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  • Title: Comparing Nalmefene and Naltrexone in Alcohol Dependence: Are there any Differences? Results from an Indirect Meta-Analysis.
    Author: Soyka M, Friede M, Schnitker J.
    Journal: Pharmacopsychiatry; 2016 Mar; 49(2):66-75. PubMed ID: 26845589.
    Abstract:
    BACKGROUND: The mu-opioid antagonist naltrexone is one of the few approved pharmacotherapies for the treatment of alcohol dependence. Recently, the mu-opioid antagonist and partial kappa agonist nalmefene was approved by the European Medicines Agency for the reduction of alcohol consumption in adult patients with alcohol dependence. To date, no head-to-head studies have compared the efficacy and safety of naltrexone and nalmefene in reducing alcohol consumption. METHODS: An indirect meta-analysis of randomized controlled studies on these 2 medications was conducted. A random effects model was used to measure effects and compare the 2 medications. 4 placebo-controlled studies with nalmefene and 13 with naltrexone were included. RESULTS: A statistically significant advantage of nalmefene towards naltrexone in the 2 patient-relevant outcome efficacy criteria, quantity and frequency of drinking, was found. Both drugs had a benign safety profile. CONCLUSIONS: This indirect meta-analysis indicates an advantage of nalmefene over naltrexone. Nalmefene is an effective and well-tolerated medication for the reduction of alcohol consumption. Additional data are necessary to demonstrate possible advantages of nalmefene over naltrexone in the treatment of alcohol dependence.
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