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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Healthy Smokers Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Assess Tobacco-related Biomarkers of Exposure in Smokers Using myBlu E-cigarettes

NCT04019626
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Continue-smoking, myblu Tobacco 2.5%, myblu Tobacco 4.0%, myblu Honeymoon 2.5%, myblu Honeymoon 4.0%, JUUL 5%
Other
Lead sponsor
Fontem Ventures BV
Industry
Eligibility
21 Years to 65 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Sep 25, 2026, 5:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Smoking Cessation Study to Understand the Biological and Functional Changes After One Year of Smoking Cessation

NCT02432729
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Not listed
Lead sponsor
Philip Morris Products S.A.
Industry
Eligibility
30 Years to 65 Years
Enrollment
1,184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Sep 25, 2026, 5:32 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Evaluation of Acute and Subacute Effects of Nicotine Free Electronic Cigarette(NCFE) Vapors

NCT02585791
View directory record Official record
Conditions
Healthy Lifetime Non-smokers
Interventions
Propylene Glycol, vegetable glycerin, PG+VG
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Nicotine Sublingual Tablets Versus Nicorette Lozenge in Healthy Smokers

NCT02906995
View directory record Official record
Conditions
Tobacco Use Disorder, Cigarette Smoking
Interventions
Sublingual tablet 4 mg versus Nicorette Lozenge 4mg
Drug
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 3, 2017 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food Effect and CYP1A2 Induction Study in Healthy Subjects

NCT02168205
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Pomalidomide, Caffeine, Tobacco
Drug · Other
Lead sponsor
Celgene
Industry
Eligibility
40 Years to 80 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Sep 25, 2026, 5:32 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Investigation of the Impact of Smoking Status on Allergen-induced Nasal Airway Inflammation Using a Cat Hair (Felis Domesticus) Extract Nasal Allergen Challenge Model

NCT03031145
View directory record Official record
Conditions
Tobacco Smoking, Healthy Participants, E-cigarette Smokers
Interventions
Felis Domesticus
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Sep 25, 2026, 5:32 PM EDT
Completed No phase listed Observational

Quantitation of Human Cerebral Nicotinie Receptors With 2[18F]FA-85380 and PET Healthy Non-smokers and Ex-Smokers and in Heavy and Light Situational Smokers

NCT01038245
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 25, 2026, 5:32 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A First in Human Single Ascending Dose (SAD) Study of ATI-1013 in Healthy Smokers

NCT07215923
View directory record Official record
Conditions
Thromboangiitis Obliterans (Buerger's Disease)
Interventions
ATI-1013 (0.2 g), ATI-1013 (0.8 g), ATI-1013 (3.2 g), Placebo
Biological · Other
Lead sponsor
Antidote Therapeutics, Inc
Industry
Eligibility
23 Years to 59 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Pulmonary Safety and Pharmacokinetics of Zolmitriptan Inhalation Powder

NCT02905227
View directory record Official record
Conditions
Migraine
Interventions
CVT-427 (zolmitriptan inhalation powder)
Drug
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
3
States / cities
North Dartmouth, Massachusetts • Lincoln, Nebraska • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2018 · Synced Sep 25, 2026, 5:32 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Inhaled Steroids on Gene Expression in the Lungs - 2

NCT00826748
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Beclomethasone
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 24, 2018 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Bioequivalence Study of Two Nicotine Lozenges in Fasting Conditions in Healthy Smokers

NCT03541044
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine Prototype Mini lozenge, Nicorette Mini Lozenge
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 55 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Investigation Of The Effects Of Food On The Absorption Of A Varenicline Controlled Release Formulation

NCT00731562
View directory record Official record
Conditions
Pharmacokinetics, Bioavailability, Smoking Cessation
Interventions
Varenicline Tartrate Controlled Release
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
2
States / cities
East Grand Forks, Minnesota • Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2010 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Matrix on Fruit Constituent Bioavailability

NCT01908634
View directory record Official record
Conditions
Healthy Non-smoker
Interventions
Milk-based Strawberry Beverage without meal, Water-Based Strawberry Beverage without meal, Milk-based strawberry Beverage with meal, Water-Based strawberry Beverage with meal
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years to 78 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 10, 2021 · Synced Sep 25, 2026, 5:32 PM 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 23, 2014 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Whole Body Periodic Acceleration on Airway Endothelial Function

NCT01213706
View directory record Official record
Conditions
Healthy, Smokers, Asthma
Interventions
Whole Body Periodic Acceleration (WBPA), Sham WBPA
Device
Lead sponsor
University of Miami
Other
Eligibility
20 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 9, 2016 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Avocado and Postprandial Responses

NCT06818032
View directory record Official record
Conditions
Healthy, Healthy Volunteer, Healthy Volunteers, Healthy Adult, Healthy Male and Female Subjects, Healthy Subjects, Healthy Volunteers Only, Healthy Non-smokers
Interventions
Negative control, Avocado, Fat and fiber addition
Other
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study To Investigate The Metabolism Of GW876008 In Smokers Compared To Non-Smokers.

NCT00429728
View directory record Official record
Conditions
Healthy Subjects
Interventions
GW876008
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 45 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
1
States / cities
Willingboro, New Jersey
Source: ClinicalTrials.gov public record
Updated May 17, 2009 · Synced Sep 25, 2026, 5:32 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Physical Activity in Promoting Smoking Cessation in African Americans

NCT01915810
View directory record Official record
Conditions
Current Smoker, Healthy Subject
Interventions
Exercise Intervention, Laboratory Biomarker Analysis, Nicotine Patch, Questionnaire Administration, Tobacco Cessation Counseling
Behavioral · Other · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 25, 2026, 5:32 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Smoking-induced EGF-dependent Reprogramming of Airway Basal Cell Function

NCT01974180
View directory record Official record
Conditions
Smoking, COPD, Chronic Obstructive Pulmonary Disease
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluate the Effects of Itraconazole and Ciprofloxacin on Single-Dose PK of Pracinostat in Healthy Nonsmoking Subjects

NCT02118909
View directory record Official record
Conditions
Healthy Volunteers, Non-smokers
Interventions
Pracinostat, Itraconazole, Ciprofloxacin
Drug
Lead sponsor
Helsinn Healthcare SA
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 25, 2026, 5:32 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Natural History of Gene Expression in the Lung Cells of Non-Smokers, Smokers and Ex-Smokers in Health and Disease

NCT00974064
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Chronic Bronchitis, Emphysema
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2020 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Test-retest Reproducibility of [11C]PHNO PET Using the Constant Infusion Paradigm

NCT01699607
View directory record Official record
Conditions
Nicotine Dependence, Healthy
Interventions
Amphetamine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Nicotine Pharmacokinetics From Research Electronic Nicotine Delivery System S-TA-U001 in Smokers and E-Cigarette Users

NCT02792426
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Research ENDS S-TA-U001, Nicorette Inhalator
Drug
Lead sponsor
NJOY, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Burbank, California
Source: ClinicalTrials.gov public record
Updated May 16, 2018 · Synced Sep 25, 2026, 5:32 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study Evaluating Staccato® Alprazolam 1 mg Inhaler in Smokers Versus Non-Smokers

NCT03516305
View directory record Official record
Conditions
Healthy
Interventions
Staccato Alprazolam 1 mg
Drug
Lead sponsor
Engage Therapeutics, Inc.
Industry
Eligibility
21 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Eatontown, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Sep 25, 2026, 5:32 PM EDT