Updates in the Treatment of Non-Metastatic Castrate-Resistant Prostate Cancer: The Benefit of Second-Generation

Matthew J Hadfield1, Vikram Lyall2, Lisa M Holle3

  • 1Department of Medical Oncology, The Warren Alpert Medical School, Brown University, Providence, RI, USA.

Abstract

Insights

Second-generation androgen receptor antagonists effectively delay metastasis and prolong survival in men with nonmetastatic castrate-resistant prostate cancer (M0CRPC). These treatments are generally well-tolerated, maintaining quality of life.

Area of Science:

  • Oncology
  • Pharmacology
  • Urology

Background:

  • Nonmetastatic castrate-resistant prostate cancer (M0CRPC) is a critical stage in prostate cancer progression.
  • Effective treatment strategies are needed to delay metastasis and improve survival in M0CRPC patients.

Purpose of the Study:

  • To review the pharmacology, efficacy, safety, and clinical considerations of second-generation androgen receptor (AR) antagonists for M0CRPC.
  • To synthesize current evidence on apalutamide, darolutamide, and enzalutamide in M0CRPC management.

Main Methods:

  • Comprehensive literature search of PubMed and Google Scholar (2002-2022).
  • Inclusion of English-language human studies evaluating second-generation AR antagonists for M0CRPC.
  • Consideration of additional articles and drug package inserts.

Main Results:

  • Second-generation AR antagonists (apalutamide, darolutamide, enzalutamide) delay metastasis in M0CRPC with rapid PSA doubling time (<10 months).
  • Common side effects include fatigue and hypertension; quality of life is generally maintained.
  • No head-to-head trials exist; drug interactions, administration, and cost (~$15,000/month) vary.

Conclusions:

  • Second-generation AR antagonists improve disease control and prolong survival in M0CRPC patients with PSA doubling time <10 months.
  • These agents are generally well-tolerated, preserving quality of life.
  • Treatment selection depends on adverse effects, drug interactions, administration, cost, and patient preference.

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