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Showing 1–24 of 425 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Gut Health Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Increasing Uptake of Evidence-Based Screening Services Through CHW-led Multi-modality Intervention

NCT02970136
View directory record Official record
Conditions
Human Papillomavirus, Human Immunodeficiency Virus, Hepatitis C, ColoRectal Cancer
Interventions
OraQuick Swab, Fecal Immunochemical Test, OraQuick Fingerstick, Standard Screening Tests, HPV Self-Sampling Test, Home Based Screening Tests
Device · Other
Lead sponsor
University of Miami
Other
Eligibility
50 Years to 64 Years
Enrollment
754 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 27, 2021 · Synced Jul 21, 2026, 12:27 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The PRIME-CRC Trial to Promote CRC Screening in Rural Communities

NCT04313114
View directory record Official record
Conditions
Colorectal Cancer
Interventions
health literacy appropriate education and demonstration, shared decision making, automated call reminders or automated texts
Behavioral
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
45 Years to 75 Years
Enrollment
804 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
Bastrop, Louisiana • Marion, Louisiana • Saint Joseph, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Assessing Symptom and Mood Dynamics in Pain Using the Smartphone Application SOMA

NCT05754190
View directory record Official record
Conditions
Chronic Pain, Acute Pain, Post Operative Pain, Fibromyalgia, Primary, Fibromyalgia, Secondary, Fibromyalgia, Irritable Bowel Syndrome, Chronic Headache Disorder, Chronic Migraine, Chronic Pelvic Pain Syndrome, Temporomandibular Joint Disorders, Endometriosis-related Pain, Arthritis, Chronic Low-back Pain, Failed Back Surgery Syndrome, Post Herpetic Neuralgia, Neuropathic Pain, Painful Diabetic Neuropathy, Painful Bladder Syndrome, Trauma-related Wound, Trauma, Multiple, Chronic Pain Syndrome, Chronic Shoulder Pain
Interventions
SOMA pain manager smartphone application
Device
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional

Enhanced Assistance During Radiotherapy for Unmet Essential Needs

NCT06582849
View directory record Official record
Conditions
Bone Cancer, Brain Cancer, Colorectal Cancer, Esophagus Cancer, Lymphoma, Salivary Gland Cancer, Head and Neck Cancer, Liver Cancer, Ovarian Cancer, Pancreatic Cancer, Prostate Cancer, Small Intestine Cancer, Stomach Cancer, Urinary Bladder Cancer, Anal Cancer, Blood Cancer, Breast Cancer, Cervical Cancer, Lung Cancer, Kidney Cancer, Penile Cancer, Skin Cancer, Testicular Cancer, Thyroid Cancer, Uterine Cancer, Vaginal Cancer, Vulvar Cancer
Interventions
Standard assistance, Enhanced assistance
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Vaginal Microbiome Seeding and Health Outcomes in Cesarean-delivered Neonates.

NCT03298334
View directory record Official record
Conditions
Cesarean Delivery Affecting Newborn, Obesity, Childhood, Intestinal Microbiome, Microbiota, Host Microbial Interactions, Gastrointestinal Microbiome
Interventions
Vaginal Seeding, No Vaginal Seeding
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
0 Days to 50 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2029
U.S. locations
1
States / cities
Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Recruiting Not applicable Interventional

Association Between Health Care Provider (HCP)-Assessed ECOG Performance Status (PS) and Overall Survival, and Objectively Measure of Physical Activity (PA) Levels in Advance-cancer Patients"

