The Medical Letter on Drugs and Therapeutics
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1426
Radium-223 (Xofigo) for Prostate Cancer
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Radium Ra 223 dichloride (Xofigo – Bayer), a radiotherapeutic drug, has been approved by the FDA for intravenous treatment of castration-resistant prostate cancer with symptomatic bone metastases and no known visceral metastatic disease.

MECHANISM OF ACTION — Radium-223 is a calcium mimetic that targets and binds to areas of high bone turnover, such as sites of bone metastases, and releases high-energy, short-range (<100 micrometers) alpha particles to produce a localized cytotoxic effect.

STANDARD TREATMENT — Docetaxel-based chemotherapy, abiraterone acetate (Zytiga), cabazitaxel (Jevtana), enzalutamide (Xtandi), and the autologous immunotherapy agent sipuleucel-T (Provenge) have each been shown to prolong survival in men with metastatic castration-resistant prostate cancer.1-3 Although not ... more      

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Title: Radium-223 (Xofigo) for Prostate Cancer
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