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Showing 1–24 of 60 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 1Phase 2 Interventional

Acute Nicotine Gum and Tinnitus Loudness in Non-Smoking Adults

NCT07772089
View directory record Official record
Conditions
Tinnitus, Chronic Subjective Tinnitus
Interventions
Nicotine polacrilex gum 4 mg, Placebo gum
Drug · Other
Lead sponsor
San Diego State University
Other
Eligibility
18 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

The Effect of 2-DeNT Oral Topical Powder on Minor Recurrent Aphthous Ulcer

NCT02142543
View directory record Official record
Conditions
Minor Recurrent Aphthous Stomatitis Lesions
Interventions
2-DeNT powder, Placebo Comparator
Drug
Lead sponsor
Texas A&M University
Other
Eligibility
12 Years to 55 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 5, 2014 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sunfiber and the Microbiota

NCT03722862
View directory record Official record
Conditions
Diet Modification
Interventions
Low fiber, Placebo, High fiber
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
20 Years to 49 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 19, 2026, 1:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Caffeine Optimization Versus Standard Caffeine Dosage (2B-2)

NCT05588934
View directory record Official record
Conditions
Sleep Deprivation, Caffeine
Interventions
Caffeine Gum, Placebo Gum
Dietary Supplement · Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 39 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
2
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Bupropion Alone or Combined With Nicotine Gum

NCT01621022
View directory record Official record
Conditions
Tobacco Dependence
Interventions
bupropion + nicotine gum, Active bupropion-Placebo gum, Placebo bupropion-Placebo gum
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
608 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2002
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 5, 2016 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a Cranberry Beverage on Intestinal Permeability and Gastrointestinal Function in Generally Healthy Adults

NCT03957239
View directory record Official record
Conditions
Intestinal Permeability, Gastrointestinal Function
Interventions
Cranberry Beverage, Control Beverage
Other
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 50 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gum Acacia and Blood Glucose

NCT03716479
View directory record Official record
Conditions
Diet Modification
Interventions
Low Fiber, High Fiber, Placebo/Control
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 19, 2026, 1:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

4-day Plaque Accumulation Model Evaluating Compound Containing Gum

NCT06984744
View directory record Official record
Conditions
Dental Plaque Accumulation
Interventions
MIIP-E2 containing gum, placebo gum without MIIP-E2
Device
Lead sponsor
Lactea Therapeutics, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Sep 19, 2026, 1:45 PM EDT
Not listed Not applicable Interventional

Changes in Microbiota and Quality of Life in IBS

NCT05266287
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
a supplement containing 2'-fucosyllactose (2'-FL), Placebo Supplement
Dietary Supplement
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 19, 2026, 1:45 PM EDT
Terminated Phase 2 Interventional

Efficacy & Safety of RPh201 Treatment in Patients With Previous Nonarteritic Anterior Ischemic Optic Neuropathy (NAION)

NCT03547206
View directory record Official record
Conditions
Nonarteritic Anterior Ischemic Optic Neuropathy
Interventions
RPh201 Cohort A, Placebo Cohort A, RPh201 Cohort B, Placebo Cohort B
Drug · Other
Lead sponsor
Regenera Pharma Ltd
Industry
Eligibility
50 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
15
States / cities
Palo Alto, California • Pasadena, California • Orange, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2020 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Maintenance Treatment for Abstinent Smokers

NCT00063323
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Bupropion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 75 Years
Enrollment
589 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Phase 1 Interventional

Glycemic Effect of Diazoxide in NAFLD

NCT05729282
View directory record Official record
Conditions
Hyperinsulinemia, Insulin Resistance, Non-Alcoholic Fatty Liver Disease, Prediabetic State
Interventions
Diazoxide oral suspension, 1 mg per kg per dose, Diazoxide oral suspension, 2 mg per kg per dose, Placebo, FreeStyle Libre Pro, Deuterated water (2H2O/D2O)
Drug · Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Assessment of the Glyconutrient Ambrotose™ on Immunity, Gut Health, and Safety in Men and Women

