Efficacy Study of Lisdexamfetamine to Treat Binge Eating Disorder

Inclusion Criteria: * Patients will meet DSM-IV criteria for BED for at least the last 6 months Exclusion Criteria: * Women who are pregnant or lactating and women of childbearing potential who are not taking adequate contraceptive measures. If there is a possibility a female subject might be pregnant, a pregnancy test will be performed. (All women of childbearing potential will have a negative pregnancy test before entering the study.) * Subjects who are displaying clinically significant suicidality or homicidality. * A current or recent (within 6 months of the start of study medication) DSM-IV diagnosis of substance abuse or dependence