BJMO - volume 14, issue 7, november 2020
E. Seront MD, PhD, F. Jamar MD, PhD, K. Goffin MD, PhD, I. Billiet MD, V. Vanhaudenarde MD, A. Van den Eeckhaut MD, Sofie Willems MD, P. De Wil MD, A. Sacré MD, N. Mahy MD, R. Bierlaire , J. Deferme , D. Schrijvers MD, PhD
BELFIGO is a national retrospective chart review that aimed to assess the sequencing and application of radium-223 (Ra-223) within routine clinical practice, and evaluate the use of Ra-223 in monotherapy. The collection of data was primarily used to describe the proportion of Belgian metastatic Castration Resistant Prostate Cancer patients receiving one-four versus five-six Ra-223 injections, and the potentially associated patient characteristics. In total, 164 patients from eleven centres in Belgium were included and analysed in this study. Hundred-thirteen patients (69%) completed five-six injections of Ra-223. There was a trend that patients with a lower Eastern Cooperative Oncology Group Performance Status score, lower extent of disease on bone scan, alkaline phosphatase at baseline < 140 U/L and lactate dehydrogenase at baseline <250 U/L showed a higher chance of completing the six cycles of Ra-223. Median overall survival was estimated at 6.9 months for the patients having received one-four injections and 23.8 months for patients who completed five-six injections of Ra-223. More than 70% of patients received at least one treatment line after Ra-223, mainly enzalutamide, docetaxel or abiraterone acetate. These results show that the life-prolonging targeted alpha-therapy Ra-223 does not preclude the start of subsequent lines of treatment and that its use in an earlier line results, in a higher probability of reaching five-six doses. Patients with less advanced disease are more likely to complete five-six injections and tend to have a higher median overall survival.
(BELG J MED ONCOL 2020;14(7):347-54)
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