Tobacco UseNCT03943706
E-Cigarette and Cigarette Nicotine Delivery and Abuse Liability in Cigarette Smokers and Dual Users
An observational study of Tobacco Use, run by University of Oklahoma at 1 site in United States.
Trial summary
The FDA has shown clear interest in strategies that will reduce the public health burden of tobacco use. One proposed strategy includes banning the sale of fully nicotinized cigarettes and only allowing VLNCs (Very Low Nicotine Cigarettes) to be sold. Read more about this study
- Who is it for?
- Ages 18 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Tobacco Use
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Jun 2019to 1 Dec 2019
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: A sample of 40 current cigarette smokers (n=20) and dual e-cigarette and cigarette users (n=20) who are willing to use/try an alternative nicotine-delivery device will be recruited via advertisements/ recruitment materials (e.g., craigslist, ads on OSU, OU, and UCO campuses, OUHSC, email) and referrals. Participants will live in the Oklahoma City, OK metro area. Participants will be provided information about the study and provide initial consent for screening via an online screener.
Who may be able to join
- be at least 18 years old
- live within 30 miles of the research site
- interested in/willing to use an e-cigarette during study visits
- be willing and able to complete study procedures including specimen collection, survey completion, and remaining nicotine abstinent for 12 hours prior to each study visit
- speak and understand English
- willing to provide informed consent
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- bring usual brand cigarettes to screener study visit.
- Additional Inclusion criteria for smokers:
- smoke at least 10 cigarettes per day for the past three months,
- exhaled more than equal to 6 ppm carbon monoxide at the screener visit.
- Additional Inclusion criteria for dual users:
- smoke more than equal to 5 tobacco cigarettes per day for the last 3 months,
- use e-cigarettes at least 15 days per month for the last 3 months, and
- bring e-cigarette device to screener study visit.
Who cannot join
- currently suffering from lung disease including asthma, cystic fibrosis (CF), or chronic obstructive pulmonary disease (COPD), unless it is well-controlled,
- currently pregnant or breast-feeding or have plans to become pregnant or begin breast-feeding at any point during the study,
- intoxicated at study visits (breath alcohol testing and clean urine drug screen),
- any known allergies or sensitivity to the known major constituents contained in the aerosol of the study e-cigarette devices (e.g., flavorants, vegetable glycerin, propylene glycol),
- User of zero-nicotine e-cigarettes,
- smokes mentholated cigarettes regularly,
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- history of cardiac event or distress within the past 3 months.
- Additional Exclusion criteria for smokers:
- have previously used any e-cigarette device (cig-a-like, pen style, mod, APV) for longer than 30 days
- use of an e-cigarette device over the past 14 days.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Oklahoma Health Sciences Center Oklahoma Tobacco Research Center
Oklahoma City, Oklahoma, 73104
About this study
Official title: Investigation of Electronic Cigarette and Cigarette Nicotine Delivery and Abuse Liability in Cigarette Smokers and Dual Users
The FDA has shown clear interest in strategies that will reduce the public health burden of tobacco use. One proposed strategy includes banning the sale of fully nicotinized cigarettes and only allowing VLNCs (Very Low Nicotine Cigarettes) to be sold. While there are concerns regarding the unintended consequences (e.g., black market sales of fully nicotinized cigarettes) of such bans, research is needed to understand how smokers and dual users will act in the potential market. The overall aim of the current research is to understand purchasing and product choice behaviors of tobacco/nicotine users if the proposed ban were to go into effect.
Read the detailed description
Tobacco use continues to be the leading cause of preventable death in the US, with the majority of deaths due to combustible tobacco use. Electronic cigarettes (e-cigarettes) may represent a nicotine delivery device that addresses cravings and nicotine withdrawal and is much less harmful compared to cigarettes, particularly if completely substituted for cigarettes. The Food and Drug Administration (FDA) recently set forth plans that include the possibility of regulating the level of nicotine in combustible cigarettes to make them non-addictive and disallowing the sale of fully nicotinized cigarettes. While studies have shown that lowering the level of nicotine in cigarettes leads to high quit rates and would likely have a positive overall public health impact, there are concerns that doing so will lead to a black market for purchasing fully nicotinized cigarettes. However, no empirical evidence currently exists regarding this possible unintended consequence of the proposed regulation and the current project aims to fill this gap. Current smokers and dual cigarette and e-cigarette users will complete three in-lab study visits. Following screening and practice with all study products, participants will complete standardized 10-puff bouts for three e-cigarettes, the VLNCs (Very Low Nicotine Cigarettes), and their usual brand cigarette. They will then complete three concurrent choice tasks. The tasks will simulate 1) the current market, in which e-cigarettes and fully nicotinized cigarettes are available, 2) the potential future market in which e-cigarettes and VLNC (Very Low Nicotine Cigarettes) are freely available and nicotinized cigarettes are banned, and 3) the potential future market in which only tobacco flavored e-cigarettes and VLNCs (Very Low Nicotine Cigarettes) are freely available and nicotinized cigarettes are banned. Understanding, in an environment where VLNCs (Very Low Nicotine Cigarettes) are the only cigarettes available, current smokers' and dual users' product choices will fill an important gap in the research and inform regulation of these products.
