Safety, Survival Advantages of Radium-223 Continue to Offer Benefit in mCRPC

Excerpt:

“The manageable safety profile of radium-223 dichloride (Xofigo) compared with other radiopharmaceuticals is appealing to oncologists treating castration-resistant prostate cancer (CRPC) that is metastatic to the bone, says Richard G. Stock, MD.

“ ‘With previous radiopharmaceuticals, there has been a limitation with bone marrow toxicity,’ said Stock, senior faculty, Radiation Oncology, Mount Sinai Hospital. ‘Radium-223 really spares the bone marrow to a much greater degree than prior treatments, and that is why it has been embraced and much more widely utilized than any of the other radiopharmaceuticals.’ ”

“The FDA approved radium-223 in May 2013 based on findings from the phase III ALSYMPCA trial. In the study, radium-223 demonstrated a median overall survival of 14.9 months compared with 11.3 months with placebo for patients with bone-metastatic CRPC (HR, 0.70; P <.001).”

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