Smoking Cessation Clinical Trials

The objective of the proposed research is to conduct a longitudinal experiment on the neurocognitive pathways and individual differences in high-level construal for affect regulation and smoking cessation. The population is adult smokers aged 25-55 who have tried and failed to quit and who are experiencing poverty. The primary endpoints are (a) the similarity in neural representation of high-level construal to one of two candidate pathways, (b) the presence of meaningful individual differences in the neural representation of high-level construal, and (c) as a secondary endpoint, the effect size of the high-level construal condition on smoking as measured by cigarettes per day. Each of these endpoints corresponds to a specific null hypothesis. The null hypothesis for the first endpoint is that high-level construal is not significantly different in its neural representation from down-regulation of craving, which would suggest that high-level construal does not operate through distinct mechanisms from traditional treatments. The null hypothesis for the second endpoint is that the between-subjects variability in the neural representation of construal level does not significantly relate to relevant individual differences measures (e.g., traits, task behavior), which would suggest that individual differences are not meaningfully related to outcomes. Finally, the null hypothesis for the secondary endpoint is that the magnitude of the effect of high-level construal on smoking as measured by reductions in average cigarettes per day is not significantly greater than in the other conditions, which would suggest that the efficacy of the high-level construal condition is not significantly greater than a standard text-messaging intervention. The primary endpoints will be assessed at baseline and change from pre-to-post training (8 weeks). Read Less

The investigators propose to use a parallel group, randomized controlled trial to test the efficacy of a 13-week personalized approach to reducing smoking intervention versus a second approach using a different health intervention on smoking cessation, healthy sleep metrics, and biomarkers of cardiovascular risk in a sample of 200 treatment-seeking smokers who are adults living with HIV (ALHIV). To enroll in the study, treatment-seeking ALHIV smokers will undergo phone and in-person study eligibility assessments, including a history, physical examination, screening laboratory tests, and an overnight in-home objective sleep assessment. Eligible subjects (N=200) will be randomized to the 13-week Approach 1 (N=100) or Approach 2 (N=100) condition. All subjects will receive a 12-week course of varenicline (beginning in week 2) and 8 individual 15-minute smoking cessation counseling sessions [weeks 1, 2, 3 (target quit date), 5, 7, 9, 11, 13]. At each in-person counseling session, 30-45 minutes of Approach 1 or Approach 2 counseling will be provided as well. While receiving varenicline, the study team will monitor for side effects and changes to blood pressure at each study visit for safety reasons. Study measures are collected at all time points including EOT (week 13), and 6-month follow-up (6MFU). Read Less

The purpose of the proposed project is to evaluate an automated mobile phone-based CM approach that will allow socioeconomically disadvantaged individuals to remotely benefit from financial incentives for smoking cessation. The investigators have previously combined technologies including 1) portable carbon monoxide monitors that connect with mobile phones to remotely verify smoking abstinence, 2) facial recognition software to confirm participant identity during breath sample submissions, and 3) remote delivery of incentives automatically triggered by biochemical confirmation of self-reported abstinence. This automated CM approach will be evaluated in a randomized controlled trial that includes 532 socioeconomically disadvantaged males and females seeking smoking cessation treatment. Participants will be randomly assigned to either telephone counseling and nicotine replacement therapy (standard care [SC]) or SC plus a mobile financial incentives intervention (CM) for biochemically-confirmed abstinence. Participants will be followed for 26 weeks after a scheduled quit attempt. Biochemically-verified 7-day point prevalence abstinence at 26 weeks post-quit will be the primary outcome variable. Cost-effectiveness will be evaluated to inform policy-related decisions. Potential mobile CM treatment mechanisms, including self-efficacy, motivation, and treatment engagement, will be explored to optimize future versions of the intervention. Read Less

This study is recruiting Veterans who currently smoke cigarettes and support persons who are nominated by the Veterans. The purpose of this study is to assist Veterans with smoking cessation by asking Veterans to choose a support person who will assist them with the quitting process, or who may assist them with the quitting process once the Veteran is ready to quit smoking sometime in the future. Study staff will assess how much or how little social support during the Veteran's quitting process is helpful to the Veteran. This information will help us come up with new ways to help Veterans quit smoking that are better tailored to their needs. Read Less

The focus of this proposal is on expanding access to voluntary smoke-free homes to formerly homeless residents residing in permanent supportive housing, and examining the impact of this intervention on reducing tobacco-caused disparities. In this study, the principal investigator will conduct a multi-site, community-based cluster-randomized wait-list controlled trial of the multi-faceted smoke-free home intervention among 400 permanent supportive housing residents residing in 20 permanent supportive housing sites across the San Francisco Bay Area with the goal of increasing voluntary adoption of smoke-free homes. Read Less