NCT01365169
View directory record Official record
Conditions
Malignant Head and Neck Neoplasm, Malignant Neoplasm, Metastatic Malignant Neoplasm in the Neck, Metastatic Malignant Neoplasm in the Uterine Cervix, Pancreatic Adenocarcinoma, Pancreatic Neuroendocrine Carcinoma, Recurrent Colorectal Carcinoma, Stage I Colorectal Cancer AJCC v6 and v7, Stage I Hypopharyngeal Carcinoma AJCC v7, Stage I Major Salivary Gland Cancer AJCC v7, Stage I Nasopharyngeal Carcinoma AJCC v7, Stage I Oral Cavity Cancer AJCC v6 and v7, Stage I Oropharyngeal Carcinoma AJCC v6 and v7, Stage II Colorectal Cancer AJCC v7, Stage II Hypopharyngeal Carcinoma AJCC v6 and v7, Stage II Major Salivary Gland Cancer AJCC v7, Stage II Nasopharyngeal Carcinoma AJCC v7, Stage II Oral Cavity Cancer AJCC v6 and v7, Stage II Oropharyngeal Carcinoma AJCC v6 and v7, Stage IIA Colorectal Cancer AJCC v7, Stage IIB Colorectal Cancer AJCC v7, Stage IIC Colorectal Cancer AJCC v7, Stage III Colorectal Cancer AJCC v7, Stage III Hypopharyngeal Carcinoma AJCC v7, Stage III Laryngeal Cancer AJCC v6 and v7, Stage III Major Salivary Gland Cancer AJCC v7, Stage III Nasopharyngeal Carcinoma AJCC v7, Stage III Oral Cavity Cancer AJCC v6 and v7, Stage III Oropharyngeal Carcinoma AJCC v7, Stage IIIA Colorectal Cancer AJCC v7, Stage IIIB Colorectal Cancer AJCC v7, Stage IIIC Colorectal Cancer AJCC v7, Stage IV Colorectal Cancer AJCC v7, Stage IVA Colorectal Cancer AJCC v7, Stage IVA Hypopharyngeal Carcinoma AJCC v7, Stage IVA Laryngeal Cancer AJCC v7, Stage IVA Major Salivary Gland Cancer AJCC v7, Stage IVA Nasopharyngeal Carcinoma AJCC v7, Stage IVA Oral Cavity Cancer AJCC v6 and v7, Stage IVA Oropharyngeal Carcinoma AJCC v7, Stage IVB Colorectal Cancer AJCC v7, Stage IVB Hypopharyngeal Carcinoma AJCC v7, Stage IVB Laryngeal Cancer AJCC v7, Stage IVB Major Salivary Gland Cancer AJCC v7, Stage IVB Nasopharyngeal Carcinoma AJCC v7, Stage IVB Oral Cavity Cancer AJCC v6 and v7, Stage IVB Oropharyngeal Carcinoma AJCC v7, Metastatic or Locally Unresectable Solid Tumor
Interventions
Exercise Intervention, Health Telemonitoring, Quality-of-Life Assessment, Questionnaire Administration
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
590 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Influence of Honey-flavored Yogurt on Low-grade Inflammation and Gut Health in Middle to Older Aged Women.

NCT04248127
View directory record Official record
Conditions
Overweight
Interventions
Honey sweetened yogurt, Sugar sweetened yogurt
Other
Lead sponsor
University of California, Davis
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of a Mailed Educational Reminder on Fecal Occult Blood Testing (FOBT): A Randomized Controlled Trial

NCT00534053
View directory record Official record
Conditions
Colon Cancer
Interventions
Mailed Educational Reminder
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
50 Years to 100 Years
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Results available

A Sociolinguistic-enabled Web Application to Develop Precision Health Intervention for African Americans

NCT04705363
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High Dialectal, Low Dialectal, Non-Dialectal, Text-only
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
45 Years to 75 Years
Enrollment
751 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 17, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

mPATH-Cloud for Colorectal Cancer Screening

NCT06441487
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Mobile Health Decision Support, Usual care
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
45 Years to 73 Years
Enrollment
1,062 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A f-MRI Study Of Affective Changes Associated With Four Weeks Consumption Of A Fermented Dairy Product In Healthy Women

NCT01398163
View directory record Official record
Conditions
Healthy Adult Women
Interventions
1-Fermented Dairy Product (test), 2-Milk-based non-fermented dairy product(control)
Other
Lead sponsor
Danone Global Research & Innovation Center
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 24, 2016 · Synced Jul 21, 2026, 12:27 PM EDT
Recruiting Not applicable Interventional

Building Connections

NCT07091032
View directory record Official record
Conditions
Cancer Colorectal, Cancer Cervix, Depression, Anxiety, Obesity
Interventions
Treatment as Usual, Building Connections Intervention
Other · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
3,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Faith Moves Mountains: A Community Based Participatory Research (CBPR) Appalachian Wellness & Cancer Prevention Program

