Randomized, Double-Blind, Placebo Controlled Study of Vilazodone's Efficacy, Safety, and Biomarkers of Response in Major Depressive Disorder (MDD)

University of Pennsylvania Department of Psychiatry Mood and Anxiety Disorders, Philadelphia

Atlanta Institute of Medicine and Research, Atlanta

Florida Clinical Research Center, Bradenton

Mood Disorders Research Program and Clinic Exchange Park, Dallas

University of Utah Health Sciences Ctr, Dept of Psychiatry Mood Disorders Clinic, Salt Lake City

Pharmacology Research Institute, Newport Beach

Summit Research Network, Portland

Northwest Clinical Research Center, Bellevue

Summit Research Network, Seattle