View clinical trials related to Electronic Cigarette Use.
Filter by:This prospective study assesses the pulmonary and cardiovascular effets of vaping in adult electronic cigarette users with biannual visits and a 5-year follow-up.
The goal of this clinical trial is to test the effects of social media use on e-cigarette use in young adults who use e-cigarettes. The main questions it aims to answer are: - Does reducing social media use change young adults' e-cigarette use? - Does reducing social media use change things such as young adults' mental health and what they see on social media? Participants will complete surveys and submit screenshots showing how much time they spend on social media. Researchers will compare young adults who reduce their social media use to young adults who use social media as usual, to see if their e-cigarette use differs.
Many people smoke cigarettes and use e-cigarettes, and have a hard time stopping. Nicotine replacement therapy medications, such as nicotine patches and lozenges, have been shown to help people quit e-cigarette use. The purpose of the present study is to see how well nicotine patches and lozenges help people quit both smoking and vaping, and to determine if higher doses of the medication work best.
The purpose of this study is to determine if abuse liability indices will be impacted by varying flavors and e-cigarette (ECIG) nicotine delivery capability (i.e., nicotine flux) among current combustible cigarette users. The investigators will compare abuse liability indices between three FDA-authorized ECIG products that vary in nicotine flux (but are all tobacco flavor) and own brand cigarettes. The investigators will also test the influence of ECIG flavor availability (tobacco vs. menthol) within three ECIG product classes.
This is a randomized, parallel-group open-label trial to evaluate respiratory symptoms in ENDS users switching from banned flavors to a non-banned flavor (tobacco) or 'tobacco free' nicotine pouches.
Tobacco use is increasing among youth in the U.S. However evidence for the long-term effectiveness of tobacco cessation programs for youth is limited. The current study seeks to adapt and evaluate a universal group-based Youth Brief Tobacco Intervention (Y-BTI) plus mobile phone automated text messaging (ATM) for 9th grade students. This study will use a sequential, multi-method research design beginning with qualitative roundtable discussions with 9th grade students to adapt the existing young adult Brief Tobacco Intervention (BTI) for youth. Roundtable discussions with students will identify salient intervention themes and strategies for targeting the Y-BTI intervention and developing the text messages. The second phase of the study evaluates the Y-BTI and ATM through a cluster randomized controlled trial that compares 4 treatment combinations: (1) Y-BTI + ATM, (2) Y-BTI alone, (3) ATM alone, or (4) no treatment control. It is hypothesized that the Y-BTI + ATM will produce greater abstinence at the 6-month follow-up compared to the Y-BTI alone, ATM alone or no treatment control. Further, it is hypothesized that the Y-BTI alone and ATM alone will produce greater abstinence at the 6-month follow-up compared to the no treatment control. Roughly 90% of daily smokers started before the age of 18, and 2,000 youth smoke a cigarette for the first time each day in the U.S. Additionally, e-cigarette use is on the rise among youth, and is linked to cigarette initiation among tobacco naïve youth. In order to curb the rise of tobacco use among youth, interventions that are easily implemented and easily disseminated need to be developed for youth addressing currently available products and contemporary patterns of use. If the interventions in the current study are proven efficacious, they can easily be disseminated to other schools to continue reducing youth tobacco use.
