The Impact of E-liquid Nicotine Content on Reinforcement in Current Smokers
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ClinicalTrials.gov Identifier: NCT03186911 |
Recruitment Status :
Withdrawn
(Study team decided not to move forward with study)
First Posted : June 14, 2017
Last Update Posted : August 5, 2019
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Condition or disease | Intervention/treatment | Phase |
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Tobacco Use | Behavioral: E-liquid sampling and preference assessment | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 0 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | The Impact of E-liquid Nicotine Content on Reinforcement in Current Smokers |
Estimated Study Start Date : | July 2019 |
Estimated Primary Completion Date : | September 2019 |
Estimated Study Completion Date : | September 2019 |
Arm | Intervention/treatment |
---|---|
E-liquid Group
Participants will sample two different e-liquids.
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Behavioral: E-liquid sampling and preference assessment
Participants will sample two different e-liquids that vary in nicotine content, complete questionnaires about each one, and then choose between the two e-liquids in a preference assessment task. |
- Product Evaluation Questionnaire [ Time Frame: One Day ]Ratings of the two e-liquids on a self-report questionnaire
- Preference Assessment [ Time Frame: One Day ]Choices of each of the two e-liquids on a preference assessment
- Perceived Health Risk Questionnaire [ Time Frame: One Day ]Personal Health Risk Ratings about each of the two e-liquids
- Vaping Purchase Task [ Time Frame: One Day ]Hypothetical estimates of consumption of each of the e-liquids across a variety of prices

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- At least 18 years old
- Daily cigarette smoking
- Have tried vaping devices on a minimum of one lifetime occasion
Exclusion Criteria:
- Unwilling to use a vaping device during the session
- Break alcohol level > 0.01 (g/dL)
- Pregnant, trying to become pregnant, or breastfeeding
- Systolic BP greater than or equal to 160 mm/Hg or below 90 mm/Hg
- Diastolic BP greater than or equal to 100 mm/Hg or below 50 mm/Hg
- Heart rate greater than or equal to 105 bpm or lower than 45 bpm
- A current upper respiratory infection, recent cardiac event (in the last year), Buerger disease, irregular heartbeat or arrhythmia within the last year, previous allergic or adverse reaction to nicotine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03186911
Principal Investigator: | Eric C Donny, PhD | Wake Forest University Health Sciences |
Responsible Party: | Wake Forest University Health Sciences |
ClinicalTrials.gov Identifier: | NCT03186911 |
Other Study ID Numbers: |
U54 DA031659-06 Pilot 1U54DA031659-01 ( U.S. NIH Grant/Contract ) |
First Posted: | June 14, 2017 Key Record Dates |
Last Update Posted: | August 5, 2019 |
Last Verified: | October 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |