View clinical trials related to Tobacco Use Disorder.
Filter by:The aim of the present study is to compare serum nicotine levels of different e-Cigarette strength with usual cigarettes. Serum levels of carcinogenic and toxic substances will be also compared.
The proposed research will provide significant new gender-specific information of scientific and clinical relevance on the function of the mu-opioid system in nicotine dependence and therapeutic effectiveness of nicotine replacement therapy (NRT). The studies will help to explain the differences in the prevalence of smoking in men and women, sex-specific differences in nicotine craving and withdrawal as well as the poorer therapeutic response to NRT. This work may pave the way to the design of improved pharmacotherapies that can more effectively target the endogenous opioid system in the treatment of nicotine dependence.
This is a clinical trial to determine if the nicotine inhaler in combination with counseling will help pregnant women quit smoking, and whether it is safe when compared to placebo (an inactive inhaler).
The investigators propose to develop a theory-based smoking cessation intervention (called Persistence-targeted smoking cessation; PTSC). PTSC includes 8 weekly individual counseling sessions and use of nicotine lozenge for 12 weeks. The investigators will test the feasibility and preliminary efficacy of the intervention (i.e., cigarettes per day and prolonged abstinence).
The primary goal of this project is to carry out a randomized controlled trial (RCT) comparing quit rates of a Spanish/English stop smoking Web site to those of a no-intervention or "quit on your own" control. The investigators have not included a no-intervention condition in previous Web studies and although 20% of participants quit smoking at one year are 20%, obtaining evidence that the investigators interventions yield higher abstinence rates than a no-intervention control is the next logical step. Furthermore, although the investigators Web site was designed in English and Spanish, the investigators success in attracting the U.S. Hispanic/Latino (HL) population in either language has been limited, so this project only will only conduct intensive telephone follow-up of HL smokers and add new recruitment methods to do so.
This is a two part study. Study 1 will compare Approach Avoidance Training (AAT) responses in smokers and nonsmokers in order to confirm that adolescent smokers experience cognitive bias towards tobacco-related stimuli.
This is a two part study. In Study 2, smokers who want to quit smoking will participate in a 4 week smoking cessation program combining weekly cognitive behavioral therapy (CBT) with weekly regular-AAT or placebo-AAT training. We hypothesize that adolescent smokers will exhibit stronger approach tendencies towards smoking-related stimuli in the tobacco Approach Avoidance Training (AAT) task when compared with nonsmokers and that adolescent smokers who are trained to avoid smoking related stimuli using the AAT will avoid tobacco approach tendencies in the AAT test trials and the Implicit Association Task, when compared to adolescent smokers who are not exposed to AAT training. We also hypothesize that adolescent smokers who are trained to avoid tobacco in a training AAT in combination with CBT will have better abstinence rates compared to those who receive placebo AAT training with CBT.
This is a pilot project using functional magnetic resonance imaging (fMRI) to examine the influence of varenicline on reward processing, cognitive control, and regulation of craving in adolescent smokers. We hypothesize that adolescent smokers receiving varenicline, when compared with those receiving placebo, will have differential brain responses to anticipation of rewards, during exposure to the Stroop task, and in response to tobacco cues.
Focus of this study was to determine if bupropion was more effective for smoking cessation when used alone or combined with nicotine gum.
The purpose of the overall parent study is to determine the impact of gender and hormones (estradiol, progesterone, testosterone and cortisol) on responses to stress and smoking cues presented in daily, "real-world" cue presentations compared to a final cue session in a lab. In addition, in the portion of the study that incorporates clinical trials elements and is reported here, the study will examine the impact of a single dose of oxytocin (chemical produced in the body) versus placebo (inactive substance) on reactivity to a stress procedure (Trier Social Stress Task) in smokers. The overall parent study involves a cue presentation technology known as "CREMA" (Cue Reactivity Ecologic Momentary Assessment) which delivers four daily cue presentations to you on a handheld device during your everyday routine. Additionally, the study involves daily collection of saliva samples for hormonal testing. These daily procedures will provide information about the role of cues and hormones in daily life. The clinical trial portion of the study (reported here) consists of measures collected within the laboratory.