NCT01373320
View directory record Official record
Conditions
Lung Cancer, Cervical Cancer, Breast Cancer, Colorectal Cancer
Interventions
Lay health advisor interactions
Behavioral
Lead sponsor
Nancy Schoenberg
Other
Eligibility
18 Years and older
Enrollment
1,415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Whitesburg, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional

Systems of Support (SOS) to Increase Colon Cancer Screening and Follow-up

NCT00697047
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Automated Mailing, Automated Mailing Plus Assisted, Auto Plus Assisted Plus Navigation
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
50 Years to 73 Years
Enrollment
4,653 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 2, 2020 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Building Engagement Using Financial Incentives Trial - Colorectal Cancer Screening

NCT06124131
View directory record Official record
Conditions
Health Behavior, Colorectal Cancer, Influenza, COVID-19, Vaccine Hesitancy, Vaccine-Preventable Diseases, Healthcare Patient Acceptance
Interventions
Financial incentive for colorectal cancer screening, Financial incentive for flu shot, Financial incentive for COVID-19 shot
Behavioral
Lead sponsor
Tulane University
Other
Eligibility
45 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Jul 21, 2026, 12:27 PM EDT
Completed No phase listed Observational

Mesalamine and Reproductive Health Study

NCT01331551
View directory record Official record
Conditions
Colitis Ulcerative, Crohn Disease
Interventions
Not listed
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Jul 21, 2026, 12:27 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Snacks and Brain Health

NCT07348406
View directory record Official record
Conditions
Cognitive Assessment, Psychological Function, GI Health
Interventions
Pecan snack, Pretzel snack
Biological
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
50 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Almonds: Digestive Health and Immune Function of Adults and Children

NCT01973595
View directory record Official record
Conditions
Healthy
Interventions
Almonds, Then no almonds, No Almonds, Then almonds
Dietary Supplement · Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 40 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Jul 21, 2026, 12:27 PM EDT
Withdrawn Not applicable Interventional

A Crohn's Disease Diet to Reduce Symptoms of Crohn's Disease

NCT01897090
View directory record Official record
Conditions
Crohn's Disease
Interventions
Elimination Diet, Dietary Guidelines for Americans
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Jul 21, 2026, 12:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Scaling CRC Screening Through Outreach, Referral, and Engagement (SCORE)

NCT04406714
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Trial Mailed FIT Intervention - Age Group 50-75, Sub-Study Mailed FIT Intervention Enhanced Envelope - Age Group 45-49, Sub-Study Mailed FIT Active Comparator Plain Envelope - Age Group 45-49
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
45 Years to 75 Years
Enrollment
4,318 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
Ahoskie, North Carolina • Hendersonville, North Carolina
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Not yet recruiting Not applicable Interventional

Medically Tailored Meals to Reduce Ultra-processed Food Intake in Colorectal Cancer Survivors

NCT07701707
View directory record Official record
Conditions
Colorectal Cancer (Diagnosis)
Interventions
MTM: Medically tailored meals, MTM plus Fresh Produce, Control group
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

HomeStyles-Adults of Chinese Heritage

NCT06136793
View directory record Official record
Conditions
Healthy Lifestyle, Home Environment Related Disease, Cardiometabolic Disease, Systemic Inflammatory Response, Health Behavior, Dietary Habits, Physical Inactivity, Self Efficacy, Gut Microbiota, Diabetes Mellitus
Interventions
HomeStyles-China
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
30 Years to 70 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Not yet recruiting Not applicable Interventional

A Well-Being Intervention for People With IBS

NCT07600047
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Well-Being Intervention
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 21, 2026, 12:27 PM EDT
Not yet recruiting Not applicable Interventional

The Effects of Mango on Gut Health Markers

NCT07559604
View directory record Official record
Conditions
Gut Health, LBP, Short Chain Fatty Acids, sCD14
Interventions
Mango
Behavioral
Lead sponsor
Loma Linda University
Other
Eligibility
40 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Jul 21, 2026, 12:27 PM EDT