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NCT03306173 · ClinicalTrials.gov registry record · NA
COMET Study 1: Filter Ventilated Cigarette Substitution in the ETM
A NA study, sponsored by Virginia Polytechnic Institute and State University.
- Completed
- Registry status
- NA
- Development phase
- 142
- Enrollment target
NCT03306173: Completed NA study, sponsored by Virginia Polytechnic Institute and State University.
NCT03306173 is a NA study that has completed, run by Virginia Polytechnic Institute and State University. The registered enrollment target is 142 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (90% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03306173, a NA study, has completed, sponsored by Virginia Polytechnic Institute and State University.
- COMPLETED
- Registry status
- NA
- Development phase
- 142 participants
- Enrollment target
Study Summary
Early attempts by the tobacco industry to develop "safer" cigarettes led to the widespread introduction of ventilation holes in cigarette filters; however, this design feature may instead increase smoking-related harm and make cigarettes more palatable. The overall goal of this project is to model regulatory restrictions banning cigarette filter ventilation and determine their effects on consumption of both cigarettes and a wide range of alternative tobacco products. Testing potential regulatory actions under controlled conditions will facilitate evidence-based policies that have a net benefit to health.
Primary Outcome
Participants completed purchasing trials in an experimental marketplace, a virtual store designed to mimic real-world shopping environments. In each lab session, participants completed multiple trials in which the price of their assigned cigarette increased progressively from $0.13 in the first trial to $4.00 in the final trial, while prices for other products (e-cigarettes, e-liquid, nicotine gum, snus, lozenges, and dip) remained constant. The mean and standard deviation of quantity purchased
Interventions
- OTHER Commercially available cigarette
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 142 participants |
| Start Date | 2018-08-08 |
| Est. Completion | 2020-03-10 |
| Phase | NA |
What the finished NCT03306173 record still lists
NCT03306173 is an interventional study that assigns participants to a tested intervention. The registered 142 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (90% lower).
The record links to 0 conditions, and to 1 intervention - of which Commercially available cigarette is the first listed.
NCT03306173 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03306173 about?
NCT03306173 is a clinical study titled "COMET Study 1: Filter Ventilated Cigarette Substitution in the ETM". Early attempts by the tobacco industry to develop "safer" cigarettes led to the widespread introduction of ventilation holes in cigarette filters; however, this design feature may instead increase smoking-related harm and make cigarettes more palatable. The overall goal of this project is to model r...
What is the current status of trial NCT03306173?
This trial is currently completed. It is a NA study. The enrollment target is 142 participants. The study started on 2018-08-08. Estimated completion is 2020-03-10.
What interventions are being tested in trial NCT03306173?
The interventions under investigation include: Commercially available cigarette (OTHER).
Who is sponsoring clinical trial NCT03306173?
This trial is sponsored by Virginia Polytechnic Institute and State University, which has 104 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03306173's enrollment target sits among peer trials
142 711th of 2000 higher than 1,289 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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