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ClinicalTrials.gov public records Last synced Oct 23, 2026, 1:15 PM EDT

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Showing 481–504 of 913 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Results available

Effects of Administration of SCFA in Rheumatoid Arthritis Inadequate Responders

NCT05718583
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Butyrate
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

A Multi-Center Protocol for Obtaining and Storing Human Samples for Immediate or Future Microbial, Immune, or Host Microbe Scientific Study

NCT00765141
View directory record Official record
Conditions
Infection
Interventions
Not listed
Lead sponsor
Southwest Regional Wound Care Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Nov 26, 2015 · Synced Oct 23, 2026, 1:15 PM EDT
Completed No phase listed Observational

Fecal Calprotectin in Cystic Fibrosis

NCT00863694
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
1 Month and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 13, 2013 · Synced Oct 23, 2026, 1:15 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Honey Study

NCT06107231
View directory record Official record
Conditions
Postprandial Glycemia, Metabolic Stress, Cognitive Change, Satisfaction, Personal
Interventions
Honey, Sucrose, Honey plus almonds, Sucrose plus almonds
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 40 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Exercise, Hypertension, and Gut Dysbiosis in African Americans

NCT03897777
View directory record Official record
Conditions
Hypertension
Interventions
Exercise Training effect on Hypertension and Gut Dysbiosis
Behavioral
Lead sponsor
North Carolina Agriculture & Technical State University
Other
Eligibility
30 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Completed Phase 2 Interventional

PMT for MDRO Decolonization

NCT05632315
View directory record Official record
Conditions
Multidrug Resistant Bacterial Infection, Enterobacteriaceae Infections, Pseudomonas Aeruginosa, VRE Infection, Methicillin-resistant Staphylococcus Aureus
Interventions
PMT
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
Atlanta, Georgia • St Louis, Missouri • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pilot Study for Colorectal Cancer and Advanced Adenoma Detection With the Mainz Biomed Colorectal Cancer Test

NCT06864338
View directory record Official record
Conditions
Colorectal Cancer Screening, Colorectal Cancer Metastatic, Colon Adenocarcinoma
Interventions
Not listed
Lead sponsor
Mainz Biomed
Industry
Eligibility
18 Years and older
Enrollment
2,700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Morrisville, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Oct 23, 2026, 1:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Role of Dietary Titanium Dioxide on the Human Gut Microbiome and Health

NCT05864352
View directory record Official record
Conditions
Inflammation, Microbiota, Gastrointestinal Irritation
Interventions
Not listed
Lead sponsor
University of Massachusetts, Lowell
Other
Eligibility
18 Years to 30 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lowell, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 23, 2026, 1:15 PM EDT
Terminated Phase 2 Interventional Results available

Personalized AZithromycin/metronidAZole Therapy in Pediatric Crohn's Disease (CD)

NCT04186247
View directory record Official record
Conditions
Crohn Disease, Pediatric Crohns Disease
Interventions
Azithromycin, Metronidazole, Standard of Care
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
3 Years to 17 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
San Francisco, California • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 23, 2026, 1:15 PM EDT
Completed No phase listed Observational

Helicobacter Pylori Sample Collection Protocol Post Therapy Subjects

NCT03060733
View directory record Official record
Conditions
Helicobacter Pylori Infection, Gastric Ulcer, Nausea, Abdominal Pain, Weight Loss, Stomach Ulcer, Loss of Appetite, Bloating
Interventions
Post-Therapy
Other
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
22 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
4
States / cities
Mission Hills, California • Great Neck, New York • Mentor, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Developmental Impacts of Microplastics Exposure in Early Life

NCT06107933
View directory record Official record
Conditions
Infant Development, Breast Feeding, Environmental Exposure
Interventions
Observational only
Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Completed Phase 4 Interventional Results available

Effects of Lubiprostone on Small Bowel and Colonic Bacteria: A Correlation Study With Segmental and Whole Gut Transit

NCT00844831
View directory record Official record
Conditions
Constipation
Interventions
Lubiprostone
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 27, 2017 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Cohort to Augment the Understanding of Sarcoma Survivorship Across the Lifespan

