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Veterans Affairs Cooperative Studies Program Study #553: Chemotherapy After Prostatectomy for High-risk Prostate Carcinoma: A Phase III Randomized Study.
European Urology ( IF 25.3 ) Pub Date : 2020-01-08 , DOI: 10.1016/j.eururo.2019.12.020
Daniel W Lin 1 , Mei-Chiung Shih 2 , William Aronson 3 , Joseph Basler 4 , Tomasz M Beer 5 , Mary Brophy 2 , Matthew Cooperberg 6 , Mark Garzotto 5 , W Kevin Kelly 7 , Kelvin Lee 2 , Valerie McGuire 8 , Yajie Wang 2 , Ying Lu 8 , Vivian Markle 1 , Unyime Nseyo 9 , Robert Ringer 2 , Stephen J Savage 10 , Patricia Sinnott 2 , Edward Uchio 7 , Claire C Yang 1 , R Bruce Montgomery 1
Affiliation  

BACKGROUND The Veterans Affairs Cooperative Studies Program study #553 was designed to evaluate the efficacy of adjuvant chemotherapy added to the standard of care (SOC) for patients who are at high risk for relapse after prostatectomy. OBJECTIVE To test whether addition of chemotherapy to surgery for high-risk prostate cancer improves progression-free survival (PFS). DESIGN, SETTING, AND PARTICIPANTS Eligible patients after prostatectomy were randomized to the SOC group with observation or to the chemotherapy group with docetaxel and prednisone administered every 3 wk for six cycles. Randomization was stratified for prostate-specific antigen, Gleason, tumor stage, and surgical margin status. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary endpoint was PFS. Secondary endpoints included overall, prostate cancer-specific, and metastasis-free survival, and time to androgen deprivation therapy. RESULTS AND LIMITATIONS A total of 298 of the planned 636 patients were randomized. The median follow-up was 59.1 mo (0.2-103.7 mo). For the primary endpoint, the two groups did not statistically differ in PFS (median 55.5 mo in the chemotherapy group and 42.2 mo in the SOC group; test adjusted for site via gamma frailty p=0.21; adjusted hazard ratio [HR] 0.80; 95% confidence interval [CI] 0.58-1.11; p=0.18). Prespecified subgroup analyses showed benefit in PFS for patients with tumor stage ≥T3b (HR 0.54, 95% CI 0.32-0.92; p=0.022) and patients with Gleason score ≤7 (HR 0.65, 95% CI 0.43-0.99; p=0.046). Secondary endpoint analyses are hampered by low event rates. The most common adverse events (≥grade 3 related or possibly related to chemotherapy) included neutropenia (43%), hyperglycemia (20%), and fatigue (5%), with febrile neutropenia in 2%. CONCLUSIONS Adjuvant chemotherapy in high-risk prostate cancer using docetaxel and prednisone did not lead to statistically significant improvement in PFS for the intention-to-treat population as a whole. The analysis was challenged by lower power due to accrual limitation. Subgroup analyses suggest potential benefit for patients with Gleason grade ≤7 and stage≥pT3b (ClinicalTrials.gov number NCT00132301). PATIENT SUMMARY In this randomized trial, we tested whether addition of chemotherapy to surgery for high-risk prostate cancer decreased the risk of prostate-specific antigen rise after surgery. We found no benefit from docetaxel given after radical prostatectomy, although some subgroups of patients may benefit.

中文翻译:

退伍军人事务合作研究计划研究#553:前列腺切除术后高危前列腺癌的化学治疗:III期随机研究。

背景退伍军人事务合作研究计划研究#553旨在评估在前列腺切除术后复发风险高的患者中,在标准护理(SOC)中添加辅助化疗的疗效。目的测试高危前列腺癌手术中加入化疗是否可以改善无进展生存期(PFS)。设计,地点和参与者将符合条件的前列腺切除术后患者随机分为SOC组和观察组,或多西紫杉醇和泼尼松每3周给药6周的化疗组。根据前列腺特异性抗原,格里森,肿瘤分期和手术切缘情况进行随机分组。结果测量和统计分析主要终点为PFS。次要终点包括总体,前列腺癌特异性,和无转移生存,以及雄激素剥夺治疗的时间。结果与局限性计划的636例患者中有298例是随机分组的。中位随访时间为59.1 mo(0.2-103.7 mo)。对于主要终点,两组的PFS差异无统计学意义(化疗组中位数为55.5 mo,SOC组中位数为42.2 mo;通过伽玛弱点对试验部位进行校正p = 0.21;危险比[HR]为0.80; 95 %置信区间[CI] 0.58-1.11; p = 0.18)。预先进行的亚组分析显示,对于肿瘤分期≥T3b(HR 0.54,95%CI 0.32-0.92; p = 0.022)和Gleason评分≤7(HR 0.65,95%CI 0.43-0.99; p = 0.046)的患者,PFS获益)。次要终点分析因事件发生率低而受阻。最常见的不良事件(≥3级相关或可能与化疗相关)包括中性粒细胞减少症(43%),高血糖(20%)和疲劳(5%),高热性中性粒细胞减少症占2%。结论使用多西他赛和泼尼松对高危前列腺癌进行辅助化疗并未从总体上提高PFS的统计学显着性。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。发热性中性粒细胞减少症占2%。结论使用多西他赛和泼尼松对高危前列腺癌进行辅助化疗并未从总体上提高PFS的统计学显着性。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。发热性中性粒细胞减少症占2%。结论使用多西他赛和泼尼松对高危前列腺癌进行辅助化疗并未从整体上提高PFS的统计学显着性。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。结论使用多西他赛和泼尼松对高危前列腺癌进行辅助化疗并未从整体上提高PFS的统计学显着性。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。结论使用多西他赛和泼尼松对高危前列腺癌进行辅助化疗并未从整体上提高PFS的统计学显着性。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于Gleason≤7级且≥pT3b期的患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。由于应计限制,分析面临的挑战是降低功耗。亚组分析表明,对于格里森(Gleason)≤7级和≥pT3b级患者(ClinicalTrials.gov号NCT00132301)具有潜在的益处。病人总结在这项随机试验中,我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。我们测试了在高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。我们测试了针对高危前列腺癌的手术中添加化学疗法是否可以降低手术后前列腺特异性抗原升高的风险。尽管有些亚组患者可能会受益,但我们发现根治性前列腺切除术后给予多西他赛没有益处。
更新日期:2020-04-21
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