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ClinicalTrials.gov public records Last synced Oct 24, 2026, 9:15 AM EDT

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Showing 49–72 of 251 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: stool sample Clear all
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 15, 2025 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational

Effects of Chemotherapy on Intestinal Bacteria in Patients With Newly Diagnosed Breast Cancer

NCT02370277
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage I Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer
Interventions
Cytology Specimen Collection Procedure, Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 18, 2019 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Pilot Study Assessing Intestinal Microbiota Diversification and Changes After Travel to South(East) Asia From the US

NCT03043300
View directory record Official record
Conditions
Dysbiosis
Interventions
Screening Criteria Review, Pre-Travel Questionnaire, Pre-Travel Stool Specimen Collection, Short-Term Post-Travel Questionnaire, Short-Term Post-Travel Stool Specimen Collection, Long-Term Post-Travel Questionnaire, Long-Term Post-Travel Stool Specimen Collection
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 30, 2019 · Synced Oct 24, 2026, 9:15 AM EDT
Active, not recruiting Early Phase 1 Interventional

Hyperthermic Intraperitoneal Chemotherapy With Cisplatin During Surgery or Cisplatin Before Surgery for the Treatment of Stage III or IV Ovarian, Fallopian Tube or Peritoneal Cancer

NCT05415709
View directory record Official record
Conditions
Fallopian Tube Endometrioid Adenocarcinoma, Fallopian Tube Mucinous Adenocarcinoma, Fallopian Tube Serous Adenocarcinoma, Ovarian Endometrioid Adenocarcinoma, Ovarian Mucinous Adenocarcinoma, Ovarian Serous Adenocarcinoma, Primary Peritoneal Endometrioid Adenocarcinoma, Primary Peritoneal Serous Adenocarcinoma, Stage III Fallopian Tube Cancer AJCC v8, Stage III Ovarian Cancer AJCC v8, Stage III Primary Peritoneal Cancer AJCC v8, Stage IIIA Fallopian Tube Cancer AJCC v8, Stage IIIA Ovarian Cancer AJCC v8, Stage IIIA Primary Peritoneal Cancer AJCC v8, Stage IIIA1 Fallopian Tube Cancer AJCC v8, Stage IIIA1 Ovarian Cancer AJCC v8, Stage IIIA2 Fallopian Tube Cancer AJCC v8, Stage IIIA2 Ovarian Cancer AJCC v8, Stage IIIB Fallopian Tube Cancer AJCC v8, Stage IIIB Ovarian Cancer AJCC v8, Stage IIIB Primary Peritoneal Cancer AJCC v8, Stage IIIC Fallopian Tube Cancer AJCC v8, Stage IIIC Ovarian Cancer AJCC v8, Stage IIIC Primary Peritoneal Cancer AJCC v8, Stage IV Fallopian Tube Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8, Stage IV Primary Peritoneal Cancer AJCC v8, Stage IVA Fallopian Tube Cancer AJCC v8, Stage IVA Ovarian Cancer AJCC v8, Stage IVA Primary Peritoneal Cancer AJCC v8, Stage IVB Fallopian Tube Cancer AJCC v8, Stage IVB Ovarian Cancer AJCC v8, Stage IVB Primary Peritoneal Cancer AJCC v8
Interventions
Carboplatin, Cisplatin, Cytoreductive Surgery, Hyperthermic Intraperitoneal Chemotherapy, Paclitaxel, Quality-of-Life Assessment, Questionnaire Administration, Biospecimen Collection, Diagnostic Imaging
Drug · Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 24, 2026, 9:15 AM EDT
Completed Not applicable Interventional

Geographically Clustered Mailing of Fecal Immunochemical Test (FIT) Kits

NCT03718221
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Usual Care FIT Screening Strategy, GeoMail FIT Screening Strategy
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
50 Years to 64 Years
Enrollment
8,653 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 30, 2021 · Synced Oct 24, 2026, 9:15 AM EDT
Terminated No phase listed Observational

Stool Sample Collection Protocol for Development of Screening Test for Colorectal Cancer and Other Digestive Tract Cancers

NCT02503631
View directory record Official record
Conditions
Colorectal Neoplasms, Digestive System Diseases, Colonic Diseases, Colorectal Cancer
Interventions
Stool Sample Collection Kit
Device
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years to 90 Years
Enrollment
397 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
21
States / cities
Newport Beach, California • Hamden, Connecticut • Holiday, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2018 · Synced Oct 24, 2026, 9:15 AM EDT
Active, not recruiting No phase listed Observational

An Observational Research Study for Cancer Patients on Immune Checkpoint Inhibitors, DiRECT Study

NCT05364086
View directory record Official record
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Electronic Health Record Review, Interview, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
University of Rochester NCORP Research Base
Other
Eligibility
18 Years and older
Enrollment
2,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
259
States / cities
Jonesboro, Arkansas • Anaheim, California • Antioch, California + 203 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational

A Two-Arm, Multi-Centre Clinical Evaluation of the xTAG Gastrointestinal Pathogen Panel

NCT01326013
View directory record Official record
Conditions
Infectious, Colitis, Gastroenteritis
Interventions
Not listed
Lead sponsor
Luminex Molecular Diagnostics
Industry
Eligibility
Not listed
Enrollment
1,534 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
4
States / cities
Tucson, Arizona • St Louis, Missouri • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2012 · Synced Oct 24, 2026, 9:15 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 22, 2024 · Synced Oct 24, 2026, 9:15 AM EDT
Not listed No phase listed Observational

