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ClinicalTrials.gov public records Last synced Oct 17, 2026, 9:16 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 145 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Non-Smoking Clear all
Recruiting Phase 3 Interventional Accepts healthy volunteers

Switching to E-cigarettes in Smokers Not Interested in Quitting

NCT05703672
View directory record Official record
Conditions
Smoking Reduction
Interventions
Varenicline Tartrate, Placebo, Electronic cigarette
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 17, 2026, 9:16 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Defective FGFR2 Signaling in the Small Airway Basal Progenitor Cells in COPD

NCT02341326
View directory record Official record
Conditions
COPD, Smoking, Lung Disorder
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Not applicable Interventional Results available

Cessation in Non-Daily Smokers

NCT02168855
View directory record Official record
Conditions
Smoking
Interventions
active nicotine gum, Standard behavioral therapy
Drug · Behavioral
Lead sponsor
Brian Primack
Other
Eligibility
18 Years and older
Enrollment
505 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 6, 2020 · Synced Oct 17, 2026, 9:16 PM EDT
Completed No phase listed Observational

Vanguard Study for Head and Neck Cancer or Non-Small Cell Lung Cancer (NSCLC) Patients

NCT00352391
View directory record Official record
Conditions
Head and Neck Cancer, Lung Cancer
Interventions
Assessments
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2016
U.S. locations
3
States / cities
Fort Gordon, Georgia • Johnstown, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Varenicline Safety, Tolerability, Pharmacokinetics and Pro-Cognitive Effects in Healthy Elderly Non-Smoking Subjects

NCT00694044
View directory record Official record
Conditions
Healthy, Non-Smoking
Interventions
varenicline, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
65 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jun 2, 2009 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Open-Label, Placebo-Controlled, Parallel Group Study in Healthy Volunteers to Evaluate the Effects of Two Single MT 400 or Naproxen Sodium Tablets

NCT00596245
View directory record Official record
Conditions
Healthy
Interventions
MT400
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 35 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 16, 2015 · Synced Oct 17, 2026, 9:16 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Menthol, Inflammation, and Nicotine Transition Study

NCT06232447
View directory record Official record
Conditions
Cigarette Smoking, Inflammatory Response
Interventions
Cigarette Type Switching
Other
Lead sponsor
Rosalind Franklin University of Medicine and Science
Other
Eligibility
21 Years to 85 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
North Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 17, 2026, 9:16 PM EDT
Recruiting Phase 3 Interventional

Intervention to Increase Intention to Change Alcohol/Tobacco Use in Veterans With Chronic Disease

NCT07039175
View directory record Official record
Conditions
Tobacco Smoking, Alcohol-Related Disorders
Interventions
MINDSET, Usual Care
Behavioral · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Dec 31, 2025 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Quetiapine on Marijuana Withdrawal and Relapse

NCT00743366
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Marijuana, Quetiapine, Placebo oral capsule
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cefadroxil 500 mg Capsules in Normal Healthy Non-Smoking Male and Female Subjects.

NCT00835081
View directory record Official record
Conditions
Healthy
Interventions
Cefadroxil 500 mg Capsules, DURICEF® capsules 500 mg
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 17, 2026, 9:16 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Nicotinic Receptor Density in Smoking and Nonsmoking Schizophrenics

NCT01246128
View directory record Official record
Conditions
Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland • Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Donepezil on Smoking

NCT01250977
View directory record Official record
Conditions
Smoking
Interventions
Donepezil, Placebo
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 2 Interventional Results available

Bupropion in Helping Adults Stop Smoking

NCT00534001
View directory record Official record
Conditions
Bladder Cancer, Cervical Cancer, Esophageal Cancer, Gastric Cancer, Head and Neck Cancer, Kidney Cancer, Leukemia, Liver Cancer, Lung Cancer, Pancreatic Cancer, Tobacco Use Disorder
Interventions
bupropion hydrochloride, placebo
Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Neurobiology of Nicotine and Non-nicotine Components of Tobacco Addiction

NCT01056926
View directory record Official record
Conditions
Smoking
Interventions
Quit smoking, Nicotine patch, Placebo Patch
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Oct 17, 2026, 9:16 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

VergeRx for Smokers Not Ready to Quit

NCT07693660
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
VergeRx, SmokefreeTXT, NRT Lozenge (Combination), Extended NRT Patch (16 weeks), Standard NRT Patch (8 weeks)
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
592 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2032
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Informing Tobacco Treatment Guidelines for African American Non-Daily Smokers

