William Stoops

This study tests whether a drug called troiluzole can reduce the appeal of methamphetamine for people with methamphetamine use disorder. About 40 adults who use meth but are not seeking treatment will take the drug and then choose between meth and money in a lab setting. The goal…

This study tests whether pentoxifylline, an anti-inflammatory drug, can reduce how rewarding cocaine feels. Thirty adults with cocaine use disorder who are not seeking treatment will take the drug and then choose between cocaine and money. The goal is to see if calming immune inf…

This study tests whether reducing methamphetamine use—without requiring complete abstinence—can improve health and quality of life. Researchers will give 300 adults with methamphetamine use disorder payments for providing drug-free urine samples over 12 weeks. They will measure b…

This early-phase study tests whether suvorexant, a drug used for insomnia, can reduce people's motivation to drink alcohol. Thirty adults with moderate to severe Alcohol Use Disorder will receive suvorexant or a placebo, then choose between alcohol and money. Researchers will mea…