Last updated on December 2009

Morphine After Radiofrequency Ablation of Painful Bone Metastases in Patients With Cancer


Brief description of study

RATIONALE: Morphine may reduce pain in patients who have undergone radiofrequency ablation to remove bone metastases. PURPOSE: This phase II trial is studying how well morphine works after radiofrequency ablation of painful bone metastases in patients with cancer.

Detailed Study Description

OBJECTIVES: Primary - Measure the efficacy of morphine sulfate at 8 weeks after radiofrequency ablation (RFA) of bone metastases. Secondary - Assess minimum and average pain and analyze use of morphine sulfate before and after RFA. - Determine disease progression by CT scan of bone. - Evaluate the percentage of relief associated with RFA, specifically patient satisfaction, quality of life, anxiety, depression, and physical performance during RFA. - Assess complications and side effects related to RFA and the evolution of possible side effects associated with morphine sulfate therapy. OUTLINE: This is a multicenter study. Patients complete a pain questionnaire over 1 week before undergoing radiofrequency ablation (RFA). Patients also complete questionnaires about pain, physical performance, quality of life (QOL), and anxiety at baseline. Bone metastases are removed by radiofrequency ablation (RFA). After surgery, patients receive acetaminophen and patient-controlled analgesic (PCA) morphine sulfate. PCA morphine sulfate continues with a dose increase of 50% bolus every 24 hours. Patients with maximum pain less than or equal to that at inclusion receive standard morphine sulfate therapy instead. Data concerning the total dose of PCA morphine sulfate; minimum, average, and maximum pain intensity; side effects and complications of RFA; and total dose of morphine sulfate (or equivalent) is collected daily. Pain is assessed at 4 and 8 weeks after RFA. Patients complete follow-up questionnaires about physical performance, QOL, and anxiety at 12 weeks. Patients also undergo a CT scan at 12 weeks.

Clinical Study Identifier: NCT00712712

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Recruitment Status: Open


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