View clinical trials related to Nicotine Withdrawal.
Filter by:In the 20th century, tobacco caused the death of 100 million people worldwide and it is estimated that it will be responsible for 1 billion deaths in the 21st century. Currently 8 million people die each year from smoking, 7 million are associated with active smoking, thus being the main risk factor for loss of disability-adjusted life years for men and the ninth most important risk factor for women. In previous studies it has been reported that approximately 21% (14%-30%) of subjects who have required hospitalization are active smokers, being higher in men than in women (28% vs 14%). The initiation of treatment for smoking cessation in this group of subjects has shown an effectiveness rate of up to 65% to maintain abstinence 6 to 12 months after discharge. The effectiveness has been analyzed in scenarios with only brief advice, in some others with the use of medications such as varenicline, bupropion and nicotine replacement therapy, however, the interventions have not been standardized for adequate analysis, which could contribute to the different results.
Tobacco use disorder is a chronic, relapsing health condition that necessitates a chronic care approach. However, traditional smoking cessation treatment programs allocate nearly all their resources only to those smokers who are willing to set a quit date. This is problematic because few smokers are ready to set a quit date at any given time, and a smoker's stated intention to quit can change rapidly. One novel potential treatment strategy is to foster practice quitting (PQ), defined as attempting to not smoke for a few hours or days, without pressure or expectation to permanently quit. Although a growing body of evidence supports the role of practice quitting in fostering permanent quit attempts and cessation, there is a significant knowledge gap regarding which treatment strategies should be used to engage smokers in practice quitting. The proposed study will test the role of PQ counseling vs. Motivational Interviewing (MI) counseling, and NRT sampling (four-week supply of nicotine lozenges and patches) vs. none.
The purpose of the present study is to examine the pharmacokinetics and pharmacodynamics of "tobacco-free" oral nicotine pouches, at various doses and flavors, in healthy adult smokers. The study will utilize a within-subjects, double-blind design. Upon enrollment, participants will complete 7 dosing conditions: tobacco-flavored pouch (low or high nicotine dose), mint/menthol-flavored pouch (low or high nicotine dose), and fruit-flavored pouch (low or high nicotine dose); participants will also complete a condition where the participants will smoke participants' preferred brand of cigarettes. In each experimental session, participants will complete 2 product-use bouts. In bout 1, the participants will use a single product (pouch or cigarette) for a fixed period under controlled conditions. In bout 2, participants will be given 2 hours to use participants' assigned product ad libitum.
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.
This is a randomized, crossover study enrolling experienced dual cannabis-tobacco smokers (N=18) to describe the differences in THC and toxicant exposure, examining pharmacokinetic, subjective, and cardiovascular effects from smoking and vaping dry herb cannabis. This study will also examine the differences in toxicant exposure and cardiovascular disease risk between smoking cannabis and smoking tobacco cigarettes.
The INITIATE Study is a randomized controlled trial that is testing an intervention designed to increase long-term abstinence among tobacco smokers seen in emergency departments (ED). The intervention includes a behavioural incentive and tailored follow-up support on long-term smoking abstinence, health, healthcare utilization, and cost. Tobacco-related illnesses cost the healthcare system millions each year. Quitting smoking improves smoking-related outcomes, like the onset or management of heart disease, stroke, lung diseases, and several cancers. There are approximately 16 million visits to Canadian EDs each year; an estimated 3-4 million of these involve smokers. Effective quit smoking interventions exist, but are underutilized. Few hospital EDs in Canada offer tobacco-use interventions. In order for ED staff to offer quit smoking support, interventions need to be simple given the realities of the ED environment. Considering that stopping smoking improves health outcomes, that tobacco-use is an important cause of preventable ED use, and the volume of smokers, Canadian EDs are a missed opportunity in the initiation of quit smoking support. Our intervention has been designed to optimize uptake and smoking abstinence by including the most effective evidence-based behavioural and drug-related approaches, removing specific barriers and challenges that smokers face when trying to quit (e.g., affordability, low confidence and motivation), while packaging the intervention in a quick-to-initiate manner, making it ideal for fast-paced, complex ED environments.
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.
This is an observational, crossover study that will be examine use behaviors, chemical exposures, and biological effects of SREC compared to TC use in subjects confined to a research ward setting.
Male and female smokers were recruited to undergo 2 phases of smoking cessation. Each phase was 4 days long and involved 3 brain-imaging scans, blood draws and an intervention involving progesterone or a matched placebo.
We hypothesize that transcranial direct current stimulation will reduce tobacco withdrawal symptoms of tobacco dependent smokers abstinent from smoking for more than 10 hours.