N/A
N=88
Effects of Smoking Environments on Craving and Smoking (CameraCue2.0)
Cigarette Smoking
Bottom Line
View on ClinicalTrials.gov: NCT02551692 ↗Enrolled (actual)
88
Serious AEs
2.3%
Results posted
Jan 2020
Primary outcome: Primary: Change in Craving Score During Cue Exposure Task — -11.17; -8.84; -14.29 score on a scale — p=0.534
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Nicotine Patch (Drug); Varenicline (Drug); Placebo Nicotine Patch (Drug); Placebo Capsule (Drug)
- Age
- Adult · 18+ yrs
- Sex
- All
- Sponsor
- Duke University
- Primary completion
- Jan 2019
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Change in Craving Score During Cue Exposure Task |
-11.17; -8.84; -14.29 | 0.534 |
| PRIMARY Change in Latency to Smoke During Cue Exposure Task |
30.22; 48.04; 65.15 | 0.26 |
| PRIMARY Change in Smoke Intake During Cue Exposure Task |
14.42; 12.21; 12.98 | 0.318 |
Summary
The goal of this study is to evaluate the effects of varenicline versus nicotine replacement versus placebo on personal smoking environment cue (PSE) reactivity. The results of this study will inform whether first-line pharmacotherapies for nicotine dependence (e.g. nicotine patch, varenicline) alter reactivity to environment cues. The investigators propose to identify 120 regular cigarette smokers who will complete 10 visits (1 screening visit, 1 training visit, 1 camera turn-in 2 cue exposure sessions and 4 post-quit medication check sessions). Smokers will be randomized to one of three medication conditions: placebo (PLAC; n=40), transdermal nicotine patch (NRT; n=40) or varenicline (VAR; n=40) in a double blind, double-dummy design. Reactivity variables (craving, latency to smoke, and smoke intake) will be entered into 3 (Medication: NRT, VAR, PLAC) x 2 (Environment: smoking, nonsmoking) repeated measures ANOVAs with random-effects. The investigators hypothesize that personal smoking, as compared to nonsmoking environments, will be associated with greater reactivity (i.e. increased craving and smoke intake; decreased latency to smoke). A Medication x Environment interaction will be characterized by decreased reactivity to smoking as compared to nonsmoking environments in the VAR and NRT groups as compared to the PLAC group.
Eligibility Criteria
Inclusion criteria
- generally healthy [(i.e. ambulatory, not currently sick)]
- between the ages of 18 and 60
- smoking of at least 5 cig/day of a brand delivering ≥ 0.5 mg nicotine (FTC method) for > 1 year
- an expired CO concentration of at least 10 ppm (to confirm inhalation) or urinary cotinine >1000 ng/mL (NicAlert = 6).
- interest in quitting smoking within the timeframe of the experiment.
- ability to identify 4 personal smoking and 4 personal non-smoking places.
Exclusion criteria
- immediate or no desire to quit smoking;
- inability to attend all required experimental sessions;
- use of psychoactive medications;
- use of smokeless tobacco including e-cigarettes in the past 30 days;
- current alcohol or drug abuse;
- use of illegal drugs as measured by urine drug screen (excluding marijuana);
- use of experimental (investigational) drugs;
- current use of nicotine replacement therapy or other smoking cessation treatment;
- Hypertension (systolic >140 mm Hg, diastolic >100 mm Hg, coupled with a history of hypertension); subjects with no previous diagnosis of hypertension may have a screening blood pressure up to 160/100. Participants with a history of hypertension may, however, be allowed to participate in the study if the study physician determines that the condition is stable, controlled by medication, and in no way jeopardizes the individual's safety;
- Hypotension with symptoms (systolic 9 (or who score >0 on item #9 ("Thoughts that you would be better off dead, or of hurting yourself in some way") will be excluded from study participation, and, at the discretion of the study physician, referred to appropriate psychiatric treatment;
- Bulimia or anorexia;
- Significant adverse reaction to Chantix/Varenicline in the past;
- Currently pregnant, breast feeding or likely to become pregnant;
- History of seizure disorder.
- A quit attempt within the last 30 days
Data sourced from ClinicalTrials.gov (NCT02551692). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.