NCT06482957
View directory record Official record
Conditions
Sarcoma
Interventions
Surveys, Blood Collection, Saliva Collection, Urine Collection, Stool Collection, Tissue collection, Physical Activity Monitoring
Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
Not listed
Enrollment
2,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 19, 2025 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting No phase listed Observational

Natural History Study for DNA Repair Disorders

NCT05484570
View directory record Official record
Conditions
DNA Repair Disorder, Cockayne Syndrome, Xeroderma Pigmentosum, Trichothiodystrophy
Interventions
Interval History, Physical Examination, ECAB Assessment, Gait Assessment, Specimen Sample Collection
Other
Lead sponsor
University of Minnesota
Other
Eligibility
6 Months and older
Enrollment
40 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Completed Phase 1 Interventional

Vitamin D Regulation of Gut Specific B Cells and Antibodies Targeting Gut Bacteria in Inflammatory Bowel Disease

NCT04828031
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Ulcerative Colitis, Crohn Disease
Interventions
Vitamin D
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Multilevel Action Toward Colorectal Cancer and Hepatitis C Education and Screening

NCT06745895
View directory record Official record
Conditions
Colorectal Cancer Screening, Hepatitis C Virus
Interventions
MATCHES
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
45 Years to 75 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Milk Fat Intake and Metabolic Health Markers

NCT02659748
View directory record Official record
Conditions
Insulin Sensitivity, Type 2 Diabetes
Interventions
Milk Fat, Control Fat
Dietary Supplement
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 26, 2016 · Synced Oct 23, 2026, 1:15 PM EDT
Active, not recruiting Not applicable Interventional

DNA Sequencing in Clinical Practice, Mayo Clinic Health Tapestry Study

NCT05212428
View directory record Official record
Conditions
Genetic Disorder
Interventions
Biospecimen Collection, Diagnostic Laboratory Biomarker Analysis, Genetic Counseling, Questionnaire Administration
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
110,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 23, 2026, 1:15 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Pilot Study of Stomach Cancer Early Detection and Prevention With Endoscopy

NCT05566899
View directory record Official record
Conditions
Gastric Cancer
Interventions
esophagogastroduodenoscopy (EGD)
Procedure
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
40 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 23, 2026, 1:15 PM EDT
Completed No phase listed Observational

Microbiota Changes in Acute Myeloid Leukemia Patients Undergoing Intensive Chemotherapy

NCT03728699
View directory record Official record
Conditions
Acute Myeloid Leukemia
Interventions
Sample Collection Blood, Stool Sample
Diagnostic Test
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years to 99 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2023 · Synced Oct 23, 2026, 1:15 PM EDT
Completed Early Phase 1 Interventional

Effect of High-Legume Diet on Colorectal Cancer Risk

NCT00339469
View directory record Official record
Conditions
Inflammation, Prevention and Control, Colonic Neoplasms, Diet, Insulin
Interventions
LIFE
Dietary Supplement
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
35 Years to 75 Years · Male only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Oct 23, 2026, 1:15 PM EDT
Recruiting Phase 1 Interventional

The Microbiota Augmentation to Reestablish Commensal Organisms (MARCO) Trial

NCT06871111
View directory record Official record
Conditions
Liver Diseases, Liver Failure, Cirrhosis, Liver
Interventions
Commensal Bacteria Strains
Biological
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 23, 2026, 1:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome Analysis of Constipated Versus Non-constipation Patients

NCT04106232
View directory record Official record
Conditions
Rome IV Functional Constipation
Interventions
No change in procedure except for specimen collection throughout procedure
Other
Lead sponsor
HyGIeaCare, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
3
States / cities
Flowood, Mississippi • Cincinnati, Ohio • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 27, 2023 · Synced Oct 23, 2026, 1:15 PM EDT
Completed Phase 2 Interventional Results available

Antibiotic "Dysbiosis" in Preterm Infants

NCT02784821
View directory record Official record
Conditions
Enterocolitis, Necrotizing, Bacteremia, Bronchopulmonary Dysplasia, Intraventricular Hemorrhage, Periventricular Leukomalacia, Chronic Lung Disease, Ileal Perforation
Interventions
Antibiotic, Gastric fluid, Breast milk, Stool samples, Antibiotics
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
23 Weeks to 33 Weeks
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Oct 23, 2026, 1:15 PM EDT