中国实用外科杂志 ›› 2012, Vol. 32 ›› Issue (09): 720-723.

• 专家论坛 • 上一篇    下一篇

分子靶向药物在转移性结直肠癌综合治疗中的合理应用与研究方向

沈    琳,李    健   

  1. 北京大学肿瘤医院暨北京市肿瘤防治研究所消化肿瘤内科,北京100142
  • 出版日期:2012-09-01 发布日期:2012-08-29

  • Online:2012-09-01 Published:2012-08-29

摘要:

根据病人状况和治疗目标设定治疗策略是目前结直肠癌重要治疗原则。对于潜在可切除的转移性结直肠癌,更高的肿瘤缓解率将不可切除病灶转化为可切除病灶的概率进一步提高,达到延长总生存期甚至治愈的目的,因此选择客观缓解率高的联合方案更适合;对于不可切除但肿瘤进展迅速同时合并明显临床症状的病人,缩小肿瘤、延长肿瘤控制时间、改善生活质量应作为主要治疗目标,因此具备近期疗效高的联合方案适于该类病人;对于肿瘤进展缓慢的不可切除的转移性结直肠癌,选择毒性反应相对较小的方案延缓肿瘤增长应作为合理的策略,单药对该类病人也具有一定价值。临床研究证实分子靶向药物联合化疗进一步提高了转移性结直肠癌的客观疗效以及生存期,但在转移性结直肠癌综合治疗中如何根据病人状况及肿瘤特点,通过多学科协作分析,筛选出分子靶向药物敏感的疗效预测因子、探讨分子靶向药物与细胞毒药物之间的相互作用、探寻其耐药机制,合理应用分子靶向药物,优化最佳治疗方案,并选择恰当的时机、是实现治疗目标、改变病人疾病转归的重要保证。

关键词: 转移性结直肠癌, 分子靶向治疗

Abstract:

The rationally apply and research directions of targeted agents in comprehensive treatment of metastatic colorectal cancer        SHEN Lin, LI Jian. Department of GI Oncology ,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education of China), Peking University Cancer Hospital & Institute ,BeiJing100142,China
Corresponding author:SHEN Lin,E-mail: Lin100@medmail.com.cn
Abstract    To identify the optimal strategy according to the  patients’ conditions and therapy goals is the important principle of treatment on colorectal cancer. For the patients with potentially resectable liver or lung metastases, the strategy is to try to achieve high response rates in order to convert unresectable metastases to resectable metastases. So the combination of targeted agents and cytotoxic drugs with high response rates should be recommended. The strategy when treating patients with unresectable disease in rapid progress and tumor related symptoms is to improve symptoms and prolong progression-free survival. For those patients with no option resection for metastases and no risk for tumor rapid deterioration or with comorbidity, the treatment goal is to control further tumor progression and prevent from drugs related toxicities and in this situationsingle agent maybe has certain value. The results of clinical trials showed chemotherapy with targeted agents have further improved response rate, progression-free survival and overall survival of the patients with metastatic colorectal cancer (mCRC). How to screen more sensitive predictive biologic markers, improve our understanding of molecular mechanism involved in the interaction between target agents and cytotoxic drugs, explore the resistance mechanism, rationally use targeted agents, select optimal treatment scheme based on the situation of patients, characteristics of tumor and a multidisciplinary team is the important guarantee to realize treatment goals and change the prognosis of disease in the treatment of metastatic colorectal cancer.

Key words: metastatic colorectal cancer, targeted therapy