Vaping
Conditions
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.
Interventions
OTHERControl task and Trier Social Stress Task
Same as Arm
Sponsors
University of Vermont
Clemson University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Intervention model description
Parallel Assignment
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* 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
Exclusion criteria
* Current smokers * Psychiatric or medical condition based * Using a prescription medication other than birth control
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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). |
Countries
United States
Outcome results
None listed