NCT02244918
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Replacement Therapy, Smoking Cessation Counseling
Drug · Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
2
States / cities
Kansas City, Kansas • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

THC Crossover Study

NCT04429568
View directory record Official record
Conditions
THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
Interventions
Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2024 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Imaging Regional Lung Defect Severity

NCT01640288
View directory record Official record
Conditions
COPD
Interventions
Perfluorinated Gas/Oxygen Mixture, High Resolution CT of the Chest
Drug · Other
Lead sponsor
Hal C Charles
Other
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD210903: A Study to Determine Subject Puffing Patterns of a Heated Tobacco Product With Four Non-Combusted Cigarette Variants in an Ambulatory Setting

NCT05307822
View directory record Official record
Conditions
Smoking, Smoking Behaviors, Tobacco Use, Tobacco Smoking
Interventions
Non-combusted cigarette variant 42001401, Non-combusted cigarette variant 42001399, Non-combusted cigarette variant 40007386, Non-combusted cigarette variant 42001402
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years and older
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
7
States / cities
Sandy Springs, Georgia • Lexington, Kentucky • Charlotte, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cooling Agent Pilot Among Adult Menthol Smokers

NCT06477601
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Assigning cooling agent type cigarettes, Assigning traditional tobacco type cigarettes, Assigning menthol type cigarettes
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 17, 2026, 9:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Culturally Enhancing a Motivational Interviewing Intervention For Latinx Adolescents

NCT03947177
View directory record Official record
Conditions
Underage Alcohol Use, Smoking, Non-Tobacco Products
Interventions
GMIT+
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
10 Years to 16 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 30, 2022 · Synced Oct 17, 2026, 9:16 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Physiological Responses in Tobacco Chippers

NCT01237834
View directory record Official record
Conditions
Smoking, Stress
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
25 Years to 55 Years
Enrollment
178 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 30, 2014 · Synced Oct 17, 2026, 9:16 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Non-invasive Vagus Nerve Stimulation (nVNS) and Cognition in Young Adult Vapers - A Pilot Study

NCT06804109
View directory record Official record
Conditions
Vaping
Interventions
Active nVNS, Control nVNS
Device
Lead sponsor
Temple University
Other
Eligibility
18 Years to 25 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 17, 2026, 9:16 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

QAIAx (AIhealth4U) - AI Smart Health Cities: Microcity Enclave Program (Quantum AI/AGI Agency a/k/a AI City Hall Project - UPSTO App Nos. 64/074,526, 64/063,557, 64/105,164, 63/903,181, 63/729,428, 64/125,360)

NCT07661823
View directory record Official record
Conditions
Asperger's Disorder, Asperger Disorder, Autism Disorder, Autism, ADHD - Attention Deficit Disorder With Hyperactivity, ADHD, ASD, Alcohol Abuse/Dependence, Alcohol Addiction, Alcohol and Other Drug Use Disorders, Alcohol and Other Substance Use Prevention, Gambling Addiction, Gambling Disorder, Sex Abuse, Sex Behavior, Sex Crimes, Sex Disorder, Sex Disorders, Gender Dysphoria, Adult, Eating Behavior Disorders, Narcotic-Related Disorders, Narcotic Addiction, Narcissism, Psychiatric Disorder, Psychedelic Effects in Healthy Volunteers, Psychedelic Experiences, Psychedelic Drug Dependence, Marijuana Use Disorder, Marijuana Abuse and Dependence, Smoking (Tobacco) Addiction, Smoking Among Youth, Smoking Abstinence, Abstinence, Sex, Opiate Substitution Treatment, Opioid Abuse (Disorder), Opioid Abuse and Addiction, Cocaine Abuse, MDMA ('Ecstasy'), Addiction Disorders, Homeless and Low Incomes People, Refugees, Homelessness, Reliability and Validity, Anger Problems, Child Abuse, Sexual
Interventions
AI City Hall Project (AIhealth4u - Public Health Central), AI City Hall Project (QAIAx Microcity A - AI Public Health Central)
Behavioral
Lead sponsor
Veterans Recovery Network Inc.
Other
Eligibility
17 Years to 99 Years
Enrollment
1,000,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2045
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 17, 2026, 9:16 PM EDT