Gut Permeability-related Inflammation and Cardiovascular Disease Risk in Normal-weight and Metabolically Healthy Obesity

NCT05308394
View directory record Official record
Conditions
Obesity
Interventions
No experimental intervention will take place - the study is cross-sectional. Each participant will provide biological samples.
Other
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Timeline
2022
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 15, 2022 · Synced Oct 24, 2026, 9:15 AM EDT
Recruiting No phase listed Observational

Understanding New Cachexia Subtypes Through Observational Epidemiological Research

NCT07776353
View directory record Official record
Conditions
Advanced Colorectal Carcinoma, Advanced Lung Non-Small Cell Carcinoma, Advanced Pancreatic Adenocarcinoma, Stage IV Colorectal Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IV Pancreatic Cancer AJCC v8, Unresectable Colorectal Carcinoma, Unresectable Lung Non-Small Cell Carcinoma
Interventions
Biospecimen Collection, Computed Tomography, Electronic health record review, Medical Device Usage and Evaluation, Physical functions assessments, Positron Emission Tomography (PET), Survey Administration
Procedure · Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 24, 2026, 9:15 AM EDT
Completed Phase 2 Interventional Results available

The Effects of Patiromer on Serum Potassium Level and Gut Microbiome of ESRD Patients With Hyperkalemia

NCT03326583
View directory record Official record
Conditions
ESRD, Hyperkalemia, End Stage Renal Disease
Interventions
Patiromer
Drug
Lead sponsor
Dominic Raj
Other
Eligibility
18 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 9, 2023 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Community Colorectal Cancer Awareness, Research, Education & Screening (C-CARES)

NCT03906110
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Community Colorectal Cancer Awareness, Research, Education & Screening (C-CARES) Materials, Contact Message, Personalized One on One Education, Fecal Immunochemical Test (FIT)
Behavioral · Diagnostic Test
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
50 Years to 75 Years
Enrollment
327 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Oct 24, 2026, 9:15 AM EDT
Terminated No phase listed Observational

Relationship Between Alterations in the GI Microbiome and GI Inflammation on Symptom Burden in Women With Breast Cancer Receiving Chemotherapy

NCT06238986
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years and older · Female only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

An Evaluation of a Multi-target Stool DNA (Mt-sDNA) Test, Cologuard, for CRC Screening in Individuals Aged 45-49 and at Average Risk for Development of Colorectal Cancer: Act Now

NCT03728348
View directory record Official record
Conditions
Colorectal Cancer
Interventions
mt-sDNA screening test, Colonoscopy
Diagnostic Test · Procedure
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
45 Years to 49 Years
Enrollment
983 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
39
States / cities
Phoenix, Arizona • Camarillo, California • Laguna Hills, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2021 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multiscale Omics for the Development of a Cohort Database and Study Platform in Breast Cancer Survivors

NCT04999826
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage 0 Breast Cancer AJCC v8, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8
Interventions
Biospecimen Collection, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Clinical Validation of An Optimized Multi-Target Stool DNA (Mt-sDNA 2.0) Test, for Colorectal Cancer Screening "BLUE-C"

NCT04144738
View directory record Official record
Conditions
Colorectal Cancer
Interventions
mt-sDNA 2.0 screening test, FIT test, Colonoscopy
Diagnostic Test · Procedure
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years and older
Enrollment
26,758 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
195
States / cities
Birmingham, Alabama • Cullman, Alabama • Dothan, Alabama + 161 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2023 · Synced Oct 24, 2026, 9:15 AM EDT
Recruiting Not applicable Interventional

Low-Count Quantitative SPECT for Men Treated With Radium-223

NCT07221825
View directory record Official record
Conditions
Prostate Cancer, Cancer of the Prostate
Interventions
Low-count quantitative single-photon emission computed tomography imaging
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Male only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 24, 2026, 9:15 AM EDT
Terminated No phase listed Observational

Associations Between Chemotherapy-Induced Nausea in Patients With Genitourinary, Sarcoma or Melanoma Cancers and Changes in Gut Microbiome: Potential for Precision Therapeutics

NCT05819827
View directory record Official record
Conditions
Bladder Cancer, Prostate Cancer, Testicular Cancer, Bladder Carcinoma, Genitourinary System Carcinoma, Malignant Testicular Neoplasm, Melanoma, Prostate Carcinoma, Sarcoma
Interventions
Blood and Tissue
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational

Immuno-Oncology Database and Bioregistry

NCT04656873
View directory record Official record
Conditions
Malignancy, Immune System Diseases, Autoimmune Diseases
Interventions
Biospecimen Collection, Medical Chart Review, Questionnaires/Surveys
Procedure · Other
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 24, 2026, 9:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ketogenic Diet Health and Longevity

NCT05939011
View directory record Official record
Conditions
Ketogenic Dieting, Ketoses, Metabolic, Ketosis
Interventions
Well-formulated Ketogenic Diet
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
30 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational

Kids Intestinal Dysfunction in Congenital Heart Disease: the Kind Heart Study

NCT02824705
View directory record Official record
Conditions
Congenital Disease
Interventions
Congenital Heart Disease Surgery
Procedure
Lead sponsor
University of Arizona
Other
Eligibility
3 Days to 2 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 24, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The BEACH Interview Study- Pregnant and Breastfeeding Mothers

NCT03036696
View directory record Official record
Conditions
Pediatric Obesity, Recruitment
Interventions
Pregnant Mothers Interview, Breastfeeding Mothers Interview
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Oct 24, 2026, 9:15 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 20, 2022 · Synced Oct 24, 2026, 9:15 AM EDT