PMID- 19440008 OWN - NLM STAT- MEDLINE DCOM- 20090717 LR - 20220316 IS - 1423-0399 (Electronic) IS - 0042-1138 (Linking) VI - 82 IP - 3 DP - 2009 TI - Impact of surgical and medical castration on serum testosterone level in prostate cancer patients. PG - 249-55 LID - 10.1159/000209352 [doi] AB - INTRODUCTION: The paper aims at evaluating the role of testosterone levels and their cut-off points in the treatment of prostate cancer with androgen deprivation therapy. MATERIALS AND METHODS: We performed a non-systematic review of the literature, searching Medline using the following key words: 'Prostatic neoplasms/therapy' [MeSH], 'Buserelin' [MeSH], 'Goserelin' [MeSH], 'Leuprolide' [MeSH], 'Triptorelin' [MeSH], 'prostate cancer*' [tiab], and 'testoster*' [tiab]. RESULTS: The most commonly used cut-off point of testosterone to define castration was 50 ng/dl. In this respect, GnRH agonists allowed castration in a very high percentage of patients (87.5-100%). Specifically, triptorelin was reported to yield castration level of testosterone in 98.8%, the classical formulation of leuprolide in 95-98.8% of the cases, and Eligard, a novel formulation of leuprolide, in 99-100%. With regard to the 20-ng/dl breakpoint, available data suggest that goserelin yields castration level of testosterone in 96%, the classical formulation of leuprolide in 87-92% of the patients, and the novel formulation in 88-97.5%. CONCLUSIONS: The clinical significance of different levels of testosterone yielded during androgen deprivation therapy is still unknown. Considering the standard cut-off point of 50 ng/dl, GnRH agonists allowed castration in a very high percentage of patients. CI - Copyright 2009 S. Karger AG, Basel. FAU - Novara, Giacomo AU - Novara G AD - IRCCS Istituto Oncologico Veneto (IOV), University of Padua, Padua, Italy. giacomonovara@gmail.com FAU - Galfano, Antonio AU - Galfano A FAU - Secco, Silvia AU - Secco S FAU - Ficarra, Vincenzo AU - Ficarra V FAU - Artibani, Walter AU - Artibani W LA - eng PT - Journal Article PT - Review PT - Systematic Review DEP - 20090511 PL - Switzerland TA - Urol Int JT - Urologia internationalis JID - 0417373 RN - 0 (Androgen Antagonists) RN - 0 (Antineoplastic Agents, Hormonal) RN - 0 (Biomarkers) RN - 33515-09-2 (Gonadotropin-Releasing Hormone) RN - 3XMK78S47O (Testosterone) SB - IM MH - Androgen Antagonists/*therapeutic use MH - Antineoplastic Agents, Hormonal/*therapeutic use MH - Biomarkers/blood MH - Drug Monitoring MH - Gonadotropin-Releasing Hormone/*agonists MH - Humans MH - Male MH - *Orchiectomy MH - Prostatic Neoplasms/blood/drug therapy/surgery/*therapy MH - Testosterone/*blood MH - Treatment Outcome RF - 38 EDAT- 2009/05/15 09:00 MHDA- 2009/07/18 09:00 CRDT- 2009/05/15 09:00 PHST- 2008/07/18 00:00 [received] PHST- 2008/11/05 00:00 [accepted] PHST- 2009/05/15 09:00 [entrez] PHST- 2009/05/15 09:00 [pubmed] PHST- 2009/07/18 09:00 [medline] AID - 000209352 [pii] AID - 10.1159/000209352 [doi] PST - ppublish SO - Urol Int. 2009;82(3):249-55. doi: 10.1159/000209352. Epub 2009 May 11.