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Showing 1-20 of 24 trials
NCT06704295
This randomized controlled trial aims to examine the effects of high-impact e-cigarette advertisement features among young adults of various tobacco-use statuses. Previous research on examining the effects of e-cigarette advertisement features found that flavor-related features (e.g., flavor-associated product color, name and image, flavor sensation descriptor, and flavor choice claim) may have the largest impact on shaping young adults' perceptions and use intentions of e-cigarettes. No research so far has solely focused on examining the effects of those high-impact flavor-related advertisement features. The present study assessed the effects of high-impact flavor-related advertisement features, including flavor descriptor name, e-cigarette product color (which indicates flavors), flavor-related image, flavor sensation descriptor, and flavor choice claim on perceptions and behavioral intentions among a large online sample of young adults aged 18-30 who either smoke cigarettes or do not use tobacco products. The study is a six-group RCT with parallel assignments that will be delivered through an online self-administered questionnaire consisting of one session. Participants will be randomly assigned to one of six trial arms: 1) dark gray product with tobacco flavor name, 2) dark gray product with strawberry flavor name, 3) colorful (strawberry color) product with strawberry flavor name, 4) colorful (strawberry color) product with strawberry flavor name and strawberry image, 5) colorful (strawberry color) product with strawberry flavor name, strawberry image, strawberry flavor sensation descriptor, and 6) colorful (strawberry color) product with strawberry flavor name, strawberry image, strawberry flavor sensation descriptor, and flavor choice claim. Participants will be exposed to one advertisement corresponding to the assigned condition, and answer survey questions immediately after message exposure.
NCT06335329
Vaping has emerged as a prominent public health crisis in recent years. In 2023, the National Youth Tobacco Survey found that more than 2.1 million adolescents endorse vaping, with 25% of those endorsing daily use. Many adolescents also perceive vapes as safer than cigarettes, and more acceptable to use both indoors and outdoors compared to cigarettes. Vapes are available in numerous device and delivery systems, with the psychoactive agent commonly including nicotine or cannabis, although these can be of a wide variety of concentrations and formulations. They may be ultra-compact and allow for ease of concealment. In addition, they are produced in a variety of appealing flavorings such as candy, desserts, and fruits. Other constituents include the liquids and aerosolized components of the vaping cartridges, including formaldehyde, acetone, glycerol, propylene glycol, acetaldehyde, and heavy metals. Many of the flavoring concentrates, as well as the vaporized solvents, have not been evaluated for long term safety. One of these additives, vitamin E acetate, present in primarily illicit vaping devices, rose to national attention in 2019 for a suspected link to the dramatic increase in vaping/e-cigarette associated lung injury (EVALI) cases, with over 60 confirmed deaths since that time. To our knowledge, there are no studies evaluating the lung ultrasound findings of asymptomatic vapers. However, there is data to suggest that vaping can lead to pulmonary toxicity in in-vitro and animal models, including increased inflammatory cytokines, hyperreactivity, and oxidative stress. In addition, studies found the risk of bronchitic symptoms is twice as likely in current adolescent vapers, compared to those who have never vaped before. Given the potential pulmonary toxicity of vaping, as well as the increased percentage of adolescent vaping activity in recent years, investigators aim to evaluate baseline lung ultrasound findings in adolescents who vape. Concurrently, investigators will assess if observing their lung ultrasound findings can alter their attitudes and behaviors towards vaping. Prior adult studies have found that showing patients' their atherosclerosis plaque increased the motivation to quit and cessation rates. Additionally, data in pregnant patients found real-time ultrasound feedback of smoking effects on the fetus lead to near abstinence in light smokers. Given the frequent use of point-of-care ultrasound in the emergency department, investigators hope to assess an innovative intervention for cessation.
NCT07214168
The study aims to recruit 100 current cigarette smokers (50 young adults ages 21-34; 50 older adults ages 35-65) who have tried vaping or are currently vaping (dual users). The study will examine the trajectories in tobacco use (cigarettes and/or ENDS), including the nuanced differences in ENDS use (i.e., detailed device characteristics, user preferences, patterns of use), according to smoker age group.
NCT07392125
This will be a multi-center, double-blind, randomized, placebo-controlled, Phase 3 study conducted in male or female adults who are daily nicotine e-cigarette users only. A total of approximately 800 subjects will be randomly assigned (1:1) to one of two Arms: * Arm B, 12 weeks cytisinicline + behavior support: N=400 or * Arm A, 12 weeks of placebo+ behavior support: N=400) The primary objective is to assess whether subjects randomized to Arm B (3 mg cytisinicline TID for 12 weeks plus behavioral support) have a higher probability of nicotine vaping cessation from Week 9 to Week 12 as compared to subjects randomized to Arm A (placebo TID for 12 weeks plus behavioral support).
