CClinicalTrials.gg
CompletedNCT04996940Updated Sep 13, 2023Results posted

Comparative Acceptability of Tobacco and Menthol Flavored E-cigarettes

An interventional study of E-cigarette product in Tobacco Use Disorder, sponsored by University of Kansas Medical Center. Completed at 1 site in United States. Open to participants aged 21 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-09-13.

Sponsored by University of Kansas Medical Center · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
52
Allocation
Randomized
Ages
21 Years and older
Sex
All
01

Study summary

The study is a randomized crossover trial. Current menthol smokers will complete a session with each flavor of an electronic cigarette: menthol and tobacco. The objective of this survey is to assess for flavor preference.

Read the detailed description

Participants who report typically smoking menthol cigarettes will be invited to complete a session. Participants will undergo overnight tobacco/nicotine abstinence before the visit (eCO\<12ppm). Participants will then be randomized 1:1 to e-cigarette flavor order (tobacco e-cigarette, menthol e-cigarette). They will complete a 30-minute ad libitum session with the first product, based on randomization, followed by a 1.5 hour standard washout period, followed by a 30-minute ad libitum vaping session with the second product. Throughout each session, puff topography will be measured via a pressure sensor attached to the e-cigarette device. Participants will complete self-report measures of smoking urges and withdrawal symptoms pre- and post-vaping session. In addition, they will complete measures of subjective vaping experience, perceptions of flavor, product demand, and intentions for future use.

02

Conditions studied

  • Tobacco Use Disorder

Browse trials for

Keywords

  • tobacco
  • e-cigarette
03

In context

Tobacco Use Disorder

968 studies on the registry are indexed under Tobacco Use Disorder; 126 are open to participants now.

This study's enrollment of 52 is below the median of 89 across 851 interventional studies indexed under Tobacco Use Disorder.

Browse Tobacco Use Disorder studies →

Lead sponsor

University of Kansas Medical Center is the lead sponsor of 483 studies on the registry; 113 are open to participants now.

Of its 38 completed or terminated interventional studies of FDA-regulated products, 24 (63%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • typically smoking menthol cigarettes
  • Non-Hispanic African American or white/Caucasian,
  • ≥21 years old, smoke 5-30 cigarettes per day,
  • daily cigarette smoker
  • smoked at current rate for at least 6 months
  • interested in trying e-cigarettes
  • not interested in or unable/unwilling to quit cigarette smoking
  • willing to complete one in-person study visits

Exclusion criteria

Exclusion Criteria:

  • Interested in quitting cigarettes in the next 30 days
  • use of smoking cessation pharmacotherapy in the past 30 days
  • use of non-cigarette tobacco products in the past 30 days
  • use of e-cigarettes >5x in lifetime
  • use of e-cigarettes ≥4 of the past 30 days
  • weight \< 110 lbs
  • uncontrolled hypertension (systolic BP ≥ 180 or diastolic BP ≥ 105)
  • pregnant, plans to become pregnant, or breastfeeding
  • live >10 miles from study site (Fairway CRU)
  • current enrollment is a research study or program that aims to alter tobacco use
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
52 participants (actual)

Study arms

  • Experimental
    Tobacco then Menthol

    A 30-minute session with tobacco flavor then a 30-min session with menthol flavor

    Device: E-cigarette product

  • Experimental
    Menthol then tobacco

    A 30-minute session with menthol flavor then a 30-min session with tobacco flavor

    Device: E-cigarette product

Interventions

  • DeviceE-cigarette product

    Participants will be randomized 1:1 to e-cigarette flavor order either: 1. tobacco e-cigarette 2. menthol e-cigarette

06

What researchers measure

Primary outcomes

  1. Questionnaire Scale "Intentions for Future Use"

    Using the questionnaire scale "Intentions for Future Use" How much each participant intends to use the products in the future. Scale: "Think about the product you just used. If this was the only flavor available, how likely would you be to try this flavor again? 1. Extremely unlikely 2. Unlikely 3. Neutral 4. Likely 5. Extremely likely The range of observed responses from participants for both groups was 1-5. Not all participants completed all study measures so the number of respondents is lower than enrolled.

