Active clinical trials for "Tobacco Use Disorder"

People who smoke cigarettes have an increased risk of developing emphysema, heart disease, and certain types of cancer. This study will evaluate the effectiveness of providing free nicotine patches from an online smoking cessation program, with and without telephone counseling, at improving quit rates in cigarette smokers.

The primary purpose of this study is to determine whether, among smokers with elevated depressive symptoms, sequential antidepressant pharmacotherapy with fluoxetine (20 mg) begun 8 weeks prior to and extended throughout standard smoking cessation treatment with transdermal nicotine patch (ST-TNP) will result in superior short-and long-term smoking cessation outcomes compared to sequential pharmacotherapy with placebo medication combined with ST-TNP. The secondary aim of the study is to test the hypothesis that, among smokers with elevated depressive symptoms, sequential treatment with fluoxetine will result in lower levels of depressive symptoms and negative mood and higher levels of positive mood immediately prior to and throughout the course of smoking cessation treatment relative to the placebo condition.

The purpose of this study is to compare gain-framed counseling + gain-framed materials" to standard care Quitline counseling + standard print materials. The investigators hypothesize that gain-framed counseling + gain-framed materials group will produce higher abstinence rates than standard care counseling and standard care information. The data in this study will be used to determine effect size estimates for a large scale study.

Tobacco prevention and intervention strategies in the general population are ongoing and evolving. However, strategies to help cancer patients overcome tobacco dependence have been limited. Radiation oncology patients who continue to smoke despite their cancer diagnosis have a lower quality of life (QOL), increased frequency and severity of side effects during their cancer treatment, higher risks of developing a smoking-related primary cancer, and may have a poorer survival rate than their non-smoking counterparts. These are all compelling reasons to be more pro-active in helping cancer patients stop smoking. The overall objective of this project is to adapt a model of an effective tobacco use intervention that can be delivered by any trained radiation oncologist and their staff.

The purpose of this study is to conduct a randomized controlled school-based trial to evaluate the effectiveness of a four-session school nurse-delivered smoking cessation intervention in increasing abstinence rates among high school students who smoke.

The investigators hypothesize that varenicline will dose dependently attenuate the subjective effects of cigarettes after a period of abstinence. Also, treatment with varenicline will dose dependently weaken the severity of nicotine withdrawal symptoms. Thirdly, we hypothesize that treatment with varenicline will dose dependently decrease cigarette self-administration in the model proposed.

Cigarette smoking is of great public health importance and is the single most important preventable cause of morbidity, mortality and excess health care costs in the United States. After a steady decline for the last 50 years, the prevalence of tobacco use in the United States has reached a plateau of approximately 21%. Currently available treatments among adults are not efficacious for all tobacco users. New pharmacologic agents thus need to be continually developed and tested. The release of dopamine in the nucleus accumbens is one of the key components of the pleasurable and rewarding effects of nicotine. Drugs that increase monoamine neurotransmitter availability (particularly dopamine and norepinephrine) are likely to increase the reward function and thus ameliorate withdrawal symptoms. S-Adenosyl-L-Methionine (SAMe), the primary methyl donor for the central nervous system (CNS), donates methyl groups towards presynaptic synthesis of CNS monoamine neurotransmitters. By facilitating the synthesis of dopamine and norepinephrine in the brain, SAMe is likely to ameliorate the symptoms of nicotine withdrawal, thus improving tobacco abstinence rates in smokers who are trying to stop smoking. SAMe is well tolerated and is available over-the-counter. To date, no prospective clinical trial evaluating the efficacy of SAMe for the treatment of tobacco dependence has been published. We propose to evaluate the efficacy of SAMe for increasing smoking abstinence and decreasing nicotine withdrawal symptoms in a randomized, blinded, placebo-controlled, three-arm, parallel-group, dose-ranging phase II clinical trial. Participants (N=120) will be randomly assigned to one of the three groups, and will receive an 8-week course of SAMe 800-mg per day, 1600-mg per day, or a matching placebo. This study is anticipated to provide the data needed to develop a larger randomized controlled clinical trial submitted through the R01 funding mechanism, if the results appear promising.

This clinical trial tested whether a new treatment designed to help smokers prepare to quit smoking by practicing quitting several times helped more smokers quit and stay quit than standard treatment with nicotine patch and smoking cessation counseling. The practice quitting treatment tested involved quitting for progressively longer periods of time tailored to individual patterns of smoking. This clinical trial also tested whether non-nicotine cigarettes can help smokers become smoke free after slipping during a stop smoking attempt.

This is a pilot research study examining two types of behavioral counseling along with the nicotine patch for smoking cessation. The study is designed to find out whether one of these counseling interventions is more effective for smoking cessation among individuals with sleep problems. The study has three parts: 1) an intake session; 2) a 10-week treatment phase, and 3) a 1-month follow-up.

The purpose of this study is to look at brain function in order to understand how different treatments work to help people quit smoking. In this study, the investigators will look at the effects of nicotine patches, Chantix alone or Chantix paired with Zyban.