NCT05669716
Background: The use of electronic cigarettes (vaping) has increased among adolescents over the past decade. Vaping raises many health concerns. People who vape inhale toxic chemicals. Vaping is also linked with mental health issues, such as depression and suicide risk. In one survey, 85% of young adults reported that they used both vaping and tobacco products; the primary reason they cited for using these products was stress. Objective: This natural history study will survey adolescents and their parents about their attitudes toward vaping. Eligibility: People aged 13 to 18, including those who vape; those who once vaped; and those who have never vaped. Parents of people aged 13 to 18 who are known or suspected of vaping are also needed. Design: Participants will take a survey. They will use their own smartphone, computer, or tablet to answer questions. The survey will take about 20 minutes. Their answers will be anonymous. Teenage participants will answer questions on different topics: Vaping habits, such as when and how they vape. Drug use, including nicotine, cannabis, and alcohol. Mood issues, such as depression, anxiety, and stress. Social influences on vaping, including perceived attitudes of parents and peers. Other leisure habits, including online gaming and use of social media. Parents will answer similar questions. A phone number and links will be given to participants who need help for suicidal thoughts. Other links will be given to those who want help with parenting resources or aids to quit vaping. Participants may be invited to take part in an 8-week course on mindfulness-based stress reduction. Participants who finish the survey will receive 10 dollars. ...
NCT06435221
Safety assessment of long-term 3 mg cytisinicline three times daily (TID) exposure for 52 weeks is the main purpose of this study, conducted in the United States.
NCT05706701
The investigators will examine the relationship between nicotine flux, nicotine form, and the rate and dose of nicotine delivery. Participants will puff on electronic nicotine delivery system (ENDS) devices under conditions that differ by flux and form, while arterial blood is sampled in high time resolution. The outcome will indicate the degree to which nicotine flux and form determine the speed and dose of ENDS nicotine delivery, and thus, abuse liability.
NCT06077292
The goal of this interventional study is to determine the impact of high potency THC product use on cognitive function of young adults aged 21-25. The main question it aims to answer is: will cannabis users who switch to less potent THC products demonstrate improved cognitive function compared to baseline? Other questions this study aims to answer include: * Can researchers accurately assess THC consumption among frequent cannabis users? * Can researchers effectively incentivize cannabis users to use less potent THC products? * Do genetic variations in THC metabolism impact urinary THC excretion? * Do genetic variations in THC metabolism impact cognitive performance in cannabis users? * Are quantitative urinary THC values predictive of cognitive impairment? * How can researchers use research findings to inform harm reduction practices for people who use cannabis? Participants will submit blood and urine samples and be incentivized to use less potent THC products.
NCT06765291
This study will test the hypothesis that the QuitVaping (QV) intervention and additional texting support will improve nicotine abstinence rates in adolescents as compared to Enhanced Usual Care (EUC: education about nicotine, vaping and addiction, advice to quit vaping, referral to TIQ texting support). Approximately 400 adolescents will be randomly assigned to one of two arms (1) QuitVaping intervention plus texting support to quit vaping and (2) EUC only.
NCT04053868
This is an observational, crossover design that will examine the pharmacokinetics and pharmacodynamics of impact of smoking tobacco cigarettes or vaping the JUUL electronic cigarette.
NCT06269003
The goal of this clinical trial is to use psychophysiological methods to test the effects of a message source (expert and peer) and message presentation types (one-sided and two-sided) to identify the optimal message type for young adults who vape and do not vape.
NCT06825338
Vapes (also called e-cigarettes) have increased in popularity among youth in Canada and the United States. Youth who try vaping are at risk of becoming addicted and continuing to vape. To help combat the rise in vaping, there is an urgent need to identify effective ways to prevent youth from experimenting with vaping. Because of the novelty of vapes, there are few school-based programs targeting vaping. This study will investigate whether a vaping prevention curriculum called 'CATCH My Breath' (CMB) prevents high school students from starting to vape. The investigators will recruit 28 schools in Ontario, Canada into the intervention group, and students at these schools will be presented with the CMB curriculum by Public Health Unit staff. CMB is an evidence-based program that includes two 60-minute lessons that provide students with information about social norms related to vaping, health risks of vaping, media literacy, and in-class activities to practice refusal skills. Students will complete an online survey before being exposed to the curriculum, 3-months later, and 12-months later. The vaping behaviours of these students will be compared to students in a separate study of youth health (i.e., the COMPASS study) who are not given the curriculum. Evidence from this study will identify whether students exposed to CMB are less likely to start and continue vaping. If effective, CMB can be easily delivered in high schools across Canada in order to reduce the number of students who vape.
NCT05454267
The purpose of this study is to determine how vaping affects blood vessels, in particular if early damage occurs in the lung vessels.
NCT06832098
This research focuses on maximizing the chances of successfully quitting vaping. A large, pragmatic community-based clinical trial is planned in New Zealand to build on existing evidence from previous vaping and smoking cessation research undertaken by the study team. The effectiveness of combination nicotine replacement therapy (NRT) compared to nicotine tapering on vaping abstinence has not yet been investigated, but both provide an opportunity to increase success with vaping cessation, especially when combined with written behavioural support to further boost quit rates. The planned trial will test whether using combination NRT will help more New Zealanders to quit vaping long-term, compared with a vape nicotine tapering plan. Participants in both groups will also receive written vaping cessation behavioural support.
