Grant Number:	1R01CA204891-01 Interpret this number
Primary Investigator:	Wagener, Theodore
Organization:	University Of Oklahoma Hlth Sciences Ctr
Project Title:	Examination of First and Second Generation E-Cigarettes
Fiscal Year:	2016

 DESCRIPTION (provided by applicant): The 2009 Family Smoking Prevention and Tobacco Control Act grants the FDA regulatory authority over tobacco-based products. However, the FDA only recently proposed deeming regulations on e-cigarettes. Since their market emergence, e-cigarettes have evolved from first generation products, which look like a conventional cigarette, have few design components and limited nicotine delivery, to second generation products, which do not look like conventional cigarettes, have multiple design components and can achieve cigarette-like levels of nicotine-delivery. Missing from the current literature is a prospective study assessing differences between these two major types of e-cigarettes on smoking behaviors and patterns, nicotine dependence, and on biomarkers of toxicant exposure and effect. Understanding the differential impact of first versus second generation e-cigarettes on smoking as well as measures of proximal health outcomes will help immediately inform the science base needed for the FDA to impose appropriate product specific regulations. The overall aim of the proposed study is to evaluate the effect of switching from conventional cigarettes to either a first or second generation e-cigarette on smoking behavior, product use patterns and continued use, as well as biomarkers of toxicant exposure and effects. To do so, we will randomly assign 453 adult smokers, naïve to e-cigarette use, to first generation e-cigarette (G1), second generation e-cigarette (G2), or usual brand cigarette control (UBC). All products will be provided for 12 weeks. Enrollment will be restricted only to smokers not planning to quit in the next 3 months. Prior to randomization, all participants will take part n a lead-in period to assess normal smoking behavior and to allow for stratification on important variables. Follow- ups will occur at 1, 4, 8, 12, 26, and 52 weeks. Our specific aims are to 1) assess the effect of provision of G1 vs. G2 on product switching, abuse liability, number of cigarettes smoked, and perceived nicotine dependence; 2) evaluate changes in biomarkers of harmful tobacco constituent exposure among participants assigned to G1, G2, and UBC; and 3) evaluate changes in biomarkers of toxicant effect among participants assigned to G1, G2, and UBC. This innovative study in its comprehensive examination of all e-cigarette devices as well as their impact on smoking behavior and health outcomes, will provide the scientific foundation the FDA and other agencies need to establish effective regulatory strategies for the manufacture, distribution, and marketing of e- cigarettes.




Absolute and relative e-cigarette harm perceptions among young adult lesbian and bisexual women and nonbinary people assigned female at birth.
Authors: Patterson J.G. , Keller-Hamilton B. , Wedel A. , Vázquez-Otero C. , Liu J. , Lee D. , Stevens E.M. , Wagener T.L. .
Source: Addictive Behaviors, 2023 Nov; 146, p. 107788.
EPub date: 2023-06-30 00:00:00.0.
PMID: 37429104
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Correlates of youth Poly-E-Cigarette device use.
Authors: Hoffmeyer N. , Hinton A. , Wagener T.L. , Tackett A.P. .
Source: Addictive Behaviors, 2022 06; 129, p. 107248.
EPub date: 2022-01-21 00:00:00.0.
PMID: 35091199
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Youth use of e-cigarettes: Does dependence vary by device type?
Authors: Tackett A.P. , Hébert E.T. , Smith C.E. , Wallace S.W. , Barrington-Trimis J.L. , Norris J.E. , Lechner W.V. , Stevens E.M. , Wagener T.L. .
Source: Addictive Behaviors, 2021 Aug; 119, p. 106918.
EPub date: 2021-03-23 00:00:00.0.
PMID: 33798918
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Associated Changes in E-cigarette Puff Duration and Cigarettes Smoked per Day.
Authors: Wagener T.L. , Avery J.A. , Leavens E.L.S. , Simmons W.K. .
Source: Nicotine & Tobacco Research : Official Journal Of The Society For Research On Nicotine And Tobacco, 2021-03-19 00:00:00.0; 23(4), p. 760-764.
PMID: 33049064
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Vape shop owners'/managers' attitudes about CBD, THC, and marijuana legal markets.
Authors: Berg C.J. , Getachew B. , Pulvers K. , Sussman S. , Wagener T.L. , Meyers C. , Park A. , Dorvil S. , Patterson A. , Weber A. , et al. .
Source: Preventive Medicine Reports, 2020 Dec; 20, p. 101208.
EPub date: 2020-09-12 00:00:00.0.
PMID: 32995147
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Vape shop and consumer activity during COVID-19 non-essential business closures in the USA.
Authors: Berg C.J. , Callanan R. , Johnson T.O. , Schliecher N.C. , Sussman S. , Wagener T.L. , Meaney M. , Henriksen L. .
Source: Tobacco Control, 2020-10-19 00:00:00.0; , .
EPub date: 2020-10-19 00:00:00.0.
PMID: 33077506
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Vape shop owners/managers' opinions about FDA regulation of e-cigarettes.
Authors: Berg C.J. , Barker D.C. , Sussman S. , Getachew B. , Pulvers K. , Wagener T.L. , Hayes R.B. , Henriksen L. .
Source: Nicotine & Tobacco Research : Official Journal Of The Society For Research On Nicotine And Tobacco, 2020-07-29 00:00:00.0; , .
EPub date: 2020-07-29 00:00:00.0.
PMID: 32722808
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E-cigarette regulation: a delicate balance for public health.
Authors: Tackett A.P. , Hébert E.T. , Stevens E.M. , Wagener T.L. .
Source: Addiction (abingdon, England), 2020-04-19 00:00:00.0; , .
EPub date: 2020-04-19 00:00:00.0.
