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NCT00332644 · ClinicalTrials.gov registry record · Phase 4
Smoking Cessation Medications: Efficacy, Mechanisms and Algorithms
A Phase 4 study, sponsored by University of Wisconsin, Madison.
- Completed
- Registry status
- Phase 4
- Development phase
- 1,504
- Enrollment target
NCT00332644: Completed Phase 4 study, sponsored by University of Wisconsin, Madison.
NCT00332644 is a Phase 4 study that has completed, run by University of Wisconsin, Madison. The registered enrollment target is 1,504 participants, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (190% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00332644, a Phase 4 study, has completed, sponsored by University of Wisconsin, Madison.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 1,504 participants
- Enrollment target
Study Summary
The proposed work will advance the understanding and effectiveness of tobacco dependence treatment and result in more smokers quitting successfully.
Primary Outcome
Smoking status was assessed both as 7-day point-prevalence abstinence ("Have you smoked at all, even a puff, in the last 7 days?") and continuous abstinence (smoking at all since the target quit day), using a smoking calendar and the timeline follow-back method. All participants' self-reports of smoking status during study visits were confirmed by an expired carbon monoxide level of less than 10 ppm measured using a Micro-3 Smokerlyzer (Bedfont Scientific, Williamsburg, Virginia).
Interventions
- DRUG nicotine patch
- DRUG bupropion
- DRUG nicotine lozenge
- DRUG nicotine patch + nicotine lozenge
- DRUG bupropion + lozenge
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 1,504 participants |
| Start Date | 2004-09 |
| Est. Completion | 2010-08 |
| Phase | Phase 4 |
What the finished NCT00332644 record still lists
NCT00332644 is an interventional study that assigns participants to a tested intervention. Its 1,504 participants enrollment target places it among the larger protocols in the corpus, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (190% higher).
The record links to 0 conditions, and to 5 interventions - of which nicotine patch is the first listed.
NCT00332644 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00332644 about?
NCT00332644 is a clinical study titled "Smoking Cessation Medications: Efficacy, Mechanisms and Algorithms". The proposed work will advance the understanding and effectiveness of tobacco dependence treatment and result in more smokers quitting successfully.
What is the current status of trial NCT00332644?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 1,504 participants. The study started on 2004-09. Estimated completion is 2010-08.
What interventions are being tested in trial NCT00332644?
The interventions under investigation include: nicotine patch (DRUG), bupropion (DRUG), nicotine lozenge (DRUG), nicotine patch + nicotine lozenge (DRUG), bupropion + lozenge (DRUG).
Who is sponsoring clinical trial NCT00332644?
This trial is sponsored by University of Wisconsin, Madison, which has 1,039 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00332644's enrollment target sits among peer trials
1,504 51st of 2000 higher than 1,950 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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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