The use of electronic nicotine delivery systems (ENDS; e-cigarettes) has reached epidemic levels among young people in the United States (US). ENDS heat and vaporize a nicotine-containing liquid to produce an inhalable aerosol mist. While generally considered less harmful than combustible cigarettes, ENDS use exposes users to dependence-producing nicotine and respiratory and cardiovascular toxicants such as aldehydes. Flavor is a major factor in getting young people to use ENDS, thus limiting flavors to menthol and tobacco for prefilled cartridge ENDS "pod mods" was the first major action taken by the FDA to reduce the spread of ENDS among young people. Menthol flavor, however, can present a potential risk given its increasing popularity among young people in the US, and its puffing and nicotine-enhancing properties. Yet, the extent of menthol's ability to affect users' experience and puffing patterns, and how these affect dependence, exposure to toxicants, and clinical outcomes continue to be understudied. Such evidence will be critical to the FDA's ability to set further regulatory standards to reduce ENDS potential harm. The investigators will conduct a 2x2 (pre-post x menthol vs. tobacco flavor) crossover clinical lab study. The investigator will recruit current/past month ENDS users (n=250, 21-35 yrs), who will attend two sessions and use their ENDS once with menthol and once with tobacco flavors. The proposed studies will answer two key regulatory questions consistent with FDA's focus on the role of flavor in tobacco products' addiction and toxicity; 1) compared to tobacco flavor, does menthol carry additional risk by enhancing puffing, abuse liability, and toxicant exposure in ENDS users, and; 2) is this effect more pronounced among high dependence compared to other users. Other outcomes such as harm perception, satisfaction, clinical responses, intention to use or quit, and group comparisons such as according to race, and sex will allow the FDA a comprehensive assessment of the pros and cons of regulating mentholated ENDS for different segments of the society. Such evidence will help advance FDA regulatory policies with the potential to reduce ENDS harm.
This is an observational - data and specimen collection study. There have been increasing reports of vaping-induced lung injury, including severe lung injury and rare cases of death. The mechanism by which vaping contributes to lung injury in susceptible persons is unknown, as is impact on chronic lung disease. The investigators aim to identify individuals with chronic electronic nicotine delivery device (ENDD) exposure and matched controls within our ongoing cohort of HIV+ and HIV-uninfected individuals, collect PFT data, bank respiratory and stool samples and collect clinical data for studies of clinical risk, inflammation, biomarkers, and the microbiome in the identification and modification of risk of progression to lung injury or chronic pulmonary disease.
The present project will evaluate the initial efficacy of approach bias retraining among dual combustible cigarette (CC) and electronic cigarette (ECIG) users. The study employs a randomized controlled design to follow 90 experienced dual CC/ECIG users motivated to quit nicotine as they engage in a self-guided quit attempt following approach bias retraining.
This study investigates the degree to which shared behavioral processes underlie combustible cigarette (CC) and electronic nicotine delivery system (ENDS) use in young adult dual users of these products in both the laboratory and natural environment. The primary processes examined by this study are cue-reactivity, attentional bias, and affect. Examining these processes in the laboratory and the real world will facilitate: a) evaluating whether behavioral processes related to use and craving in controlled settings operate in similar fashion in naturalistic settings; and b) identifying the situational factors that predict or moderate these effects. This project will enroll 80 young adults who regularly use both CC and ENDS. At the start of the study, participants will provide informed consent; biological indicators and self-report measures will be collected; and participants will become enrolled in the study. Participants will then complete two laboratory sessions in a randomized order where they will be: a) exposed to either CC or ENDS cues (based on randomized order) and report their craving for these products; b) complete a computerized attentional bias assessment; and c) choose between smoking their usual brand CC or vaping their own ENDS device over ten sequential opportunities. After the conclusion of the second laboratory session, participants will install a smartphone application that will ask participants questions 5 times per day for 28 days at random intervals assessing: craving for CC and ENDS, physical and social context, affect, and attentional bias. Using the smartphone application, participants will also: a) complete a daily computerized assessment of attentional bias abbreviated from the laboratory sessions; b) report on CC and ENDS cues they experience in the natural environment; and c) report their use of CC and ENDS. A subset of participants will complete a focus group where they will be asked about real-time interventions for smoking and vaping. Laboratory hypotheses are: (1) cue exposure will elicit craving of both CC and ENDS in the laboratory and that product-specific cues will elicit stronger craving for the affiliated products; (2) visual probe effects indicating attentional bias in the laboratory will be observed for smoking and vaping images; and (3) cross-conditioning from the first hypothesis will be associated with heaviness of use of CC and ENDS and product choice. Natural environment hypotheses are: (1) presence of tobacco-related cues in the natural environment will elicit craving and use of these products; (2) reactivity to cues, attentional bias, and cross-product conditioning assessed in the laboratory will be associated with craving and use of tobacco products over and above the effects of cues in the natural environment; and (3) negative affect will strengthen these associations.