Depression Study In Elderly Patients

Inclusion Criteria: * Diagnosis of Major Depressive Disorder (MDD). * Current major depressive episode at screen at least 2 months duration. * Must be at least 60 years of age. Exclusion Criteria: * Patients with a primary diagnosis other than MDD. * Patients with a history of schizophrenia, schizoaffective disorder, bipolar disorder or dementia. * Patients with a history of brief depressive episodes lasting less than 8 weeks. * Patients receiving formal psychotherapy within 12 weeks of study. * Patients who are suicidal. * Patients who have received electroconvulsive therapy or transcranial magnetic stimulation within 6 months prior to screening. * Patients with a history or seizure disorders.