Independent directory Public ClinicalTrials.gov records United States
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Showing 49–72 of 74 matching trials from the live ClinicalTrials.gov search.
Conditions
Constipation, Bloating
Interventions
Dietary supplement for digestive health, placebo capsule
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Stomach Distended, Bloating
Interventions
HUM Flatter Me
Dietary Supplement
Lead sponsor
HUM Nutrition, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Feeding Intolerance, Abdominal Distension
Interventions
An abdominal binder
Device
Lead sponsor
Albany Medical College
Other
Eligibility
Up to 1 Year
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Albany, New York
Conditions
Bloating
Interventions
OPTI-BIOME™ Bacillus subtilis MB40, Placebo
Dietary Supplement · Other
Lead sponsor
BIO-CAT Microbials, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Foothill Ranch, California • Orlando, Florida
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
Conditions
Gut Health, Bloating, Irregular Bowel Movements, Gastrointestinal Symptoms
Interventions
Active Supplement, Placebo Comparator
Dietary Supplement
Lead sponsor
Belli Welli Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Pain
Interventions
Probiotics - Lactobacillus and bifidobacterium, Placebo
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Gut Health
Interventions
Butyrate Formulation, Butyrate + Polyphenol Formulation, Placebo
Dietary Supplement
Lead sponsor
Supplement Formulators, Inc.
Industry
Eligibility
21 Years to 70 Years
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Conditions
Diabetic Gastroparesis
Interventions
Metoclopramide Nasal Spray, Placebo Nasal Spray
Drug
Lead sponsor
Evoke Pharma
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
49
States / cities
Birmingham, Alabama • Dothan, Alabama • Huntsville, Alabama + 45 more
Conditions
Gastrointestinal Symptoms, Bloating, Digestive Discomfort, Low Energy Levels, Brain Fog, Mood Instability, Sleep Quality, Skin Clarity, Facial Puffiness, Bad Breath
Interventions
Super Liver
Dietary Supplement
Lead sponsor
SuperBonsai Inc.
Industry
Eligibility
30 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Indigestion, Nausea
Interventions
YM443
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
18 Years to 75 Years
Enrollment
416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
59
States / cities
Huntsville, Alabama • Little Rock, Arkansas • Anaheim, California + 52 more
Completed No phase listed Observational Accepts healthy volunteers

The Effects of a Postbiotic Supplement on Biomarkers of Gut Health

NCT07527286
Conditions
Gastrointestinal, Microbiota Balance, Microbiota, Cortisol, Butyrate, Bloating, Gastrointestinal Upset, Immuno-modulation
Interventions
Postbiotic
Dietary Supplement
Lead sponsor
Verb Biotics LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Canfield, Ohio
Recruiting No phase listed Observational Accepts healthy volunteers

GI Neuromuscular Pathology Prospective Registry

NCT02165059
Conditions
Gastroparesis
Interventions
Surgical Full Thickness Biopsy
Procedure
Lead sponsor
Indiana University
Other
Eligibility
6 Months to 90 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
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
Conditions
Functional Dyspepsia, Small Intestinal Bacterial Overgrowth
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 90 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Completed No phase listed Observational Accepts healthy volunteers

Abdominal Symptom Phenotype Study in Children

NCT01204515
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
Conditions
Irritable Bowel Syndrome
Interventions
curcumin, placebo
Dietary Supplement
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Gas and Bloating, Diarrhea, Constipation
Interventions
GI Health Active Product 1, GI Health Product Placebo Control
Dietary Supplement
Lead sponsor
Radicle Science
Industry
Eligibility
21 Years to 105 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Del Mar, California
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
Conditions
Bloating
Interventions
Hypnotherapy
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Gastroparesis, Nausea, Vomiting, Abdominal Pain
Interventions
Acupuncture for gastroparesis, Acupuncture for musculoskeletal pain
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Lutherville, Maryland
Conditions
Premenstrual Syndrome, Menstrual Pain
Interventions
DITTO Cycle Supplement
Dietary Supplement
Lead sponsor
Muse Nutrition Ltd
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Irritable Bowel Syndrome
Interventions
Probiotic
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Houston, Texas • Seattle, Washington
Conditions
Gut Health, Microbiome, Bloating, Indigestion, Constipation, Diarrhea, Food Cravings, Abdominal Discomfort, Bowel Movement Irregularity
Interventions
Essential Fibre+
Dietary Supplement
Lead sponsor
Artah Nutrition Limited
Industry
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Las Vegas, Nevada