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Showing 1–24 of 247 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Nicotine Replacement Therapy (NRT, nicotine patch) Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Bio-Behavioral Predictors of the Efficacy of Nicotine Replacement Therapy (NRT)

NCT00326781
View directory record Official record
Conditions
Smoking
Interventions
Nicoderm Transdermal Patch, Nicotine Nasal Spray
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
674 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 23, 2010 · Synced Sep 29, 2026, 10:40 PM EDT
Terminated Not applicable Interventional

Project QUIT+: Adapting and Testing a Smoking Cessation Intervention for Transgender and Gender Expansive Individuals

NCT06654414
View directory record Official record
Conditions
Smoking Cessation, Depression, Anxiety, Nicotine Dependence, Gender Minority Stress
Interventions
PRIDE QUIT, Enhanced Treatment As Usual (ETAU)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 1 Interventional

Texting to Promote Tobacco Abstinence in Emergency Department Smokers: A Pilot Study

NCT02081144
View directory record Official record
Conditions
Smoking, Tobacco Abstinence
Interventions
Smokefree TXT Program, nicotine replacement patches, Nicotine Replacement Gum, Faxed Referral CT Smokers Quitline
Other · Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Sep 29, 2026, 10:40 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Tailored Smoking Cessation Treatment for LIVE FOR LIFE® Participants

NCT01560507
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Dependence
Interventions
varenicline (Chantix), bupropion (Zyban), nicotine patches
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Durham, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 23, 2014 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study Evaluating The Safety And Efficacy Of Varenicline and Bupropion For Smoking Cessation In Subjects With And Without A History Of Psychiatric Disorders

NCT01456936
View directory record Official record
Conditions
Smoking Cessation
Interventions
Placebo, varenicline tartrate, bupropion hydrochloride, Nicotine Replacement Therapy Patch
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
8,144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
77
States / cities
Mobile, Alabama • Phoenix, Arizona • Encino, California + 61 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2016 · Synced Sep 29, 2026, 10:40 PM 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 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional Results available

Pharmacist Intervention to Improve Smoking Cessation

NCT06943287
View directory record Official record
Conditions
Smoking Cessation
Interventions
Pharmacist Intervention
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 100 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 29, 2026, 10:40 PM EDT
Withdrawn Not applicable Interventional

Developing and Pilot Testing a Remote Smoking Cessation Digital Therapeutic for Individuals With Serious Mental Illness

NCT05031416
View directory record Official record
Conditions
Smoking Cessation
Interventions
LTQ
Combination Product
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Sep 29, 2026, 10:40 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Catalyzing Cigarette Smoking Cessation Through Harm Reduction Sampling Among People Unmotivated to Quit

NCT07199517
View directory record Official record
Conditions
Cigarette Smoking, Tobacco Use, Cigarette Smoking Behavior
Interventions
HRP Sampling period, NPL Sampling period
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years and older
Enrollment
472 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 29, 2026, 10:40 PM 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 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional Results available

Smoking Cessation Using Motivational Therapy and Varenicline

NCT00701896
View directory record Official record
Conditions
Smoking, HIV Infections
Interventions
Varenicline tartrate, Nicotine Replacement Therapy, Biological Control, Motivational Interview
Drug · Other · Behavioral
Lead sponsor
Philip Diaz
Other
Eligibility
18 Years and older
Enrollment
294 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional

Contingency Management for Smoking Cessation in the Homeless

NCT01736982
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Contingency Management, Standard of Care
Behavioral · Other
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New Britain, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 15, 2018 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Enhancing Panic and Smoking Reduction Treatment With D-Cycloserine

NCT01944423
View directory record Official record
Conditions
Nicotine Addiction, Panic Attack
Interventions
d-cycloserine, Pill Placebo, Nicotine replacement therapy, Panic and Smoking Reduction Treatment
Drug · Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Sep 29, 2026, 10:40 PM EDT
Terminated Not applicable Interventional Results available

Analysis of Aldehyde Biomarkers of Exposure and Host Response

NCT00482690
View directory record Official record
Conditions
Smoking Cessation
Interventions
nicotine polacrilex, nicotine transdermal system, nicotine inhaler
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Sep 29, 2026, 10:40 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effect of Resistance Training on Tobacco-Related Cardiovascular Disease Risk

NCT01705951
View directory record Official record
Conditions
Smoking, Cardiovascular Disease Risk
Interventions
Resistance Training (RT), Nicotine Replacement Therapy (NRT)
Other · Biological
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 11, 2012 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 2 Interventional Results available

Do Treatments for Smoking Cessation Affect Alcohol Drinking? Study 1: Nicotine Replacement Therapy

NCT00699556
View directory record Official record
Conditions
Alcohol Drinking
Interventions
21mg transdermal nicotine patch (Nicoderm CQ), 1mg nicotine nasal spray, placebo nasal spray
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 11, 2018 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 4 Interventional Results available

Progesterone Augmentation of Nicotine Replacement Therapy Study

NCT02685072
View directory record Official record
Conditions
Smoking Cessation
Interventions
Progesterone (200 mgs BID), Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Highdose Nicotine Patch Therapy for Smokeless Tobacco Use

NCT00939029
View directory record Official record
Conditions
Smokeless Tobacco Use
Interventions
nicotine replacement therapy (nicotine patches), placebo NRT
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 55 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 18, 2014 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

End Nicotine Dependence Clinic

NCT03290430
View directory record Official record
Conditions
Smoking Cessation
Interventions
Group Counseling, Individual Counseling, Phone Counseling, Video Counseling, Texting support, Nicotine Replacement Therapy
Behavioral · Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 13, 2020 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional

Use of Technological Advances to Prevent Smoking Relapse Among Smokers With PTSD

NCT01990079
View directory record Official record
Conditions
PTSD, Smoking
Interventions
Bupropion, nicotine replacement therapy, Smoking cessation counseling, mobile contingency management, Stay Quit Coach
Drug · Other · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional

Effectiveness of an Enhanced Tobacco Intervention Protocol Compared to Standard Treatment in Helping Head and Neck and Lung Cancer Patients Starting Treatment to Reduce Cigarette Use

NCT04694846
View directory record Official record
Conditions
Lung Non-Small Cell Carcinoma, Head and Neck Squamous Cell Carcinoma
Interventions
Nicotine Replacement, Bupropion Hydrochloride Controlled-release, Varenicline, Tobacco Cessation Counseling, Questionnaire Administration, Quality of Life Assessment, Best Practice
Drug · Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 3 Interventional Results available

Providing Free Nicotine Patches to Quitline Smokers

NCT01736085
View directory record Official record
Conditions
Smoking Cessation
Interventions
Telephone counseling, Voucher, Nicotine patches
Behavioral · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
3,706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 18, 2020 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Not applicable Interventional

Durham Housing Authority (DHA) Community Health Advisor (CHA) Smoking Cessation Project

NCT04114526
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Replacement Therapy
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 11, 2020 · Synced Sep 29, 2026, 10:40 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Quit Smoking Study for People Who Use E-Cigarettes

NCT04946825
View directory record Official record
Conditions
Nicotine Addiction, E-Cig Use, Quitting Smoking
Interventions
Nicotine replacement therapy patch, Nicotine replacement therapy lozenge, Quit electronic cigarettes, Continue electronic cigarettes
Drug · Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 29 Years
Enrollment
396 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Sep 29, 2026, 10:40 PM EDT