Overview Oxymorphone Extended Release (ER) in Opioid-Naive Patients With Chronic Pain Status: Completed Trial end date: 2004-03-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if oxymorphone ER is effective and safe in treating chronic pain in opioid-naive patients. Phase: Phase 3 Details Lead Sponsor: Endo PharmaceuticalsTreatments: Analgesics, OpioidOxymorphone