70 Clinical Trials for Various Conditions
This study assess the ways in which e-cigarette product characteristics, such as flavors and nicotine salts, impact user experience to inform potential regulations.
This study assess the ways in which e-cigarette product characteristics, such as marketing strategies, impact user experience to inform potential regulations.
This project will assess the ways in which e-cigarette product diversity impacts the user experience to inform potential regulations by identifying product characteristics that may: (1) put young adults at risk for tobacco product use; and (2) facilitate adult smokers switching to e-cigarettes. There are three primary objectives to the study: (1) Determine which dimensions of e-cigarette product diversity differentially affect product appeal in the overall population of tobacco product users as well as affect product appeal across young adult e-cigarette users and middle-age/older adult smokers; (2) Determine which dimensions of e-cigarette product diversity differentially affect product appeal in the overall population of tobacco product users as well as affect abuse liability in young adult e-cigarette users and the ability to resist smoking in adult smokers; (3) Determine the affect of product characteristics on e-cigarette nicotine delivery profile. For this substudy, adult smokers (N=200) will attend two laboratory session in which they will self-administer e-cigarette products varied according to within-subject e-cigarette factors (e.g., flavor, nicotine formulation) and smoke their own cigarettes.
This project will assess the ways in which e-cigarette product diversity impacts the user experience to inform potential regulations by identifying product characteristics that may: (1) put young adults at risk for tobacco product use; and (2) facilitate adult smokers switching to e-cigarettes. There are three primary objectives to the study: (1) Determine which dimensions of e-cigarette product diversity differentially affect product appeal in the overall population of tobacco product users as well as affect product appeal across young adult e-cigarette users and middle-age/older adult smokers; (2) Determine which dimensions of e-cigarette product diversity differentially affect product appeal in the overall population of tobacco product users as well as affect abuse liability in young adult e-cigarette users and the ability to resist smoking in adult smokers; (3) Determine the affect of product characteristics on e-cigarette nicotine delivery profile. For this substudy, young adult vapers (N=100) and adult smokers (N=100) will attend one laboratory session in which they will self-administer e-cigarette products varied according to within-subject e-cigarette factors (e.g., flavor, nicotine formulation).
An Open-Label, Multi-Center Study to Evaluate Selected Constituents in the Exhaled Breath Samples From the Use of JUUL Nicotine Salt Pod System Product (5% and 3% Virginia Tobacco, Mint, Mango, Menthol) Users and Conventional Cigarettes (Non-Menthol and Menthol Flavors)
A Randomized, Open Label, Parallel Group Study in Adult Smokers to Evaluate Changes in Biomarkers of Cigarette Smoke Exposure After Switching Either Exclusively or Partly to using JUUL Electronic Nicotine Delivery Systems With Two Different Nicotine Concentrations
Electronic Nicotine Delivery Systems (ENDS) use remains prevalent among young adults, and many have high interest in quitting, yet research on effective intervention is lacking. A mobile health (mHealth) intervention that translates effective smoking cessation materials and pharmacotherapy may be a promising avenue for intervention. The initial phase of the proposed study uses a pilot study to evaluate a novel mHealth intervention for young adult ENDS and dual product (ENDS and combustible cigarette) users.
The purpose of the study is to explores various psycho-social, physiological, cognitive, behavioral, and environmental factors that may affect the association between pulmonary status and Susceptibility to Electronic Cigarette Use
This study aims to establish the feasibility and acceptability of a project designed to investigate the impact of electronic cigarette use on combustible cigarette smoking and smoking-related factors among smokers with psychiatric disorders, a high-risk population, who are not yet ready to quit smoking. All participants will be instructed to switch completely from combustible cigarettes to e-cigarettes for the next 8 weeks. They will be assessed at baseline, 2 weeks, 4 weeks, 8 weeks and 12 weeks.
