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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 1 Interventional Accepts healthy volunteers Results available

Fecal Microbiota Transplantation in Pediatric Patients

NCT02108821
View directory record Official record
Conditions
Inflammatory Bowel Diseases (IBD), Crohn's Disease (CD), Ulcerative Colitis (UC)
Interventions
Fecal Microbiota Transplantation (FMT)
Biological
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
2 Years to 22 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Sep 5, 2026, 4:59 AM EDT
Recruiting Phase 2 Interventional

A Clinical Trial of Soluble Fiber for Asthma

NCT06372249
View directory record Official record
Conditions
Asthma in Children
Interventions
Inulin
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Terminated No phase listed Observational

Gut Microbiome and Depression

NCT05808101
View directory record Official record
Conditions
Multiple Sclerosis, Depression
Interventions
Neuro-QoL T-score determination
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Sep 5, 2026, 4:59 AM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Genomic Resources for Enhancing Available Therapies (GREAT1.0) Study

NCT04306939
View directory record Official record
Conditions
Chronic Pancreatitis, Inflammatory Bowel Diseases, Hepatitis, NASH - Nonalcoholic Steatohepatitis, Acute Pancreatitis, Rheumatoid Arthritis, Diabetes Mellitus, Dyslipidemias, Multiple Sclerosis, Irritable Bowel Syndrome, Chronic Pain, Chronic Disease, Chronic Kidney Diseases, Crohn Disease, Celiac Disease, Biliary Cirrhosis, Bile Acid Synthesis Defect, Gastritis, Cholecystitis, Cholelithiases, IPMN, Cyst Pancreas, Cystic Fibrosis, Pancreatic Exocrine Insufficiency, Diarrhea Chronic, Constipation - Functional, Constipation Chronic Idiopathic
Interventions
venipuncture, Questionnaires, Additional Sample Collections
Other · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years and older
Enrollment
120,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Active, not recruiting Phase 2 Interventional

Pirtobrutinib and Venetoclax With MRD Detection for Previously Untreated Chronic Lymphocytic Leukemia

NCT05677919
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Computed Tomography, Magnetic Resonance Imaging, Pirtobrutinib, Positron Emission Tomography, Venetoclax, Echocardiography, Multigated Acquisition Scan, Biopsy
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Completed No phase listed Observational

Schizophrenia and the Gut Microbiome

NCT02921243
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Not listed
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 64 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 18, 2019 · Synced Sep 5, 2026, 4:59 AM EDT
Completed No phase listed Observational

A Pilot Study of Influenza Viruses Isolated From Immunocompromised Children and Adolescents

NCT02352389
View directory record Official record
Conditions
Influenza, Human
Interventions
Blood sample, Nasal swab, Oropharyngeal swab, Stool sample, Symptom checklist
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 21 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Sep 5, 2026, 4:59 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

CVD 38000: Study of Responses to Vaccination With Typhoid and/or Cholera

NCT03705585
View directory record Official record
Conditions
Typhoid and/or Cholera Vaccination
Interventions
Vivotif Typhoid Oral Vaccine, Vaxchora
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders

NCT03266068
View directory record Official record
Conditions
Campylobacter Infections, Irritable Bowel Syndrome
Interventions
DNA Analysis of Blood Sample, Flexible sigmoidoscopy with colonic biopsies, Small bowel and colonic gastrointestinal permeability, Stool sample analysis
Genetic · Procedure · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 19, 2022 · Synced Sep 5, 2026, 4:59 AM EDT
Terminated Phase 1 Interventional

Vudalimab (XmAb20717) in Combination With Standard of Care Treatment in Patients With Metastatic Castration Sensitive Prostate Cancer

NCT05733351
View directory record Official record
Conditions
Castration-Sensitive Prostate Carcinoma, Metastatic Prostate Adenocarcinoma, Stage IVB Prostate Cancer AJCC v8
Interventions
Abiraterone, Biospecimen Collection, Bone Scan, Computed Tomography, Docetaxel, Enzalutamide, FDG-Positron Emission Tomography, Magnetic Resonance Imaging, PSMA PET Scan, Vudalimab
Drug · Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Sep 5, 2026, 4:59 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Comprehensive Outcomes for After Cancer Health

