Blackwell Science, LtdOxford, UKADDAddiction1359-6357© 2005 Society for the Study of Addiction 100•••• Original Article Cabergoline, hydergine, levodopa/carbidopa Steven Shoptaw et al. RESEARCH REPORT Randomized controlled pilot trial of cabergoline, hydergine and levodopa/carbidopa: Los Angeles Cocaine Rapid Efficacy Screening Trial (CREST) Steven Shoptaw1, Donnie W. Watson2, Chris Reiber1, Richard A. Rawson1, Margaret A. Montgomery3, Maria D. Majewska3 & Walter Ling1 UCLA Integrated Substance Abuse Programs, Los Angeles, CA1 , Friends Research Institute, Inc., Los Angeles, CA2 and National Institute on Drug Abuse, Division of Treatment Research and Development, Bethesda, MD, USA3 Correspondence to: ABSTRACT Steven Shoptaw PhD UCLA/Integrated Substance Abuse Programs Aim This study tested three dopaminergic medications against a common 11075 Santa Monica Blvd unmatched placebo condition: hydergine 1 mg three times daily (n = 15); Suite 200 levodopa/carbidopa 25/100 mg three times daily (n = 15); cabergoline 0.5 mg Los Angeles per week (n = 15); and placebo three times daily (n = 15) as potential pharma- CA 90025 USA cotherapies for cocaine dependence. E-mail:
[email protected] Design The four-parallel group, Cocaine Rapid Efficacy Screening Trial (CREST) design featured a 2-week baseline period followed by randomization to an 8-week medication condition that included 1 hour per week of cognitive RESEARCH REPORT behavioral drug counseling. A safety evaluation was conducted 4 weeks after termination. Measures Outcomes included cocaine metabolites measured in urine, reten- tion and self-reports for drug use, cocaine craving, clinical improvement, mood and HIV risk behaviors. Results Participants assigned to receive cabergoline provided more urine sam- ples negative for cocaine metabolites (42.4%) than those assigned to receive pla- cebo (25.0%), a statistically significant difference after controlling for baseline differences in self-reported cocaine use (F = 2.95, df = 3; P = 0.05).