- Conditions
- Tobacco Use
- Keywords
- e-cigarettes, JUUL brand e-cigarette, NJOY brand e-cigarette, EVOLV brand mod e-cigarette, Very Low Nicotine Cigarettes (VLNCs)
- Medical subject headings
- Tobacco Use, Vaping
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Exclusive cigarette smokers | Exclusive cigarette smokers must smoke at least 10 cigarettes per day for the past three months and have exhaled carbon monoxide (eCO) levels of at least 6 ppm at the screening visit. | |
| Dual (Electronic cigarette and cigarette smoking) users | Dual e-cigarette and cigarette users must have smoked at least 5 cigarettes per day for the last 3 months and use e-cigarettes at least 15 days per month for the last 3 months. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Nicotine delivery measured by serum (blood) nicotine
Participants will complete one standardized puffing bout (10 puffs) with each of the three electronic cigarettes, usual brand cigarette and Very Low Nicotine Cigarettes (VLNCs). Serum nicotine will be measured throughout each standardized puffing bout. Greater levels of serum nicotine will be indicative of greater nicotine delivery.
Measured: 1 month
Proportion of puffs earned and allocated to each product in three hypothetical tobacco regulatory scenarios
Participants will complete three computer tasks simulating hypothetical regulatory scenarios and will earn and allocate puffs to study products. A greater proportion of puffs allocated will indicate greater demand for the product in that hypothetical scenario
Measured: 1 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 May 2019
- Study start1 Jun 2019 (estimated)
- Primary completion1 Dec 2019 (estimated)
- Study completion1 Dec 2019 (estimated)
Why it stopped: The investigator moved to another institution, therefore the study was never initiated.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tobacco UseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Oklahoma
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Theodore Wagener, PhD, Principal investigator, University of Oklahoma
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03943706
- Sponsor's protocol ID
- 8841
- Status last verified
- Dec 2020
- First submitted
- 7 May 2019
- Last updated
- 19 Dec 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 19 Dec 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of Electronic Cigarette and Cigarette Nicotine Delivery and Abuse Liability in Cigarette Smokers and Dual Users
- ClinicalTrials.gov ID
- NCT03943706
- Acronym / sponsor ID
- 8841
- Conditions
- Tobacco Use
- Keywords
- e-cigarettes, JUUL brand e-cigarette, NJOY brand e-cigarette, EVOLV brand mod e-cigarette, Very Low Nicotine Cigarettes (VLNCs)
- Study type
- Observational
- Recruitment status
- WithdrawnReason stopped: The investigator moved to another institution, therefore the study was never initiated.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- University of OklahomaUniversity, hospital or other
- Study start
- 1 Jun 2019 (estimated)
- Primary completion
- 1 Dec 2019 (estimated)
- Study completion
- 1 Dec 2019 (estimated)
- First posted
- 9 May 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The FDA has shown clear interest in strategies that will reduce the public health burden of tobacco use. One proposed strategy includes banning the sale of fully nicotinized cigarettes and only allowing VLNCs (Very Low Nicotine Cigarettes) to be sold. While there are concerns regarding the unintended consequences (e.g., black market sales of fully nicotinized cigarettes) of such bans, research is needed to understand how smokers and dual users will act in the potential market. The overall aim of the current research is to understand purchasing and product choice behaviors of tobacco/nicotine users if the proposed ban were to go into effect.
