CIGARETTE SMOKING

This study tested whether quitting cigarettes and e-cigarettes at the same time or one after the other is more effective. Nineteen adults who smoked and vaped received varenicline (a medication to reduce cravings) and counseling. Researchers measured abstinence and health markers…

This study tested whether a mindfulness-based text messaging program, called iQuit Mindfully, helps people stop smoking. Over 500 adults who smoked regularly took part. Some received the text program alone, others also got online mindfulness counseling, and all had access to nico…

This study tested whether a daily supplement made from a mushroom extract (PsP) could reduce markers of oxidative stress and inflammation in 200 adults who smoke or are exposed to smoke. Participants took either PsP or a placebo for 8 weeks, and researchers measured changes in bl…

This study tested whether mailing free samples of varenicline (Chantix) or nicotine patches and lozenges helps smokers quit. 652 daily smokers were randomly assigned to receive a one-time sample of varenicline, nicotine replacement products, or no medication. Participants were no…

This study tested whether inhaling lemongrass (as a vapor or from an inhaler) could reduce nicotine dependence and improve health markers in 200 adult smokers aged 18–30. Participants used lemongrass products or nothing (control) and provided blood samples and questionnaires. The…

This study tested whether higher doses of nicotine patches and lozenges help people quit both smoking and vaping. 46 adults who used both cigarettes and e-cigarettes daily took part. Researchers measured how many days they stayed away from both products and checked for side effec…

This study looked at how cigarette smokers make purchasing decisions in an experimental tobacco marketplace. Researchers compared real purchases (where participants actually received products) with hypothetical ones. The goal was to see if these methods give similar results for u…

This study involved 440 daily smokers and dual users (smokers who also vape) to understand how price changes affect their choices between cigarettes and other nicotine products like e-cigarettes, nicotine pouches, and heated tobacco. Participants completed a simulated shopping ta…

This study looked at how smoking affects a brain chemical called glutamate in men versus women. Researchers scanned the brains of 58 smokers after not smoking overnight and after their first cigarette of the day. They also measured hormone levels in women to see if hormones influ…

This completed study with 65 adult smokers and vapers tested how different rules and penalties affect whether people buy illegal tobacco products. Participants used a simulated store to see how promotion factors and mitigation strategies like fines changed their buying choices. T…

This completed study at Yale University looked at how 66 adult smokers (ages 21-44) perceive sweet, cooling, and unflavored e-cigarette liquids. Participants tried each flavor and rated its appeal, sensory effects, and how much they wanted it compared to money. The goal was to se…

This study looked at how information about nicotine changes what smokers believe and how they use tobacco. 74 adult smokers took part and answered questions about their views on nicotine and smoking. The goal was to understand, not to treat or cure.

This study gave free e-cigarettes to 17 adult smokers with asthma for 8 weeks to see if they would smoke fewer regular cigarettes and have better lung function. Researchers measured changes in smoking habits, dependence, and asthma symptoms. The goal was to gather early informati…

This completed study looked at how 285 daily smokers would change their tobacco purchases under four different tax plans. Participants used a simulated online marketplace to buy products as taxes increased. The goal was to see if certain taxes push smokers toward lower-risk alter…