Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:27 AM EDT

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Showing 49–57 of 57 matching trials from the live ClinicalTrials.gov search.
Conditions
Healthy Subject, Tobacco Use Disorder
Interventions
Laboratory Biomarker Analysis, Phytochemical, Placebo, Screening Questionnaire Administration
Other · Dietary Supplement
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
148 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Oral Microbiota, Long Term Sample Stability
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Changes in the Oral Microbiota
Interventions
Colostrum
Other
Lead sponsor
University of California, Davis
Other
Eligibility
12 Hours to 7 Days
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Sacramento, California
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
Basic Science, Intervention Studies, Biomarker Discovery
Interventions
Oral Lozenges (Tradename pHossident), Water additive (Tradename Protektin)
Dietary Supplement
Lead sponsor
Delta Dental of Minnesota Foundation
Other
Eligibility
18 Years to 80 Years
Enrollment
595 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
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
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
Clostridium Difficile Infection, Recurrent Clostridium Difficile Infection, C. Diff, CDI, Recurrent C. Diff, rCDI, C. Difficile, Recurrent CDI, FMT, Fecal Microbiota, Fecal Transplant
Interventions
CP101
Biological
Lead sponsor
Finch Research and Development LLC.
Industry
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
53
States / cities
Scottsdale, Arizona • Los Angeles, California • Murrieta, California + 47 more
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