The Effect of Varenicline (Chantix) and Bupropion (Zyban) on Smoking Lapse Behavior

January 12, 2018 updated by: Yale University
The purpose of this study is to examine how smoking cessation medications (varenicline, bupropion) affect the ability to resist smoking and also subsequent ad-lib smoking in non-treatment seeking daily smokers.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

62

Phase

  • Phase 2

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

  • United States
    • Connecticut
      • New Haven, Connecticut, United States, 06519
        • Yale Center for Clinical Investigation, Yale University

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

Ages Eligible for Study

21 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • ages 18-55
  • able to read and write in English
  • Smokers

Exclusion Criteria:

  • any significant current medical or psychiatric conditions that would contraindicate smoking
  • current Diagnostic and Statistical Manual IV abuse or dependence of other substances, other than nicotine dependence or alcohol abuse
  • positive test result at intake appointments on urine drug screens conducted for opiates, cocaine, or benzodiazepines
  • women who are pregnant or nursing
  • suicidal, homicidal, or evidence of current severe mental illness
  • participants prescribed any psychotropic drug in the 30 days prior to study enrollment
  • blood donation within the past 6 weeks
  • individuals seeking treatment for smoking cessation or have attempted to quit smoking within the past 3 months
  • specific exclusions for bupropion administration not already specified, including: have taken monoamine inhibitors in the past 6 weeks; history of anorexia or bulimia; previous hypersensitivity to bupropion; history of alcohol or drug dependence in the past year; history of seizure disorder of any etiology
  • known allergy to varenicline or taking H2blockers
  • participation within the past 8 weeks in other studies that involve additive blood sampling and/or interventional measures that would be considered excessive in combination with the current study

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
Intervention / Treatment
Placebo Comparator: Placebo
Placebo Control
Drug: Placebo
Placebo
Experimental: varenicline
varenicline 2mg/day
Drug: varenicline
2mg/day, with 1-week lead-in medication period The starting dose is 0.5 mg/day for days 1-2, followed by 0.5mg twice daily for days 3-5 and then 1mg twice daily for days 4-7. 1mg administered during laboratory session (day 8).
Other Names:
  • Chantix
Experimental: Bupropion
Bupropion 300mg/day
Drug: bupropion
300mg/day, with 1-week lead-in medication period The starting dose is 150mg/day for days 1-3, 300mg/day for days 4-7. 300mg administered during laboratory session (day 8).
Other Names:
  • Zyban

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Latency to Initiate Ad-lib Smoking Session
Time Frame: 0 to 50 minutes
minutes to start smoking (range 0 to 50 minutes)
0 to 50 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Cigarettes Smoked During the 60 Minute Ad-lib Period
Time Frame: 60 minutes
number of cigarettes smoked (range 0-8) during the 60 minute ad-lib period
60 minutes

Collaborators and Investigators

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

Sponsor

Yale University

Collaborators

National Institute on Alcohol Abuse and Alcoholism (NIAAA)

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

April 1, 2007

Primary Completion (Actual)

October 1, 2016

Study Completion (Actual)

October 1, 2016

Study Registration Dates

First Submitted

December 25, 2007

First Submitted That Met QC Criteria

December 26, 2007

First Posted (Estimate)

December 27, 2007

Study Record Updates

Last Update Posted (Actual)

February 8, 2018

Last Update Submitted That Met QC Criteria

January 12, 2018

Last Verified

January 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0702002390
  • P50AA015632 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

Clinical Trials on Smoking Lapse Behavior

Clinical Trials on Placebo

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Moldova

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe