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Showing 1–24 of 324 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Chewing gum Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Contingency Management for Smoking Cessation in Homeless Smokers

NCT01789710
View directory record Official record
Conditions
Smoking, Homeless Persons
Interventions
Bupropion, Nicotine replacement therapy, Contingency Management
Drug · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine Uptake, Measures of Abuse Liability, and Puffing Topography With Use of RELX ENDS Products by Smokers

NCT04640285
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, Usual Brand Cigarette, Nicorette White Ice Mint nicotine polacrilex gum
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 59 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Contingency Management for Smoking Cessation

NCT04881630
View directory record Official record
Conditions
Smoking Cessation
Interventions
Automated Mobile Contingency Management (CM), Standard Care (SC)
Behavioral · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
532 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional

Novel PAradigm to Improve Inflammatory Burden in ESRD (rePAIR): A Pilot and Feasibility Randomized Controlled Trial

NCT03241511
View directory record Official record
Conditions
Chronic Periodontitis, End Stage Renal Disease
Interventions
Test
Other
Lead sponsor
UConn Health
Other
Eligibility
21 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 3, 2026, 6:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Testing an MBI for Smoking Cessation and Alcohol Use Among Cancer Survivors

NCT07447635
View directory record Official record
Conditions
Smoking Cessation, Alcohol Use
Interventions
Mindfulness-Based Relapse Prevention for Smoking and Alcohol (MBRP-SA), Quitline Support
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Recruiting Not applicable Interventional

Frequent Standardized Oral Care Using Human Milk in the Neonatal Intensive Care Unit

NCT06000761
View directory record Official record
Conditions
Ventilator Associated Pneumonia, Bronchopulmonary Dysplasia, Respiratory Disease
Interventions
Standardized oral Care
Procedure
Lead sponsor
University of Florida
Other
Eligibility
1 Hour to 3 Days
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Nicotine Pouch Pharmacokinetics Abuse Liability

NCT07476144
View directory record Official record
Conditions
Smoking Behaviors
Interventions
Participants will place the pouch between their top lip and their gum for 30 minutes as per use instructions.
Drug
Lead sponsor
JT International SA
Industry
Eligibility
22 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
2
States / cities
Knoxville, Tennessee • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Not yet recruiting Not applicable Interventional

Impact of an Arginine-containing Toothpaste on the Subgingival Microbiota in Patients in Supportive Periodontal Care

NCT07755800
View directory record Official record
Conditions
Gum Disease
Interventions
Arginine Toothpaste, Fluoride Toothpaste
Device
Lead sponsor
Sukirth M Ganesan, BDS, PhD
Other
Eligibility
18 Years to 95 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional

Development of a Tailored Smoking Cessation Program for Individuals With HIV Infection in Washington, D.C.

NCT04594109
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Tailored behavioral counseling, Standard of Care
Behavioral
Lead sponsor
Colorado State University
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Sep 3, 2026, 6:40 AM EDT
Recruiting Not applicable Interventional

High-Resolution PET-CT Imaging for Surgical Margin Visualization

NCT06915454
View directory record Official record
Conditions
Cancer, Solid Malignant Tumors, SCC - Squamous Cell Carcinoma, HNSCC, HNSCC,Larynx, Pharynx and Oral Cavity
Interventions
Intra-op PET/CT Specimen Scanner
Device
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Post-operative Sore Throat and Gum Chewing

NCT04859101
View directory record Official record
Conditions
Anesthesia, Surgery
Interventions
Gum, Control
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 12, 2022 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201001: Study to Assess Elements of Abuse Liability for Three Nicotine Pouches

NCT05129657
View directory record Official record
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
Product A, Product B, Product C, Product D, Product N
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Raleigh, North Carolina • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 29, 2024 · Synced Sep 3, 2026, 6:40 AM 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 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional

A Single Group Study to Evaluate the Efficacy of a Cosmetic Product Line on Acne Symptoms