PMID: 32307739
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Exploring the Point-of-Sale Among Vape Shops Across the US: Audits Integrating a Mystery Shopper Approach.
Authors: Berg C.J. , Barker D.C. , Meyers C. , Weber A. , Park A.J. , Patterson A. , Dorvil S. , Fairman R.T. , Huang J. , Sussman S. , et al. .
Source: Nicotine & Tobacco Research : Official Journal Of The Society For Research On Nicotine And Tobacco, 2020-02-28 00:00:00.0; , .
EPub date: 2020-02-28 00:00:00.0.
PMID: 32149340
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Electronic cigarette use and sleep health in young adults.
Authors: Brett E.I. , Miller M.B. , Leavens E.L.S. , Lopez S.V. , Wagener T.L. , Leffingwell T.R. .
Source: Journal Of Sleep Research, 2019-09-04 00:00:00.0; , p. e12902.
EPub date: 2019-09-04 00:00:00.0.
PMID: 31486154
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JUUL electronic cigarette use patterns, other tobacco product use, and reasons for use among ever users: Results from a convenience sample.
Authors: Leavens E.L.S. , Stevens E.M. , Brett E.I. , Hébert E.T. , Villanti A.C. , Pearson J.L. , Wagener T.L. .
Source: Addictive Behaviors, 2019 Aug; 95, p. 178-183.
EPub date: 2019-02-18 00:00:00.0.
PMID: 30933713
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JUUL in school: JUUL electronic cigarette use patterns, reasons for use, and social normative perceptions among college student ever users.
Authors: Leavens E.L.S. , Stevens E.M. , Brett E.I. , Leffingwell T.R. , Wagener T.L. .
Source: Addictive Behaviors, 2019-07-09 00:00:00.0; 99, p. 106047.
EPub date: 2019-07-09 00:00:00.0.
PMID: 31442788
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Perceptions of Smoking and Vaping on Weight Control Among Adult American Indians Who Smoke.
Authors: Rhoades D.A. , Comiford A.L. , Dvorak J.D. , Ding K. , Hopkins M. , Spicer P. , Wagener T.L. , Doescher M.P. .
Source: Journal Of Community Health, 2019-07-04 00:00:00.0; , .
EPub date: 2019-07-04 00:00:00.0.
PMID: 31273619
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The relationship between nicotine metabolism and nicotine and carcinogen exposure among American Indian commercial cigarette smokers and electronic nicotine delivery system users.
Authors: Carroll D.M. , Wagener T.L. , Stephens L.D. , Brame L.S. , Thompson D.M. , Beebe L.A. .
Source: Addictive Behaviors, 2019 May; 92, p. 58-63.
EPub date: 2018-10-28 00:00:00.0.
PMID: 30583092
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Polytobacco use and risk perceptions among young adults: The potential role of habituation to risk.
Authors: Leavens E.L.S. , Meier E. , Brett E.I. , Stevens E.M. , Tackett A.P. , Villanti A.C. , Wagener T.L. .
Source: Addictive Behaviors, 2019 03; 90, p. 278-284.
EPub date: 2018-11-08 00:00:00.0.
PMID: 30472536
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Electronic cigarette and combustible cigarette use following a campus-wide ban: Prevalence of use and harm perceptions.
Authors: Leavens E.L.S. , Lechner W.V. , Stevens E.M. , Miller M.B. , Meier E. , Brett E.I. , Moisiuc A. , Hale J.J. , Wagener T.L. .
Source: Journal Of American College Health : J Of Ach, 2019-01-25 00:00:00.0; , p. 1-4.
EPub date: 2019-01-25 00:00:00.0.
PMID: 30681933
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Will the Debate Over e-Cigarettes Start Cooling Down?
Authors: Wagener T.L. .
Source: Jama Network Open, 2018-12-07 00:00:00.0; 1(8), p. e185945.
EPub date: 2018-12-07 00:00:00.0.
PMID: 30646289
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Social and substance use correlates of adult hookah use, 2016.
Authors: Abudayyeh H.S. , Glasser A.M. , Johnson A.L. , Cohn A.M. , Wagener T.L. , Mays D. , Villanti A.C. .
Source: Addictive Behaviors, 2018 Apr; 79, p. 39-44.
EPub date: 2017-12-09 00:00:00.0.
PMID: 29245025
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Have combustible cigarettes met their match? The nicotine delivery profiles and harmful constituent exposures of second-generation and third-generation electronic cigarette users.
Authors: Wagener T.L. , Floyd E.L. , Stepanov I. , Driskill L.M. , Frank S.G. , Meier E. , Leavens E.L. , Tackett A.P. , Molina N. , Queimado L. .
Source: Tobacco Control, 2017 Mar; 26(e1), p. e23-e28.
EPub date: 2016-10-11 00:00:00.0.
PMID: 27729564
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A Proposed Collaboration Against Big Tobacco: Common Ground Between the Vaping and Public Health Community in the United States.
Authors: Wagener T.L. , Meier E. , Tackett A.P. , Matheny J.D. , Pechacek T.F. .
Source: Nicotine & Tobacco Research : Official Journal Of The Society For Research On Nicotine And Tobacco, 2016 May; 18(5), p. 730-6.
EPub date: 2015-10-26 00:00:00.0.
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The comparative efficacy of first- versus second-generation electronic cigarettes in reducing symptoms of nicotine withdrawal.
Authors: Lechner W.V. , Meier E. , Wiener J.L. , Grant D.M. , Gilmore J. , Judah M.R. , Mills A.C. , Wagener T.L. .
Source: Addiction (abingdon, England), 2015 May; 110(5), p. 862-7.
EPub date: 2015-03-05 00:00:00.0.
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