Journal
JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Volume 23, Issue 4, Pages 278-291Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0885-3924(02)00383-4
Keywords
pain; osteoarthritis; once daily; morphine sulfate; extended-release; sustained-release
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A randomized, 4-week, double-blind trial followed by an open-label extension trial assessed the efficacy and safety of a once-daily, extended-release morphine formulation (Avinza(TM), (previously referred to as Morphelan(TM))) in 295 patients with chronic, moderate-to-severe osteoarthitis pain who had failed to obtain adequate pain relief with NSAIDs and acetaminophen. Participants received one of four treatments: Avinza 30 mg once daily (QAM or QPM), MS Contin(R) 15 mg twice daily, or placebo twice daily. Patients (n = 181) received Avinza QAM or QPM during the 26-week open-label extension trial and could increase their dose to optimize pain control. Avinza and MS Contin reduced pain and measures versus placebo. Analgesic efficacy was comparable between Avinza and MS Contin; however, Avinza QAM demonstrated greater improvements in over-all quality of The most of AEs occurred at a similar common adverse events were constipation and nausea. The majority of incidence among the active treatment groups. (C) US. Cancer Pain Relief Committee, 2002.
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