Aim 1: To compare the overall toxicant exposure in pregnant women who use electronic cigarettes (e-cigs, vapor, e-liquid, e-juice, vape, vaping devices) compared to women who smoke conventional cigarettes. Aim 2. To compare toxicant exposure and birth outcomes among infants born to pregnant women who use e-cigs compared to women who smoke conventional cigarettes. Aim 3. To explore potential mechanisms by which e-cigs could influence birth weight.
This is an observational, crossover study that will be examine use behaviors, chemical exposures, and biological effects of SREC compared to TC use in subjects confined to a research ward setting.
Investigating the acute effects of a single use E-Cigarette upon vascular health.
This one-year pilot study of 30 non-treatment seeking young adult e-cigarette/combustible tobacco product dual users (15 males/15 females) will use smartphone-based ecological momentary assessment (EMA) to gather real-time data of e-cigarette and combustible tobacco product behaviors during a 1-week cigarette/e-cigarette dual use period .(1) Participants will respond to daily random prompts assessing in-the-moment use of e-cigarettes/cigarettes and the subjective factors (ratings of satisfaction and withdrawal) and contextual factors (location, activity, social cues) associated with each episode of use. Participants will also complete daily electronic diaries to document e-cigarette use episodes/day, and satisfaction with the e-cigarette experience during the study.
This randomized pilot clinical trial studies the effects of electronic cigarettes on the lungs. Studying the effects of electronic cigarettes on the lungs may provide the Food and Drug Administration (FDA) and other government regulators with important information, which may help in developing future regulations to make electronic cigarettes safer.
Although electronic cigarettes (e-cigs) are now widely used, very little information exists regarding the effect of electronic cigarette use (vaping) on the respiratory system. The aim of this study is to evaluate the acute effect of one e-cig vaping session (30 puffs 30 seconds apart) on cough reflex sensitivity in healthy adult nonsmokers.
Electronic nicotine delivery systems (ENDS) are used by millions of Americans, however their long-term health effects are unknown. This research proposal will quantify the effects of long-term ENDS use on validated and novel biomarkers of cardiovascular and pulmonary disease and how they are influenced by use heaviness, age, body weight, and co-use of other products. This study will produce the most informative evidence to date on how long-term ENDS use affects cardiovascular and pulmonary health.
The use of electronic nicotine delivery systems, or e-cigarettes - colloquially referred to as "vaping" - in the United States has increased exponentially since their introduction to the US market in 2007. Prevalence of ever and current e-cigarette use is highest among teenagers and young adults with 16-28% of this population having reported vaping. While the majority of e-cigarette users are current tobacco smokers, 32.5% of current e-cigarette users are never- or former-smokers, representing a growing population of young adults who exclusively vape. While e-cigarettes have been marketed as a safer alternative to tobacco cigarettes, clinical studies examining these claims are limited. Cardiovascular disease (CVD) is the primary cause of premature death among tobacco cigarette smokers and reductions in vascular endothelial function, a significant predictor of future CVD, are detectible in otherwise healthy young adults who smoke. Despite the explosion in e-cigarette use among young adults, the health effects - especially the effects on mechanisms of vascular function - of these devices remain relatively unexplored. The purpose of this study is to directly asses the mechanistic role of inflammation in this dysfunction.
This study investigates the feasibility, acceptability, and short-term effects of providing 4 weeks of complimentary electronic cigarettes (ECs) to 30 individuals who did not quit after smoking cessation treatment provided in the context of lung cancer screening and do not plan to quit smoking. This open-label single-arm pilot clinical trial will test the impact of EC provision on: 1) study feasibility, 2) EC acceptability, 3) tobacco use behavior (e.g., cigarettes per day, EC use), and 4) biomarkers (e.g., carbon monoxide, cotinine, and anabasine). Participants will be asked to switch from combustible cigarettes to the NJOY ACE 5% nicotine electronic cigarette (EC) for 4 weeks. They will be followed an additional 4 weeks after EC provision ends (to 8 weeks). The first study hypothesis is that more than 40% of eligible smokers who are offered participation in the trial will enroll, and that 75% of enrollees will complete the trial. The second study hypothesis is that participants will report fewer cigarettes smoked per day at the end of 4 weeks of EC provision, relative to their baseline values.
