[Alpha emitter radium-223 dichloride: new therapy in castration-resistant prostate cancer with symptomatic bone metastases].

Radium-223 dichloride (Ra-223) is an alpha emitter with low toxicity for the treatment of patients with castrations-resistant prostate cancer (CRPC) and symptomatic bone metastases showing a 30% reduction in the risk of death, as compared to placebo. Because of the favorable physical and chemical characteristics, Ra-223 can be handled easily in daily practice based on interdisciplinary co-operation between urology and nuclear medicine. Ra-223 has been approved under the product name Xofigo® by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA).