Clinical trial NCT00217984: Intensive Intervention for Smokers - 6
Official title: Intensive Intervention for Smokers in Alcohol Treatment
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Tobacco Use Disorder
Alcohol Dependence
Keywords: Tobacco use disorder
Alcohol dependence
Lead sponsor: University of California, San Francisco
Sponsor class: OTHER
Collaborators: name: National Institute on Drug Abuse (NIDA)
First posted: 2005-09-22
Enrollment: 162
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The purpose of this study was to determine the efficacy and cost-effectiveness of an intensive smoking cessation intervention that utilizes extended cognitive-behavioral therapy and combination nicotine replacement (CNR) in a randomized controlled trial. The intensive intervention was compared to usual care involving referral to a free-standing smoking cessation program that provides brief counseling and CNR. We recruited 162 smokers, ages 18 to 75, who are enrolled in the Drug and Alcohol Treatment (DAT) programs at the San Francisco VA Medical Center (SFVAMC) and Santa Rosa VA Community-based Outpatient Clinic (CBOC). To be eligible, participants had to be abstinent from alcohol for at least one week, but not more than 30 days. We compared outcomes for the two study arms by assessing biochemically-validated point-prevalence smoking status at 3, 6, 9, and 12 months post-baseline and continuous abstinence over the 12-month follow-up. Expired-air carbon monoxide (CO) was used to biochemically verify 7-day point prevalence abstinence. We also conducted an economic analysis to determine the cost-effectiveness of the intensive intervention compared with usual care. We also examined cross-relapse patterns during the follow-up period, assessing changes in mood states and use of tobacco, alcohol, and other drugs at 3, 6, 9, and 12 months.

Detailed description: Introduction. The purpose of this study was to investigate the efficacy of an intensive tobacco cessation intervention for alcohol-dependent smokers in early recovery.

Methods. A total of 162 alcohol-dependent smokers were randomized to either intensive intervention for smoking cessation or usual care. The intensive intervention consisted of 16 sessions of individual cognitive behavior therapy (CBT) and combination nicotine replacement therapy that lasted 26 weeks. Usual care involved referral to a free-standing smoking cessation program that provided smoking cessation counseling of varying duration and guideline-concordant medications. The primary cessation outcome was verified 7-day point prevalence abstinence (PPA) at 12, 26, 38, and 52 weeks.

Results. At 12 and 26 weeks, the verified 7-day point-prevalence quit rate was significantly higher for the intensive intervention group than for the usual care group (both p = .03). However, the quit rates for the two treatment groups were not significantly different at 38 or 52 weeks. Verified 30-day alcohol abstinence rates were not significantly different for the two treatment groups at any of the follow-up assessments.

Conclusions. The intensive smoking cessation intervention yielded a higher short-term smoking quit rate without jeopardizing sobriety. A chronic care model might facilitate maintenance of smoking cessation during the first year of alcohol treatment and perhaps for longer periods of time. It is hoped that studies such as this will inform the development of more effective interventions for concurrent alcohol and tobacco use disorders.

Eligibility criteria: Inclusion Criteria:

* at least 18 years of age
* alcohol as primary drug of abuse
* currently smoking at least 10 or more cigarettes
* abstinent from alcohol for at least 7 days and not more than 30 days
* self-reported interest in quitting smoking

Exclusion Criteria:

* any contraindications for nicotine patches or lozenges (e.g., unstable angina or recent myocardial infarction
* skin allergy to the nicotine patch
* severe cardiovascular disease
* lactation
* pregnancy by self-report or by positive serum pregnancy test in pre-menopausal women)
* unstable psychiatric disorder
* severe cognitive impairment

Primary outcomes:
measure: 7 day point prevalence of cigarette abstinence
timeFrame: Assessed at 3, 6, 9, and 12 months
Secondary outcomes:
measure: Alcohol use
timeFrame: Assessed at 3, 6, 9, and 12 months
Other outcomes:
Locations:
city: San Francisco
country: United States
facility: VA Medical Center
state: California
Study officials:
affiliation: University of California, San Francisco
name: Timothy Carmody, Ph.D.
role: PRINCIPAL_INVESTIGATOR
References: