A Phase I Clinical Trial on Decitabine (5-aza-2'-Deoxycytidine) Administered by Hepatic Arterial Infusion in Patients With Unresectable Liver-predominant Metastases From Colorectal Cancer
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 11
- 试验地点
- 1
- 主要终点
- toxicity of escalating doses of decitabine administered by HAI
研究概览
简要总结
Despite the advances in the medical treatment of unresectable liver metastases from colorectal cancer there is currently no curative treatment option available for these patients. Decitabine is a cytidine analog with proven anti-neoplastic activity in patients with acute myeloid leukemia and myelodysplastic syndromes. Decitabine causes demethylation of the DNA strands of replicating cells. Hereby decitabine treatment demethylates the promoter regions of tumor suppressor- and cancer testis antigen encoding genes leading to expression of these genes by the cancer cells. The hepatic arterial route for administration of cytotoxic drugs has been widely explored in treatment of colorectal cancer liver metastases because these metastases depend for their blood flow from this artery (as opposed to the normal liver tissue that is mainly dependent from the portal vein). By investigating the administration of decitabine by hepatic arterial infusion the investigators intend to explore the potential advantage of minimizing the systemic exposure (and toxicity) and maximizing the concentration of decitabine within the liver metastasis. The primary objective of this phase I will be to establish the recommended dose for decitabine by HAI for further use in phase II trials. The most important secondary objective will be to document the effect of decitabine by HAI on the expression of cancer testis antigens by the colorectal cancer cells, serving as a reference for potential further exploration of decitabine by HAI in combination with cancer immunotherapy
详细描述
This clinical trial will recruit eligible patients diagnosed with unresectable liver-predominant colorectal cancer metastases who have experience progression of their disease following standard of care treatment.
Unless patients already dispose of a hepatic arterial catheter, they will undergo placement of a permanent hepatic artery catheter (by laparoscopic surgery). During this surgical procedure a biopsy will be made of the colorectal cancer liver metastasis.
Decitabine will be administered as a daily 1-hour IV infusion on 5 consecutive days, every 4weeks.
Two weeks after the first day of administration of decitabine, a CT-guided biopsy a liver metastasis will be performed in order to obtain tumor tissue for histopathological analysis and DNA/RNA extraction for the purposes of methylation specific Polymerase Chain Reaction (PCR) and reverse transcriptase PCR for assessment of demethylation and expression of cancer-testis antigen encoding genes.
Blood samples for collection of "cell-free DNA" and White Blood Cell (WBC ) for the purpose of DNA/RNA extraction and analysis by methylation specific PCR and reverse transcriptase PCR for assessment of demethylation and expression of cancer-testis antigen encoding genes will be obtained weekly after decitabine treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Histological documentation of colorectal adenocarcinoma CRC stage IV with predominant unresectable liver metastases and at least one measurable metastatic liver lesion
- •Performance status WHO criteria of <
- •Laboratory values: absolute neutrophil count (ANC) count > 1500 /mm³, Platelet count > 100 000 /mm³, Lymphocytes > 800 /mm³, Serum creatinine < 2.0 mg/dl or creatinine clearance >40 ml/min, Serum bilirubin < 2.0 mg/dl
- •Progressive disease following standard of care palliative systemic chemotherapy
- •able to give written informed consent.
排除标准
- •No prior radiotherapy to all target liver lesions
- •No previous history of gastric or hepatobiliary surgery (except for simple cholecystectomy, No concurrent liver disease or other serious medical disease or condition
- •No concomitant use of other investigational drugs.
- •No pre-existing neuropathy with a severity of > grade 1 in the WHO toxicity scale.
- •No previous or concurrent malignancies except for adequately treated in situ carcinoma of the cervix uteri, basal or squamous cell carcinoma of the skin or any other malignancy given potentially curative treatment more than 5 years before study entry
- •No pregnant or breast-feeding female patients, use of an effective contraceptive if the risk of conception exists during study treatment.
- •No candidate for the resection of all CRC metastases with curative intent.
研究组 & 干预措施
decitabine
administration of decitabine by hepatic arterial infusion
- Accrual of patients and dosing of decitabine will be guided by a traditional 3+3 design using an accelerated titration for the first three dose levels.
- Proposed dose levels:
- 10 mg/m2 per course
- 15 mg/m2 per course
- 20 mg/m2 per course
干预措施: Decitabine (Drug)
结局指标
主要结局
toxicity of escalating doses of decitabine administered by HAI
时间窗: 2years
: to establish the recommended dose of decitabine administered by hepatic arterial infusion in patients with unresectable liver-predominant metastases from colorectal cancer
次要结局
- progression free survival(5 years)
- best objective tumor response(5 years)
- measuring Global DNA methylation of tumoral DNA(2years)
- overall survival(5years)
- measuring Global DNA methylation of cell free DNA(2years)