TACE Combined With Iodine-125 Seeds Implantation Versus TACE Alone for Hepatocellular Carcinoma With Portal Vein Tumor Thrombus: A Prospective, Multicenter, Randomized, Controlled Study
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 270
- 试验地点
- 1
- 主要终点
- Overall survival (OS)
研究概览
简要总结
Portal vein tumour thrombus (PVTT) is a common complication of hepatocellular carcinoma (HCC). PVTT has a profound adverse effect on prognosis, with a very short median survival time (2-4 months). The presence of PVTT also limits treatment options, such as liver transplantation and curative resection. Although the Barcelona Clinic Liver Cancer group recommended sorafenib as a standard therapy for advanced-stage HCC, the optimal treatment for HCC with PVTT remains largely controversial.
Some studies have reported a survival benefit in patients with PVTT who underwent transarterial chemoembolization (TACE), even in patients with main portal vein (MPV) tumor thrombus. Iodine-125 brachytherapy had also showed promising efficacy as a new method for unresectable HCC with PVTT. Results of our previous study indicated that TACE combined with Iodine-125 seeds implantation might be a good choice for selected patients with PVTT. Thus, we conduct this study to farther evaluate the effect of TACE combined with Iodine-125 seeds implantation for HCC with PVTT.
270 patients with HCC and PVTT will be included and randomized to two group: group 1, patients received TACE combined with Iodine-125 seeds implantation; group 2, patients received TACE alone. TACE and Iodine-125 seeds implantation will be performed with a standardized procedure. Iodine-125 seeds implantation into PVTT (guided by CT) will be conducted 7 days after TACE.
All patients revisit our institutions for follow-up examinations including contrast enhanced CT/MRI and laboratory tests every 4-6 weeks after the first treatment. Patients who have a tumor response rating of complete response will be required to revisit 3 months interval. At each visit, TACE or Iodine-125 seeds implantation is repeated if the following criteria are reached: 1) images indicating viable intrahepatic tumor tissue or PVTT; 2) Child-Pugh class A or B, and no contraindication to TACE and Iodine-125 seeds implantation.
The primary end point of this study is overall survival. The secondary end points are time to tumor progression, disease control rate, duration of portal patency and adverse events. All adverse events are graded in accordance with Common Toxicity Criteria Adverse Events Version (CTCAE) 4.03.
详细描述
Background and purpose:
Hepatocellular carcinoma (HCC) is the 5th most common cancer in the world and the 3rd most prevalent cause of tumor-related deaths. Portal vein tumor thrombus (PVTT) occurs in up to 44% of HCC patients at the time of death and approximately 10-40% of patients at time of diagnosis. PVTT has a profound adverse effect on prognosis, with a very short median survival time (2-4 months). The presence of PVTT also limits treatment options, such as liver transplantation and curative resection. The optimal treatment for patients with HCC and PVTT remains largely controversial.
The Barcelona Clinic Liver Cancer (BCLC) group recommended the tyrosine kinase inhibitor sorafenib as a standard therapy for patients with advanced-stage HCC (BCLC stage C), including HCC patients with PVTT. However, in the Sorafenib Hepatocellular Carcinoma Assessment Randomized Protocol (SHARP) trail, on which the BCLC recommendations were based, patients with vascular invasion represented only 38.4% of the total study population. This result may not directly imply a survival gain with sorafenib treatment in HCC patients with PVTT. Additionally, the median survival time for patients with advanced HCC, including vascular invasion or extrahepatic metastases, treated with sorafenib is short - only 6.5 months in Asia. Thus, more effective treatment strategies have been strongly required to increase survival rate.
Some studies have reported a survival benefit in patients with PVTT who underwent transarterial chemoembolization (TACE), even in patients with main portal vein tumor thrombus. Iodine-125 brachytherapy alone had also showed promising efficacy as a new method for unresectable HCC with PVTT. Results of our previous study indicated that TACE combined with Iodine-125 seeds implantation might be a good choice for selected patients with PVTT. Thus, we conduct this study to farther evaluate the effect of TACE combined with Iodine-125 seeds implantation for HCC with PVTT.
Methods:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •clinical diagnosis of HCC;
- •age between18 and 75 years;
- •type I PVTT, type II PVTT, or type III PVTT within 1.5cm extending in the main portal vein (if obstructive PVTT involve both the left and right portal vein or main portal vein, multiple collateral vessels are required);
- •Child-Pugh class A or B;
- •Eastern Cooperative Group performance status (ECOG) score of 0-2;
- •neutrophilic granulocyte count ≥ 1.5×10^9/L, platelet count ≥ 30×10^9/L, and hemoglobin level ≥ 85g/L;
- •serum bilirubin ≤ 51.3 μmol/L, albumin ≥ 28g/L, ALT and AST ≤ 5 times of the upper normal limit, and creatinine ≤ 20g/L;
- •prothrombin time ≤18s or international normalized ratio < 1.7.
排除标准
- •diffuse HCC;
- •extrahepatic metastasis;
- •obstructive PVTT involving both the left and right portal vein or main portal vein without collateral vessels,
- •type III PVTT affecting the main portal vein more than 1.5cm, or type IV PVTT;
- •previously surgery (resection or liver transplantation), local-regional therapies (e.g., radiofrequency ablation), intra-arterial chemoinfusion, TACE, radiotherapy, systemic chemotherapy, or molecular targeted drug therapy for HCC;
- •serious medical comorbidities.
结局指标
主要结局
Overall survival (OS)
时间窗: 24 months
The time from date of randomization to death due to any cause.
次要结局
- Progression free survival (PFS)(24 months)
- Adverse events(24 months)
- Objective response rate (ORR)(24 months)
- Time to tumor progression (TTP)(24 months)
- Duration of portal patency(24 months)
- Disease control rate (DCR)(24 months)