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NCT00835900 · ClinicalTrials.gov registry record · Phase 2

An Alternative Dosing Schedule of Varenicline for Smoking Cessation

A Phase 2 study, sponsored by Roswell Park Cancer Institute.

Completed
Registry status
Phase 2
Development phase
60
Enrollment target

NCT00835900: Completed Phase 2 study, sponsored by Roswell Park Cancer Institute.

NCT00835900 is a Phase 2 study that has completed, run by Roswell Park Cancer Institute. The registered enrollment target is 60 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (55% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00835900, a Phase 2 study, has completed, sponsored by Roswell Park Cancer Institute.

COMPLETED
Registry status
Phase 2
Development phase
60 participants
Enrollment target

Study Summary

The purpose of this study is to explore the use of an prolonged alternative dosing schedule using varenicline for smoking cessation leading to greater quit rates and higher rates of continuous abstinence.

Primary Outcome

Change in cigarettes per day from Week 2 to Week 5

Interventions

  • DRUG placebo
  • DRUG varenicline

Trial Details

FieldValue
Enrollment Target 60 participants
Start Date 2009-03
Est. Completion 2015-07
Phase Phase 2
Roswell Park Cancer Institute

365 total trials

What the finished NCT00835900 record still lists

NCT00835900 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 60 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (55% lower).

The record links to 0 conditions, and to 2 interventions - of which placebo is the first listed.

NCT00835900 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00835900 about?

NCT00835900 is a clinical study titled "An Alternative Dosing Schedule of Varenicline for Smoking Cessation". The purpose of this study is to explore the use of an prolonged alternative dosing schedule using varenicline for smoking cessation leading to greater quit rates and higher rates of continuous abstinence.

What is the current status of trial NCT00835900?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 60 participants. The study started on 2009-03. Estimated completion is 2015-07.

What interventions are being tested in trial NCT00835900?

The interventions under investigation include: placebo (DRUG), varenicline (DRUG).

Who is sponsoring clinical trial NCT00835900?

This trial is sponsored by Roswell Park Cancer Institute, which has 365 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00835900's enrollment target sits among peer trials

60 1027th of 2000 higher than 868 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 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 NCT00835900, the US trial registry maintained by the National Library of Medicine. NCT00835900 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.