PROs in Chronic Cervical Pain Patients With Accompanying Upper Limb Radiating Pain Treated With Pregabalin

Inclusion Criteria: Subject who received the enough study information and signed informed consent form. Subject who had chronic pain with accompanying radiating pain to the superior limb beyond the elbow. Subject is male or female patient ≧20 years old. Subject who reported neck pain with accompanying radiating pain to superior limb (12 weeks or greater in duration at Visit 0). Subject who is refractory to previous analgesics for 12 weeks and more. Subject who is able and willing to complete all study related assessment tools and complied with scheduled clinic visits and clinical study procedures. Subject whose pain NRS ≧5 and PRSIS ≧1 at baseline (based on recall over the past week). Exclusion Criteria: Subject who, in the opinion of the investigator, was not likely to complete the trial for whatever reason. Subject who was treated with Pregabalin within the past 12 weeks (on baseline). Subject who has been regularly treated cervical pain with nerve blocks (such as stellate ganglion block, epidural block, radicular block and trigger point injection etc.).