E-Cigarette and Cigarette Nicotine Delivery and Abuse Liability in Cigarette Smokers and Dual Users
16. december 2020 opdateret af: University of Oklahoma
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.
Studieoversigt
Status
Trukket tilbage
Betingelser
Detaljeret beskrivelse
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.
Undersøgelsestype
Observationel
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Oklahoma
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Oklahoma City, Oklahoma, Forenede Stater, 73104
- University of Oklahoma Health Sciences Center Oklahoma Tobacco Research Center
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 50 år (Voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
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.
Beskrivelse
Inclusion Criteria:
- 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
- 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.
Exclusion Criteria:
- 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,
- 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.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Case-Control
- Tidsperspektiver: Tværsnit
Kohorter og interventioner
Gruppe / kohorte |
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Eksklusive cigaretrygere
Eksklusive cigaretrygere skal ryge mindst 10 cigaretter om dagen i de seneste tre måneder og have udåndede kulilte (eCO)-niveauer på mindst 6 ppm ved screeningsbesøget.
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Dobbelt (elektronisk cigaret og cigaretrygning) brugere
Dobbelt e-cigaret- og cigaretbrugere skal have røget mindst 5 cigaretter om dagen i de sidste 3 måneder og bruge e-cigaretter mindst 15 dage om måneden i de sidste 3 måneder.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Nicotine delivery measured by serum (blood) nicotine
Tidsramme: 1 month
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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.
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1 month
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Andel af sug tjent og tildelt hvert produkt i tre hypotetiske tobaksreguleringsscenarier
Tidsramme: 1 måned
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Deltagerne vil udføre tre computeropgaver, der simulerer hypotetiske reguleringsscenarier og vil tjene og tildele pust til at studere produkter.
En større andel af tildelte pust vil indikere større efterspørgsel efter produktet i det hypotetiske scenario
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1 måned
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Theodore Wagener, PhD, University of Oklahoma
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Forventet)
1. juni 2019
Primær færdiggørelse (Forventet)
1. december 2019
Studieafslutning (Forventet)
1. december 2019
Datoer for studieregistrering
Først indsendt
7. maj 2019
Først indsendt, der opfyldte QC-kriterier
7. maj 2019
Først opslået (Faktiske)
9. maj 2019
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
19. december 2020
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
16. december 2020
Sidst verificeret
1. december 2020
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- 8841
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .