The purpose of the study is to assess efficacy and safety of eplivanserin in the population of patients complaining of sleep maintenance insomnia. The patients suffering from that condition frequently wake up during the night, their sleep is nonrestorative and they suffer from a significant distress or impairment in their daily activities consecutive to insomnia.
The study is being conducted worldwide. It consists of 4 segments: * Segment A: 7-day run-in (screening) * Segment B: 12-week double blind treatment * Segment C: 40-week open treatment extension * Segment D: 2-week run-out period
oral administration
oral administration
Buenos Aires, Argentina