ELECTRONIC CIGARETTE USE

This study tests whether a combination of varenicline (a pill) and nicotine patches can help people who both smoke cigarettes and use e-cigarettes quit smoking. About 500 participants will take the medications and be followed for 12 months to see if they stay smoke-free. The goal…

This study follows 600 adults who vape nicotine regularly to see how it affects their heart and lungs over time. Participants undergo blood tests, lung scans, and heart stress tests at multiple visits. The goal is to understand the long-term health risks of e-cigarette use, which…

This study looks at how menthol flavor in e-cigarettes affects young users' nicotine dependence, puffing habits, and exposure to harmful chemicals. Researchers will have 250 participants aged 21-35 use both menthol and tobacco-flavored e-cigarettes in lab sessions. The goal is to…

This study looks at how THC (the active part of cannabis) changes people's desire for e-cigarettes and their body's reactions. Researchers will give different doses of THC or a placebo to 100 adults who regularly use both e-cigarettes and cannabis. They will measure how many puff…

This study looks at whether inflammation caused by e-cigarette use harms blood vessel function in young adults aged 18-24. Researchers will compare chronic vapers to non-users, measuring blood vessel responses after giving an anti-inflammatory drug or placebo. The goal is to unde…

This study aims to see if placing picture-based health warning labels directly on e-cigarette devices changes how young adults (ages 21-35) use them. Researchers will measure things like satisfaction, harm perception, and nicotine levels in the blood. The goal is to understand if…