Clinical profile of a new non-steroidal antiandrogen

C Mahler1, L Denis

  • 1Department of Endocrinology, A.Z. Middelheim, Antwerp, Belgium.

Insights

Casodex (bicalutamide) shows effectiveness in advanced prostate cancer by reducing PSA levels. While not peripherally selective, it offers good tolerance and fewer side effects compared to other antiandrogens.

Area of Science:

  • Oncology
  • Endocrinology

Background:

  • New non-steroidal antiandrogen, Casodex, demonstrates peripheral antiandrogen effects in animal models.
  • In advanced prostate cancer, Casodex lacks peripheral selectivity, impacting central androgen receptors.

Purpose of the Study:

  • To evaluate the efficacy and safety of Casodex in patients with advanced prostate cancer.
  • To assess the endocrine effects of Casodex treatment in this patient population.

Main Methods:

  • 18 patients with advanced prostate cancer received 50 mg of Casodex daily.
  • Treatment duration averaged 42 weeks, with assessments including PSA levels and endocrine evaluations.

Main Results:

  • Partial responses observed in some patients; 16/18 showed >50% reduction in PSA levels.
  • Significant increases in luteinizing hormone (LH), testosterone (T), and oestradiol (E) were noted, peaking early and then declining but not normalizing.
  • Good general tolerance, with gynecomastia as the most common side effect.

Conclusions:

  • Casodex appears effective in managing advanced prostate cancer, comparable to other antiandrogens.
  • Improved compliance and a favorable side effect profile suggest Casodex as a viable option.

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