Abstract | BACKGROUND: METHODS: RESULTS: Forty-five patients received the combination treatment: 42 patients (93.3%) received all six cycles. Fourteen patients (31.1%) developed grade 3 or 4 toxicities, most commonly fatigue and neutropaenia. Fractures during the combination period occurred in four patients (8.9%). A further 13 patients (28.9%) developed fractures after completing combination treatment, giving a total of 17 patients (37.8%) who developed a fracture at any time on study. The median time to fracture was greater than 17.2 months [95% confidence interval (CI), 17.2-not estimable]. The median time to PSA progression was 18.1 months (95% CI, 12.68-22.60) and the median time to radiological/ clinical progression was 28.0 months (95% CI, 22.54-not reached). At the primary analysis, 19 (42.2%) out of 45 patients had died with a median OS not reached (mean 34.8 months, standard error 1.4). CONCLUSION: In men with progressive mCRPC and bone metastases, the combination of radium-223 and enzalutamide was tolerable with the majority of patients completing the combination treatment. Bone fractures during the combination period were uncommon; however, we did identify a higher incidence of fractures occurring in patients after completing combination treatment. Bone health agents should be administered and bone health should be closely monitored following treatment with radium-223 and enzalutamide.
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Authors | Raymond S McDermott, John Greene, John McCaffrey, Imelda Parker, Sylva Helanova, Anne-Marie Baird, Ausra Teiserskiene, Marvin Lim, Helen Matthews, Olwyn Deignan, John Feeney, Pierre G Thirion, Stephen P Finn, Paul J Kelly |
Journal | Therapeutic advances in medical oncology
(Ther Adv Med Oncol)
Vol. 13
Pg. 17588359211042691
( 2021)
ISSN: 1758-8340 [Print] England |
PMID | 34512801
(Publication Type: Journal Article)
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Copyright | © The Author(s), 2021. |