TOBACCO USE

This study tests whether a 6-month program delivered through the Telegram messaging app can help people stop smoking after a heart attack. 142 adult smokers who use Telegram will either get the chatbot support or standard advice. The goal is to see if more people quit with the ch…

This study in Nairobi, Kenya, will test whether a drug called cytisine, combined with counseling, can help 300 people with HIV quit smoking and reduce heavy drinking. Participants will receive either cytisine or a placebo, plus either intensive counseling or standard advice. The …

This study tests a mindfulness program designed to help sexual assault survivors reduce alcohol misuse and tobacco use. Researchers will enroll 120 college students aged 18-24 who have experienced sexual violence and drank alcohol recently. Participants will take online surveys a…

This study is for pregnant people who use tobacco and cannabis and want to quit. Researchers will test a program that helps with depressive symptoms to make quitting easier. The study involves 25 participants and will measure how well the program works and if people stick with it…

This study looks at how changing the temperature and liquid in e-cigarettes affects the amount of harmful chemicals (oxidants) users breathe in. Researchers will measure markers of cell damage in breath, cheek cells, and blood from 50 adult e-cigarette users. The goal is to under…

This study will check how addictive two new nicotine pouches are by measuring their effects on the body and how much nicotine gets into the blood. About 40 healthy adults who smoke and also use smokeless tobacco will try the pouches in a clinic. The goal is to understand the abus…

This study will enroll 70 adult smokers to compare how appealing and addictive different e-cigarettes are versus their usual cigarettes and nicotine gum. Participants will try each product in a random order during an 8-day stay at a clinic. Researchers will measure how much nicot…

This study will measure how much nicotine enters the bloodstream when adult smokers use eight different e-cigarette products with various flavors (menthol, mint, tobacco, fruit). Forty healthy smokers, aged 21 to 60, will try each product in a random order while staying at a clin…

This study will enroll 40 healthy adult smokers to compare how much they crave different tobacco products. Participants will try heated tobacco devices, their usual cigarettes, and nicotine gum in a clinic setting. Researchers will measure their desire to smoke and nicotine level…

This study tests whether community health workers can help more eligible people get screened for lung cancer and quit smoking. The workers will reach out to patients, help them make informed decisions, offer smoking cessation counseling, and navigate barriers to care. The study w…