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  • Title: Comparing and Combining Topiramate and Aripiprazole on Alcohol-Related Outcomes in a Human Laboratory Study.
    Author: Haass-Koffler CL, Goodyear K, Zywiak WH, Leggio L, Kenna GA, Swift RM.
    Journal: Alcohol Alcohol; 2018 May 01; 53(3):268-276. PubMed ID: 29281033.
    Abstract:
    AIMS: The goal of this study was to evaluate the efficacy of topiramate up to 200 mg/day and of aripiprazole up to 15 mg/day, alone and combined, in reducing alcohol-related outcomes in a human laboratory study. METHOD: This was a 5 week, between-subject, double-blind, placebo-controlled human laboratory study with topiramate [0 mg/day (placebo), 100 mg/day, 200 mg/day] and aripiprazole [0 mg/day (placebo), 7.5 mg/day, 15 mg/day] in 90 non-treatment seeking, heavy drinking, alcohol-dependent individuals. Main outcomes were the efficacy of 200 mg/day topiramate and 15 mg/day aripiprazole, alone and combined, in reducing drinks consumed during an alcohol self-administration procedure (human laboratory phase) and while receiving the study medications prior to the laboratory session (naturalistic drinking phase). Other outcomes in the laboratory phase included alcohol craving, and alcohol biphasic effects. RESULTS: In the human laboratory phase, topiramate 200 mg/day reduced alcohol craving [**P < 0.01] and amplified alcohol-induced stimulation [*P < 0.05], but did not reduce the number of drinks consumed. Topiramate 200 mg/day was also effective in reducing drinking days [*P < 0.05], and alcohol craving [*P < 0.05], in the naturalistic drinking phase. No significant findings were found for aripiprazole for any of the outcomes analyzed. CONCLUSION: Participants receiving 200 mg/day topiramate reported reduced alcohol drinking and craving, and increased alcohol-related stimulation. These findings provide further support for the role of topiramate as a pharmacological treatment for AUD. CLINICALTRIAL.GOV IDENTIFIER: NCT00884884. SHORT SUMMARY: This study tested topiramate and aripiprazole alone and in combination. The results replicate past findings and suggest that topiramate may be an effective treatment for alcohol use disorder. The present results suggest that the combination of topiramate and aripiprazole do not warrant further evaluation.
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