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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:18 AM EDT

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Showing 337–360 of 1,028 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Cigarettes Clear all
Completed Not applicable Interventional

Effect of Cigarette Pack Warnings and Packaging Among Young Adult Smokers

NCT03446170
View directory record Official record
Conditions
Tobacco Use
Interventions
Graphic cigarette warning labels, plain packaging
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 30 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional

Smartphone-delivered Automated Video-assisted Smoking Treatment for People Living With HIV

NCT03082482
View directory record Official record
Conditions
Smoking Cessation
Interventions
Self-help materials, nicotine patch, Counseling, Smartphone-delivered automated treatment
Behavioral · Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Oct 20, 2026, 11:18 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Risk Perception Among Quitting Smokers

NCT00384696
View directory record Official record
Conditions
Smoking
Interventions
Nicotine Replacement Therapy, Questionnaire
Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 24, 2019 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of e-Cigarettes on Perceptions and Behavior - Remote Substudy # 1

NCT05958979
View directory record Official record
Conditions
Electronic Cigarette Use, Cigarette Smoking, Cigarette Use, Electronic, Vaping
Interventions
Control Marketing Strategies, Experimental Marketing Strategies
Other
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
601 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 25, 2023 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

An HIV Intervention for Black Men at Risk - The Enhanced Sexual Health Intervention for Men (ES-HIM)

NCT01641146
View directory record Official record
Conditions
HIV, Depression, Posttraumatic Stress Disorder
Interventions
Enhanced Sexual Health Intervention for Men (ES-HIM), Health Promotion (HP) Comparison Arm
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older · Male only
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
4
States / cities
Inglewood, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 28, 2016 · Synced Oct 20, 2026, 11:18 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Role of Flavor in the Substitutability of E-cigarettes for Combustible Cigarettes Among Persistent Smokers

NCT06264154
View directory record Official record
Conditions
Smoking, Tobacco Use, Cigarette Smoking, E-Cig Use
Interventions
E-cigarettes
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GABA (Gamma Amino Butyric Acid) Medication for Tobacco

NCT00644137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
pregabalin, cigarettes
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 2, 2020 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COPD E-cigarette Topography Training

NCT05510154
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Tobacco Smoking
Interventions
Brief advice, Single Training, Training to Competency
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 20, 2026, 11:18 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

DECAMP-2: Screening of Patients With Early Stage Lung Cancer or at High Risk for Developing Lung Cancer

NCT02504697
View directory record Official record
Conditions
Pulmonary Disease
Interventions
Biosamples from airway and blood
Other
Lead sponsor
Boston University
Other
Eligibility
50 Years to 79 Years
Enrollment
665 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2027
U.S. locations
15
States / cities
Los Angeles, California • San Diego, California • Denver, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sex Differences in E-Cigarette Perception

NCT07398976
View directory record Official record
Conditions
Nicotine Dependence, E-cigarette Use
Interventions
Nicotine Level 1 (0mg/ml), Nicotine Level 2 (36mg/ml), Nicotine Level 3 (59mg/ml)
Other
Lead sponsor
Yale University
Other
Eligibility
21 Years to 44 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Are Smokers Switching to Vaping at Lower Risk for Cancer? (Electronic Cigarettes and Cancer Risk)

NCT03750825
View directory record Official record
Conditions
Cigarette Smoking
Interventions
NIDA Standard Research E-cigarette (SREC)
Device
Lead sponsor
University of Southern California
Other
Eligibility
22 Years to 55 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201301: Study to Assess Elements of Abuse Liability for Four P13 Nicotine Pouches

NCT05294497
View directory record Official record
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
Product A, Product B, Product C, Product D, Product N, Product E
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Lexington, Kentucky • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Oct 20, 2026, 11:18 AM EDT
Terminated Phase 1 Interventional

Study of Injectable Naltrexone and Oral Bupropion Among Cigarette Smokers With Schizophrenia

NCT06374290
View directory record Official record
Conditions
Smoking Cessation
Interventions
Naltrexone (Vivitrol), Bupropion
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Electronic Cigarette Settings and Liquid Concentrations in Cigarette Smokers and Electronic Cigarette Users

