Amphetamine abuse

This trial tests whether a single session of low-intensity focused ultrasound aimed at a brain region linked to reward and craving can safely reduce substance cravings and prevent relapse in people with severe opioid or amphetamine use disorder. Sixty participants will receive th…

This study tests an experimental drug called CS-1103 in 40 healthy adults with methamphetamine use disorder who are not seeking treatment. Participants receive a single dose of methamphetamine along with CS-1103 to see if the drug can safely reduce the effects of intoxication. Th…

This study tests a program that gives rewards (like gift cards) to people in Hawaii who are trying to stop using methamphetamine after a serious injury. 40 adults who were hospitalized and tested positive for meth will visit a clinic up to three times a week for urine tests. Rese…

This study looks at whether giving a high-dose prescription stimulant (lisdexamfetamine) for 25 weeks is feasible and acceptable for people with moderate to severe methamphetamine use disorder. About 80 participants will receive either the drug or a placebo alongside their usual …

This study tests whether giving financial incentives for negative drug tests can help people with opioid, cocaine, or methamphetamine use disorder stay abstinent. Six hundred participants use a smartphone app to submit saliva tests. Some receive escalating or de-escalating reward…

This study tests whether adding a high-dose stimulant medication and/or a reward-based program (contingency management) to standard care helps people reduce how often they use methamphetamine. About 440 adults with moderate to severe methamphetamine use disorder will be randomly …