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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Chewing gum Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Episodic Future Thinking and Future Thinking Priming for Smoking Cessation

NCT04297332
View directory record Official record
Conditions
Tobacco-Related Carcinoma
Interventions
Behavioral Intervention, Informational Intervention, Nicotine Replacement, Telephone-Based Intervention
Behavioral · Other · Drug
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cardiovascular Assessment of the Effects of Tobacco and Nicotine Delivery Products

NCT01964807
View directory record Official record
Conditions
Adverse Effect of Other Agents Primarily Affecting the Cardiovascular System, Initial Encounter
Interventions
Cigarette, NIDA test type with 16.6 mg nicotine, Cigarette, NIDA test type with <0.45 mg nicotine, Electronic cigarette with 18 mg/ml nicotine, Electronic Cigarette with no nicotine, Moist snuff, Sham Smoking, Secondhand cigarette smoke (SHS), Conditioned, filtered air, Sham Moist Snuff
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 26, 2021 · Synced Sep 23, 2026, 4:34 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

The Effect of Dexamethasone on Short Term Patient Response: IV vs Oral Administration

NCT07832110
View directory record Official record
Conditions
Post Operative Pain, Acute, Periodontitis
Interventions
Dexamethasone IV injection, Dexamethasone Capsule, Placebo IV administration, Placebo capsule
Drug · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 20, 2026 · Synced Sep 23, 2026, 4:34 PM 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 23, 2026, 4:34 PM EDT
Completed Phase 2 Interventional

Tobacco Treatment Optimization and Preferences During Concurrent Cancer Treatment

NCT04634071
View directory record Official record
Conditions
Smoking Cessation, Cancer, Treatment-Related
Interventions
Varenicline, Bupropion, Long-acting nicotine replacement therapy, Low-intensity counseling, High-intensity counseling, No nicotine replacement therapy, Nicotine Replacement Products
Drug · Behavioral · Other
Lead sponsor
Joseph Valentino, MD
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
3
States / cities
Bowling Green, Kentucky • Lexington, Kentucky • Owensboro, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional

Proactive Population Health Strategy to Offer Tobacco Dependence Treatment to Smokers

NCT03612895
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
Internal Care Coordination, External Community Referral, Usual Care
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional

Electronic Cigarettes as a Harm Reduction Strategy Among Patients With COPD

NCT04465318
View directory record Official record
Conditions
COPD
Interventions
E-cigarette (EC), Nicotine Replacement Therapy (NRT), Smoking Harm Reduction Counseling Sessions
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 75 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Enhanced Recovery at Cesarean Birth to Improve Postoperative Outcomes and Reduce Postoperative Length of Stay

NCT02956616
View directory record Official record
Conditions
Cesarean Section
Interventions
ketorolac, Chewing Gum, Enhanced Recovery Protocol
Drug · Other · Procedure
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional Results available

Babies Living Safe and Smokefree

NCT02602288
View directory record Official record
Conditions
Second Hand Tobacco Smoke, Nicotine Dependence
Interventions
Ask, Advise, Refer, Telebased tobacco counseling, Telebased nutrition counseling, Mobile phone smoking cessation application, Mobile phone nutrition application, Nicotine polacrilex
Behavioral · Device · Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years and older · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 14, 2022 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Maintaining Nonsmoking: Older Smokers - 1

NCT00086385
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine polacrilex, Bupropion
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
50 Years and older
Enrollment
403 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2015 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Adaptive Use of Nicotine Substitution to Maintain Smoking Reduction/Abstinence in Nicotine Responders

NCT06554873
View directory record Official record
Conditions
Smoking Cessation, Harm Reduction
Interventions
Nicoderm, Nicorette 4Mg Chewing Gum, Nicorette Lozenge Product, NJOY e-cigarette, on!
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Characterize the Nicotine Uptake and Subjective Effects With Use of JUUL Electronic Nicotine Delivery Systems