NCT05349227
View directory record Official record
Conditions
Ovarian Cancer, Breast Cancer, Lung Cancer, Gastric Cancer, Survivorship, Endometrial Cancer, Head and Neck Cancers, Prostate Cancers, Geriatric Oncology, Metastatic Breast Cancer, Metastatic Cancer
Interventions
Digital Health Coaching Program, Fitbit
Behavioral · Device
Lead sponsor
Pack Health
Industry
Eligibility
18 Years and older
Enrollment
625 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
7
States / cities
Gainesville, Florida • Boston, Massachusetts • Omaha, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 5, 2026, 4:59 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Modulation of Type 1 Diabetes Susceptibility Through the Use of Probiotics

NCT03423589
View directory record Official record
Conditions
Type1diabetes, Type1 Diabetes Mellitus
Interventions
VSL#3
Dietary Supplement
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
5 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 5, 2026, 4:59 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

the Effectiveness of a Weight Management Program in Patients Who Have Completed Treatment for Endometrial Cancer

NCT03908996
View directory record Official record
Conditions
Endometrial Cancer, Overweight
Interventions
Profile by Sanford weight management plan
Behavioral
Lead sponsor
Sanford Health
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
Fargo, North Dakota • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Mar 17, 2021 · Synced Sep 5, 2026, 4:59 AM EDT
Recruiting No phase listed Observational

Fatigue and Molecular Mechanisms in Cancer Patients Receiving CCRT

NCT06633224
View directory record Official record
Conditions
Cancer, Thoracic Cancer, Gynecologic Cancer, Head and Neck Cancer, Gastrointestinal Cancer
Interventions
Blood Specimen Collection, Stool Specimen Collection, Quality of Life (QOL) Questionnaires
Procedure · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 5, 2026, 4:59 AM EDT
Not listed Phase 1 Interventional

Reduction of C-Difficile Infection Using Stool Transplant

NCT02112279
View directory record Official record
Conditions
C-difficile
Interventions
Donor microbiota applied via colonoscopy.
Biological
Lead sponsor
Providence Holy Cross Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Mission Hills, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2015 · Synced Sep 5, 2026, 4:59 AM EDT
Completed Not applicable Interventional

Effect of Ketone Esters in Parkinson's Disease

NCT04477161
View directory record Official record
Conditions
Parkinson Disease, Ketosis
Interventions
Ketone Ester Elite endurance Nutrition Drink, Stool Sample
Dietary Supplement · Other
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 3, 2022 · Synced Sep 5, 2026, 4:59 AM EDT
Not listed Not applicable Interventional

Gastrointestinal Microbiome Study of Appendiceal Cancer

NCT02599116
View directory record Official record
Conditions
Pseudomyxoma Peritonei, Appendiceal Neoplasm, Cancer, Appendiceal
Interventions
Bio-specimen collection, Questionnaire
Other
Lead sponsor
Mercy Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 26, 2023 · Synced Sep 5, 2026, 4:59 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Dietary Sodium Supplementation on Growth & Intestinal Microbiome

NCT05546814
View directory record Official record
Conditions
Preterm Birth
Interventions
Sodium algorithm
Procedure
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
25 Weeks to 30 Weeks
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Sep 5, 2026, 4:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Adherence to Minimally Invasive Testing

NCT02251782
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Epi proColon Test, Fecal Immunochemical Test (FIT)
Device
Lead sponsor
Epigenomics, Inc
Industry
Eligibility
50 Years to 76 Years
Enrollment
490 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
Portland, Oregon • Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 29, 2015 · Synced Sep 5, 2026, 4:59 AM EDT
Recruiting Phase 1 Interventional

Role of Gut Microbiome and Fecal Transplant on Medication-Induced GI Complications in Patients With Cancer

