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ClinicalTrials.gov public records Last synced Sep 19, 2026, 1:25 PM EDT

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Showing 1–24 of 41 matching trials from the live ClinicalTrials.gov search.
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Conditions
Periodontal Disease, Atherosclerosis
Interventions
Not listed
Lead sponsor
San Diego State University
Other
Eligibility
21 Years to 40 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Valley Center, California
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
Conditions
Autism Spectrum Disorder, Gastro-Intestinal Disorder, Constipation, Diarrhea
Interventions
MTP-101P, Vancomycin, Miralax, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
4 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tempe, Arizona
Conditions
Adults With Ulcerative Colitis
Interventions
PRIM-DJ2727, Placebos
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Conditions
Heart Failure, Systolic, Heart Failure, Diastolic, Peripheral Arterial Disease, Overweight and Obesity
Interventions
Not listed
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
70 participants
Timeline
2023 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Mouthwashes on Oral Wound Healing and Microbiome

NCT05270382
Conditions
Wound Heal, Oral Microbiome
Interventions
cetylpyridinium chloride
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Clostridium Difficile Infection Recurrence
Interventions
Bacillus velezensis DSM 33864, Placebo
Dietary Supplement
Lead sponsor
Novozymes A/S
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Royal Oak, Michigan
Conditions
Obesity
Interventions
Vancomycin, Placebo oral tablet, Overfeeding diet (OF), Underfeeding diet (UF)
Drug · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Conditions
Low-grade Oral Dysplasia
Interventions
Probiotic oral lozenges, Standard of care for oral dysplasia
Biological · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Gastrointestinal Cancer, Pancreatic Cancer, Esophageal Cancer, Gastric Cancer, Rectal Cancer, Liver Cancer, Biliary Cancer
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
New York, New York
Conditions
Acute Graft-Versus-Host Disease (Gvhd) Grade, Hematopoietic Cell Transplantation, Fecal Microbiota Transplant
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Alcoholic Hepatitis
Interventions
Fecal Microbiota Transplantation, Placebo
Biological · Other
Lead sponsor
Prasun Kumar Jalal
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Houston, Texas
Conditions
Head and Neck Cancer
Interventions
1% Chlorhexidine Gluconate Gel, Surveys
Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Houston, Texas
Conditions
Active Ulcerative Colitis (UC)
Interventions
PRIM-DJ2727 - FROZEN, PRIM-DJ2727 - CAPSULES
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Conditions
Recurrent C. Difficile Infection
Interventions
CP101, Placebo
Biological · Other
Lead sponsor
Finch Research and Development LLC.
Industry
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
61
States / cities
Phoenix, Arizona • Mission Hills, California • Oakland, California + 51 more
Conditions
Primary Sclerosing Cholangitis
Interventions
oral vancomycin and oral amoxicillin
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 76 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Healthy Volunteers
Interventions
Cardiosyn
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Probiotic Water on Oral Health in Adults

NCT04473404
Conditions
Oral Bacteria, Halitosis
Interventions
Streptococcus salivarius DB-B5 - 2 billion CFU/day, Streptococcus salivarius DB-B5 - 10 billion CFU/day, Placebo
Dietary Supplement · Other
Lead sponsor
Dose Biosystems Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Fort Wayne, Indiana
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
FMP30 Donor Stool, Fecal Microbiota Transplantation (FMT) of FMP30 Donor Stool, Observational Control
Drug · Procedure · Other
Lead sponsor
Jeffrey Gelfand
Other
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
San Francisco, California
Conditions
Typhoid Vaccination
Interventions
Vivotif Typhoid Oral Vaccine
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Recruiting No phase listed Observational Accepts healthy volunteers

Microbiome in Aging of Gut and Brain

NCT07799402
Conditions
Mild Cognitive Impairment, Alzheimer Disease (AD), Dementia
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
1
States / cities
Tampa, Florida
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Effect of a Stannous Fluoride Toothpaste on the Oral Microbiome

NCT06048809
Conditions
Oral Health
Interventions
Stannous Fluoride Toothpaste (Sensodyne Repair and Protect), Regular Fluoride Toothpaste (Colgate Cavity Protection)
Other
Lead sponsor
HALEON
Industry
Eligibility
18 Years to 65 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Fort Wayne, Indiana
Conditions
Parkinson Disease
Interventions
PRIM-DJ2727, Placebo oral capsule
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
55 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Houston, Texas
Conditions
Alopecia Areata, Alopecia Totalis, Alopecia Universalis
Interventions
Vancomycin, Neomycin and MTT capsules, Placebo capsules
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota