Alternative antiandrogen therapy with flutamide in patients with castration-resistant prostate cancer : a single center experience

Alternative Antiandrogen Therapy with Flutamide in Patients with Castration-Resistant Prostate Cancer : A Single Center Experience We analyzed the clinical effects of flutamide (FLT) as a second-line agent for maximum androgen blockade (MAB) in patients with castration-resistant prostate cancer who...

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Veröffentlicht in:Hinyokika kiyo. Acta urologica Japonica. - 1962. - 57(2011), 6 vom: 31. Juni, Seite 291-5
1. Verfasser: Takada, Tsuyoshi (VerfasserIn)
Weitere Verfasser: Ishizuya, You, Okada, Takayuki, Ueda, Tomohiro, Inoue, Hitoshi, Hara, Tsuneo
Format: Aufsatz
Sprache:Japanese
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Hinyokika kiyo. Acta urologica Japonica
Schlagworte:English Abstract Journal Article Androgen Antagonists Anilides Antineoplastic Agents Nitriles Tosyl Compounds Flutamide 76W6J0943E bicalutamide mehr... A0Z3NAU9DP Prostate-Specific Antigen EC 3.4.21.77
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520 |a Alternative Antiandrogen Therapy with Flutamide in Patients with Castration-Resistant Prostate Cancer : A Single Center Experience We analyzed the clinical effects of flutamide (FLT) as a second-line agent for maximum androgen blockade (MAB) in patients with castration-resistant prostate cancer who received bicalutamide (BCL) as the first-line MAB agent. This study included 44 cases with progressive prostate cancer who had relapsed after first-line MAB, with BCL at 80 mg/day. After checking for antiandrogen withdrawal syndrome (AWS), they were given FLT at 375 mg/day as second-line MAB. A partial response (prostate-specific antigen [PSA] decline ≧50%) and no change (PSA decline of 0-50% or increase <25%) by second-line MAB with FLT were achieved in 34.1% (15/44) and 25.0% (11/44), respectively. The median duration of PSA response was 8.2+/-4.5 months. In multivariate analysis, Gleason score (≦7 vs ≧8), the first-line response (CR vs PR+NC), and the second-line response (PR+NC vs PD) were significantly predictive of cause-specific survival from first-line hormonal therapy relapse to cancer death. Our results confirm previous findings that alternative antiandrogen therapy is effective as a second-line hormonal therapy 
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700 1 |a Ishizuya, You  |e verfasserin  |4 aut 
700 1 |a Okada, Takayuki  |e verfasserin  |4 aut 
700 1 |a Ueda, Tomohiro  |e verfasserin  |4 aut 
700 1 |a Inoue, Hitoshi  |e verfasserin  |4 aut 
700 1 |a Hara, Tsuneo  |e verfasserin  |4 aut 
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