Smoking Cessation Clinical Trial
Official title:
Smoking Cessation & Opioid Dependence Treatment Integration: Does Timing Matter?
Verified date | August 2020 |
Source | West Virginia University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The primary purpose of this study was to examine the feasibility of integrating a smoking cessation intervention for cigarette smokers enrolled in an outpatient program for opioid dependence. The secondary purpose was to compare treatment effects as a function of phase in the outpatient program: 0-90 days (weekly attendance), 90 days-1 year (biweekly attendance), and more than 1 year (monthly attendance).
Status | Completed |
Enrollment | 74 |
Est. completion date | April 10, 2017 |
Est. primary completion date | April 10, 2017 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - enrolled in the Comprehensive Opioid Addiction Treatment (COAT) program - report smoking >10 cigarettes per day for >1 year - provide an expired air carbon monoxide (CO) reading of >10 parts/million (ppm) - report interest in making a quit attempt in the next 1-6 months (Contemplation or Preparation stages via the Stage of Change; Prochaska & Diclemente, 1983) - willing to try varenicline for smoking cessation Exclusion Criteria: - current engagement in any form of tobacco cessation (e.g., pharmacotherapy) - current use of contraindicated medications (e.g., theophylline, warfarin, insulin) - Stage of Change category as Precontemplation (no plans to quit), Action (actively trying to quit), or Maintenance (have already quit) - self-reported seizures in the past year - untreated cardiovascular disease - self-report breast-feeding - pregnancy (verified by urinalysis) - not within 4 weeks of advancing to the next COAT group |
Country | Name | City | State |
---|---|---|---|
United States | West Virginia University Chestnut Ridge Center | Morgantown | West Virginia |
Lead Sponsor | Collaborator |
---|---|
West Virginia University | National Institute on Drug Abuse (NIDA), Pfizer |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Recruitment, Assignment to Treatment, and Retention Rates | For primary feasibility outcomes, recruitment, assignment to treatment, and retention rates were analyzed using descriptive statistics. | up to 12 weeks | |
Primary | Percentage of Days on Which Participants Experienced Each Reason for Attrition | Drug withdrawal and medication side effect ratings were assessed as potential reasons for attrition. This assessment was completed by calculating the mean percentage of days, out of the first four weeks, during which effects were reported by participants who completed the entire 12-week protocol versus participants that dropped out. We limited this analysis to the first four weeks. | up to 4 weeks | |
Primary | Number of Study Days With Protocol Non-Adherence | Medication non-adherence rates: The number of study days on which participants a) self-reported not taking the medication (i.e. provided a response of "no") or b) had a missing medication response (i.e. provided no response) via text message. Text-messaging non-adherence rates: The number of study days in which participants failed to respond to one or more assessments measured via text message. |
up to 12 weeks | |
Primary | Medication Acceptability for Completers | Side effect ratings of nausea, headache, sleep problems, gas/constipation, abnormal dreams, depressed mood, and drowsy; scores ranged from 0-10 and higher scores indicate more severe symptoms. | up to 12 weeks | |
Secondary | Number of Participants With Cigarette Smoking Quit Attempts and Actual Quit | A quit attempt was defined as at least one study day on which 0 cigarettes smoked was reported via text message. Actual quit rates were determined by biochemically verified cigarette abstinence, which was an expired air carbon monoxide reading of < 8 parts per million (ppm). | Up to 12 weeks | |
Secondary | Number of Study Days Until First Cigarette Quit Attempt | A quit attempt was defined as at least one day on which participants reported 0 cigarettes smoked via text message. Reports of >0 cigarettes on subsequent days was indicative of relapse. | up to 12 weeks | |
Secondary | Cigarettes Smoked Per Day | The number of cigarettes smoked per day were reported via text message by participants daily. These numbers were averaged within weeks to give 12 separate average weekly values for cigarettes per day. | up to 12 weeks | |
Secondary | Drug Withdrawal Ratings | Average self-reported ratings for craving, irritability, restless, alert, bored, calm/relaxed, able to focus, nervous, and other; scores ranged from 0-10 and higher scores indicate higher levels of that withdrawal effect | up to 12 weeks | |
Secondary | Expired Air Carbon Monoxide | Expired air carbon monoxide levels were measured for participants every 4 weeks at their in-person study visits, resulting in 4 separate measures across the 12-week period. | up to 12 weeks | |
Secondary | Number of Participants With Relapse for Illicit Drugs (Opioids, Cocaine, THC, Etc) | Relapse was determined by semi-quantitative urine testing (positive vs negative result). Positive results for illicit drugs were assessed separately (opioids, cocaine, THC, benzodiazepines, amphetamines, and atypical antipsychotics). | up to 12 weeks | |
Secondary | Readiness to Quit Smoking | The Readiness to Quit Ladder was administered to participants at each of their in-person study visits, for a total of 4 data collections. Participants were asked to indicate their readiness to quit smoking on a scale ranging from 0 (I have no interest in quitting smoking) to 10 (I have already quit smoking). | up to 12 weeks | |
Secondary | Number of Participants That Moved in Stage of Change for Quitting Smoking | Participants indicated one of the following stages of change at each of their four in-person study visits: Precontemplation (no plans to quit smoking), Contemplation (plans to quit smoking in the next 6 months), Preparation (plans to quit smoking in the next 30 days), Action (currently engaging in quitting smoking), or Maintenance (quit smoking more than 6 months ago). Data were quantified by determining the number of participants who moved towards quitting (i.e., moved up one or more stages), the number of participants who moved away from quitting (i.e., moved down one or more stages), and and the number of participants who remained in the same stage. |
up to 12 weeks |
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