Phase II trial of biweekly cetuximab and irinotecan as third-line therapy for pretreated KRAS exon 2 wild-type colorectal cancer.

Phase II trial of biweekly cetuximab and irinotecan as third-line therapy for pretreated KRAS exon 2 wild-type colorectal cancer.
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DOI:
10.1111/cas.13698
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发表时间:
2018-08
期刊:
影响因子:
5.7
通讯作者:
Yamaguchi K
Yamaguchi K
中科院分区:
医学2区
文献类型:
--
作者:
Osumi H;Shinozaki E;Mashima T;Wakatsuki T;Suenaga M;Ichimura T;Ogura M;Ota Y;Nakayama I;Takahari D;Chin K;Miki Y;Yamaguchi K

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对每两周一次的西妥昔单抗联合伊立替康的疗效和安全性进行了评估,以指导其在日本作为携带野生型 KRAS 外显子 2 的已治疗转移性结直肠癌 (mCRC) 患者的三线治疗。根据预期比例 0.23,使用客观缓解率 (ORR) 作为主要终点,置信宽度为 0.298(95% CI,0.105‐0.403),结果显示35 为最低参与人数。纳入了 40 名对含有伊立替康、奥沙利铂和氟嘧啶的一线和二线化疗耐药的患者。 ORR 和疾病控制率分别为 25.0%(95% CI:11.5-38.4)和 72.5%(95% CI:56.8-86.4)。中位无进展生存期 (PFS)、总生存期 (OS) 和疗程数分别为 5.70 个月(95% CI:2.7‐7.9)、15.1 个月(95% CI:11.8‐19.0)和 10.5 个月(范围:3.0‐31.0)。 3级不良事件为皮肤毒性(12.5%)、腹泻(10.0%)、中性粒细胞减少症(5.0%)、发热性中性粒细胞减少症(5.0%)、恶心(5.0%)、厌食(5.0%)和疲劳(2.5%)。首次给药后 C max 平均值为 723.2 μg/mL。高曲线下面积 (AUC) 最后方差与 131.2‐1209.6 小时(中位数 174.4 小时)的 t1/2 范围相关。早期肿瘤缩小 (ETS) 和中位反应深度分别为 25.0% 和 13.0%。 KRAS外显子3或4、NRAS、BRAF和PIK3CA的突变频率分别为5.5%、2.7%、8.3%和5.5%。多变量 Cox 回归分析评估了任何基因突变和 ETS 是否是 PFS 的预测因子,以及性能状态、同步转移和 ETS 是否是 OS 的预测因子。重要的是,这些数据为转移性结直肠癌患者每两周一次西妥昔单抗加伊立替康治疗方案提供了指导。
Efficacy and safety of biweekly cetuximab plus irinotecan were evaluated to provide guidance for its use in Japan as third‐line treatment for pretreated metastatic colorectal cancer (mCRC) patients harboring wild‐type KRAS exon 2. Objective response rate (ORR) was used as primary endpoint based on an expected proportion of 0.23 with confidence width of 0.298 (95% CI, 0.105‐0.403), which showed 35 to be the minimal participant number. Forty patients, refractory to first‐ and second‐line chemotherapy containing irinotecan, oxaliplatin, and fluoropyrimidine, were enrolled. ORR and disease control rate were 25.0% (95% CI: 11.5‐38.4) and 72.5% (95% CI: 56.8‐86.4), respectively. Median progression‐free survival (PFS), overall survival (OS), and number of courses were 5.70 months (95% CI: 2.7‐7.9), 15.1 months (95% CI: 11.8‐19.0), and 10.5 (range: 3.0‐31.0), respectively. Grade 3 adverse events were skin toxicity (12.5%), diarrhea (10.0%), neutropenia (5.0%), febrile neutropenia (5.0%), nausea (5.0%), anorexia (5.0%), and fatigue (2.5%). C max mean was 723.2 μg/mL after first dose. High area under the curve (AUC)last variance was associated with t1/2 range of 131.2‐1209.6 hours (median, 174.4 hours). Early tumor shrinkage (ETS) and median depth of response were 25.0% and 13.0%, respectively. Mutation frequencies in KRAS exon 3 or 4, NRAS,BRAF, and PIK3CA were 5.5%, 2.7%, 8.3%, and 5.5%, respectively. Multivariate Cox regression analysis assessed whether any gene mutations and ETS are predictors for PFS, and whether performance status, synchronous metastasis, and ETS are predictors for OS. Importantly, the data provide guidance for a biweekly cetuximab plus irinotecan regimen in mCRC patients.
DOI: 10.1016/j.ejca.2015.04.007
发表时间: 2015-07
期刊: European journal of cancer (Oxford, England : 1990)
影响因子: --
作者:
Bokemeyer C;Köhne CH;Ciardiello F;Lenz HJ;Heinemann V;Klinkhardt U;Beier F;Duecker K;van Krieken JH;Tejpar S
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DOI: 10.1056/nejmoa071834
发表时间: 2007-11-15
影响因子: 158.5
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发表时间: 2009-08-01
期刊: ANNALS OF ONCOLOGY
影响因子: 50.5
作者:
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DOI: 10.1093/annonc/mdp549
发表时间: 2010-07-01
期刊: ANNALS OF ONCOLOGY
影响因子: 50.5
作者:
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