NCT03819296
View directory record Official record
Conditions
Clinical Stage 0 Cutaneous Melanoma AJCC v8, Clinical Stage I Cutaneous Melanoma AJCC v8, Clinical Stage IA Cutaneous Melanoma AJCC v8, Clinical Stage IB Cutaneous Melanoma AJCC v8, Clinical Stage II Cutaneous Melanoma AJCC v8, Clinical Stage IIA Cutaneous Melanoma AJCC v8, Clinical Stage IIB Cutaneous Melanoma AJCC v8, Clinical Stage IIC Cutaneous Melanoma AJCC v8, Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Colitis, Lung Non-Small Cell Carcinoma, Malignant Genitourinary System Neoplasm, Malignant Solid Neoplasm, Pathologic Stage 0 Cutaneous Melanoma AJCC v8, Pathologic Stage I Cutaneous Melanoma AJCC v8, Pathologic Stage IA Cutaneous Melanoma AJCC v8, Pathologic Stage IB Cutaneous Melanoma AJCC v8, Pathologic Stage II Cutaneous Melanoma AJCC v8, Pathologic Stage IIA Cutaneous Melanoma AJCC v8, Pathologic Stage IIB Cutaneous Melanoma AJCC v8, Pathologic Stage IIC Cutaneous Melanoma AJCC v8, Pathologic Stage III Cutaneous Melanoma AJCC v8, Pathologic Stage IIIA Cutaneous Melanoma AJCC v8, Pathologic Stage IIIB Cutaneous Melanoma AJCC v8, Pathologic Stage IIIC Cutaneous Melanoma AJCC v8, Pathologic Stage IIID Cutaneous Melanoma AJCC v8, Pathologic Stage IV Cutaneous Melanoma AJCC v8, Stage 0 Lung Cancer AJCC v8, Stage I Lung Cancer AJCC v8, Stage IA1 Lung Cancer AJCC v8, Stage IA2 Lung Cancer AJCC v8, Stage IA3 Lung Cancer AJCC v8, Stage IB Lung Cancer AJCC v8, Stage II Lung Cancer AJCC v8, Stage IIA Lung Cancer AJCC v8, Stage IIB Lung Cancer AJCC v8, Stage III Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIB Lung Cancer AJCC v8, Stage IIIC Lung Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVA Lung Cancer AJCC v8, Stage IVB Lung Cancer AJCC v8
Interventions
Best Practice, Biospecimen Collection, Endoscopic Procedure, Fecal Microbiota Transplantation, Infliximab, Laboratory Biomarker Analysis, Prednisone, Vedolizumab
Other · Procedure · Biological + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Completed Phase 2 Interventional

Probiotics for Clostridium Difficile Infection in Older Adults

NCT01680874
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Sep 5, 2026, 4:59 AM EDT
Active, not recruiting Not applicable Interventional

Abnormal Food Timing and Circadian Dyssynchrony in Alcohol Induced Colon Carcinogenesis

NCT03955510
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Right time eating, Delayed time eating, Sigmoidoscopy, Optional 24h circadian assessment in the Biological Rhythms lab, Alcohol
Other · Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
21 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 5, 2026, 4:59 AM EDT
Not listed No phase listed Observational

Stool Sample Collection Study

NCT06294873
View directory record Official record
Conditions
Colorectal Cancer
Interventions
A screening device for the detection of colorectal and other aerodigestive tract cancers
Diagnostic Test
Lead sponsor
Innovis LLC
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Anaheim, California • Ocala, Florida • Cordova, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 5, 2024 · Synced Sep 5, 2026, 4:59 AM EDT
Completed No phase listed Observational

Screening Tests in Detecting Colorectal Cancer

NCT00025025
View directory record Official record
Conditions
Colorectal Cancer
Interventions
sample testing
Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
65 Years to 80 Years
Enrollment
4,482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
65
States / cities
Tuscon, Arizona • Oakland, California • Aurora, Colorado + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 3, 2016 · Synced Sep 5, 2026, 4:59 AM EDT