NCT06122467
View directory record Official record
Conditions
Acne
Interventions
EQ Exfoliating Cleanser, EQ Gel, EQ Moisturizer
Other
Lead sponsor
Menning Labs
Industry
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional

A Systematic Oral Care Program in Post-Mechanically Ventilated, Post-Intensive Care Patients

NCT03886623
View directory record Official record
Conditions
Methicillin-resistant Staphylococcus Aureus, Methicillin-Sensitive Staphylococcus Aureus Infection
Interventions
4-day systematic oral hygiene, Standard of Care oral care
Procedure · Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced Sep 3, 2026, 6:40 AM EDT
Not yet recruiting Phase 3 Interventional

Orthodontic Pain Alleviation With Chewing Gum

NCT07210697
View directory record Official record
Conditions
Orthodontic Appliances
Interventions
Xylitol Gum
Drug
Lead sponsor
West Virginia University
Other
Eligibility
Up to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Nicotine Plasma Concentrations and Subjective Effects for Three Electronic Cigarettes vs Combustible Cigarettes and Nicotine Gum

NCT02269514
View directory record Official record
Conditions
Smoking
Interventions
Own Brand Cigarette, Electronic Cigarette #1, Electronic Cigarette #2, Electronic Cigarette #3, Leading U.S. Nicotine Gum
Other
Lead sponsor
R.J. Reynolds Vapor Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 3, 2018 · Synced Sep 3, 2026, 6:40 AM EDT
Recruiting Not applicable Interventional

E-cigarettes for Harm Reduction Among Smokers With Serious Mental Illness

NCT05815199
View directory record Official record
Conditions
Cigarette Smoking
Interventions
E-cigarette (EC), Nicotine Replacement Therapy (NRT), Harm-Reduction Counseling, Ecological Momentary Intervention (EMI) Text Messaging
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smoking Cessation in Women With Gynecological Conditions

NCT01989923
View directory record Official record
Conditions
Cervical Dysplasia
Interventions
Nicotine Replacement Therapy, Electronic Cigarettes
Other · Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Star Matrix vs Autogenous Graft for Gingival Augmentation: Split-Mouth RCT

NCT07440303
View directory record Official record
Conditions
Lack of Keratinized Gingiva, Mucogingival Deformity - Insufficient Keratinized Tissue
Interventions
Starmatrix collagen membrane, Autogenous gingival graft
Device · Other
Lead sponsor
Harvard Medical School (HMS and HSDM)
Other
Eligibility
20 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Assess Repeated Doses of INDV-2000 in Healthy Volunteers and in Treatment Seeking Individuals With Opioid Use Disorder

NCT04976855
View directory record Official record
Conditions
Healthy Volunteer, Opioid-use Disorder
Interventions
INDV-2000, Placebo, SUBOXONE® sublingual film
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • DeSoto, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Assess the Ingestion of Dentifrice by Children

NCT02409836
View directory record Official record
Conditions
Healthy Individuals
Interventions
Marketed Dentifrice, Marketed Flavored Dentifrice
Drug
Lead sponsor
Procter and Gamble
Industry
Eligibility
2 Years to 12 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1993
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Gum Infection on Heart Disease

NCT00093236
View directory record Official record
Conditions
Cardiovascular Disease, Periodontal Disease
Interventions
Early Periodontal Treatment, Usual Dental Hygiene
Procedure
Lead sponsor
Boston University
Other
Eligibility
20 Years and older
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Sep 3, 2026, 6:40 AM EDT
Completed Not applicable Interventional Results available

Quit For Life (QFL): Smoking Cessation Among Chinese Smokers Living With HIV

NCT05020899
View directory record Official record
Conditions
Smoking Cessation, HIV Infections
Interventions
Sessions with a trained counselor, Cell phone messages, Offered nicotine replacement therapy, Self-help guide for quitting smoking
Behavioral · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Sep 3, 2026, 6:40 AM EDT