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ClinicalTrials.gov 19 recruiting now early-phase tilt

Tobacco Use Disorder: early-phase trial registry

19 of 75 indexed Tobacco Use Disorder trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #178 of 28,707 conditions by registered trial count.

75 US clinical trials · 19 currently recruiting · #178 of 28,707 conditions by registered trial count

Tobacco Use Disorder: 75 US clinical trials tracked, 19 recruiting.

Tobacco Use Disorder is the subject of 75 registered US clinical trials on ClinicalTrials.gov, 19 of them currently open to new participants. 9 are in Phase 3-4 (later-stage) and 34 in Phase 1-2 (earlier-stage). The most active sponsor is National Institute on Drug Abuse (NIDA), running 7 of these trials.

Enrollment posture brief

Registry condition tobacco-use-disorder

OPEN 19 | RECR 25% | LATE 9 | EARLY 34 | RANK #178 | SPON 7

Nearest open-share peer: Overweight (25% recruiting · 198 trials)

Acute Kidney Injury44%Infertility33.3%Age-related Macular Degenera26.7%Tobacco Use Disorder (this)25%Pulmonary Disease, Chronic O9.3%
Open-enrollment share among volume-matched conditions near Tobacco Use Disorder

Tobacco Use Disorder lists 19 open slots (25% of 75 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Tobacco Use Disorder on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Tobacco Use Disorder is recruiting below its size-band peers.

    19 of 75 indexed trials (25.3%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Tobacco Use Disorder trials is spread across many organizations.

    National Institute on Drug Abuse (NIDA) accounts for 7 of 75 trials (9.3%). 36 distinct sponsors appear on at least one study for this condition label.

  3. Typical Tobacco Use Disorder enrolment sits around 108 participants.

    Median target enrolment is 108 among the 71 trials that report a genuine target (sentinel values excluded). 32 of those (45.1%) plan for fewer than 100 participants.

  4. Tobacco Use Disorder research is mostly interventional.

    73 interventional and 2 observational studies make up this index (97.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 18Phase 226Phase 33Phase 46

Open and recent trials

75 total, page 2 of 2

COMPLETED NA 122 participants

Promoting Home Smoking Restrictions: Biomarker Feedback to Smoking and Non-Smoking Adults

University of Minnesota

NCT01497158

COMPLETED NA 104 participants

Evaluation of Oral Tobacco as a Harm Reduction Method for Smokers

University of Minnesota

NCT00711100

COMPLETED NA 100 participants

Electronic Cigarettes (E-cigarettes) as a Harm Reduction Strategy

NYU Langone Health

NCT02628964

COMPLETED Phase 2 98 participants

Effect of Galantamine on Short-term Abstinence

University of Pennsylvania

NCT01669538

COMPLETED NA 84 participants

Examining a Text Message Intervention for Smoking Cessation

The Miriam Hospital

NCT01166464

COMPLETED NA 73 participants

Varenicline-Aided Cigarette Reduction in Smokers Not Ready to Quit

Rutgers, The State University of New Jersey

NCT01308736

COMPLETED NA 63 participants

Examining the Effects of Neural Stimulation on Inhibitory Control and Cigarette Smoking

University of Missouri-Columbia

NCT03960138

COMPLETED Phase 1 58 participants

Persistence-Targeted Smoking Cessation

Rutgers, The State University of New Jersey

NCT01654107

COMPLETED NA 58 participants

Text Message Support to Prevent Smoking Relapse

Miami University

NCT02968095

COMPLETED NA 56 participants

Medicinal Nicotine for Preventing Cue Induced Craving

University of Minnesota

NCT02347605

COMPLETED Phase 4 52 participants

A Comparison of Bupropion SR and Placebo for Smoking Cessation

University of Maryland, Baltimore

NCT00176449

COMPLETED NA 47 participants

Effect of Banning Menthol Flavorant on Cigarette and E-Cigarette Use

University of Minnesota

NCT03402243

COMPLETED Phase 2 41 participants

Progesterone for Smoking Relapse Prevention Following Delivery

Yale University

NCT01972464

COMPLETED Phase 2 40 participants

Tobacco Approach Avoidance Training for Adolescent Smokers-1

Yale University

NCT01625767

COMPLETED Phase 2 28 participants

N-Acetyl Cysteine Plus Behavioral Therapy for Nicotine Dependent Pathological Gamblers

University of Chicago

NCT00967005

COMPLETED Phase 1 25 participants

Effect of Memantine Versus Bupropion on Smoking Relapse in Nicotine-Dependent Individuals - 3

New York State Psychiatric Institute

NCT00136786

COMPLETED Early Phase 1 21 participants

Reduced Nicotine Cigarette Purchasing Decisions

Johns Hopkins University

NCT04999644

COMPLETED Phase 1 20 participants

Lorcaserin for Preventing Weight Gain Among Smokers

Mayo Clinic

NCT02393547

COMPLETED Phase 1 15 participants

Brain Imaging in Tobacco Smokers During a Quit Attempt

Johns Hopkins University

NCT04055467

COMPLETED Phase 4 14 participants

Varenicline Effects In Schizophrenic Smokers

Nathan Kline Institute for Psychiatric Research

NCT00548470

COMPLETED NA 10 participants

Pilot Study of Nicotine Replacement for Smoking Cessation During Pregnancy

Hartford Hospital

NCT00888979

COMPLETED Phase 2

Role of Metabolites in Nicotine Dependence (2) - 5

National Institute on Drug Abuse (NIDA)

NCT00000288

COMPLETED Phase 2

Progesterone Treatment in Female Smokers - 12

National Institute on Drug Abuse (NIDA)

NCT00000295

COMPLETED Phase 3

Non-Nicotine Agents for Smoking Cessation

US Department of Veterans Affairs

NCT00108537

COMPLETED Phase 2

Role of Metabolites in Nicotine Dependence (1) - 1

National Institute on Drug Abuse (NIDA)

NCT00000284

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Phase Distribution

PhaseTrial count
Phase 1 8
Phase 2 26
Phase 3 3
Phase 4 6

Named interventions

Most-linked intervention names on Tobacco Use Disorder records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Varenicline Drug
8 trials
Placebo Drug
6 trials
Nicotine Patch Drug
4 trials
Counseling Behavioral
3 trials
Questionnaire Administration Other
3 trials
Placebo Other
3 trials
Cotinine fumarate Drug
2 trials
Very low nicotine content cigarettes Other
2 trials

US sites by state

Facility locations filed on Tobacco Use Disorder trials. A trial with sites in several states counts in each.

Minnesota 15 trials
California 9 trials
Texas 8 trials
New York 7 trials
Maryland 7 trials
Connecticut 6 trials
South Carolina 5 trials
Pennsylvania 5 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Tobacco Use Disorder page

75 registered trials, 19 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Tobacco Use Disorder condition card totals 75 registered trials; most-linked intervention Varenicline; top US site state Minnesota. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.