Modeling Stress-precipitated Vaping Behavior
- Conditions
- Vaping
- Interventions
- Other: Control task and Trier Social Stress Task
- Registration Number
- NCT04522362
- Lead Sponsor
- Clemson University
- Brief Summary
The primary aims of this pilot study were to (1) initially validate the applicability of a human laboratory model of relapse initially developed for smokers to e-cigarette users; (2) to use this human laboratory model of lapse behavior to examine the effects of acute psychological stress on vaping-lapse behavior among adults who are experienced, e-cigarette users.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 51
- at least 18 years old
- e-cigarette users
- using ≥1 mL of e-cigarette liquid per day with a nicotine concentration of ≥3mg/ml
- had used an e-cigarette for at least three months
- Current smokers
- Psychiatric or medical condition based
- Using a prescription medication other than birth control
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Experimental Task- Trier Social Stress Task Control task and Trier Social Stress Task The Trier Social Stress Task (TSST) is a standardized, 15-minute laboratory task designed to induce psychological stress in laboratory settings (Kirschbaum, Pirke, \& Hellhammer, 1993). The TSST consists of three continuously successive phases: (a) an anticipation period (5 min); (b) a free speech task (5 min); and (c) a mental arithmetic task (5 min). As is standard in the TSST procedure, participants were told by a research staff member that they would provide a brief speech about "their dream job" in front of a critical audience. At the end of the speech, a member of the audience instructed the participant to conduct serial subtractions as accurately and quickly as possible. Control task- Control task and Trier Social Stress Task The Control Task was implemented to ensure the specificity of the psychological stress effects had on study outcomes. Therefore, the Control Task had a similar procedure and the same duration of the TSST, lacking except for only the psychologically stressful component. The control task consisted of (a) Participants had a 5-min a preparation section and anticipation phase (5 min ), (b) a reading task where they had to. Then, all participants had to be read a simple text in a low voice (5 min), and (c) an arithmetic section where they were asked to perform an easy mathematical calculation (5 mins).
- Primary Outcome Measures
Name Time Method latency to initiate ad-lib vaping session (in minutes) During the two laboratory sessions which occur within 1 week after screening/baseline. Time to vaping during the vaping delay task. Range of time delay is 0 minutes to 50 minutes.
number of puffs purchased and consumed during the self-administration period During the two laboratory sessions which occur within 1 week after screening/baseline Number of e-cigarette uses purchased during the self-administration phase of the vaping delay task. Range of puffs is 0 to 20.
- Secondary Outcome Measures
Name Time Method Craving The VAS will be collected at each laboratory session (within 1 week after screening/baseline) 5 times: baseline (pre task), post task (+15 minutes), decision to smoke (+20 minutes), +30 minutes smoking ab-lib, and +60 minutes during smoking ab-lib Craving was measured using a visual analogue scale (VAS) asking "How much do you crave an e-cigarette right now?" with possible responses ranging from 0 (not at all) to 100 (extremely).
Stress The VAS will be collected at each laboratory session (within 1 week after screening/baseline) 5 times: baseline (pre task), post task (+15 minutes), decision to smoke (+20 minutes), +30 minutes smoking ab-lib, and +60 minutes during smoking ab-lib Stress was measured using a visual analogue scale (VAS) asking: "How stressed or anxious do you feel right now?" with possible responses ranging from 0 (not at all) to 100 (extremely).
Trial Locations
- Locations (1)
University of Vermont
🇺🇸Burlington, Vermont, United States