Journal
ONCOTARGETS AND THERAPY
Volume 12, Issue -, Pages 9-13Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/OTT.S174206
Keywords
radium-223; pain; prostate cancer; radioactive therapy
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Background: Radium-223 dichloride is an alpha emitter approved for metastatic castration-resistant prostate cancer (mCRPC). Unfortunately, little data are available on the prognostic factors during radium-223-based therapy. Patients and methods: Patients with histologically confirmed progressive CRPC with two or more bone metastases and symptomatic disease were eligible. Previous therapy with a novel hormonal therapy was allowed. The patients received six intravenous injections of radium-223 every 4 weeks. A visual analog scale (VAS) was adopted to evaluate patients ' basal pain. Results: A total of 25 patients were evaluated. Of these, 6 (24%) reported VAS <4. After a median follow-up of 8 months, all patients died with a median overall survival of 8.3 months (95% CI: 5.2-11.8 months), 12.6 months in the patients with VAS <4 vs 6.6 months in the patients with VAS >= 4 (P=0.03). Conclusion: The present study suggests that VAS could be prognostic of the survival of mCRPC treated with radium-223 irrespective of the limitations of a small number of patients and the retrospective nature of the data.
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