Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Smoking Behaviors: early-phase trial registry
14 of 22 indexed Smoking Behaviors trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #756 of 28,707 conditions by registered trial count.
22 US clinical trials · 14 currently recruiting · #756 of 28,707 conditions by registered trial count
Smoking Behaviors: 22 US clinical trials tracked, 14 recruiting.
Smoking Behaviors is the subject of 22 registered US clinical trials on ClinicalTrials.gov, 14 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is RAI Services Company, running 3 of these trials.
Enrollment posture brief
Registry condition smoking-behaviors
OPEN 14 | RECR 64% | LATE 0 | EARLY 2 | RANK #756 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Autoimmune Disease (64% recruiting · 11 trials)
Smoking Behaviors lists 14 open slots (64% of 22 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 Smoking Behaviors 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.
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Smoking Behaviors is recruiting above its size-band peers.
14 of 22 indexed trials (63.6%) 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.
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Sponsorship of Smoking Behaviors trials is spread across many organizations.
RAI Services Company accounts for 3 of 22 trials (13.6%). 17 distinct sponsors appear on at least one study for this condition label.
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Typical Smoking Behaviors enrolment sits around 194 participants.
Median target enrolment is 194 among the 22 trials that report a genuine target (sentinel values excluded). 7 of those (31.8%) plan for fewer than 100 participants.
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Smoking Behaviors research is mostly interventional.
20 interventional and 2 observational studies make up this index (90.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
22 total, page 1 of 1
Health Opportunities and Promoters of Equitable Screening for Lung Cancer
Massachusetts General Hospital
NCT05784922
Take A Break - Rural
Wake Forest University Health Sciences
NCT05790486
Overcoming Nicotine Dependence to Enable Quitting
Rush University Medical Center
NCT05513872
A Clinical Trial of Adaptive Treatment for Early Smoking Cessation Relapse
Medical University of South Carolina
NCT06118502
Smoke Free SafeCare: Establishing a Smoke Free Home in CPS-involved Families
Georgia State University
NCT05000632
Effects of E-cigs vs Pouches on Cigarette Smoking and Addiction
Yale University
NCT06077240
Switch or Quit R01
Medical University of South Carolina
NCT06373679
Influence of Authorized Smokeless Tobacco Product Modified Risk Claims I: Consumer Product Demand
Roswell Park Cancer Institute
NCT07102082
Vape Use Among Younger & Older Smokers
Abramson Cancer Center at Penn Medicine
NCT07214168
Nordic Spirit Pouch Nicotine Pharmacokinetics Abuse Liability
JT International
NCT07476144
ACT Lung Health Intervention: Phase Two
Dana-Farber Cancer Institute
NCT06945120
Abuse Liability for Five Modern Oral Nicotine Products
RAI Services Company
NCT07132814
rTMS-concurrent Behavioral Priming for Reducing Smoking Cravings
West Virginia University
NCT06228235
A Study Evaluating the Use of an Indoor Air Quality Monitor to Promote a Smoke-free Home
Memorial Sloan Kettering Cancer Center
NCT06693700
Digitally Enhanced Smoking Cessation for High Risk Smokers
Dana-Farber Cancer Institute
NCT04691297
An Experimental Evaluation of Menthol-Flavored Tobacco Accessories
Virginia Polytechnic Institute and State University
NCT07092501
Interventions to Help More Low-income Smokers Quit
Washington University School of Medicine
NCT04311983
Tobacco/Nicotine Purchase Patterns Across SES
Virginia Polytechnic Institute and State University
NCT06795997
C-FLASH (Cigarillo Flavor and Abuse Liability, Attention, and Substitution in youtH)
Case Comprehensive Cancer Center
NCT04358705
CSD210903: A Study to Determine Subject Puffing Patterns of a Heated Tobacco Product With Four Non-Combusted Cigarette Variants in an Ambulatory Setting
RAI Services Company
NCT05307822
Cigarette Smoking Among Young Adults
University of Oklahoma
NCT04340947
CSD200907: A Study to Assess Elements of Abuse Liability for a Heated Tobacco Product With Four Non-Combusted Cigarette Variants
RAI Services Company
NCT05114863
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Smoking Behaviors records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Smoking Behaviors trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Smoking Behaviors page
22 registered trials, 14 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 14 Smoking Behaviors trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- RAI Services Company sponsors the most Smoking Behaviors trials on record, review their full trial history before evaluating a specific study. See RAI Services Company's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
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 Smoking Behaviors condition card totals 22 registered trials; most-linked intervention Product D; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.