12. Subject must be willing to discontinue any NSAIDs or other analgesic (eg, aspirin, acetaminophen) or potentially confounding concomitant treatments (eg, physiotherapy, acupuncture) starting at the first screening visit until completing participation in the study. (The use of ≤325 mg acetylsalicylic acid per day as cardiac prophylaxis is permitted.) The subject will be allowed to take rescue medication (acetaminophen) for pain during the study except during the 24 hours prior to the second screening visit, Baseline (Day1), Week 2, Week 5, Week 10, week 15, Week 20, Week 30, Week 40, and Week 52(EOS);