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L Klotz, A Loblaw, R Siemens, P Ouellette, A Kapoor, M Kebabdjian, L Zhang, F Saad
BACKGROUND: In men initiating intermittent androgen deprivation therapy (IADT), a range of induction durations, between 3 and 12 months, have been employed. OBJECTIVE: To determine if the duration of induction ADT influences the duration of the off treatment interval and the recovery of serum testosterone (T). MANEUVER: This was a prospective, randomized, open label study. Men with biochemical recurrence after local therapy for prostate cancer, with a negative bone scan, were randomized between 4 and 10 months of monthly Degarelix...
March 10, 2018: Journal of Urology
Harri Visapää
INTRODUCTION: Luteinizing hormone-releasing hormone (LHRH) analogues are widely used for the treatment of advanced hormone-dependent prostate cancer. However, there are currently no clinical guidelines for switching between LHRH analogues. It has been reported that there may be clinical benefits for patients switching between different formulations of LHRH agonists, as well as from an LHRH agonist to LHRH antagonist, but there are no published data on switching from an LHRH antagonist to an LHRH agonist...
2017: Oncology and Therapy
Valeria Fadda, Dario Maratea
BACKGROUND: When analyzing the use of luteinizing hormone-releasing hormone (LHRH) analogues for different clinical indications, current available evidence does not support a presumed drug class effect among the various LHRH in the treatment of prostate cancer. METHODS: The following search key words were entered in the PubMed database and the NICE and FDA websites: “LHRH agonist AND prostatic cancer”, “androgen deprivation therapy”, “androgen suppression”, “buserelin”, “leuprorelin”, “goserelin”,“triptorelin”, “degarelix”...
December 2015: Recenti Progressi in Medicina
Götz Geiges, Thomas Harms, Gerald Rodemer, Ralf Eckert, Frank König, Rolf Eichenauer, Jörg Schroder
BACKGROUND: We investigated the use of the gonadotropin-releasing hormone (GnRH) antagonist degarelix in everyday clinical practice using registry data from uro-oncology practices in Germany. METHODS: Data were analysed retrospectively from the IQUO (Association for uro-oncological quality assurance) patient registry. Data were prospectively collected from all consecutive PCa patients treated with degarelix (n = 1010) in 138 uro-oncology practices in Germany between May 2009 and December 2013...
December 16, 2015: BMC Urology
Natalie J Carter, Susan J Keam
Degarelix (Firmagon(®); Gonax(®)) is a gonadotropin-releasing hormone receptor antagonist that is approved for the treatment of advanced (hormone-dependent) prostate cancer in the US and EU and the treatment of prostate cancer in Japan. In a pivotal randomized, controlled, 12-month phase III study, degarelix (initial subcutaneous dose of 240 mg followed by monthly dosages of 80 mg) was noninferior to leuprolide (monthly intramuscular dosages of 7.5 mg) in patients with prostate cancer of any stage for which endocrine treatment was indicated (except neoadjuvant hormonal therapy) with regard to suppression of testosterone to castration levels (i...
April 2014: Drugs
David Ulmert, Andrew J Vickers, Howard I Scher, Charlotte Becker, Peter Iversen, David Frankel, Jens-Kristian Jensen, Tine Kold Olesen, Hans Lilja
BACKGROUND: The utility of conventional prostate-specific antigen (PSA) measurements in blood for monitoring rapid responses to treatment for prostate cancer is limited because of its slow elimination rate. Prior studies have shown that free PSA (fPSA), intact PSA (iPSA) and human kallikrein-related peptidase 2 (hK2) are eliminated more rapidly after radical prostatectomy. In contrast, all three markers have similarly slow elimination rates after castration induced by gonadotropin-releasing hormone (GnRH) agonists, possibly due to the slow onset of castration...
November 2012: Clinical Chemistry and Laboratory Medicine: CCLM
Laurence Klotz
Pharmacological methods of achieving androgen deprivation for the treatment of prostate cancer have evolved. New strategies are focusing on avoidance of the undesirable effects of testosterone surges or flares associated with the initial stages of gonadotropin-releasing hormone (GnRH) agonists and the significant histamine-mediated side effects that can be associated with GnRH antagonists. Degarelix acetate (Firmagon; Ferring Pharmaceuticals) is a third-generation GnRH antagonist that has been shown to produce a significantly more rapid medical castration (without testosterone surge) and prostate-specific antigen response compared with GnRH agonists...
October 2009: Drugs of Today
Laurent Boccon-Gibod, Peter Iversen, Bo-Eric Persson
Gonadotrophin-releasing hormone (GnRH) receptor blockers (antagonists) are the latest addition to the hormonal therapy armamentarium for patients with prostate cancer. In contrast to the GnRH agonists, GnRH blockers have an immediate onset of action and do not cause an initial surge in testosterone levels that can lead to clinical flare in patients with advanced disease. Degarelix (Firmagon is a new GnRH blocker that has recently been approved by the EMEA and US FDA for the treatment of men with hormone-sensitive advanced prostate cancer...
December 2009: Expert Review of Anticancer Therapy
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October 19, 2009: Medical Letter on Drugs and Therapeutics
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