View clinical trials related to Nicotine Dependence.
Filter by:The primary aim of this project is to determine the threshold dose of nicotine, which the smokers will be able to differentiate from placebo (saline). Will use IV pulsed-nicotine infusion that closely matches nicotine delivery by inhaled tobacco use (i.e., tobacco cigarette or electronic cigarette), allowing precise and reproducible nicotine delivery. Four nicotine doses (0.1, 0.05, 0.025, and 0.0125 mg nicotine/pulse) which are within the range of nicotine doses that are delivered by cigarettes with very low to regular nicotine content. These doses will be delivered as a cluster of 4 pulsed-nicotine infusions of 2 sec duration with a 28 sec interval between each dose.
This study is designed to find out how smoking affects the way the brain responds to pleasure and how this impacts smokers' behavior. Participants will complete three sessions. The first session will be a screening and training visit to determine final eligibility. Eligible participants will work with a researcher to develop brief scripts about times when they smoke and do other activities. Next, participants will attend two magnetic resonance imaging (MRI) scans - one after abstaining from smoking for 24 hours and the other after smoking as usual. After the second MRI, participants will answer questions on their phone every day for two weeks.
The aim of this study is to test intervention components to help young adults quit vaping. A 2x2 factorial design will be used where all participants receive quitline-delivered behavioral phone counseling, and components to be tested are a digital intervention (with text and online cessation support) and nicotine replacement therapy (NRT). The research questions and hypotheses for this study are: 1. Which components and combinations of intervention yield the greatest success rates for exclusive vaping cessation among young adult exclusive e-cigarette users? H1: The complete condition (NRT + digital) will yield significantly higher rates of cessation compared to the control condition (quitline only). 2. Does 8 weeks of nicotine replacement therapy (NRT) improve initial cessation outcomes relative to no NRT. H2: Providing NRT will yield significantly higher quit rates compared to the No NRT condition. 3. Do tailored text-messages and online support during cessation improve initial cessation outcomes relative to no digital content? Are young adult vapers engaged with and satisfied with digital cessation tools? H3: Digital support will yield significantly higher quit rates compared to no digital support. H4: Higher engagement in digital content will be associated with higher cessation success rates.
The purpose of this study are to obtain learnings regarding the Digital Therapeutic (DTx) experience of Clickotine, including acceptability and preference of the overall program and specific DTx components, as well as to obtain learnings related to adult participants' use of the DTx for smoking cessation.
The proposed study investigates the feasibility and efficacy of FITs in dual-smoker couples [DSCs]. The core design is a three-group mixed repeated measures design, in which participants are randomized into one of three conditions (control [CTL], dyadic target [DT] FIT or single target [ST] FIT) and tracked across 3 months. The FIT involves monetary incentives for online psychoeducation completion and smoking abstinence at follow-up.
The research objective is to identify a simple, pragmatic, innovative way of enhancing Tobacco Use Treatment (TUT) rates within oncology. To investigate this possibility, the investigators propose methods that will allow them to: 1) evaluate the impact of standing orders to initiate a varenicline management protocol within outpatient cancer treatment workflow, 2) assess the potential for an EHR-based intervention to affect patient TUT behaviors, and 3) identify important facilitators and barriers that impact effectiveness of the intervention. The investigators will assess whether including a standing order for prescription and management of varenicline (TUT Service+VM) within the workflow for cancer patients identified as current smokers will significantly increase TUT engagement rates compared to current standard of care (TUT Service alone). The investigators hypothesize that observed treatment engagement rates will be higher among clinicians exposed to TUT Service+VM than observed in clinicians exposed to TUT Service alone.
The main purpose of this research study is to evaluate the effectiveness of "nudges" to clinicians, to patients, or to both in increasing Tobacco Use Treatment Service (TUTS) referral and engagement; and to explore clinician, patient, inner setting (e.g., clinic), and outer setting (e.g., payment structures) mechanisms related to TUTS referral and engagement. The investigators will employ rapid-cycle approaches to optimize the framing of nudges to clinicians and patients prior to initiating the trial and mixed methods to explore contextual factors and mechanisms. The investigators will conduct a four-arm pragmatic cluster randomize clinical trial to test the effectiveness of nudges to clinicians, nudges to patients, or nudges to both in increasing TUTS referral and engagement in cancer patients who smoke, vs. usual care (UC). The investigators hypothesize that each of the implementation strategy arms will significantly increase TUTS referral and engagement compared to UC and that the combination of nudges to clinicians and to patients will be the most effective.
This is a pilot randomized controlled trial (RCT) with the overarching aim of testing the influence of reducing electronic nicotine delivery system (ENDS) use or nicotine on addiction and combustible cigarette (CC) smoking among dual users. Specifically, the investigators will conduct a 4-week pilot RCT in which dual users who are not motivated to quit either product in the near future are randomized to A) abruptly switch to low nicotine ENDS pods, B) abruptly reduce number of usual nicotine ENDS pods, or C) use ENDS as usual (control). The investigators adapted a protocol used in a prior study to assign participants to switch to ENDS pods with less nicotine or reduce number of ENDS pods in this trial. Specifically, the investigators will provide all participants with ENDS pods during the study period and instruct them to only use ENDS provided by the study. Participants in reduced nicotine condition will switch from usual nicotine (5% JUUL) to low nicotine ENDS (3% nicotine JUUL) pods. Participants in the reduced use condition will continue to use usual nicotine ENDS (5% nicotine JUUL) pods but reduce use to 60% of their baseline number of pods per week. Participants in the control condition will use usual nicotine ENDS (5% nicotine JUUL) pods as usual.
The FDA has concluded that flavors (e.g. menthol) are associated with greater addiction potential in tobacco cigarettes (Gottlieb March 13, 2019). Whether the same is true for e-cigarettes and non-menthol flavors is unclear and our study should help answer this question. Our major hypothesis is that the pharmacological effect of nicotine to induce addiction will be greater with use of a preferred e-cigarette flavor than with use of a non-preferred flavor. The pharmacological effect will be measured by how much a larger nicotine dose increases addiction potential compared to a smaller dose.
Chronic Obstructive Pulmonary Disease (COPD) is caused primarily by smoking and smoking cessation is the first-line treatment for slowing disease progression. Despite this, nearly 50% of COPD patients continue to smoke following diagnosis. Smokers with COPD report high rates of co-occurring conditions - nicotine dependence, depression, and anxiety - which serve as barriers to quitting. The current study will pilot test a behavioral intervention designed to target the common psychological factors underlying these co-occurring conditions and foster smoking cessation among COPD patients.