NCT04123041
View directory record Official record
Conditions
Electronic Cigarette Use, Tobacco Smoking
Interventions
JUUL ENDS, Combustible cigarette, comparator e-cigarette, Nicorette gum
Other
Lead sponsor
Juul Labs, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
2
States / cities
Kansas City, Kansas • Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Immediate Post-Operative Anesthesia With Either Lidocaine or Bupivacaine

NCT06293807
View directory record Official record
Conditions
Periodontal Diseases
Interventions
Xylocaine 2 % with 1:100,000 epinephrine, Bupivicaine 0.5% with 1:200,000 epinephrine, Placebo
Drug · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Abuse Liability of Very Low Nicotine (VLN) Mentholated Cigarettes

NCT03559725
View directory record Official record
Conditions
Tobacco Use
Interventions
VLN menthol cigarettes (A), Usual Brand Menthol Cigarettes (B), Nicotine gum (C)
Other · Drug
Lead sponsor
22nd Century Group, Inc.
Industry
Eligibility
22 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 24, 2020 · Synced Sep 23, 2026, 4:34 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Dissemination of a Tailored Tobacco Quitline for Rural Veteran Smokers

NCT01892813
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Use
Interventions
Nicotine replacement therapy - Transdermal nicotine patch, Nicotine replacement therapy - Nicotine gum, Nicotine replacement therapy - Nicotine lozenge, Bupropion, Varenicline, Combination pharmacotherapy - Transdermal nicotine patch + nicotine gum, Combination pharmacotherapy - Transdermal nicotine patch + nicotine lozenge, Combination pharmacotherapy - Transdermal nicotine patch + bupropion, Tobacco quitline referral, Tailored behavioral intervention, Alcohol use risk reduction, Behavioral activation for depressive symptoms, Behavioral management of postcessation weight gain
Drug · Behavioral
Lead sponsor
Mark Vander Weg
Other
Eligibility
18 Years to 99 Years
Enrollment
411 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Sep 23, 2026, 4:34 PM EDT
Completed No phase listed Observational

Oral and Swallowing Function in Older Adults

NCT06368830
View directory record Official record
Conditions
Oropharyngeal Dysphagia
Interventions
3-ounce water swallow test, Kayser-Jones Brief Oral Health Status Examination (BOHSE), Tongue pressure, Test of Masticating and Swallowing Solids (TOMASS), Respiratory function tests
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
60 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparative Split-Face Study of the Effects of a Retinol Alternative Cream on Improving Facial Skin Aging

NCT06125912
View directory record Official record
Conditions
Skin Aging
Interventions
Dime Beauty TBT Cream, Positive Control
Other
Lead sponsor
Dime Beauty Co.
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Sep 23, 2026, 4:34 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 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional

Evaluation of Cessation Preferences of Menthol Smoker

NCT02020005
View directory record Official record
Conditions
Smoking Cessation
Interventions
Non-flavored 2mg nicotine gum, Non-flavored 4mg nicotine gum, Mint-flavored 2mg nicotine gum, Mint-flavored 4mg nicotine gum, Non-flavored nicotine inhaler, Mint-flavored nicotine ihaler
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 23, 2026, 4:34 PM EDT
Completed Early Phase 1 Interventional

Phosphate Binding of Chitosan Chewing Gum in Patients With Chronic Kidney Disease (CKD)

NCT01341691
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
chewing gum
Other
Lead sponsor
Denver Nephrologists, P.C.
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 25, 2011 · Synced Sep 23, 2026, 4:34 PM 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 23, 2026, 4:34 PM 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 23, 2026, 4:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Salivary Flow Promoted by Sugar-Free Chewing Gum

NCT05447104
View directory record Official record
Conditions
Saliva Altered
Interventions
Mastication
Behavioral
Lead sponsor
Mars Wrigley
Industry
Eligibility
18 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Noblesville, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 6, 2022 · Synced Sep 23, 2026, 4:34 PM EDT
Recruiting Not applicable Interventional

Effects of Hard Gum Chewing on Facial Soft Tissue Morphology

NCT07726511
View directory record Official record
Conditions
Face
Interventions
Hard Gum Chewing
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
20 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 23, 2026, 4:34 PM EDT