Dataset from Phase II Study of ASP0456 - A Double-blind, Placebo-controlled, Parallel-group, Comparative Study in Patients With Chronic Constipation (Not Including Constipation Due to Organic Diseases)

The objective of this study is to investigate dose-responses of efficacy and safety of ASP0456 in patients with chronic constipation (diagnosed by Rome III criteria of functional constipation (FC), not including constipation due to organic diseases) compared to placebo and to find the appropriate dose for P3 study.