Efficacy and Safety of Varenicline in Smokers With Cardiovascular Disease Who Wish to Quit Smoking

March 7, 2017 updated by: Pfizer

A 12-Week, Double-Blind, Placebo-Controlled, Multicenter Study With A 40 Week Follow Up Evaluating the Safety and Efficacy of Varenicline Tartrate 1 Milligram (Mg) Twice Daily (BID) for Smoking Cessation in Subjects With Cardiovascular Disease

The primary purpose of this study is to determine whether or not varenicline will help people with cardiovascular disease quit smoking and to confirm it is safe in these patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
714

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Argentina
    • Buenos Aires
      • Capital Federal, Buenos Aires, Argentina, 1181
        • Pfizer Investigational Site
      • Ciudad de Buenos Aires, Buenos Aires, Argentina, 1221
        • Pfizer Investigational Site
  • Australia
    • New South Wales
      • Concord, New South Wales, Australia, 2139
        • Pfizer Investigational Site
    • Queensland
      • Herston, Queensland, Australia, 4029
        • Pfizer Investigational Site
  • Brazil
    • RS
      • Porto Alegre, RS, Brazil, 90610-000
        • Pfizer Investigational Site
    • SP
      • São Paulo, SP, Brazil, 05403-904
        • Pfizer Investigational Site
  • Canada
      • Quebec, Canada, G1V 4M6
        • Pfizer Investigational Site
    • Ontario
      • London, Ontario, Canada, N6C 5J1
        • Pfizer Investigational Site
      • Ottawa, Ontario, Canada, K1Y 4W7
        • Pfizer Investigational Site
    • Quebec
      • Drummondville, Quebec, Canada, J2B 7T1
        • Pfizer Investigational Site
  • Czech Republic
      • Brno, Czech Republic, 625 00
        • Pfizer Investigational Site
      • Praha 2, Czech Republic, 120 00
        • Pfizer Investigational Site
  • Denmark
      • Aarhus C, Denmark, DK-8000
        • Pfizer Investigational Site
      • Hellerup, Denmark, DK-2900
        • Pfizer Investigational Site
  • France
      • Caen, France, 14033
        • Pfizer Investigational Site
      • Marseille, France, 13015
        • Pfizer Investigational Site
      • Toulouse Cedex, France, 31059
        • Pfizer Investigational Site
  • Germany
      • Berlin, Germany, 10787
        • Pfizer Investigational Site
      • Goettingen, Germany, 37075
        • Pfizer Investigational Site
      • Tuebingen, Germany, 72076
        • Pfizer Investigational Site
  • Greece
      • Athens, Greece, 11528
        • Pfizer Investigational Site
      • Pireaus, Greece, 18526
        • Pfizer Investigational Site
  • Korea, Republic of
      • Seoul, Korea, Republic of, 138-736
        • Pfizer Investigational Site
      • Seoul, Korea, Republic of, 110-799
        • Pfizer Investigational Site
      • Seoul, Korea, Republic of, 135-720
        • Pfizer Investigational Site
    • Korea
      • Seoul, Korea, Korea, Republic of, 152-703
        • Pfizer Investigational Site
  • Mexico
    • Mexico D.F.
      • Tlalpan, Mexico D.F., Mexico, 14080
        • Pfizer Investigational Site
    • Nuevo León
      • Monterrey, Nuevo León, Mexico
        • Pfizer Investigational Site
  • Netherlands
      • Amsterdam, Netherlands, 1066 EC
        • Pfizer Investigational Site
      • Zuthpen, Netherlands, 7207 BA
        • Pfizer Investigational Site
  • Taiwan
      • Taipei, Taiwan, 11217
        • Pfizer Investigational Site
      • Tau-Yuan Hsien, Taiwan, 333
        • Pfizer Investigational Site
  • United Kingdom
      • Leicester, United Kingdom, LE1 5WW
        • Pfizer Investigational Site
      • Paisley, United Kingdom, PA2 9PN
        • Pfizer Investigational Site
    • Surrey
      • Carshalton, Surrey, United Kingdom, SM5 1AA
        • Pfizer Investigational Site
    • West Yorkshire
      • Bradford, West Yorkshire, United Kingdom, BD9 6RJ
        • Pfizer Investigational Site
  • United States
    • Connecticut
      • Hartford, Connecticut, United States, 06102-5037
        • Pfizer Investigational Site
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Pfizer Investigational Site
    • Wisconsin
      • Madison, Wisconsin, United States, 53711
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

35 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participants must have stable, documented cardiovascular disease (including at least one of the following diagnosed > 2 months prior to the Screening visit - angina, myocardial infarction (MI), revascularization, transient ischemic attack (TIA), and peripheral vascular disease (PVD).
  • Participants that smoke > 10 cigarettes / day.