NCT05037656
The people of the U.S. Affiliated Pacific Islands (USAPI) face higher cancer incidence, especially lung/bronchia and head-and-neck cancer, and poorer cancer outcomes, compared with the U.S. nationally. This may partly be driven by the high rates of cigarette smoking and betel (areca) nut use in the USAPI. Previous data suggest that that adolescents on Guam, as young as middle school students report markedly higher e-cigarette and tobacco product use prevalence in the USAPI compared with the USAPI nationally. Guam youths are also at risk for the use of betel nuts. Yet, currently there are no tobacco product/areca nut use prevention programs that have been developed for and tested specifically USAPI adolescents. The proposed study will develop a school-based substance use prevention curriculum for e-cigarette, tobacco product, and areca nut use prevention among Guam youths. The curriculum will use lessons incorporating innovative videos and culturally grounded activities. The study's specific aims are: 1. To develop a school-based curriculum for e-cigarette, tobacco product (i.e., cigarette, smokeless tobacco), and betel nut use prevention among middle school students in Guam. 2. Test the efficacy of the school-based curriculum in a randomized controlled trial.
NCT04879225
Menthol cigarettes comprise almost one-third of the United States (US) market share and are disproportionately smoked by racial minorities. Tobacco control policies targeting menthol flavoring in tobacco could have significant public health outcomes, especially among black smokers. One key challenge of tobacco regulation is weighing the risks and benefits of potential policies across different populations (i.e., users and non-users). Tension arises between policies intended to prevent adolescent and young adult (AYA) tobacco initiation and those intended to reduce harm among current tobacco users. The availability of menthol e-liquids may be important for encouraging menthol cigarette smokers to switch to e- cigarettes, but mint e-liquids, which are appealing to AYA, may be unnecessary to facilitate switching. Including mint e-liquids in flavor bans but allowing menthol e-liquids to remain on the market as potential substitution products for menthol smokers may be an optimal policy approach. The study team is proposing a lab study and field assessment to determine how including menthol and mint e-liquids in e-liquid flavor bans or sales restrictions affects tobacco product purchasing and use among menthol cigarette smokers. At lab sessions, participants will complete the Experimental Tobacco Marketplace (ETM) task, a behavioral economics task in which they receive account balances to an online store and can buy menthol cigarettes at escalating costs or buy e-liquids, non-menthol cigarettes, or nicotine replacement gum at fixed costs. They will complete the task under four marketplace conditions: (1) only tobacco e-liquids available, (2) menthol and tobacco e-liquids available, (3) menthol, mint, and tobacco e-liquids available, and (4) tobacco, menthol, mint, fruit, dessert. During a field assessment, product choice is validated by assessing use of products purchased during the ETM task. This proposal will inform policy-makers about the impact banning menthol and mint e-liquids will have on facilitating menthol cigarette smokers switching to e-cigarettes.
NCT06003439
Many youth are addicted to nicotine due to increased nicotine vaping (e.g., e-cigarettes). Unfortunately, there are no effective interventions to help teens quit vaping. In addition, existing vaping prevention programs have limited effectiveness because teens have reported that existing available interventions are out of touch with teen's culture and are not appealing to the intended audience. Therefore, to be effective, a vaping intervention must be acceptable, appealing, and engaging to teens, and most importantly, it should be designed to be channeled into an existing infrastructure such as the school setting. The investigators' research group has designed a vaping prevention and cessation intervention that is implemented as a VR game for high school teens. The overall objective of this research is to assess the acceptability, feasibility, and preliminary efficacy of the VR experience among high school students in two high schools in Boston.
NCT06433466
Young adults (N = 1,500) will participate in the online survey-based experiment. They will be randomly shown 10 videos, featuring influencers promoting e-cigarettes alongside healthy lifestyle activities (experimental group), or a healthy lifestyle activity alone (control). After watching each video, participants will rate perceptions of influencer credibility (i.e., honesty, trustworthiness, knowledge, attractiveness, intelligence, and popularity) on the scale of 0 (e.g., dishonest) to 100 (honest). Among all participants, harm perceptions of e-cigarettes will be assessed. Susceptibility to use e-cigarettes will be assessed among never users. These outcomes will then be compared among participants who perceived influencers as credible and those who perceived influencers as non-credible.
NCT05383508
This is a single-center, randomized, controlled, open-label, cross-over study with healthy adult smokers. The study will investigate the nicotine pharmacokinetic (PK) profiles of two e-liquid variants used with the P4M3 Gen 2.0 e-cigarette, compared to smoking combustible cigarettes. In addition, pharmacodynamic (PD) effects (subjective effects and related behavioral assessments), will be evaluated to provide further insights on product evaluation, craving, liking, puffing topography. The study will be conducted with three periods and six sequences in a cross-over design. This study is exploratory and there is no pre-specified hypothesis to be tested.
NCT05958979
This study assess the ways in which e-cigarette product characteristics, such as marketing strategies, impact user experience to inform potential regulations.