Detailed description
Tobacco use continues to be the leading cause of preventable death in the US, with the majority of deaths due to combustible tobacco use. Electronic cigarettes (e-cigarettes) may represent a nicotine delivery device that addresses cravings and nicotine withdrawal and is much less harmful compared to cigarettes, particularly if completely substituted for cigarettes. The Food and Drug Administration (FDA) recently set forth plans that include the possibility of regulating the level of nicotine in combustible cigarettes to make them non-addictive and disallowing the sale of fully nicotinized cigarettes. While studies have shown that lowering the level of nicotine in cigarettes leads to high quit rates and would likely have a positive overall public health impact, there are concerns that doing so will lead to a black market for purchasing fully nicotinized cigarettes. However, no empirical evidence currently exists regarding this possible unintended consequence of the proposed regulation and the current project aims to fill this gap. Current smokers and dual cigarette and e-cigarette users will complete three in-lab study visits. Following screening and practice with all study products, participants will complete standardized 10-puff bouts for three e-cigarettes, the VLNCs (Very Low Nicotine Cigarettes), and their usual brand cigarette. They will then complete three concurrent choice tasks. The tasks will simulate 1) the current market, in which e-cigarettes and fully nicotinized cigarettes are available, 2) the potential future market in which e-cigarettes and VLNC (Very Low Nicotine Cigarettes) are freely available and nicotinized cigarettes are banned, and 3) the potential future market in which only tobacco flavored e-cigarettes and VLNCs (Very Low Nicotine Cigarettes) are freely available and nicotinized cigarettes are banned. Understanding, in an environment where VLNCs (Very Low Nicotine Cigarettes) are the only cigarettes available, current smokers' and dual users' product choices will fill an important gap in the research and inform regulation of these products.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Exclusive cigarette smokers | – | –Exclusive cigarette smokers must smoke at least 10 cigarettes per day for the past three months and have exhaled carbon monoxide (eCO) levels of at least 6 ppm at the screening visit. |
| Dual (Electronic cigarette and cigarette smoking) users | – | –Dual e-cigarette and cigarette users must have smoked at least 5 cigarettes per day for the last 3 months and use e-cigarettes at least 15 days per month for the last 3 months. |
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- A sample of 40 current cigarette smokers (n=20) and dual e-cigarette and cigarette users (n=20) who are willing to use/try an alternative nicotine-delivery device will be recruited via advertisements/ recruitment materials (e.g., craigslist, ads on OSU, OU, and UCO campuses, OUHSC, email) and referrals. Participants will live in the Oklahoma City, OK metro area. Participants will be provided information about the study and provide initial consent for screening via an online screener.
Key inclusion criteria (14 listed)
- be at least 18 years old
- live within 30 miles of the research site
- interested in/willing to use an e-cigarette during study visits
- be willing and able to complete study procedures including specimen collection, survey completion, and remaining nicotine abstinent for 12 hours prior to each study visit
- speak and understand English
Key exclusion criteria (10 listed)
- currently suffering from lung disease including asthma, cystic fibrosis (CF), or chronic obstructive pulmonary disease (COPD), unless it is well-controlled,
- currently pregnant or breast-feeding or have plans to become pregnant or begin breast-feeding at any point during the study,
- intoxicated at study visits (breath alcohol testing and clean urine drug screen),
- any known allergies or sensitivity to the known major constituents contained in the aerosol of the study e-cigarette devices (e.g., flavorants, vegetable glycerin, propylene glycol),
- User of zero-nicotine e-cigarettes,
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Nicotine delivery measured by serum (blood) nicotine
Time frame: 1 month
Participants will complete one standardized puffing bout (10 puffs) with each of the three electronic cigarettes, usual brand cigarette and Very Low Nicotine Cigarettes (VLNCs). Serum nicotine will be measured throughout each standardized puffing bout. Greater levels of serum nicotine will be indicative of greater nicotine delivery.
Proportion of puffs earned and allocated to each product in three hypothetical tobacco regulatory scenarios
Time frame: 1 month
Participants will complete three computer tasks simulating hypothetical regulatory scenarios and will earn and allocate puffs to study products. A greater proportion of puffs allocated will indicate greater demand for the product in that hypothetical scenario
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Dec 2020.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Theodore Wagener, PhD principal investigator
University of Oklahoma
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Tobacco Use, run by University of Oklahoma at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 14 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 19 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Nicotine delivery measured by serum (blood) nicotine (time frame: 1 month). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Dec 2020.