The purpose of this study is to determine whether the addition of bupropion (Zyban) to cognitive behavioral therapy (CBT) will enhance longer-term tobacco abstinence in women.

Condition	Treatment or Intervention	Phase
Tobacco Use Disorder	Behavior: Bupropion	Phase IV

Further Study Details: 

Expected Total Enrollment:  357

Although rates of smoking have declined, the decrease in prevalence has been much less pronounced in women than in men, and women are particularly vulnerable to ongoing smoking-related morbidity and mortality. One important reason for gender differences in smoking cessation is concern about cessation-related weight gain among women, which is associated with poorer cessation outcome. We previously documented that cognitive behavior therapy to minimize weight concerns (CBT) was effective in promoting cessation and controlling weight gain among weight concerned women smokers. The current study is a randomized, double-blind, controlled trial to determine whether the addition of bupropion (Zyban) to CBT (12 sessions over 14 weeks, with 6 booster sessions) will enhance longer-term abstinence. Bupropion was the clear medication of choice for this trial because it is efficacious in promoting smoking cessation, attenuates cessation-related weight gain (particularly in women), and relieves negative mood, which appears more common in weight-concerned women. Four hundred fifty weight concerned women smokers will be randomized to either CBT for weight concerns plus standard cessation or standard smoking cessation only and six months of either bupropion (Zyban) or placebo (2 x 2 design). Primary outcome will be rates of smoking abstinence at 1 year and time to relapse across the four treatment conditions. In addition, we will determine the effects of these treatments on tobacco withdrawal, mood, and weight. Results of this investigation will provide information on the relative efficacy of the CBT intervention and bupropion alone and in combination and the utility of drug and counseling strategies that are specifically tailored for a high-risk population.

Ages Eligible for Study:  18 Years   -   65 Years,  Genders Eligible for Study:  Female

Criteria

Inclusion Criteria:

• Smoke at least 10 cigarettes per day
• Report concern about cessation-related weight gain
• Motivated to quit smoking

Exclusion Criteria:

• Currently pregnant, lactating, or no medically approved method of contraception
• Major medical problem
• History of seizure disorder or head injury
• Current or historical psychosis or bipolar disorder
• History of alcohol or substance abuse within previous year
• Current or historical eating disorder
• Use of antidepressant medication, monoamine oxidase inhibitor or lithium with previous month
• Multiple Drug Allergies
• Current major depressive disorder

Pennsylvania
      Western Psychiatric Institute & Clinic, Pittsburgh,  Pennsylvania,  15213 2593,  United States

Study chairs or principal investigators

Marsha Marcus, Ph.D.,  Principal Investigator,  Western Psychiatric Institute & Clinic   

Study ID Numbers:  NIDA-04174-1; R01-04174-1
Record last reviewed:  September 2000
Last Updated:  February 16, 2005
Record first received:  August 9, 2000
ClinicalTrials.gov Identifier:  NCT00006170
Health Authority: United States: Federal Government
ClinicalTrials.gov processed this record on 2005-04-08