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ClinicalTrials.gov public records Last synced Oct 4, 2026, 10:13 PM EDT

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Showing 25–48 of 55 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: usual brand smoking Clear all
Completed Not applicable Interventional Results available

Pharmacokinetic and Subjective Effects of Heated Tobacco Products

NCT06356610
View directory record Official record
Conditions
Tobacco Use
Interventions
Product A, Product B, Product C, Product D, Product E, Product F
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
3
States / cities
Lexington, Kentucky • Springfield, Missouri • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addiction and Behavior Related to Menthol Cigarette Substitutes

NCT04844762
View directory record Official record
Conditions
Smoking (Tobacco) Addiction
Interventions
Menthol cigarettes substitutes, Usual brand menthol cigarettes and substitutes, Menthol cigarettes substitutes and menthol cigarettes
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 9, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of e-Cigarettes on Perceptions and Behavior

NCT03742817
View directory record Official record
Conditions
Electronic Cigarettes
Interventions
e-Cigarette
Other
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Oct 4, 2026, 10:13 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Nicotine Withdrawal and Reward Processing: Connecting Neurobiology to Real-world Behavior

NCT03840694
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Withdrawal
Interventions
Smoking Abstinence, Ad Lib Smoking
Other
Lead sponsor
Duke University
Other
Eligibility
21 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 20, 2021 · Synced Oct 4, 2026, 10:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cardiovascular Disease Biomarkers in Smokers and Moist Snuff Consumers

NCT01692353
View directory record Official record
Conditions
Cardiovascular Disease, Cigarette Smoking
Interventions
Subject's usual brand (UB) tobacco product
Other
Lead sponsor
R.J. Reynolds Tobacco Company
Industry
Eligibility
26 Years to 49 Years · Male only
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 17, 2016 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Very Low Nicotine Content Cigarettes and E-Cigarettes in Promoting Smoking Cessation in Daily and Intermittent Cigarette Smokers

NCT02964182
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, Tobacco-Related Carcinoma
Interventions
Cigarette, Nicotine Replacement, Questionnaire Administration, Survey Administration, Very Low Nicotine Content Cigarette, ECIG-Hi, ECIG-Lo
Drug · Other · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years to 65 Years
Enrollment
213 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Post-Market Surveillance of Tobacco Products

NCT04255459
View directory record Official record
Conditions
Smoking, Tobacco, Smoking Behaviors
Interventions
Moist Snuff, Camel Snus, Cigarettes, No tobacco usage
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
19 Years and older
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
6
States / cities
DeLand, Florida • Miramar, Florida • Stockbridge, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exploratory Study of Switching From Combustible Cigarettes to the BIDI E-cigarette

NCT05855343
View directory record Official record
Conditions
Smoking Cessation
Interventions
BIDI Stick e-cigarette
Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Novel vs. Usual Brand Menthol Cigarettes on Abuse Liability

NCT07564648
View directory record Official record
Conditions
Cigarette Addiction, Tobacco Use Disorder
Interventions
Biospecimen Collection, Questionnaire Administration, Cigarette Purchase Task, Cross-Price Elasticity Task, Daily Diary Surveys, Progressive Ratio Task
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Project 4, Study 2: Extended Exposure to Low Nicotine Content Cigarettes in Pregnant Women

NCT04033237
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
2
States / cities
Lexington, Kentucky • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pharmacokinetics and Pharmacodynamics of Nicotine With Use of Standardized Research Electronic Cigarette (SREC)

NCT05658471
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Toxicity, Cardiovascular Risk Factors
Interventions
Standardized Research E-Cigarette (SREC), Over the Counter E-Cigarette (EC), Biological Samples, Smoking-related Questionnaires
Other · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Results available

Measuring Neuroadaptations in Response to Very Low Nicotine Content Cigarettes

NCT03612960
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Very low nicotine content cigarettes, Normal nicotine content cigarettes
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 60 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sugars in Cigarettes

NCT05308316
View directory record Official record
Conditions
Tobacco Use
Interventions
Cigarettes with added sucrose
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nicotine and Sensorimotor Replacement for Smoking in Smokers With Schizophrenia

