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NCT02247908 · ClinicalTrials.gov registry record · NA
Impact of Graphic Cigarette Warnings
A NA study, sponsored by University of North Carolina, Chapel Hill.
- Completed
- Registry status
- NA
- Development phase
- 2,149
- Enrollment target
NCT02247908: Completed NA study, sponsored by University of North Carolina, Chapel Hill.
NCT02247908 is a NA study that has completed, run by University of North Carolina, Chapel Hill. The registered enrollment target is 2,149 participants, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (53% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02247908, a NA study, has completed, sponsored by University of North Carolina, Chapel Hill.
- COMPLETED
- Registry status
- NA
- Development phase
- 2,149 participants
- Enrollment target
Study Summary
The purpose of this randomized controlled trial is to determine whether graphic health warnings on cigarette packs are more effective than the existing Surgeon General's warning on cigarette packs at encouraging quit attempts. While previous experiments evaluating candidate graphic warnings have been informative, they have used psychological outcomes, such as attitudes or quit intentions, but not actual cessation behavior (e.g., quit attempts). Furthermore, they typically expose participants to warnings in controlled but artificial experimental settings for a short period of time, using much lower frequency and shorter duration of warning exposure than found in the real world. This study addresses these issues by evaluating the impact of warnings on quit attempts by randomly assigning smokers to have their cigarette packs labeled with either a graphic warning or a Surgeon General's warning for four weeks. Main hypothesis: Smokers randomized to receive graphic warnings on their cigarette packs will be more likely to report a quit attempt in the 4 weeks of the study than smokers randomized to receive a Surgeon General's label on their cigarette packs. Secondary hypothesis: Smokers randomized to receive graphic warnings on their cigarette packs will have higher quit intentions at 4 weeks than smokers randomized to receive a Surgeon General's label on their cigarette packs, controlling for baseline quit intentions.
Primary Outcome
The primary outcome is a quit attempt during the 4 weeks of the study, reported at either 1, 2, 3, or 4 weeks. A quit attempt is defined as 24 hours without smoking.
Interventions
- OTHER Graphic Warning
- OTHER Surgeon General's Warning
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 2,149 participants |
| Start Date | 2014-10 |
| Est. Completion | 2016-09 |
| Phase | NA |
What the finished NCT02247908 record still lists
NCT02247908 is an interventional study that assigns participants to a tested intervention. Its 2,149 participants enrollment target places it among the larger protocols in the corpus, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (53% higher).
The record links to 0 conditions, and to 2 interventions - of which Graphic Warning is the first listed.
NCT02247908 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02247908 about?
NCT02247908 is a clinical study titled "Impact of Graphic Cigarette Warnings". The purpose of this randomized controlled trial is to determine whether graphic health warnings on cigarette packs are more effective than the existing Surgeon General's warning on cigarette packs at encouraging quit attempts. While previous experiments evaluating candidate graphic warnings have bee...
What is the current status of trial NCT02247908?
This trial is currently completed. It is a NA study. The enrollment target is 2,149 participants. The study started on 2014-10. Estimated completion is 2016-09.
What interventions are being tested in trial NCT02247908?
The interventions under investigation include: Graphic Warning (OTHER), Surgeon General's Warning (OTHER).
Who is sponsoring clinical trial NCT02247908?
This trial is sponsored by University of North Carolina, Chapel Hill, which has 1,109 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02247908's enrollment target sits among peer trials
2,149 49th of 2000 higher than 1,952 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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