Pilot randomized controlled trial to compare tobacco cessation rates of two arms: a 6-week culturally tailored tobacco cessation intervention versus a 6-week personalized culturally-tailored tobacco cessation intervention among African American women. Read Less

Tobacco use remains the leading cause of death in the United States and contributes to more than 7 million hospitalizations annually. Being admitted to the hospital offers the perfect opportunity to support smoking cessation. Patients are motivated to quit because of their current illness and societal guidelines recommend clinicians should counsel patients and prescribe smoking cessation pharmacotherapy (SCP) to virtually all smokers. However, only 22% of patients are prescribed SCP while hospitalized, and only 1% are prescribed medications compatible with current guidelines. This failure is part of the reason 70-80% of hospitalized smokers eventually relapse. The relapse typically occurs within a few days of hospital discharge - well before outpatient follow-up can occur. The investigators aim to improve smoking cessation treatment and guideline adherence by utilizing the opportunity that hospitalization provides. The investigators have created a tobacco treatment team (T3) to overcome physicians' and patients' low use of current guideline smoking cessation medications. The team members are trained in tobacco treatment and will be led by a nurse practitioner (NPT3). The team will work together and 1) prescribe individually tailored and guideline-concordant SCP; 2) counsel and motivate patients to use SCP properly; and 3) manage a mobile phone-based text-messaging system to keep patients motivated and adherent to SCP. Our preliminary data suggest that such an approach is workable and acceptable to patients, physicians, and hospital administrators. The investigators will recruit 424 patients in the hospital who smoke with cardiopulmonary disease. These patients will be randomized to receive either usual care or personalized care with the NPT3 team. The investigators will compare rates of guideline-concordant SCP use at 1 week and exhaled carbon monoxide (eCO) verified smoking cessation at 6 months between patients randomized to the NPT3 team vs. usual care. The investigators will also measure the project's economic value from a hospital and payer perspective. Understanding the economic value will better inform hospital and insurance policies and sustainability. Finally, acceptability, generalizability, and sustainability measures will be assessed through qualitative interviews with patients, providers, and hospital leadership. Read Less

The purpose of this study is to test the feasibility and acceptability of Smokefree Sexual and Gender Minority (SGM), an SGM-tailored version of the SmokefreeTXT text messaging program Read Less

The purpose of this study is to assess the impact of suvorexant on established measures of smoking relapse risk (craving,withdrawal, stress reactivity, latency to self-administration) and to validate the somnolent effect of suvorexant on sleep metrics in a sample of individuals with tobacco use disorder Read Less

This three-group randomized double-blind placebo-controlled trial (N=180) will evaluate the impact of combination zonisamide and bupropion on the process of switching from combustible cigarettes (CCs) to an e-cigarette. There will be a data collection period of at least five days to obtain baseline information on the use of combustible cigarettes. All participants enrolled in the study will receive a JUUL e-cigarette at Visit 2 for ad libitum use. After the first week of e-cigarette use (at Visit 3), participants will be given bupropion (150 mg each morning for days 1-3, then 300 mg daily) with either zonisamide (100 mg daily) or placebo (group 1 and group 2 respectively), or placebo for both medications (group 3) in addition to continued use of the e-cigarette. At each visit, participants will receive enough study drugs (or placebos) and e-cigarettes to last until their next study visit. The combination of zonisamide and bupropion use will continue until Visit 6 (7 weeks of treatment), and e-cigarette use will continue until the end of treatment (Visit 7). Read Less

The study aims to evaluate the feasibility of using Dorsolateral Prefrontal Cortex (DLPFC) Transcranial Direct Current Stimulation (tDCS) as a tool to decreasing distress and cigarette smoking. 46 participants currently smoking cigarettes, and seeking to decrease cigarette use will be recruited. Read Less

The purpose of this study is to provide preliminary information on the effect of electronic nicotine delivery systems (ENDS) provisions and contingent incentives (CI) on smoking in individuals with overweight/obesity who smoke cigarettes (SWO). All participants will be provided information on the comparative risk of ENDS relative to cigarette smoking, and a randomized group of participants will be provided ENDS provisions for 6 weeks. All participants will complete breath samples for 28 days to measure their exhaled carbon monoxide and will either receive fixed incentives for sample completion or receive varying incentives contingent on their carbon monoxide levels. Researchers will compare groups to understand the effect of each condition on smoking-related behavior. Read Less