Human abuse potential (HAP) studies are conducted to determine the potential abuse of a drug that has rewarding properties. Abuse potential refers to the likelihood for a drug to be used in nonmedical situations for its positive psychoactive effects, eg, euphoria, hallucinations and mood changes. This poster considers subject selection and a study conducted by PRA Health Sciences to assess whether there were common cognitive and psychological characteristics of subjects who passed or failed the discrimination phase of a HAP study.

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