Nihon rinsho. Japanese journal of clinical medicine
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Although patients with castration-resistant prostate cancer frequently have metastases to the bone, they have a relatively favorable prognosis. Therefore, it is important to keep or improve the level of patient's quality of life. ⋯ A new bone-targeting radiopharmaceuticals using radium-223 is also promising, because a randomized trial showed an overall survival advantage of radium-223 in prostate patients with bone metastases. In this review, we summarize the role of targeted radionuclide therapy for castration-resistant prostate cancer, focusing on strontium-89 and radium-223.
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Androgen ablation therapy is performed for prostate cancer patients especially with advanced stage. Nevertheless, outgrowth of hormone independent cancer cells occurs within several years and leads to a lethal condition, so-called castration resistant prostate cancer (CRPC). ⋯ This review focuses on these AR antagonists that have some features including high affinity to AR compared with bicalutamide, preventing nuclear translocation and DNA binding. These new hormonal agents have changed the landscape of CRPC treatment with a promising outcome.