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Clinical Trials/NCT00741884
NCT00741884
Withdrawn
Phase 2

A Phase 2, Seven Week, Double-Blind, Placebo Controlled, Randomized, Parallel Group Study To Evaluate The Safety And Efficacy Of Three Doses Of A Controlled Release Formulation Of Varenicline For Smoking Cessation

Pfizer0 sitesAugust 2010

Overview

Phase
Phase 2
Intervention
Varenicline Controlled Release 1.2 mg
Conditions
Smoking Cessation
Sponsor
Pfizer
Primary Endpoint
Continuous abstinence from smoking for weeks 4-7, carbon monoxide confirmed
Status
Withdrawn
Last Updated
11 years ago

Overview

Brief Summary

The purpose of this study is to evaluate the safety, efficacy, and tolerability of twice daily (BID) administration of three dose strengths (1.2 mg, 1.8 mg, and 2.4 mg) of varenicline controlled release (CR) tablets in adult smokers.

Registry
clinicaltrials.gov
Start Date
August 2010
End Date
August 2011
Last Updated
11 years ago
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Sponsor
Pfizer

Eligibility Criteria

Inclusion Criteria

  • Male or female cigarette smokers between the ages of 18 and 75 years, inclusive, who are motivated to stop smoking.
  • Females of non-childbearing potential (surgically sterilized or at least 2 years postmenopausal) who are not nursing may be included.
  • Subjects must have smoked an average of at least 10 cigarettes per day during the past year and over the month prior to the screening visit, with no period of abstinence greater than 3 months in the past year.

Exclusion Criteria

  • Subjects with clinically significant cardiovascular disease in the past 6 months.
  • Subjects hospitalized within the past 12 months due to suicidal ideation or suicidal behavior or subjects considered to have serious suicidal ideation or suicidal behavior within the past 12 months.
  • Subjects having active suicidal ideation or behavior identified at Screen or Baseline.
  • Subjects currently or within the past 12 months requiring treatment for depression. Subjects with current or prior history of panic disorder, anxiety disorder, hostility or aggression disorder, perceptual/thinking disturbances, psychosis, or bipolar disorder.

Arms & Interventions

Arm 1

Intervention: Varenicline Controlled Release 1.2 mg

Arm 2

Intervention: Varenicline Controlled Release 1.8 mg

Arm 3

Intervention: Varenicline Controlled Release 2.4 mg

Arm 4

Intervention: Varenicline Immediate Release 1 mg

Arm 5

Intervention: Placebo

Outcomes

Primary Outcomes

Continuous abstinence from smoking for weeks 4-7, carbon monoxide confirmed

Time Frame: 7 weeks

Secondary Outcomes

  • 7- day point prevalence of non-smoking at week 7(7 days)
  • Scores on the Minnesota Nicotine Withdrawal Scale subscales(7 weeks)
  • Scores on the Modified Cigarette Evaluation Questionaire subscales(7 weeks)
  • PK analysis(7 weeks)
  • Safety Assessments: adverse events, C-SSRs, vital signs, body weight(7 weeks)

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