NCT04386226
View directory record Official record
Conditions
Healthy
Interventions
Ambrotose LIFE, Advanced Ambrotose, Placebo
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
20 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Sep 19, 2026, 1:45 PM EDT
Withdrawn Phase 1Phase 2 Interventional

ACE2 Chewing Gum on SARS-CoV-2 Viral Load (COVID 19)

NCT05433181
View directory record Official record
Conditions
SARS-CoV-2
Interventions
ACE2 Chewing Gum, Placebo Chewing Gum
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Nicotine and Attention on Frequency Tuning in Auditory Cortex

NCT05018117
View directory record Official record
Conditions
Aging
Interventions
Nicotine gum, Placebo gum
Drug · Other
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 19, 2026, 1:45 PM EDT
Recruiting Phase 2 Interventional

Treatment of Radiation and Cisplatin Induced Toxicities with Tempol

NCT03480971
View directory record Official record
Conditions
Mucositis, Nephrotoxicity, Ototoxicity
Interventions
Tempol, Placebo Solution
Drug
Lead sponsor
Matrix Biomed, Inc.
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
9
States / cities
La Jolla, California • Merced, California • San Francisco, California + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2024 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Phase 3 Interventional Results available

A Study to Compare Sitavig (Acyclovir) Buccal Tablet With a Placebo in the Treatment of Herpes Labialis in Participants Whose Immune System Works Normally

NCT05098938
View directory record Official record
Conditions
Recurrent Herpes Labialis
Interventions
Acyclovir 50mg buccal/topical tablet, BAYM008894/UI1614773, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
2,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Culver City, California
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Real-Time Caffeine Optimization During Total Sleep Deprivation

NCT04399083
View directory record Official record
Conditions
Caffeine, Sleep Deprivation, Shift-Work Related Sleep Disturbance
Interventions
Caffeine
Dietary Supplement
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 39 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Sep 19, 2026, 1:45 PM EDT
Recruiting Phase 1 Interventional

Effect of Insulin Lowering on Lipogenesis

NCT07403604
View directory record Official record
Conditions
Hyperinsulinemia, Insulin Resistance, Non-Alcoholic Fatty Liver Disease, Prediabetic State, Obesity
Interventions
Placebo, Diazoxide Oral Suspension, 2 mg per kg per dose, Deuterated water (2H2O/D2O), 70%, Insulin Suppression Test (IST)
Drug · Diagnostic Test
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional

Dietary Fiber for Fecal Incontinence

NCT01738607
View directory record Official record
Conditions
Fecal Incontinence
Interventions
Psyllium, Gum Arabic, carboxymethylcellulose, Placebo
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 8, 2023 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional

Effect of Gum Arabic on Gastrointestinal Transit and Permeability

NCT03742076
View directory record Official record
Conditions
Diverticulitis
Interventions
High-dose prebiotic, Low-dose prebiotic, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 9, 2023 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabidiol Effects on Blood Alcohol Level and Intoxication

NCT06105138
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
200mg Cannabidiol oral solution, 30mg Cannabidiol oral solution, Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
21 Years to 60 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 22, 2024 · Synced Sep 19, 2026, 1:45 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Daily Oral Care Lozenge on Oral Health and Quality of Life in Older Adults

NCT03693027
View directory record Official record
Conditions
Oral Health
Interventions
PTx800 lozenges, Placebo control
Dietary Supplement
Lead sponsor
Primal Therapies Inc.
Industry
Eligibility
60 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 8, 2018 · Synced Sep 19, 2026, 1:45 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Tolerability of Antiplaque Chewing Gum in a Gingivitis Population

NCT01877421
View directory record Official record
Conditions
Plaque, Gingivitis
Interventions
2 mg KSL-W, 4 mg KSL-W, 6 mg KSL-W, 10 mg KSL-W, 20 mg KSL-W, 30 mg KSL-W, 50 mg KSL-W, 75 mg KSL-W, 100 mg KSL-W, Placebo
Drug · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 64 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Sep 19, 2026, 1:45 PM EDT