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.
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.
The goal of this study is to conduct a pilot randomized waitlist-controlled trial to assess the feasibility, acceptability, and preliminary effects of substituting the NIDA standardized research e-cigarette (SREC) for combusted cigarettes in MOUD-TUD who are not ready to quit smoking. A waitlist controlled RCT using a mixed-methods sequential explanatory design will investigate the impact of SREC provision on: 1) tobacco use behavior (e.g., cigarettes per day \[primary outcome\], SREC use), 2) biomarkers (e.g., carbon monoxide, anabasine), 3) cigarette dependence and withdrawal, and 4) short-term health effects and tolerability (e.g., respiratory symptoms, substance use). In the proposed RCT, N=40 adults stable on MOUD with buprenorphine who report daily smoking recruited from MGH primary care practices will be randomly assigned to receive the SREC for 8 weeks, either immediately (iSREC), or after an 8-week delay (waitlist control \[WLC\]). They will be followed an additional 4 weeks after SREC provision ends (to 12 weeks in iSREC and 20 weeks in WLC).
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.
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.
The rapid increase of electronic nicotine delivery systems (ENDS) use by young people in the US and their potential to harm health, cause addiction, and serve as a risk for cigarette smoking or dual-use is alarming. The epidemic of ENDS use among young people in the US has been associated with the rise in popularity of ENDS products that are very efficient in delivering high doses of nicotine to users. Therefore, the investigators propose to study the effects of nicotine reduction (NR) on young ENDS users as a potential regulatory strategy to reduce the addictiveness and use of ENDS. The proposed studies are directly responsive to research priories identified by the FDA and specified in this RFA under Addiction; studying the "Impact of changes in tobacco product characteristics (e.g. nicotine formulation) on dependence". This project aims to provide an overview of this project's rationale significance divided into 1) scientific rationale and regulatory implications; 2) the need to respond to the rising trend of ENDS use among young people in the US; 3) the importance of reducing the addictiveness of ENDS; 4) the strength of our clinical and analytical lab approach for regulatory purposes; and 5) the strengths and weaknesses in the rigor of prior research about NR for ENDS.
This study is being conducted to evaluate the impact of within-flavor category (tobacco and menthol) differences in e-liquid flavors on product use behaviors, nicotine uptake, and subjective effects by current ENDS consumers when used in a closed-system electronic nicotine delivery system (ENDS).
In this project, after systematically developing electronic nicotine delivery systems (ENDS) pictorial health warning labels (HWLs), a proven clinical lab model will be used to examine and test their effect when these are placed on the ENDS device on a variety of subjective (e.g. satisfaction, harm perception, nicotine dependence, intention to quit) and objective outcomes (e.g. plasma nicotine, puff topography) in young adults.
The study will assess product use behaviors, biomarkers of exposure, subjective effects, and safety in smokers who switch to a RELX ENDS over 8-weeks.
This study is being conducted to evaluate nicotine uptake and exposure, the abuse liability, and puffing topography associated with the use of an electronic nicotine delivery system ENDS with tobacco- and menthol-flavored e-liquids in current smokers.
This study is being conducted to evaluate nicotine uptake, the potential abuse liability, and puffing topography associated with the use of an electronic nicotine delivery system (ENDS) with tobacco- and menthol-flavored e-liquids in current ENDS consumers.
E-cigarettes are marketed as an alternative to smoking for those who want to decrease the health risks of tobacco. Tobacco cigarettes increase heart rate (HR) and arterial pressure, while reducing muscle sympathetic nerve activity (MSNA) through sympathetic baroreflex inhibition. The acute effects of e-cigarettes on arterial pressure and MSNA have not been reported: our purpose was to clarify this issue. Using a randomized crossover design, participants inhaled on a JUUL containing nicotine (59 mg/ml) and a similar placebo e-cigarette (0 mg/ml).