A randomized, double-blind, multicenter, placebo-controlled study to determine the efficacy and safety of BTDS compared to placebo in subjects with moderate to severe low back pain

INTERVENTION: Intervention name : BTDS Dosage And administration of the intervention : Transdermal CONDITION: Low Back Pain PRIMARY OUTCOME: The time to the development of inadequate analgesia. INCLUSION CRITERIA: [Inclusion Criteria] ‐ Males or females age 20 years or older. ‐ Clinical diagnosis of low back pain for 4 weeks or longer with non‐malignant pain etiology. [Exclusion Criteria] ‐ Subjects who have a current or past history of chronic disease(s), in addition to low back pain, requiring frequent analgesic therapy(e.g.headache, fibromyalgia, gout, rheumatoid arthritis, osteoarthritis and diabetic neuropathy).