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Memantine shows promise in reducing gambling severity and cognitive inflexibility in pathological gambling: a pilot study.


ABSTRACT: Although pathological gambling (PG) is relatively common, pharmacotherapy research for PG is limited. Memantine, an N-methyl D-aspartate receptor antagonist, appears to reduce glutamate excitability and improve impulsive decision making, suggesting it may help individuals with PG.This study sought to examine the safety and efficacy of Memantine in PG.Twenty-nine subjects (18 females) with DSM-IV PG were enrolled in a 10-week open-label treatment study of memantine (dose ranging from 10 to 30 mg/day). Subjects were enrolled from January 2009 until April 2010. Change from baseline to study endpoint on the Yale Brown Obsessive Compulsive Scale Modified for Pathological Gambling (PG-YBOCS) was the primary outcome measure. Subjects underwent pre- and post-treatment cognitive assessments using the stop-signal task (assessing response impulsivity) and the intra-dimensional/extra-dimensional (ID/ED) set shift task (assessing cognitive flexibility).Twenty-eight of the 29 subjects (96.6%) completed the 10-week study. PG-YBOCS scores decreased from a mean of 21.8?±?4.3 at baseline to 8.9?±?7.1 at study endpoint (p?

SUBMITTER: Grant JE 

PROVIDER: S-EPMC3465841 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Memantine shows promise in reducing gambling severity and cognitive inflexibility in pathological gambling: a pilot study.

Grant Jon E JE   Chamberlain Samuel R SR   Odlaug Brian L BL   Potenza Marc N MN   Kim Suck Won SW  

Psychopharmacology 20100819 4


<h4>Rationale</h4>Although pathological gambling (PG) is relatively common, pharmacotherapy research for PG is limited. Memantine, an N-methyl D-aspartate receptor antagonist, appears to reduce glutamate excitability and improve impulsive decision making, suggesting it may help individuals with PG.<h4>Objective</h4>This study sought to examine the safety and efficacy of Memantine in PG.<h4>Methods</h4>Twenty-nine subjects (18 females) with DSM-IV PG were enrolled in a 10-week open-label treatmen  ...[more]

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