Study Evaluating EAA-090 in Adult Outpatients With Neuropathic Pain Associated With Diabetic Neuropathy

Inclusion Criteria: * Women of childbearing potential must have a negative serum pregnancy test result at screening * Diabetes mellitus (type I or II) that is controlled by oral or parenteral hypoglycemic agents or diet * Diagnosis of painful diabetic distal symmetric sensory/motor polyneuropathy Exclusion Criteria: * Pregnancy, lactation, or plans to become pregnant during the study * Depo-Provera or oral contraceptives that have been taken for less than 1 month before study day 1 if not using another medically accepted form of birth control * History of multiple drug allergies that may put the subject at greater risk during study participation in the opinion of the investigator