Int J Cancer:Pazopanib +FLO (5-FU,奥沙利铂)一线治疗晚期胃癌患者的疗效和安全性:PaFLO研究

2021-11-28 yd2015 MedSci原创

抗血管生成已经有用于晚期胃癌的治疗。Pazopanib是一种口服酪氨酸激酶抑制剂,可选择性抑制VEGFR-1, -2和-3,c-kit和PDGF-R,从而抑制血管生成。近期,德国团队开展了一项开放标签

血管生成已经有用于晚期胃癌的治疗。Pazopanib是一种口服酪氨酸激酶抑制剂,可选择性抑制VEGFR-1 -2-3,c-kitPDGF-R,从而抑制血管生成。近期,德国团队开展了一项开放标签的随机II期临床研究(NCT01503372),比较pazopanib +FLO (5-FU,奥沙利铂) vs FLO一线治疗晚期胃腺癌和胃食管连接处腺癌的疗效和安全性。相关结果发表在International Journal of Cancer杂志上。

201112月至20147月,共纳入87例患者。78例患者进行了安全性和有效性分析,其中51例在A组(PaFLO), 27例在B组(FLO)。PaFLO组中位年龄为65岁,FLO组中位年龄为60岁。在两个治疗组中,大多数患者为男性(n = 37 PaFLO, n = 17 FLO),且ECOG评分为1PaFLO组中94%的患者和FLO组中100%的患者有转移性疾病,在PaFLO组中其余3例患者有局部晚期肿瘤。大多数患者有3个或更多器官受累(71% PaFLO51% FLO)PaFLO组有11例患者曾行食管切除术或胃切除术(食管切除术n = 2[18%],胃切除术n = 9 [82%]) FLO组有6例患者曾行食管切除术或胃切除术(胃切除术n = 6[100%])A组和B组中观察到18%的患者出现局部复发(A9例,B5)

两组化疗剂量减少情况相似(PaFLO37%FLO33%)51例患者中有11(22%)必须减少pazopanib的剂量。11名患者中9名减少一次剂量(600毫克)11名患者中2名减少两次剂量(400)。关于CTC AE三级毒性, PaFLO组中主要AE有中性粒细胞减少(22%,n = 11),恶心(16%,n = 8)ALT水平升高(10%,n = 5)和食欲不振(9%,n = 5)FLO组主要AE为贫血(11%,n = 3),呕吐(7%,n = 2),腹泻(7%,n = 2),以及周围神经病变(7%,n = 2)

                  不良反应

PaFLO组的中位PFS为4.66个月,FLO组为4.47个月(HR 0.96, 95% CI 0.60-1.55, P =0.882)。两组的中位OS分别为10.19个月和7.33个月(HR=1.01,95% CI 0.62-1.65, P = 0.953)。

                 PFS和OS

PaFLO组和FLO组6个月、9个月、12个月PFS率分别为34% vs 30%,27% vs 18%,和4% vs 7%。PaFLO组完全缓解率为2% (n = 1), FLO组完全缓解率为4% (n = 1)。总有效率为25% (n = 13, PaFLO) vs 26% (n = 7, FLO)。PaFLO组和FLO组中分别有24例患者和9例患者疾病稳定。PaFLO组疾病控制率为72% (n = 37),而FLO组疾病控制率为59% (n = 16)。每个治疗组有9例患者病情进展(PaFLO组为18%,FLO组为33%)。

           疗效评估

综上,研究表明,晚期胃癌患者中,在FLO(5-FU+奥沙利铂)方案基础上增加pazopanib治疗并不能明显改善患者预后。

原始出处:

Högner A, Al-Batran SE, Siveke JT, Lorenz M, Bartels P, Breithaupt K, Malfertheiner P, Homann N, Stein A, Gläser D, Tamm I, Hinke A, Vogel A, Thuss-Patience P; PaFLO investigators. Pazopanib with 5-FU and oxaliplatin as first line therapy in advanced gastric cancer: A randomized phase-II study-The PaFLO trial. A study of the Arbeitsgemeinschaft Internistische Onkologie AIO-STO-0510. Int J Cancer. 2021 Nov 6. doi: 10.1002/ijc.33864. Epub ahead of print. PMID: 34741530.

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