    Time frame: during the intervention

Secondary outcomes

  1. Questionnaire Scale "Subjective Vaping Experience"

    Please indicate how you are feeling right now on a scale from 0 to 100 where 0 is not at all and 100 is extremely. How pleasant would the e-cigarette be to use right now? The observed range of responses from participants for both arms was 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

    Time frame: during the intervention

  2. Questionnaire Scale "Perceptions of Flavor"

    On a scale from 0 to 100 where 0 is not at all and 100 is extremely, to what extent did you like the flavor you just used? The observed range of responses from participants in both arms was from 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

    Time frame: during the intervention

  3. Questionnaire Scale "Product Demand"

    On a scale from 0 to 100 where 0 is not at all and 100 is extremely, how willing would you be to use the flavor you just used again in the future? The observed range of responses from participants in both arms was from 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

    Time frame: during the intervention

07

Results

Posted Sep 13, 2023

Participant flow

Participant flow — Overall Study
MilestoneTobacco Flavor Pod Then Menthol Flavor PodMenthol Flavor Pod Then Tobacco Flavor Pod
Started2824
Completed2824
Not completed00

Outcome measures

PrimaryQuestionnaire Scale "Intentions for Future Use"

Using the questionnaire scale "Intentions for Future Use" How much each participant intends to use the products in the future. Scale: "Think about the product you just used. If this was the only flavor available, how likely would you be to try this flavor again? 1. Extremely unlikely 2. Unlikely 3. Neutral 4. Likely 5. Extremely likely The range of observed responses from participants for both groups was 1-5. Not all participants completed all study measures so the number of respondents is lower than enrolled.

Time frame:
during the intervention
Reported as:
Mean · units on a scale
Questionnaire Scale "Intentions for Future Use"
units on a scaleTobaccoMenthol
Questionnaire Scale "Intentions for Future Use"3.1 (1 to 5)3.7 (1 to 5)
SecondaryQuestionnaire Scale "Subjective Vaping Experience"

Please indicate how you are feeling right now on a scale from 0 to 100 where 0 is not at all and 100 is extremely. How pleasant would the e-cigarette be to use right now? The observed range of responses from participants for both arms was 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

Time frame:
during the intervention
Reported as:
Mean · units on a scale
Questionnaire Scale "Subjective Vaping Experience"
units on a scaleTobaccoMenthol
Questionnaire Scale "Subjective Vaping Experience"38.0 (0 to 100)48.1 (0 to 100)
SecondaryQuestionnaire Scale "Perceptions of Flavor"

On a scale from 0 to 100 where 0 is not at all and 100 is extremely, to what extent did you like the flavor you just used? The observed range of responses from participants in both arms was from 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

Time frame:
during the intervention
Reported as:
Mean · units on a scale
Questionnaire Scale "Perceptions of Flavor"
units on a scaleTobaccoMenthol
Questionnaire Scale "Perceptions of Flavor"34.0 (0 to 100)51.0 (0 to 100)
SecondaryQuestionnaire Scale "Product Demand"

On a scale from 0 to 100 where 0 is not at all and 100 is extremely, how willing would you be to use the flavor you just used again in the future? The observed range of responses from participants in both arms was from 0 to 100. Not all participants completed all study measures so the number of respondents is lower than enrolled.

Time frame:
during the intervention
Reported as:
Mean · units on a scale
Questionnaire Scale "Product Demand"
units on a scaleTobaccoMenthol
Questionnaire Scale "Product Demand"38.7 (0 to 100)49.7 (0 to 100)

Adverse events

Collected over Adverse events were assessed for each participant during the study which ranged from 1 week to 1 month, and were assessed at 6 months after last study visit completion for each participant, a total of up to 7 months.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Tobacco Pod0/52 (0%)0/52 (0%)0/52 (0%)
Menthol Pod0/52 (0%)0/52 (0%)0/52 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Tobacco Then MentholMenthol Then TobaccoTotal
Mean54.0 (32 to 70)56.0 (23 to 77)55 (23 to 77)
Sex: Female, Male
Sex: Female, Male(Participants)Tobacco Then MentholMenthol Then TobaccoTotal
Female121022
Male161430
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Tobacco Then MentholMenthol Then TobaccoTotal
Hispanic or Latino000
Not Hispanic or Latino282452
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Tobacco Then MentholMenthol Then TobaccoTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American252146
White336
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Tobacco Then MentholMenthol Then TobaccoTotal
United States282452
08

Study locations

1 site
  • University of Kansas Medical Center
    Kansas City, Missouri 66160, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Jan 11, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 13, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04996940
Lead sponsor
University of Kansas Medical Center
Responsible party
Sponsor
First posted
Aug 9, 2021
Start date
Jun 20, 2021
Primary completion
Aug 15, 2021
Completion
Aug 15, 2021
Results posted
Sep 13, 2023
Last update
Sep 13, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion