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Type: Book chapter
Title: Antiandrogen withdrawal syndromes: Pathophysiology and clinical implications
Author: Beekman, K.
Buchanan, G.
Tilley, W.
Scher, H.
Citation: Treatment Methods for Early and Advanced Prostate Cancer, 2008 / Kirby, R., Partin, A., Kellog Parsons, J., Feneley, M. (ed./s), pp.317-325
Publisher: Informa Healthcare
Publisher Place: London
Issue Date: 2008
ISBN: 0415458935
Editor: Kirby, R.
Partin, A.
Kellog Parsons, J.
Feneley, M.
Statement of
Kathleen W. Beekman, Grant Buchanan, Wayne D. Tilley and Howard I. Scher
Abstract: Introduction The “antiandrogen withdrawal syndrome” describes the anti-prostate cancer effects following the selective discontinuation of an antiandrogen such as flutamide, bicalutamide, or nilutamide in a patient with progressive prostate cancer treated with a combination of an antiandrogen and testicular androgen ablation. The effects, when they occur, do so in castrate patients with rising prostate-specific antigen (PSA) and/or clinical metastatic disease-points in the illness where the tumor is considered by many to be “hormone-refractory” (Figure 40.1)1. While the withdrawal syndrome was originally described with flutamide by three groups including our own in 1993,2-4 it was soon recognized that withdrawal responses could occur following the selective discontinuation of other hormones including estrogens, progestational agents, and glucocorticoids (reviewed by Kelly et al5). The responses were similar to what had been observed previously in breast cancer patients following discontinuation of tamoxifen.6,7 It would thus appear that designating these prostate tumors as “hormone-refractory” is a misnomer.
Rights: Copyright status unknown
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