stimulator
Device
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 90 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 3 Interventional

Efficacy of Pancrelipase on Postprandial Belching and Bloating.

NCT00266721
View directory record Official record
Conditions
Postprandial Bloating, Postprandial Belching, Postprandial Eructation
Interventions
Pancrelipase (Creon) 2 tablets with each meal
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 18, 2005 · Synced Jul 22, 2026, 10:42 AM EDT
Enrolling by invitation No phase listed Observational

Indiana University Gastric Electrical Stimulation Registry

NCT05047289
View directory record Official record
Conditions
Gastroparesis
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 80 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 2 Interventional

A Study to Evaluate the Efficacy and Safety of CIN-102 (Deudomperidone) in Adult Subjects With Idiopathic Gastroparesis.

NCT06899217
View directory record Official record
Conditions
Idiopathic Gastroparesis
Interventions
CIN-102 Dose 15mg, Placebo, CIN-102 Dose 10mg
Drug
Lead sponsor
CinDome Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
85
States / cities
Birmingham, Alabama • Foley, Alabama • Saraland, Alabama + 78 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Results available

Rifaximin 3 Times/Day (TID) for Non-Constipation Irritable Bowel Syndrome (IBS)

NCT00724126
View directory record Official record
Conditions
Non-Constipation Irritable Bowel Syndrome
Interventions
Rifaximin, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
637 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
88
States / cities
Anniston, Alabama • Birmingham, Alabama • Huntsville, Alabama + 83 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2019 · Synced Jul 22, 2026, 10:42 AM EDT
Completed No phase listed Observational

Helicobacter Pylori Sample Collection Protocol Pre Therapy Subjects

NCT03060746
View directory record Official record
Conditions
Helicobacter Pylori Infection, Gastric Ulcer, Nausea, Abdominal Pain, Weight Loss, Stomach Ulcer, Loss of Appetite, Bloating
Interventions
Newly Diagnosed
Other
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
22 Years and older
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
11
States / cities
Mesa, Arizona • Mission Hills, California • Oxnard, California + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2021 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Oral Fructanase Administration on Gastrointestinal Symptoms After Inulin Challenge in Healthy Adults

NCT06628869
View directory record Official record
Conditions
Digestive Health, Gastrointestinal Health, FODMAP Intolerance, Food Sensitivity
Interventions
Fructanase, Maltodextrin placebo
Dietary Supplement
Lead sponsor
BIO-CAT, Inc.
Industry
Eligibility
20 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Randomized Placebo-Controlled Study to Evaluate the Effects of a Gummy and Capsule Supplement on Symptoms of Premenstrual Syndrome

NCT06763809
View directory record Official record
Conditions
PMS, Menstrual Cramp, Mood Change
Interventions
PMS Capsule, Capsule Placebo, PMS Gummy, Gummy Placebo
Dietary Supplement
Lead sponsor
Semaine Health
Industry
Eligibility
18 Years and older · Female only
Enrollment
176 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 2 Interventional

SAFEstart Feeding Intolerance Study Phase II

NCT00331201
View directory record Official record
Conditions
Feeding Intolerance, Abdominal Distention, Gastric Residual, Emesis and Diarrhea, Blood in Stool
Interventions
SAFEstart
Drug
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Ogden, Utah
Source: ClinicalTrials.gov public record
Updated Nov 27, 2006 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 2 Interventional

The Safety and Efficacy of Dexloxiglumide for the Relief of Symptoms of Functional Dyspepsia.

NCT00303264
View directory record Official record
Conditions
Dyspepsia
Interventions
dexloxiglumide, Nexium (esomeprazole)
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 75 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 4, 2012 · Synced Jul 22, 2026, 10:42 AM EDT
Not listed Phase 3 Interventional

Intranasal PH80 Spray for Acute Management of the Symptoms of Premenstrual Dysphoric Disorder

NCT01217775
View directory record Official record
Conditions
Premenstrual Dysphoric Disorder
Interventions
PH80, Placebo intranasal spray
Drug
Lead sponsor
Pherin Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 43 Years · Female only
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Results available

Multicenter Study to Evaluate the Efficacy and Safety of Metoclopramide Nasal Spray in Women With Diabetic Gastroparesis

NCT02025725
View directory record Official record
Conditions
Diabetic Gastroparesis
Interventions
Metoclopramide Nasal Spray, Placebo Nasal Spray
Drug
Lead sponsor
Evoke Pharma
Industry
Eligibility
18 Years to 75 Years · Female only
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
50
States / cities
Birmingham, Alabama • Dothan, Alabama • Huntsville, Alabama + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2020 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Phase 2 Interventional Results available

Mesalamine Granules for Irritable Bowel Syndrome (IBS) With Diarrhea

NCT01177410
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea
Interventions
Placebo, Mesalamine Granules 750 mg, Mesalamine Granules 1500 mg
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
20
States / cities
Sherwood, Arkansas • Anaheim, California • Sacramento, California + 17 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study to Evaluate the Efficacy of Poppi Apple Cider Vinegar Prebiotic Soda to Improve Gut Health In Participants

NCT05418439
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
Drink Poppi Soda
Dietary Supplement
Lead sponsor
Drink Poppi
Industry
Eligibility
18 Years to 45 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2022 · Synced Jul 22, 2026, 10:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Abdominal Symptom Phenotype Study in Children

NCT01204515
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Not listed
Lead sponsor
Baylor College of Medicine
Other
Eligibility
7 Years to 12 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2013 · Synced Jul 22, 2026, 10:42 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Visible Abdominal Distension

NCT06369753
View directory record Official record
Conditions
Irritable Bowel Syndrome, Dyspepsia, Functional Bloating
Interventions
Biofeedback, Placebo
Behavioral
Lead sponsor
Hospital Universitari Vall d'Hebron Research Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Jul 22, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study to Evaluate a Probiotic in Healthy Subjects With a History of Abdominal Discomfort and Bloating

NCT01099696
View directory record Official record
Conditions
Abdominal Discomfort, Bloating
Interventions
B. infantis 35624, placebo
Dietary Supplement
Lead sponsor
Procter and Gamble
Industry
Eligibility
18 Years to 75 Years
Enrollment
302 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
10
States / cities
Chicago, Illinois • Rockford, Illinois • Indianapolis, Indiana + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2012 · Synced Jul 22, 2026, 10:42 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Randomized, Placebo Controlled Clinical Study to Assess the Effect of a Blend of Digestive Enzymes and Extracts on Bloating in Adults.

NCT07033000
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with actives
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
New Port Richey, Florida
Source: ClinicalTrials.gov public record
Updated Jun 23, 2025 · Synced Jul 22, 2026, 10:42 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Effects of a Butyrate-Polyphenol Formulation on Gut Health and Associated Symptoms

NCT07371975
View directory record Official record
Conditions
Gut Health
Interventions
Butyrate + Polyphenol Formulation, Placebo
Dietary Supplement
Lead sponsor
Supplement Formulators, Inc.
Industry
Eligibility
25 Years to 70 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Jul 22, 2026, 10:42 AM EDT