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NCT00141206 · ClinicalTrials.gov registry record · Phase 3

A Twelve-Week Study of Varenicline for Safety and Efficacy in Comparison With Placebo and Zyban for Smoking Cessation

A Phase 3 study, sponsored by Pfizer.

Completed
Registry status
Phase 3
Development phase
1,005
Enrollment target

NCT00141206: Completed Phase 3 study, sponsored by Pfizer.

NCT00141206 is a Phase 3 study that has completed, run by Pfizer. The registered enrollment target is 1,005 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (30% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00141206, a Phase 3 study, has completed, sponsored by Pfizer.

COMPLETED
Registry status
Phase 3
Development phase
1,005 participants
Enrollment target

Study Summary

The primary purpose of this study is to evaluate the safety and efficacy of varenicline given for a twelve week treatment period in comparison with placebo and Zyban for smoking cessation.

Interventions

  • DRUG varenicline (CP-526,555)

Trial Details

FieldValue
Enrollment Target 1,005 participants
Start Date 2003-05
Est. Completion 2005-04
Phase Phase 3
Pfizer

1,845 total trials

What the finished NCT00141206 record still lists

NCT00141206 is an interventional study that assigns participants to a tested intervention. Its 1,005 participants enrollment target places it among the larger protocols in the corpus, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (30% higher).

The record links to 0 conditions, and to 1 intervention - of which varenicline (CP-526,555) is the first listed.

NCT00141206 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00141206 about?

NCT00141206 is a clinical study titled "A Twelve-Week Study of Varenicline for Safety and Efficacy in Comparison With Placebo and Zyban for Smoking Cessation". The primary purpose of this study is to evaluate the safety and efficacy of varenicline given for a twelve week treatment period in comparison with placebo and Zyban for smoking cessation.

What is the current status of trial NCT00141206?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 1,005 participants. The study started on 2003-05. Estimated completion is 2005-04.

What interventions are being tested in trial NCT00141206?

The interventions under investigation include: varenicline (CP-526,555) (DRUG).

Who is sponsoring clinical trial NCT00141206?

This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00141206's enrollment target sits among peer trials

1,005 295th of 2000 higher than 1,706 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 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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Source: ClinicalTrials.gov NCT00141206, the US trial registry maintained by the National Library of Medicine. NCT00141206 (large enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.