Clinical roundtable monograph: new and emerging treatments for advanced prostate cancer.
Historically, the treatment of metastatic castration-resistant prostate cancer (CRPC) has been limited to chemotherapeutic regimens that did not improve patient survival. In 2004, clinical studies began to demonstrate significant improvements in patient outcomes, including overall survival, with docetaxel versus mitoxantrone chemotherapy. Since these pivotal trials, the combination of docetaxel plus prednisone has become a standard of care for patients with metastatic CRPC. However, the limited survival benefit achieved with this regimen prompted several investigations into the development of alternative therapeutic options. Recent advances have now led to an unprecedented number of new drug approvals within the past year, providing many new treatment options for patients with metastatic CRPC. Sipuleucel-T, considered a new paradigm in cancer treatment, is the first such immunotherapeutic agent approved by the US Food and Drug Administration. Other successes include abiraterone acetate, the first androgen biosynthesis inhibitor, and cabazitaxel, a novel microtubule inhibitor, both of which have demonstrated improved survival following docetaxel failure. The bone-targeting agent denosumab, also recently approved in this setting, offers these patients significant improvement in the prevention of skeletal-related events. The data supporting the approval of each of these agents are described in this monograph, as are current approaches in the treatment of metastatic CRPC and ongoing clinical trials of novel treatments and strategies. The experts also discuss several of the issues regarding the introduction of these novel agents into clinical practice for metastatic CRPC patients.
George, DJ; Kantoff, PW; Lin, DW
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