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Hormone-Based Therapies for Castration-Resistant Prostate Cancer

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Prostate Cancer: A Comprehensive Perspective

Abstract

Androgen deprivation therapy (ADT) remains the primary treatment modality for patients with metastatic prostate cancer (PCa) but is uniformly marked by progression to castration-resistant prostate cancer (CRPC) over a period of about 18 months, with an ensuing median survival of 1–2 years. Continued activation of androgen receptor (AR) signaling despite suppression of circulating testosterone (T) appears to remain a critical driving force in tumor progression [1]. Accumulating data emphasize that “androgen-independent” or “hormone-refractory” tumors retain a clinically relevant degree of hormone sensitivity and highlight the continued importance of AR axis activity in advanced tumors [2]. Accordingly, therapeutic strategies designed to more effectively ablate androgen signaling are required to improve clinical efficacy and prevent disease progression. Herein, we review AR-dependent mechanisms underlying PCa progression following standard androgen deprivation strategies (summarized in Table 74.1) and discuss the rationale and status of new hormone-based therapies targeting the AR axis, which are currently in clinical and preclinical development (summarized in Table 74.2).

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Mostaghel, E.A., Nelson, P.S. (2013). Hormone-Based Therapies for Castration-Resistant Prostate Cancer. In: Tewari, A. (eds) Prostate Cancer: A Comprehensive Perspective. Springer, London. https://doi.org/10.1007/978-1-4471-2864-9_74

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