NCT01213524
View directory record Official record
Conditions
Tobacco Use Disorder, Schizophrenia
Interventions
sensorimotor replacement, 42 mg transdermal nicotine replacement, Placebo transdermal nicotine, usual brand smoking
Behavioral · Drug · Other
Lead sponsor
Brown University
Other
Eligibility
18 Years to 99 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 4, 2026, 10:13 PM EDT
Recruiting Not applicable Interventional

Health Effects of the Standardized Research E-Cigarette in Smokers With HIV Smokers With HIV

NCT03862924
View directory record Official record
Conditions
HIV
Interventions
Standardized Research Electronic Cigarette
Device
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jun 18, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Appeal of Nicotine Pouches Versus Cigarettes in the Ohio Appalachia Population

NCT05236894
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Cigarette Smoking, Nicotine Oral Pouch, Questionnaire Administration
Behavioral · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Reduced Nicotine Cigarettes in Smokers With and Without Alcohol Use Disorder

NCT02990455
View directory record Official record
Conditions
Alcohol Drinking, Cigarette Smoking Toxicity
Interventions
Reduced nicotine cigarettes
Drug
Lead sponsor
Battelle Memorial Institute
Other
Eligibility
21 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 29, 2021 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of an Oral Nicotine Product in Smokeless Tobacco Users

NCT05280769
View directory record Official record
Conditions
Tobacco Use
Interventions
oral nicotine pouch - 2 mg, oral nicotine pouch - 4 mg, oral nicotine pouch - 8 mg, Smokeless tobacco
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Impact of Synthetic Cooling Agents in Combustible Cigarettes on Smoking Perceptions and Use

NCT06230159
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Non-menthol Cigarette Smoking, Menthol Cigarette Smoking, Synthetic Cooling Agent Cigarette Smoking, Usual Brand Cigarette Smoking, Spirometry, Questionnaire Administration, Nasal Epithelial Lining Fluid
Behavioral · Diagnostic Test · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 29 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

BAT3221032: A Study to Evaluate the Effects of Switching From Cigarette Smoking to Using One of Five Variants of a Heated Tobacco Product on Biomarkers of Exposure and Biomarkers of Potential Harm in Healthy Subjects

NCT05142436
View directory record Official record
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
Product A: Non-Combusted Cigarette Variant 42001402 and product use Mode B, Product B: Non-Combusted Cigarette Variant 42001399 and product use Mode B, Product C: Non-Combusted Cigarette Variant 42001401 and product use Mode B, Product D: Non-Combusted Cigarette Variant 40007386 and product use Mode B, Product E: Non-Combusted Cigarette Variant 42001402 and product use Mode A
Other
Lead sponsor
British American Tobacco (Investments) Limited
Industry
Eligibility
26 Years to 55 Years
Enrollment
806 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
18
States / cities
Bentonville, Arkansas • Little Rock, Arkansas • Rogers, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2022 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparative Abuse Liability Among African American and White Smokers

NCT04646668
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
E-cigarette and Heat not burn
Combination Product
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Neuroimaging Reward, Behavioral Treatment, and Smoking Cessation

NCT02927847
View directory record Official record
Conditions
Smoking
Interventions
Nicotine Patch, SPECTRUM Nicotine Research Cigarettes (.03 mg), Behavioral Activation, Supportive Counseling
Drug · Behavioral
Lead sponsor
Maggie M Sweitzer, PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Randomized Controlled Trial to Evaluate the Impact of ZYN Nicotine Pouch Products on Cigarette Usage and BoExp in Adult Smokers Over a 12-week Period

NCT06568900
View directory record Official record
Conditions
Tobacco Use
Interventions
cigarette smoking, tobacco flavored and unflavored pouch, unrestricted flavor options pouch
Other
Lead sponsor
Swedish Match AB
Industry
Eligibility
22 Years to 65 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 23, 2024 · Synced Oct 4, 2026, 10:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Extinction Based Treatment for Nicotine Dependence

NCT00831155
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine Patches, Denicotinized Cigarettes
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
257 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Oct 4, 2026, 10:13 PM EDT