View clinical trials related to Nicotine Dependence.
Filter by:A placebo-controlled study to enroll male and female tobacco smokers who will participate in five experimental sessions. subjects will be given an IV infusion of either saline or 1 mg nicotine at rapid, moderate or slow infusion rates (nicotine at 0.24,0.096, 0.048 and 0.024, mcg per kg body weight per sec).
Prior and recent evidence suggests a role of medial prefrontal cortex (MPFC) in cigarette smoking. Episodic Future Thinking (EFT) has also been shown to be associated with increased delayed discounting and reduced cigarette self administration. In the present study, we will examine whether a single administration of theta-burst transcranial magnetic stimulation (tbTMS) can increase Episodic Future Thinking and delayed discounting while reducing craving for nicotine.
The purpose of this study is to measure the individual and combined influence of electronic cigarette (ECIG) heating element resistance and liquid nicotine concentration on ECIG acute effects. Thirty-two experienced ECIG users will complete four independent laboratory sessions that will differ by heater resistance (0.5 ohm or 1.5 ohm) and liquid nicotine concentration (3 or 8 mg/ml). Other factors such as voltage, liquid solvent ratio, and liquid flavor will be held constant. Plasma nicotine concentration, subjective effects, and puffing behavior will be recorded for each condition.
This research study is designed with the purpose of evaluating a new drug, combination Dextromethorphan-Bupropion (AXS-05), for its effects on smoking behavior.
Smoking cessation and relapse prevention represent and important opportunity to improve cancer survival rates, reduce the risk of cancer treatment complication, and improve the quality of life of patients with and survivors of cancer. Previous studies showed that repetitive TMS (rTMS) reduced cue craving to smoking and treat nicotine dependent smokers. Recently one study completed by our team demonstrated that 10 sessions of rTMS over the left dorsolateral prefrontal cortex (DLPFC) reduced cigarette consumption and cue craving, and also increased quitting rate on target quit date in nicotine dependent smokers. Thus, we propose conducting a controlled, double-blind trial comparing the effect of treatments of active rTMS and sham rTMS on cigarette abstinence days, cigarette consumption and smoking craving during a 7-days of quit attempt period in 20 nicotine-dependent patients with cancer. Specific aims are: Aim 1: Assess a feasibility of the rTMS for smoking cessation in cancer patients. Aim 2: Obtain preliminary estimates of whether one-week active rTMS of left DLPFC tends to be more efficacious than sham rTMS during a 7-days of quit attempt laboratory model period increasing abstinence days, and also decreasing cigarette consumption and cue-elicited craving in cancer patients with smoking.
Tobacco use is the most preventable cause of disease, disability, and death in the United States. Standard smoking cessation care (cognitive behavioral therapy and nicotine replacement therapy), is effective in approximately 20% of the cases, clearly indicating there is substantial room for improvement. Current work suggests that despite standard interventions, continued substance abuse may result from addictive behaviors governed partly through automatic processes that exert their influence outside conscious control. This is important from a treatment perspective, as we should develop treatments to target implicit processes. Among a number of promising targets for intervention, cognitive biases are important to address as they have been implicated as maintenance factors for addiction. Approach bias, defined as the automatically activated action tendency to approach smoking-related stimuli, is a relatively novel cognitive bias and has been related to failed smoking cessation. A recently developed task for approach bias assessment is the Approach Bias Retraining (ABR), a computerized joystick task increasingly used to measure automatic approach tendencies in addiction research. This clinical trial will evaluate a smoking cessation intervention that integrates standard care with approach bias retraining. Results will provide novel information regarding the potential benefits of engaging implicit cognitive biases as a means to augment traditional smoking cessation therapy. This study has the potential to help individuals attempting to quit smoking and, ultimately, provide unique information about the importance of targeting implicit processes to complement standard care.
This project will examine the impact of very low nicotine content (VLNC) cigarettes in a complex tobacco and nicotine product marketplace. We will compare the number of cigarettes smoked and cigarette-free days in an experimental marketplace that contains VLNC cigarettes versus normal nicotine content (NNC) cigarettes.
The objective of the current study is to evaluate the validity of the No Shock, Predictable Shock, Unpredictable Shock (NPU) stressor task for use as a surrogate endpoint to predict short-term clinical outcomes among smokers during a smoking cessation attempt.
To examine the acute reinforcing effects of menthol, a fruit flavor (green apple) or a fruit flavor plus menthol, alone or in combination with nicotine in smokers. Flavors will be administered by inhalation via electronic cigarettes (e-cigarettes) and nicotine will be administered intravenously. The reinforcing drug effects will be measured with the drug effects questionnaire (DEQ).
While the military has taken steps to reduce tobacco use over the past two decades, over a quarter of new military recruits report regular tobacco use prior to enlistment. This rate is higher than the national prevalence of 21.3% of US adults. Brief health prevention programs may be particularly effective for Airmen in Technical Training, given that all Airmen have been tobacco free for 11 ½ weeks and nearly 2/3rds are confident that they won't return to tobacco. We have developed and validated a Brief Tobacco Intervention (BTI) that is currently being implemented as part of Technical Training. We found that a motivational interviewing based, 40 minute BTI was efficacious in increasing perceived harm and decreasing intentions to use tobacco in a sample of 1055 Air Force trainees. Although we obtained significant positive changes in latent cognitive constructs for tobacco behavior that are highly predictive of future tobacco use in youth and young adults, the Little et al study did not obtain measures of actual tobacco resumption following the ban on tobacco in Air Force training. Given that 69.8% of all tobacco resumption/initiation occurs in Technical Training, a study that evaluates the short-term impact of our BTI on actual tobacco use is necessary prior to conducting the full scale R01 that would evaluate the long term efficacy of the BTI intervention. Thus, we propose the following Specific Aims: (1) To recruit approximately 2,000 Air Force trainees at the beginning of Technical Training at Joint Base San Antonio-Lackland Air Force in San Antonio, Texas during the 11 ½ week involuntary cessation ban; (2) To randomize participants to either (a) receive our cigarette smoking military tailored pamphlet (HL095758), The Airmen's Guide to Remaining Tobacco Free (Airmen's Guide; which has been disseminated and is now the standard of care in the Air Force) or (b) the Airmen's Guide + Brief Tobacco Intervention (BTI); (3) To determine the short-term (3 month, end of Technical Training) efficacy of the intervention on tobacco abstinence. Our primary outcome is tobacco abstinence at the end of Technical Training to determine an estimated effect size as well as establish the requisite preliminary work for a subsequent R01. Given that over 220,000 new recruits enter the military annually in one of the service branches, the public health implications of an effective brief tobacco intervention targeting the most commonly used tobacco for military personnel in Technical Training is considerable. If the BTI is proven efficacious it can be easily disseminated to other service branches that have similar tobacco bans during Technical Training.