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Impact of adjuvant androgen deprivation therapy after radical prostatectomy on the survival of patients with pathological T3b prostate cancer

医学 前列腺癌 前列腺切除术 雄激素剥夺疗法 辅助治疗 内科学 肿瘤科 泌尿科 癌症 佐剂 生化复发 妇科
作者
Sameer Siddiqui,Stephen A. Boorjian,Michael L. Blute,Laureano J. Rangel,Eric J. Bergstralh,R. Jeffrey Karnes,Igor Frank
出处
期刊:BJUI [Wiley]
卷期号:107 (3): 383-388 被引量:42
标识
DOI:10.1111/j.1464-410x.2010.09565.x
摘要

Study Type – Therapy (case series) Level of Evidence 4 What’s known on the subject? and What does the study add? Adjuvant hormonal therapy is known to improve cancer specific survival in prostate cancer patients with lymph node positive disease. This study suggests that surgically treated prostate cancer patients with seminal vesical invasion (pT3b) may have improved cancer specific survival if treated with adjuvant androgen deprivation therapy, similar to lymph node positive patients. OBJECTIVE To determine the impact of adjuvant androgen deprivation therapy (ADT) on survival in patients with seminal vesicle invasion (pT3b) at radical prostatectomy. PATIENTS AND METHODS We reviewed 12 115 patients who underwent radical prostatectomy between 1987 and 2002 to identify patients with pT3bN0 prostate cancer who received adjuvant ADT ( n = 191). These patients were matched by clinical and pathological variables to a group of patients with pT3b prostate cancer who did not receive adjuvant ADT. Median postoperative follow‐up was 10 years. Clinical endpoints included biochemical progression‐free survival (BPFS), local recurrence‐free survival (LRFS), systemic progression‐free survival (SPFS), cancer‐specific survival (CSS) and overall survival. RESULTS Patients who underwent adjuvant ADT experienced improved 10‐year BPFS (60% vs 16%, P < 0.001), LRFS (87% vs 76%, P = 0.002), SPFS (91% vs 78%, P = 0.004) and CSS (94% vs 87%, P = 0.037). Overall survival was not significantly different between groups (75% vs 69%, P = 0.12). Both luteinizing hormone‐releasing hormone agonists (hazard ratio, 0.26; 95% CI, 0.15–0.46; P < 0.001) and bilateral orchiectomy (hazard ratio, 0.13; 95% CI, 0.06–0.31; P < 0.001) improved BPFS. When stratified by type of ADT (hormonal therapy vs orchiectomy), there was no difference in survival outcomes. CONCLUSIONS Adjuvant ADT improves local, and systemic control after radical prostatectomy for pT3b prostate cancer. There is no difference in survival between patients receiving medical hormonal therapy vs patients undergoing orchiectomy. Given the lack of improvement in overall survival, continued investigation is needed to identify the cohort of pT3b patients at highest risk for cancer progression and therefore most likely to benefit from a multimodal treatment approach.
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