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Showing 1–24 of 271 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Microbiome Therapeutic Clear all
Completed Not applicable Interventional

Clinical Trial to Assess the Effects of Topical Lotions on Changes in the Skin Microbiome and Associations With Itch

NCT03673059
View directory record Official record
Conditions
Microbiota
Interventions
OTC Eczema Moisturizer Regimen, Cosmetic Moisturizer Regimen
Drug · Other
Lead sponsor
Johnson & Johnson Consumer Products Company Division of Johnson & Johnson Consumer Companies, Inc.
Industry
Eligibility
16 Years to 50 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Colorado Springs, Colorado • Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2018 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Comparing Sarecycline and Doxycycline Effects on the Skin and Gut Bacteria in Acne.

NCT07544251
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Sarecycline, Doxycycline
Drug
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
9 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional

A Pilot Study Examining Diet in Primary Sclerosing Cholangitis

NCT04678219
View directory record Official record
Conditions
Primary Sclerosing Cholangitis
Interventions
Dietary Intervention
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional

Optimizing Overactive Bladder Treatment

NCT03904407
View directory record Official record
Conditions
Overactive Bladder
Interventions
Lactobacillus Probiotic Capsule, Matching Lactobacillus Probiotic Placebo Capsule
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
Hillsborough, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated May 10, 2020 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting Phase 1Phase 2 Interventional

Fecal Microbiota Transplantation for Chronic Granulomatous Disease-Associated Colitis

NCT05333471
View directory record Official record
Conditions
Chronic Granulomatous Disease-associated Colitis
Interventions
MTP 101-LF
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
10 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional

Vaginal Care System for Menopausal Women With Urinary Tract Infections

NCT05573334
View directory record Official record
Conditions
Urinary Tract Infections, Vaginal Flora Imbalance
Interventions
BioNourish
Device
Lead sponsor
Vaginal Biome Science
Other
Eligibility
Up to 89 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Persea Americana for Total Health (PATH)-2

NCT05941728
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Avocado, Oil + Fiber, Average American Diet
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
25 Years to 74 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 12, 2023 · Synced Sep 9, 2026, 3:45 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Correlation Between Gut Microbiome-host Interaction and Ventricular Arrhythmias.

NCT04447365
View directory record Official record
Conditions
Gut Microbiome
Interventions
device interrogation
Diagnostic Test
Lead sponsor
North Florida Foundation for Research and Education
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 16, 2021 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available

Psoriasis Microbiome and Phototherapy

NCT02552316
View directory record Official record
Conditions
Psoriasis
Interventions
NB-UVB Phototherapy
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting Phase 2 Interventional

Combined Oral Contraceptive Pill and Resistance Starch

NCT06852365
View directory record Official record
Conditions
Metabolic Syndrome, Polycystic Ovary Syndrome
Interventions
wheat dextrin, Oral Contraceptives, Low-Dose, Maltodextrin
Dietary Supplement · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Traumatic Brain Injury and the Gut Microbiome

NCT04949607
View directory record Official record
Conditions
Brain Injury, Chronic, Brain Injuries, Traumatic
Interventions
Inulin fructooligosaccharide
Dietary Supplement
Lead sponsor
Centre for Neuro Skills
Industry
Eligibility
18 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bakersfield, California
Source: ClinicalTrials.gov public record
Updated Jul 19, 2022 · Synced Sep 9, 2026, 3:45 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of a Virtually Supervised Exercise Intervention and Group Counseling on Inflammation and the Microbiome of Smokers at High Risk for Lung Cancer, BE FIT Trial

NCT06445192
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Best Practice, Biospecimen Collection, Exercise Counseling, Exercise Intervention, Medical Device Usage and Evaluation, Physical Performance Testing, Questionnaire Administration, Telemedicine
Other · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
40 Years to 80 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Assessing the Endometrial Environment in Recurrent Pregnancy Loss and Unexplained Infertility

NCT03401918
View directory record Official record
Conditions
Recurrent Pregnancy Loss, Unexplained Infertility
Interventions
Uterine ERA and microbiome testing, Oral antibiotics and vaginal probiotics
Diagnostic Test · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 9, 2026, 3:45 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

The Role of Gut Microbiome in Predicting Comorbidities and Complications in Children With Inflammatory Bowel Disease

NCT05652491
View directory record Official record
Conditions
Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 20 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Bethesda, Maryland • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated May 31, 2023 · Synced Sep 9, 2026, 3:45 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Gut Microbiome Response to Long-Haul Travel in Elite Football Players

NCT07585474
View directory record Official record
Conditions
Microbial Composition, Immune Function
Interventions
Probiotic Capsule, Placebo
Drug
Lead sponsor
Sheffield Hallam University
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional

Prebiotic vs Probiotic in Multiple Sclerosis

NCT04038541
View directory record Official record
Conditions
Multiple Sclerosis, Clinically Isolated Syndrome (CIS)
Interventions
Prebiotics (Prebiotin Prebiotic Fiber Stick Pac), Probiotics (Visbiome®)
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
New York, New York • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting Phase 4 Interventional

Clinical, Imaging, and Endoscopic Outcomes of Children Newly Diagnosed With Crohn's Disease

NCT05781152
View directory record Official record
Conditions
Crohn Disease
Interventions
Anti-TNF therapy
Drug
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
6 Years to 17 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pulse Biomarker Discovery

NCT04887584
View directory record Official record
Conditions
Body Weight
Interventions
Control diet, Low Pulse diet, High Pulse diet
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 9, 2026, 3:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fecal Microbiota Transplantation (FMT) in Multiple Sclerosis

NCT03975413
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Fecal Microbiota Transplantation (FMT)
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting No phase listed Observational

Using Microbiome to Predict Durvalumab Toxicity in Post- Concurrent Chemoradiation Therapy (CCRT) NSCLC Patients

NCT04680377
View directory record Official record
Conditions
NSCLC, Stage III, Locally Advanced Lung Carcinoma
Interventions
Not listed
Lead sponsor
Jun Zhang, MD, PhD
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
2
States / cities
Kansas City, Kansas • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Sep 9, 2026, 3:45 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Personalized Responses to Dietary Composition Trial 3

NCT04735835
View directory record Official record
Conditions
Diabetes, Heart Diseases, Diet Habit, Diet Modification, Healthy, Obesity, Metabolism, Microbial Colonization
Interventions
Dietary Intervention
Other
Lead sponsor
Zoe Global Limited
Other
Eligibility
18 Years and older
Enrollment
250,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Sep 9, 2026, 3:45 AM EDT
Enrolling by invitation Phase 1 Interventional

Fecal Microbiome Transplant

NCT02636517
View directory record Official record
Conditions
Clostridium Difficile, Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
Judith Kelsen
Other
Eligibility
3 Years to 21 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 9, 2026, 3:45 AM EDT
Completed Phase 2 Interventional Results available

NBT-NM108 as an Early Treatment for Suspected or Confirmed Symptomatic COVID-19 Patients

NCT04540406
View directory record Official record
Conditions
Suspected or Confirmed COVID-19
Interventions
NBT-NM108, Usual Care Only
Drug · Other
Lead sponsor
Notitia Biotechnologies Company
Industry
Eligibility
18 Years to 79 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 9, 2026, 3:45 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Intestinal Microbiome Composition in Infants With Biliary Atresia (BA)

NCT03890536
View directory record Official record
Conditions
Biliary Atresia, Intrahepatic Cholestases, Normal Controls
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Day to 2 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2032
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Sep 9, 2026, 3:45 AM EDT