Expired Study
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Durham, North Carolina 27705


The goal of this study is to evaluate the effects of exposure to standard smoking environments on ability to resist smoking as measured with a Delay to Smoking Task. The results of this study will inform whether the Delay to Smoking Task is a sensitive measure for evaluating environment-provoked craving and smoking behavior.

Study summary:

Adult smokers (n=25) will complete 4 visits and a 6 month follow-up phone call. Participants will complete a Delay to Smoking Task following 6 hours smoking abstinence. The task involves viewing pictures of smoking and non-smoking locations and participants will have the choice to smoke a cigarette at any time during the session. A monetary reinforcer will be provided for each 6-minute period that a participant resists smoking. Once participants stop the task they can choose to smoke as much or a little as they want for the next 30 minutes. Participants will be provided with a smoking tab. Each cigarette they light will cost them from their tab. Measurements of tobacco craving, emotion ratings, and nicotine withdrawal will be assessed.


Inclusion Criteria: - generally healthy - between the ages of 18 and 55 - smoking an average of 5 cigarettes per day for at least one year - breath CO level > 8 ppm (if ≤ 8 ppm, then NicAlert Strip = 6) - no interest in quitting smoking for the duration of time required for the experiment Exclusion Criteria: - inability to attend all required experimental sessions - use of psychoactive medications - use of smokeless tobacco - current alcohol or drug abuse - use of illegal drugs as measured by urine drug screen (excluding marijuana) - current use of nicotine replacement therapy or other smoking cessation treatment - Blood Alcohol Level (BAL) > 0.00 - use of other tobacco products or e-cigarettes more than 9 days in the past 30 days



Primary Contact:

Principal Investigator
Joseph McClernon, PhD
Duke University

Backup Contact:


Location Contact:

Durham, North Carolina 27705
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source: ClinicalTrials.gov

Date Processed: January 21, 2020

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