National Institute On Drug Abuse (nida)

This Phase 3 trial tests whether a combination of extended-release naltrexone (Vivitrol) and bupropion XL (Wellbutrin) can help people with moderate to severe methamphetamine use disorder reduce their drug use. About 360 participants will receive either the active drugs or placeb…

This study tests whether semaglutide, a drug used for diabetes and weight loss, can help people with alcohol use disorder drink less. About 80 adults will receive either the drug or a placebo shot weekly for 5 months. Researchers will measure changes in drinking, brain activity, …

This early-phase study tests whether spironolactone, a drug currently used for high blood pressure and heart failure, can be safely used in people with alcohol use disorder. Twenty participants will each stay at a clinic four times, taking either the drug or a placebo for five da…

This pilot study tests whether engaging in enjoyable activities and virtual reality can reduce alcohol cravings and drinking in people with alcohol use disorder. About 44 adults will attend up to 10 visits, comparing active sessions (games, VR, crafts) with passive sessions (watc…

This study looks at how people with opioid-use disorder learn and make choices compared to those without the disorder. Participants will complete a computer task where shapes are paired with different food odors. The goal is to understand if differences in learning and decision-m…

This study aims to create a large data repository by collecting smartphone data and daily surveys from 10,000 adults who use alcohol or drugs. Participants will use an app that tracks phone activity and location, and answer short surveys about mood and substance use. The goal is …

This study uses transcranial magnetic stimulation (TMS) to see how it affects brain activity during learning and decision-making tasks. Researchers will test up to 600 healthy adults aged 18-45. Participants may undergo TMS, brain scans, and computer tasks to measure responses.

This study looks at how nicotine changes brain function in people with and without major depressive disorder (MDD). Researchers will give 620 non-smokers either a nicotine patch or a placebo and then scan their brains using MRI. Participants will also answer questions about their…

This study is developing new MRI techniques to better understand how drug addiction changes the brain. Researchers will scan 1,000 healthy adults, smokers, and drug users to improve imaging methods. The goal is to create tools that can reveal the brain's structure and function in…

This study looks at how transcranial magnetic stimulation (TMS) changes brain activity in healthy adults. TMS uses magnetic pulses to stimulate the brain and is already approved for depression. Researchers want to understand these brain changes to help design better treatments fo…

This study screens up to 10,000 adults aged 18-99 who have current, past, or no substance or alcohol use disorders. Participants undergo one visit with tests like physical exams, blood work, memory tests, and mental health evaluations. The goal is to find eligible volunteers for …

This study is developing and testing new tasks to measure how people learn and make decisions. Researchers will use smells, tastes, pictures, sounds, and even food to see how the brain responds. Some participants will also have an fMRI scan. The goal is to create reliable tests f…

This study tests whether suvorexant, a drug approved for insomnia, can reduce cravings and brain responses linked to smoking in daily smokers. Researchers will also study how it affects thinking and reward processing in non-smokers. The goal is to understand if blocking a brain c…