Overview NORSPAN Transdermal Patches Phase III Study In Non-Cancer Pain Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary This is a multiple-dose, double-blind, double-dummy, active-control, parallel-group, multi-center, safety and efficacy study. Phase: Phase 3 Details Lead Sponsor: Mundipharma (China) Pharmaceutical Co. LtdTreatments: BuprenorphineTramadol