A Clinical Study of ONO-1110 in Patients With Fibromyalgia

Inclusion Criteria: * Japanese (both sexes) * Outpatient * Patients who are considered capable of understanding the study procedures and completing the pain diary and questionnaires appropriately by the investigator (sub-investigator) * Patients who meet the American College of Rheumatology Fibromyalgia Criteria Exclusion Criteria: * Patients with inflammatory arthritis, infectious arthritis, or autoimmune disease * Patients with pain other than FM that may affect assessments in this study * Patients with a past history of or concurrent neurologic diseases that may affect assessments in this study * Patients with a past history of or concurrent malignant tumor within 3 years * Patients who are pregnant, nursing, or possibly pregnant, or intending to become pregnant during the study period.