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您所在的位置:首頁 > 腫瘤科醫(yī)學(xué)進(jìn)展 > [ASCO2015]CONKO-005:吉西他濱+厄洛替尼治療R0切除胰腺癌

[ASCO2015]CONKO-005:吉西他濱+厄洛替尼治療R0切除胰腺癌

2015-05-26 17:23 閱讀:2214 來源:醫(yī)脈通 作者:林* 責(zé)任編輯:林夕
[導(dǎo)讀] 2015年ASCO年會將于5月29日--6月2日在美國芝加哥召開,5月31日上午的消化系統(tǒng)(非結(jié)直腸)腫瘤口頭報告專場,將公布前瞻性隨機III期研究——CONKO-005試驗的結(jié)果。

    2015年ASCO年會將于5月29日--6月2日在美國芝加哥召開,5月31日上午的消化系統(tǒng)(非結(jié)直腸)腫瘤口頭報告專場,將公布前瞻性隨機III期研究——CONKO-005試驗的結(jié)果。吉西他濱(Gem)輔助化療6個月會顯著改善胰腺癌患者生存期。CONKO-005研究旨在評估EGFR-酪氨酸激酶-抑制劑厄洛替尼(Erlo 100mg 每日p.o.)聯(lián)合Gem(1000mg/m2 i.v. 第1,8,15,q29)治療R0切除后患者24周的附加效應(yīng)。

    研究方法:

    在一項開放標(biāo)簽多中心設(shè)計中,患者在手術(shù)后8周內(nèi),隨機分配接受GemElro或者Gem;通過淋巴結(jié)受累,手術(shù)技術(shù),研究中心進(jìn)行分層。主要終點是無疾病生存期(DFS)。該研究計劃在0.05顯著水平應(yīng)用80%P值以檢測DFS從14到18個月的改善情況。次要目標(biāo)是中位總生存期(OS)和治療安全性。研究分析應(yīng)用Kaplan-Meier法展開;治療組生存數(shù)據(jù)的比較應(yīng)用log-rank檢測。

    研究結(jié)果:

    在2008年4月——2013年7月之間,219例患者隨機接受GemErlo治療,217例患者接受Gem治療?;颊咛卣鞅3制胶猓℅emErlo/Gem):年齡(中位數(shù)63/65歲),腫瘤狀態(tài)(T3/T4 88/86%),淋巴結(jié)狀態(tài)(N pos 64/66%),分級(G3 33/34%)。

    中位隨訪41個月后(2015年3月),350例(80%)事件發(fā)生。在這兩組中中位治療時間是22周。3/4級毒性是(GemErlo/Gem):皮疹7/0.4,腹瀉5/1,惡心2/2,疲勞5/2,高血壓3/1,GGT9/9,中性粒細(xì)胞減少27/28,血小板減少5/2.

    兩組的DFS(中位:GemErlo 11.6個月,Gem 11.6個月;HR 0.89,95% CI 0.72——1.10)或0S(中位:GemErlo 24.6個月,Gem 26.5個月;HR 0.90,95% CI 0.71——1.15)沒有差異。

    在GemErlo組中皮疹級別和改善的DFS之間沒有聯(lián)系(中位:皮疹級別0-1 vs ≥2 12.2 vs 11.0個月;HR 0.91,95% CI 0.66-1.25)。OS曲線顯示一個后期散度支持GemErlo(2/3/4/5-年后評估的存活率:54/36/31/28% vs 53/33/22/19%)。

    結(jié)論:

    GemErlo聯(lián)合治療24周未能改善DFS或OS.在經(jīng)GemErlo治療的患者中有長期生存的趨勢。臨床試驗信息:DRKS00000247.

    閱讀英文摘要

    CONKO-005: Adjuvant therapy in R0 resected pancreatic cancer patients with gemcitabine plus erlotinib versus gemcitabine for 24 weeks—A prospective randomized phase III study.(Abstract NO:4007)Authors:Marianne Sinn, Torsten Liersch,et al.

    Session Type:Oral Abstract Session

    Background:Adjuvant chemotherapy with gemcitabine (Gem) for 6 months significantly improves survival of pancreatic cancer patients. CONKO-005 was designed to evaluate an additional effect of the EGFR-tyrosinkinase-inhibitor erlotinib (Erlo 100 mg p.o. daily) in combination with Gem (1000 mg/m2 i.v. day 1,8,15, q29) for 24 weeks in pts after R0 resection.

    Methods:In an open-label multicenter design, pts were randomised within 8 weeks after operation to receive GemErlo or Gem; stratified by lymph node involvement, operation techniques, study centre. The primary endpoint was disease-free survival (DFS)。 The study was planned with a power of 80% at a significance level of 0.05 to detect an improvement of DFS from 14 to 18 months. Secondary objectives were median overall survival (OS) and treatment safety. Kaplan-Meier **yses were performed; survival data for the treatment arms compared using log-rank test.

    RESULTS:Between April 2008 and July 2013, 219 pts were randomized to GemErlo and 217 to Gem. Pts characteristics are well balanced (GemErlo/Gem): age (median 63/65 years), tumor status (T3/T4 88/86%), nodal status (N pos 64/66%), grading (G3 33/34%)。 After a median follow up of 41 months (March 2015), 350 events (80%) occurred. Median treatment duration was 22 weeks in both groups. Grade 3/4 toxicities were (GemErlo%/Gem%): rash 7/0.4, diarrhea 5/1, nausea 2/2, fatigue 5/2, hypertension 3/1,GGT 9/9, neutropenia 27/28, thrombopenia 5/2. There was no difference in DFS (median: GemErlo 11.6 months, Gem 11.6 months; HR 0.89, 95%CI 0.72-1.10) or OS (median: GemErlo 24.6 months, Gem 26.5 months; HR 0.90, 95%CI 0.71-1.15)。 There was no correlation between the grade of rash and an improved DFS in the GemErlo group (median: rash grade 0-1 vs > = grade 2 12.2 vs 11.0 months; HR 0.91, 95%CI 0.66-1.25)。 OS curves show a late divergence in favour of GemErlo (estimated survival after 2/3/4/5-years: 54/36/31/28% vs 53/33/22/19%)。

    Conclusion:The combination therapy of GemErlo for 24 weeks did not improve DFS or OS. There is a trend in favour of long-term survival in pts treated with GemErlo. Clinical trial ***rmation: DRKS00000247.


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