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ClinicalTrials.gov public records Last synced Sep 24, 2026, 7:45 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Conditions
Periodontitis
Interventions
SRP + MM, Scaling and Root Planing (SRP)
Procedure
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Morgantown, West Virginia
Conditions
Adult Nasal Type Extranodal NK/T-Cell Lymphoma, Adult T-Cell Leukemia/Lymphoma, Anaplastic Large Cell Lymphoma, Angioimmunoblastic T-Cell Lymphoma, B Lymphoblastic Leukemia/Lymphoma, Blastic Plasmacytoid Dendritic Cell Neoplasm, Burkitt Leukemia, Central Nervous System Lymphoma, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, Diffuse Large B-Cell Lymphoma, Enteropathy-Associated T-Cell Lymphoma, Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue, Grade 1 Follicular Lymphoma, Grade 2 Follicular Lymphoma, Grade 3 Follicular Lymphoma, Hepatosplenic T-Cell Lymphoma, Lymphoplasmacytic Lymphoma, Mantle Cell Lymphoma, Mediastinal (Thymic) Large B-Cell Lymphoma, Mycosis Fungoides, Nasal Type Extranodal NK/T-Cell Lymphoma, Nodal Marginal Zone Lymphoma, Peripheral T-Cell Lymphoma, Not Otherwise Specified, Post-Transplant Lymphoproliferative Disorder, Primary Cutaneous Anaplastic Large Cell Lymphoma, Primary Effusion Lymphoma, Sezary Syndrome, Splenic Marginal Zone Lymphoma, Subcutaneous Panniculitis-Like T-Cell Lymphoma, Systemic Anaplastic Large Cell Lymphoma, T Lymphoblastic Leukemia/Lymphoma, Transformed Recurrent Non-Hodgkin Lymphoma
Interventions
Laboratory Biomarker Analysis, Quality-of-Life Assessment, Questionnaire Administration, Salvia hispanica Seed
Other · Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
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
Uveitis
Interventions
Not listed
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
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, Breast Adenocarcinoma, Invasive Breast Carcinoma, 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, Triple-Negative Breast Carcinoma
Interventions
Microbiota-based Formulation RBX7455
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Jacksonville, Florida
Withdrawn No phase listed Observational Accepts healthy volunteers

Optimization of Collection Methods for Studies of the Human Microbiota

NCT03731702
Conditions
Microbial Composition
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 100 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Rockville, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

The Probiotic for Oral Health (PRO Health) Study

NCT03748017
Conditions
Oral Microbiome
Interventions
Placebo-Control Supplement, Streptococcus-Containing Probiotic Supplement
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
21 Years to 45 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Davis, California
Conditions
Oral Cavity Squamous Cell Carcinoma
Interventions
NisinZ® P, Surgery (non-interventional, standard of care)
Drug · Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
San Francisco, California
Conditions
Adenocarcinoma of the Prostate
Interventions
Cyclophosphamide, DRibble Vaccine, HPV Vaccinations, Imiquimod
Drug · Biological
Lead sponsor
UbiVac
Industry
Eligibility
Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Portland, Oregon
Completed No phase listed Observational Accepts healthy volunteers

The Oral Microbiome and Upper Aerodigestive Squamous Cell Cancer

NCT03304132
Conditions
Oral Cancer
Interventions
Classification of Oral Microbiome Using 16S rRNA gene sequence-based approach, Classification of Oral Microbiome Using taxonomic approach
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
40 Years to 92 Years
Enrollment
560 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2010
U.S. locations
1
States / cities
New York, New York
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
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
Completed Not applicable Interventional Accepts healthy volunteers Results available

Role of Oral and Intestinal Microbiota in Rheumatoid Arthritis (RA)

NCT01198509
Conditions
Rheumatoid Arthritis, Psoriatic Arthritis, Periodontal Disease
Interventions
doxycycline, vancomycin
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 70 Years
Enrollment
178 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
2
States / cities
New York, New York
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Mouthrinse on the Microbiome of the Oral Cavity and GI Tract

NCT05603650
Conditions
Oral Bacterial Infection, Oral Infection, Microbial Colonization, Viral Infection
Interventions
Lumineux Oral Essentials rinse, Listerine rinse
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Irvine, California
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
Microbiome, Cytokines, Plaque, Gingivitis, Gingival Bleeding
Interventions
Distilled Water, Marketed Comparator 1, Marketed Comparator 2, Prototype Rinse 1, Prototype Rinse 2
Other
Lead sponsor
Kenvue Brands LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Somerville, Massachusetts
Completed No phase listed Observational Accepts healthy volunteers

Biogeography of the Oral Microbiome

NCT05672953
Conditions
Oral Microbiome
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Bothell, Washington
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
Conditions
Acne Vulgaris, Acneiform Eruptions, Skin Diseases, Sebaceous Gland Diseases
Interventions
Probiotic, Oral herbal powder supplement
Other · Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
12 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sacramento, California
Terminated Phase 4 Interventional Results available

Azithromycin for Meibomian Gland Disease

NCT03953118
Conditions
Dry Eye, Neuropathic Eye Pain, Ocular Microbiome, Depression, Anxiety
Interventions
Azithromycin Oral Product, Placebo Oral
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Francisco, California
Completed No phase listed Observational

Gut Microbiome in Colorectal Cancer

NCT04054908
Conditions
Gastrointestinal Microbiome, Neoplasm, Colorectal
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
San Francisco, California
Conditions
Vaginal Odor
Interventions
Orally-administered probiotic, Placebo
Dietary Supplement
Lead sponsor
Bonafide Health
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Harrison, New York
Not listed Not applicable Interventional Accepts healthy volunteers

The Effects of an Oral Hair Supplement on Hair Density, Growth, and Microbiome

NCT06146166
Conditions
Hair Thinning
Interventions
Oral herbal supplement, Oral placebo supplement
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
25 Years to 65 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Sacramento, California
Conditions
Chronic Pancreatitis
Interventions
Palatable Elemental Diet
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Redwood City, California