Irinotecan versus best supportive care (BSC) as second-line therapy in gastric cancer: A randomized phase III study of the Arbeitsgemeinschaft Internistische Onkologie (AIO).

Irinotecan versus best supportive care (BSC) as second-line therapy in gastric cancer: A randomized phase III study of the Arbeitsgemeinschaft Internistische Onkologie (AIO).
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伊立替康与最佳支持治疗 (BSC) 作为胃癌二线治疗的对比:Arbeitsgemeinschaft Internistische Onkologie (AIO) 的一项随机 III 期研究。

DOI:
10.1200/jco.2009.27.15_suppl.4540
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发表时间:
2009
期刊:
Journal of clinical oncology : official journal of the American Society of Clinical Oncology
影响因子:
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通讯作者:
Peter Reichardt
Peter Reichardt
中科院分区:
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文献类型:
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作者:
P. Thuss;A. Kretzschmar;T. Deist;Axel Hinke;D. Bichev;B. Lebedinzew;Guido Schumacher;B. Gebauer;V. Maier;Peter Reichardt

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4540背景:到目前为止,转移性胃癌二线治疗的价值尚不清楚。到目前为止,还没有比较二线化疗与BSC的随机III期数据。伊立替康已被证明在一线治疗中具有活性。在这项随机III期研究中,我们比较了伊立替康与BSC,以评估胃癌二线化疗的价值。 方法 前瞻性多中心随机III期研究,开放标签。合格性:转移性或局部晚期胃食管交界处或胃腺癌。一线化疗后6个月内的客观肿瘤消退(PD)。ECOG PS 0-2。 统计 主要终点:总生存期(OS)。 假设 H1:OS(伊立替康)>OS(BSC)。计算的所需患者数量(把握度80%,α误差5%):每组60例患者。分层为a)一线化疗后3个月以上PD较低vs(vs),B)ECOG PS 0/1 vs 2。 治疗 A组:伊立替康250 mg/m2 q3 w(第1周期)增加至350 mg/m2,取决于毒性。B组:BSC结果:2002年10月至2006年12月,40例患者接受随机化。由于入组不良,研究提前关闭。A组:21例患者,B组19例患者。中位年龄A:58岁(43-73岁),B:55岁(35-72岁);一线化疗后PD小于3个月vs超过3个月:A:18 / 3,B:17 /2例患者。ECOG PS 0/1 vs 2:A:17/ 4,B:14/5例患者。顺铂预治疗:A组:21例,B组:19例。A组:21例患者接受68个周期给药。 毒性 (main CTC 3/ 4级):恶心1例,呕吐1例,腹泻5例,贫血性发热2例,数据不完整6例。在19例可评价患者中,37%的伊立替康剂量递增至350 mg/m2。缓解(19名患者可评估):无客观缓解,SD 58%,PD 42%。肿瘤相关症状改善:A组44%的患者,B组5%。存活率:(A组可评价患者21例,B组18例):A组中位生存期:123天(95%CI 95-216),B组72.5天(95%CI 41-106); OS:HR=2.85(95%CI 1.41-5.79),对数秩检验(双侧):p=0.0027。 结论 据我们所知,这是第一项研究胃癌二线化疗的随机III期研究。与BSC相比,伊立替康作为二线化疗显著延长了总生存期。二线化疗现在可以被认为是胃癌的一种经过验证的选择。[表:见正文]。
4540 Background: Up to now the value of 2nd-line therapy for metastatic gastric cancer is unclear. So far there are no randomized phase III data comparing 2nd-line chemotherapy to BSC. Irinotecan has proven activity in 1st-line therapy. In this randomized phase III study we compared irinotecan to BSC to evaluate the value of 2nd- line chemotherapy for gastric cancer. METHODS Prospective multicenter randomized phase III study, open label. Eligibility: Metastatic or locally advanced gastro-esophageal junction or gastric adenocarcinoma. Objective tumor progession (PD) within 6 months after 1st- line chemotherapy. ECOG PS 0-2. STATISTICS Primary endpoint: Overall survival (OS). HYPOTHESIS H1: OS(Irinotecan)>OS(BSC). Calculated number of pts needed (power 80%, alpha error 5%): 60 pts per arm. Stratification for a) PD less versus (vs) more than 3 months after 1st line chemotherapy, b) ECOG PS 0/1 vs 2. TREATMENT Arm A: Irinotecan 250mg/m2 q3w (1st cycle) to be increased to 350 mg/m2, depending on toxicity. Arm B: BSC Results: Between Oct 2002 and Dec 2006 40 pts were randomized. The study was closed prematurely due to poor accrual. Arm A:21 pts, arm B 19 pts. Median age A: 58 yrs (43-73), B: 55 yrs (35-72); PD less vs more than 3 months after 1st-line chemotherapy: A: 18 / 3, B: 17 / 2pts. ECOG PS 0/1 vs 2: A: 17/ 4, B: 14/ 5pts. Pre-treatment with cisplatin: A: 21, B:19 pts. Arm A: 68 cycles administered in 21 pts. TOXICITY (main CTC grade 3/ 4): Nausea 1 pt, vomiting 1 pt, diarrhoea: 5 pts, neutropenic fever: 2 pts, data incomplete 6 pts. In 37% of 19 evaluable pts irinotecan dose was escalated to 350mg/m2. Response (19 pts evaluable): No objective responses, SD 58%, PD 42%. Improvement of tumor related symptoms: 44% of pts in arm A, 5% in arm B. Survival: (evaluable pts arm A 21, arm B 18): median survival arm A: 123 days (95%CI 95-216), arm B 72.5 days (95%CI 41-106); OS: HR=2.85 (95%CI 1.41-5.79), Logrank test (two-sided): p=0.0027. CONCLUSIONS To our knowledge this is the first randomized phase III study investigating 2nd- line chemotherapy in gastric cancer. Irinotecan as 2nd-line chemotherapy significantly prolongs overall survival compared to BSC. 2nd-line chemotherapy can now be considered as a proven option in gastric cancer. [Table: see text].