Amphetamine abuse

This study tests a non-invasive brain stimulation technique called targeted temporal interference stimulation (tTIS) aimed at the caudate nucleus. The goal is to reduce drug cravings and improve decision-making in 60 adults with methamphetamine use disorder. Participants will rec…

This study tests whether an app that gives financial rewards for drug-negative saliva tests works for older adults with opioid, cocaine, or methamphetamine use disorder. Researchers will compare results between older and younger participants to see if age affects how well the app…

This study tested a new way to stimulate the brain in people addicted to amphetamines. Nine adults received closed-loop transcranial alternating current stimulation (tACS), which adjusts the stimulation based on their real-time brain activity. The goal was to improve executive co…

This study tested whether a non-invasive brain stimulation technique called repetitive transcranial magnetic stimulation (rTMS) can reduce methamphetamine use in people already receiving methadone maintenance therapy. Fifty-five adults with both opioid and methamphetamine use dis…

This study tested two long-acting injectable medications, aripiprazole and paliperidone, in 165 people who use stimulants and have psychosis. The goal was to see if these drugs could better manage psychosis and prevent progression to chronic schizophrenia compared to standard tre…

This study tested a mobile app designed to help gay and bisexual men reduce their methamphetamine use and risky sexual behaviors. The app includes games, lessons, and resources. 226 men who use meth took part. The goal was to see if the app could help them cut back on meth and lo…

This study tested different combinations of counseling, rewards, and text reminders to help people on methadone therapy reduce methamphetamine use and improve HIV outcomes. 667 participants from methadone clinics in Vietnam took part. The goal was to find the best approach to sup…

This study tested a program called PRE-FAIR to prevent opioid and methamphetamine addiction in young parents (ages 16-30) already involved with Oregon's child welfare system. 240 parents who were at risk but not yet addicted were randomly assigned to either the PRE-FAIR program o…

This study tested a brain stimulation technique called closed-loop tACS in 21 people with methamphetamine addiction. The device uses brain wave patterns to deliver targeted electrical stimulation aimed at reducing cravings. Researchers measured craving levels and impulse control …

This study looked at whether a gentle brain stimulation technique called tACS can improve cognitive problems like memory and attention in people recovering from methamphetamine addiction. Researchers tested 68 participants using thinking tests, brain wave recordings, and blood sa…

This study tests whether recalling a positive memory can improve mood and decision-making in 80 adults recovering from methamphetamine use disorder. Participants will do computer tasks and brain scans before and after remembering a happy event or a neutral memory. The goal is to …

This early-phase trial tested the safety of a new drug called CS-1103 in 32 healthy adults. Researchers gave single doses by IV to see if it causes side effects and how the body processes it. The goal is to gather basic safety information before testing it in people with methamph…