Exclusion Criteria:

  • Participants with unstable cardiovascular disease
  • Cardiovascular events in the past 2 months
  • Moderate or severe chronic obstructive pulmonary disease (COPD)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: placebo
Drug: placebo
1 mg placebo twice daily by mouth for 12 weeks
Experimental: varenicline
Drug: Varenicline
1 mg twice daily by mouth for 12 weeks
Other Names:
  • Chantix, Champix

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Responders With Carbon Monoxide (CO) Confirmed 4-week Continuous Quit Rate (CQR) for Last 4 Weeks of Treatment (Trtmt)
Time Frame: weeks 9 through 12
Participants considered Responders (4-week CQR <=10 parts per million <ppm>) through reports of cigarette or other nicotine use since last study visit, confirmed by measurement of end-expiratory exhaled carbon monoxide (CO). If any CO measurement at a particular timepoint was >10 ppm, subject was considered to be Non-Responder at that timepoint.
weeks 9 through 12

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Responders With Continuous Abstinence (CA) Through Week 52
Time Frame: Week 9 through Week 52
Responders: participants who remained abstinent based on 'since the last contact' question in Nicotine Use Inventory 1) "Has participant smoked any cigarettes (even a puff) since last contact?" = No AND 2) "Has participant used any other tobacco products… since last contact?" = No. Participant a non-responder if expired CO > 10 ppm.
Week 9 through Week 52
Number of Long-Term Quit Responders
Time Frame: Week 9 through Week 52
Responders: participants were considered Long Term Quit responders if 1) they were responders for the primary endpoint (the 4-week CQR for Weeks 9-12) and 2) had no more than 6 days of smoking from Week 12 through the given visit.
Week 9 through Week 52
Number of Participants With a Seven-Day Point Prevalence of Abstinence at Week 12
Time Frame: Week 12
Responders: abstinence in previous seven days, defined in the non-treatment follow-up as: 1) "Has the participant smoked any cigarettes in the last 7 days?" = No AND 2) "Has the participant used any other tobacco products in the last 7 days?" = No. Participant a non-responder if expired CO > 10 ppm.
Week 12
Number of Participants With a Seven-Day Point Prevalence of Abstinence at Week 24
Time Frame: Week 24
Responders: abstinence in previous seven days, defined in the non-treatment follow-up as: 1) "Has the participant smoked any cigarettes in the last 7 days?" = No AND 2) "Has the participant used any other tobacco products in the last 7 days?" = No. Participant a non-responder if expired CO > 10 ppm.
Week 24
Number of Participants With a Seven-Day Point Prevalence of Abstinence at Week 52
Time Frame: Week 52
Responders: abstinence in previous seven days, defined in the non-treatment follow-up as: 1) "Has the participant smoked any cigarettes in the last 7 days?" = No AND 2) "Has the participant used any other tobacco products in the last 7 days?" = No. Participant a non-responder if expired CO > 10 ppm.
Week 52
Number of Participants With a 4 Week Point Prevalence of Smoking Cessation
Time Frame: Week 48 through Week 52 (final 4 weeks of non-treatment period [pd])
Responders: participants with abstinence during the last 4 weeks of non-treatment based on answering 'no' to both of the two 'last 4 week' questions in the Nicotine Use Inventory (NUI). NUI collected information of cigarette or other nicotine use during the study.
Week 48 through Week 52 (final 4 weeks of non-treatment period [pd])
Number of Responders With Continuous Abstinence (CA) Through Week 24
Time Frame: Week 9 through Week 24
Responders: participants who remained abstinent based on 'since the last contact' question in Nicotine Use Inventory 1) "Has participant smoked any cigarettes (even a puff) since the last contact?" = No AND 2) "Has participant used any other tobacco products… since the last contact?" = No. Non- responder if the expired CO > 10 ppm at any given timepoint.
Week 9 through Week 24
Cigarettes Smoked Per Day
Time Frame: Day 21
Cigarettes smoked each day during the first 3 weeks of the treatment phase.
Day 21
Number of Long-Term Quit Responders From Week 9 Through Week 24
Time Frame: Week 9 through Week 24
Responders: participants were considered Long Term Quit Responders if 1) they were responders for the primary endpoint (the 4-week CQR for Weeks 9-12) and 2) had no more than 6 days of smoking from Week 12 through the given visit.
Week 9 through Week 24

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pfizer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2006

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2007

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2008

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 26, 2006

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 26, 2006

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 27, 2006

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 5, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 7, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A3051049

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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