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NIDA-CSP-1025
The primary efficacy objective of this study is to determine if topiramate relative to placebo reduces methamphetamine use in subjects with methamphetamine dependence as measured by quantitative urinalysis for methamphetamine. The primary efficacy outcome measure is negative methamphetamine use weeks during study Weeks 6 through 12. Data collected during this phase of treatment will be the focus of the primary outcome measure as this is the time period in which the subject will be treated with the maintenance dose of topiramate.
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