NCT03710590
View directory record Official record
Conditions
Electronic Cigarettes
Interventions
ECIG Lab Session 15 watts, 10 mg nicotine, ECIG Lab Session 15 watts, 15 mg nicotine, ECIG Lab Session 15 watts, 30 mg nicotine, ECIG Lab Session 30 watts, 10 mg nicotine, ECIG Lab Session 30 watts, 15 mg nicotine, ECIG Lab Session 30 watts, 30 mg nicotine
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Establishing the Effect of Flavor on the Addictive Potential of Electronic Cigarettes

NCT03905928
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Nicotine Containing ECIG with tobacco flavor, Nicotine Containing ECIG with Strawberry Vanilla Flavor, Placebo ECIG with Tobacco Flavor, Placebo ECIG with Strawberry Vanilla Flavor
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 60 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 22, 2025 · Synced Oct 20, 2026, 11:18 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Young Adults and Low Nicotine Cigarettes

NCT03699865
View directory record Official record
Conditions
Smoking
Interventions
Nicotine content
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years to 29 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 20, 2026, 11:18 AM EDT
Terminated Phase 1 Interventional

Tolerability of Cannabis in Patients Receiving Concurrent Chemoradiation for Glioblastoma

NCT03246113
View directory record Official record
Conditions
Glioblastoma
Interventions
Cannabis, Temozolomide, Radiation Therapy
Drug · Radiation
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of "Plan A"

NCT03238313
View directory record Official record
Conditions
Teen Pregnancy Prevention
Interventions
Plan A, Toxic Life Cycle of a Cigarette
Behavioral
Lead sponsor
The Policy & Research Group
Other
Eligibility
18 Years to 19 Years · Female only
Enrollment
1,770 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Multiple Locations, California
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Assessing the Effect of Nicotine Reduction on ENDS User's Addiction and Exposures

NCT05205382
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
5% nicotine (Partial Nicotine Reduction), 3% or 2.4% nicotine (Partial Nicotine Reduction), 5% nicotine (Total Nicotine Reduction), 0% nicotine (Total Nicotine Reduction)
Other
Lead sponsor
Florida International University
Other
Eligibility
21 Years to 35 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Terminated Not applicable Interventional

The Pittsburgh Vitamin D Study: Vitamin D Supplementation in Vitamin D-deficient Subjects at Risk of Lung Cancer

NCT02532062
View directory record Official record
Conditions
Deficiency of Vitamin D3, COPD
Interventions
Cholecalciferol, multivitamin, Placebo
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
50 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pilot Study to Evaluate the Efficacy and Safety of Ariva® Silver Wintergreen in Healthy Smokers

NCT01337817
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
Ariva Silver Wintergreen, Ariva Wintergreen
Other
Lead sponsor
Star Scientific, Inc
Industry
Eligibility
23 Years to 72 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Martinsburg, West Virginia
Source: ClinicalTrials.gov public record
Updated Oct 24, 2014 · Synced Oct 20, 2026, 11:18 AM EDT
Recruiting Not applicable Interventional

A Novel Dialectical Behavior Therapy Brief Group Intervention for Cigarette Smoking by Patients With Cancer: An Open Clinical Trial

NCT07119489
View directory record Official record
Conditions
Smoking Behavior
Interventions
Dialectical Behavior Therapy -Skill Training brief intervention
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Charlotte, North Carolina • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of E-Liquid Flavor on Respiratory Symptoms in People Using Electronic Nicotine Delivery Systems

NCT05423340
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
E-cigarette Flavor, Tobacco Free Nicotine Pouch
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
163 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 20, 2026, 11:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Insular Inhibitory Neuromodulation to Reduce Cigarette Craving and Alter Brain Function in Smokers

NCT02590640
View directory record Official record
Conditions
Smoking
Interventions
Repetitive transcranial magnetic stimulation, MagStim Rapid2, Sham repetitive transcranial magnetic stimulation
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Oct 20, 2026, 11:18 AM EDT