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ClinicalTrials.gov public records Last synced Oct 24, 2026, 4:50 PM EDT

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Showing 121–144 of 251 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool sample Clear all
Recruiting Not applicable Interventional

Effect of Meal Timing During Adjuvant Treatment for Cancer

NCT07524218
View directory record Official record
Conditions
Cancer
Interventions
Time-restricted eating, Questionnaire Administration, Biospecimen Collection, Health coaching
Behavioral · Other · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Recruiting No phase listed Observational

Prospective Evaluation of Chronic Pancreatitis for Epidemiologic and Translational Studies

NCT03099850
View directory record Official record
Conditions
Pancreatitis
Interventions
Data Management and Monitoring
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
2,345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2030
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 24, 2026, 4:50 PM EDT
Active, not recruiting Phase 1 Interventional

A Vaccine (Neoantigen-Targeted ppDC) for the Treatment of H3 G34-mutant Diffuse Hemispheric Glioma

NCT06342908
View directory record Official record
Conditions
Diffuse Hemispheric Glioma, H3 G34-Mutant
Interventions
Biospecimen Collection, Dendritic Cell Therapy, Leukapheresis, Magnetic Resonance Imaging, Poly ICLC
Procedure · Biological · Drug
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Terminated No phase listed Observational

Mechanisms of Idelalisib-Associated Diarrhea in Patients With Relapsed Chronic Lymphocytic Leukemia, Indolent Non-hodgkin Lymphoma, or Small Lymphocytic Lymphoma

NCT02928510
View directory record Official record
Conditions
Absence of Signs or Symptoms, B-Cell Non-Hodgkin Lymphoma, Digestive System Signs and Symptoms, Indolent Adult Non-Hodgkin Lymphoma, Recurrent B-Cell Non-Hodgkin Lymphoma, Recurrent Chronic Lymphocytic Leukemia, Recurrent Indolent Adult Non-Hodgkin Lymphoma, Recurrent Small Lymphocytic Lymphoma
Interventions
Biospecimen Collection, Colonoscopy, Colposcopic Biopsy, Idelalisib, Laboratory Biomarker Analysis, Pharmacological Study, Physical Examination, Sigmoidoscopy
Procedure · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Oct 24, 2026, 4:50 PM EDT
Recruiting No phase listed Observational

Determining the Link Between Dietary Patterns, Fecal Microbiome and Response to Neoadjuvant Chemotherapy

NCT06595160
View directory record Official record
Conditions
Borderline Resectable Pancreatic Ductal Adenocarcinoma, Resectable Pancreatic Ductal Adenocarcinoma, Stage I Pancreatic Cancer AJCC v8
Interventions
Non-Interventional Study
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Oct 24, 2026, 4:50 PM EDT
Recruiting Phase 1 Interventional

Fecal Microbiota Transplant and Dietary Fiber Supplementation for the Treatment of Gut Graft Versus Host Disease

NCT05067595
View directory record Official record
Conditions
Intestinal Graft Versus Host Disease
Interventions
Colonoscopy, Fecal Microbiota Transplantation, Nutritional Supplementation, Survey Administration, Biospecimen Collection
Procedure · Biological · Dietary Supplement + 1 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Completed No phase listed Observational

Collection of Blood, Urine, and Stool to Monitor MetastaticColorectal Cancers

NCT03563651
View directory record Official record
Conditions
Stage III Colorectal Cancer AJCC v8, Stage IIIA Colorectal Cancer AJCC v8, Stage IIIB Colorectal Cancer AJCC v8, Stage IIIC Colorectal Cancer AJCC v8, Stage IV Colorectal Cancer AJCC v8, Stage IVA Colorectal Cancer AJCC v8, Stage IVB Colorectal Cancer AJCC v8, Stage IVC Colorectal Cancer AJCC v8
Interventions
Biopsy, Biospecimen Collection, Laboratory Biomarker Analysis, Questionnaire Administration
Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2021 · Synced Oct 24, 2026, 4:50 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Inflammation, Diabetes, Ethnicity and Obesity Cohort

NCT03022682
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Pre Diabetes
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 75 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2029
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Active, not recruiting No phase listed Observational

Metagenomic Evaluation of the Gut Microbiome in Patients With Lynch Syndrome and Other Hereditary Colonic Polyposis Syndromes

NCT02371135
View directory record Official record
Conditions
Lynch Syndrome, Hereditary Colonic Polyposis Syndromes
Interventions
colonic biopsies, questionnaires
Genetic
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Elucidation of Breast Milk Composition and Structure Over the First Year of Lactation: UC Davis Lactation Study

NCT01817127
View directory record Official record
Conditions
Healthy, Gestational Diabetes Mellitus, Type 2 Diabetes Mellitus
Interventions
Not listed
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
395 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2028
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 24, 2026, 4:50 PM EDT
Active, not recruiting Phase 2 Interventional

PLX038 for Treatment of Metastatic Platinum-resistant Ovarian, Primary Peritoneal, and Fallopian Tube Cancer

NCT05465941
View directory record Official record
Conditions
Platinum-Resistant Fallopian Tube Carcinoma, Platinum-Resistant Ovarian Carcinoma, Platinum-Resistant Primary Peritoneal Carcinoma, Stage IV Fallopian Tube Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8, Stage IV Primary Peritoneal Cancer AJCC v8
Interventions
Biopsy, Pegylated SN-38 Conjugate PLX038, Computed Tomography, Biospecimen Collection
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 24, 2026, 4:50 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

The Role of Gut Microbiota in Heart Failure and Pre-Heart Failure With Preserved Ejection Fraction

NCT02728154
View directory record Official record
Conditions
Heart Failure
Interventions
Blood Sample, Stool Sample
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Oct 24, 2026, 4:50 PM EDT
Withdrawn No phase listed Observational

Evaluating the Cologuard Test for Use in Lynch Syndrome

NCT04778566
View directory record Official record
Conditions
Lynch Syndrome, Colorectal Cancer, Colonic Adenoma, Colonic Polyp
Interventions
Cologuard test
Diagnostic Test
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Oct 24, 2026, 4:50 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Restoration of Antibiotics Related Infant Microbiota Perturbations by Autologous Fecal Transplant

NCT06609980
View directory record Official record
Conditions
Antibiotic Treatment
Interventions
autologous fecal matter transplant
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
1 Month to 4 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 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 24, 2026, 4:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of an 8-day Advanced Meditation, Samyama on Physical, Psychological and Spiritual Wellbeing ,and Associated Neural Mechanisms

NCT04366544
View directory record Official record
Conditions
Mental Health Wellness 1, Happiness, Depression, Consciousness, Level Altered, Ecstasy, Dietary Habits, Stress, Inflammatory Bowel Diseases
Interventions
Part A1: Survey, Part A2: Sample collection, Part B:
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
759 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Oct 24, 2026, 4:50 PM EDT
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 4, 2021 · Synced Oct 24, 2026, 4:50 PM EDT
Completed Not applicable Interventional

Vitamin D and Microbiota in Cystic Fibrosis

NCT02589444
View directory record Official record
Conditions
Vitamin D Deficiency, Cystic Fibrosis
Interventions
High-Dose Vitamin D3, Stool Sample, Sputum Sample, Sham Comparator, Blood draw
Dietary Supplement · Other · Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Oct 24, 2026, 4:50 PM EDT