Efficacy and Safety Study of Adipiplon, Placebo and an Active Control in Primary Insomniacs

Clinilabs, Inc., New York

Neurotrials Research, Inc, Atlanta

Broward Research Group, Pembroke Pines

Miami Research Associates, South Miami

Tri-State Sleep Disorders Center, Cincinnati

Sleep and Behavior Medicine Institute, Vernon Hills

St. Luke's Hospital Sleep Medicine and Research Center, Chesterfield

Vince & Associates Clinical Research, Overland Park

Lynn Health Science Institute, Oklahoma City