Nicotine Clinical Trials

68 recruitingLast updated: July 25, 2026

There are 68 actively recruiting nicotine clinical trials across 14 countries. Studies span Not Applicable, Phase 4, Phase 1, Phase 2, Early Phase 1, Phase 3. Top locations include New Haven, Connecticut, United States, Toronto, Ontario, Canada, Charleston, South Carolina, United States. Updated daily from ClinicalTrials.gov.


Nicotine Trials at a Glance

68 actively recruiting trials for nicotine are listed on ClinicalTrialsFinder across 6 cities in 14 countries. The largest study group is Not Applicable with 37 trials, with the heaviest enrollment activity in New Haven, Toronto, and Charleston. Lead sponsors running nicotine studies include Yale University, University of Southern California, and Medical University of South Carolina.

Browse nicotine trials by phase

Treatments under study

About Nicotine Clinical Trials

Looking for clinical trials for Nicotine? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Nicotine trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Nicotine clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 68 trials

Recruiting
Not Applicable

Advanced Functional and Structural MRI Techniques for Neuropharmacological Imaging

Drug AbuseNicotine Dependence
National Institute on Drug Abuse (NIDA)1,000 enrolled1 locationNCT01036581
Recruiting
Not Applicable

Orexin s Role in the Neurobiology of Substance Use Disorder

Nicotine Dependence
National Institute on Drug Abuse (NIDA)140 enrolled1 locationNCT05630781
Recruiting
Not Applicable

Social Media Support Groups for Adolescent Vaping Cessation

VapingNicotine DependenceVaping Cessation
University of California, San Francisco60 enrolled1 locationNCT07540780
Recruiting
Not Applicable

Temporal Interference Methods for Addiction Treatment

Substance Use DisordersNicotine Use Disorder
Indiana University120 enrolled2 locationsNCT07210268
Recruiting
Phase 4

Varenicline and Accelerated Transcranial Magnetic Stimulation (TMS) for Quitting Nicotine Use (Pilot Study)

VapingSmoking CessationSmoking (Tobacco) Addiction+2 more
Massachusetts General Hospital30 enrolled1 locationNCT07145866
Recruiting
Not Applicable

Abuse Liability and Appeal of Oral Nicotine Products

Nicotine Dependence
University of Southern California320 enrolled2 locationsNCT06506162
Recruiting
Not Applicable

Brain/Craving Response to Smoking Cues After Oral Nicotine Pouch Use

Nicotine Dependence
University of Southern California45 enrolled1 locationNCT07698470
Recruiting
Early Phase 1

Smart Olfaction App to Reduce Relapse

Nicotine Dependence
University of Houston132 enrolled1 locationNCT07007195
Recruiting
Not Applicable

Implementation of Tobacco Cessation Programming at Community Behavioral Health Sites

Smoking CessationNicotine Use DisorderSmoking Cessation Intervention
University of Chicago24 enrolled1 locationNCT06837220
Recruiting
Not Applicable

Behavioral Intervention for Youth to Promote Vaping Cessation

VapingNicotine DependenceVaping Teens
Massachusetts General Hospital400 enrolled1 locationNCT06765291
Recruiting
Not Applicable

Young Adult Tobacco/Nicotine and Cannabis Co-use

Tobacco Use DisorderNicotine Dependence
Medical University of South Carolina350 enrolled1 locationNCT06239350
Recruiting
Phase 2

Pharmaceutically-Enhanced Reinforcement for Reduced Alcohol and Smoking

Nicotine Use DisorderAlcohol Use Disorder (AUD)
Washington State University205 enrolled1 locationNCT05181891
Recruiting
Not Applicable

Non-Invasive Deep Brain Neuromodulation for Smoking Cessation

Nicotine Addiction
The University of Texas Health Science Center, Houston100 enrolled1 locationNCT07298902
Recruiting
Not Applicable

A Digital Intervention (ACT on Vaping App) for Vaping Cessation in Young Adult E-Cigarette Users

Tobacco-Related CarcinomaNicotine Dependence
Fred Hutchinson Cancer Center1,178 enrolled1 locationNCT06909500
Recruiting
Not Applicable

Effects of Novel E-cigarette Constituents on Adults TCORS 3.0

Nicotine Use Disorder
Yale University66 enrolled1 locationNCT05932745
Recruiting
Phase 4

E-cigarette Cessation in Adults Who Co-use Cannabis

Tobacco Use DisorderNicotine Dependence
Medical University of South Carolina105 enrolled3 locationsNCT06688539
Recruiting
Not Applicable

Support Your Heart, Phase 1

Diet, HealthySleepPhysical Activity+3 more
George Washington University20 enrolled1 locationNCT07623733
Recruiting

Effects of E-Cigarette Flavors on Adult E-Cigarette Users With Opioid Use Disorder

Opioid-use DisorderNicotine Use Disoder
Prisma Health-Upstate70 enrolled1 locationNCT07594717
Recruiting
Not Applicable

Metabolome and Gut Microbiome Changes During Smoking Cessation in Long-term Drug Therapy in a Therapeutic Community

healthy adult participantsSubstance Use Disorder (SUD)Alcohol Use Disorder (AUD)+1 more
Sigmund Freud PrivatUniversitat150 enrolled3 locationsNCT06803706
Recruiting
Not Applicable

Developing a Scalable Tobacco Cessation Program for Cancer Survivors and Caregivers

Tobacco UseNicotine Use
University of Florida204 enrolled1 locationNCT06851936