Identification of Predictive Biomarker of Regorafenib in Refractory Colorectal Cancer: A Prospective Explorative Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 117
- 试验地点
- 1
- 主要终点
- Predictive biomarker in terms of disease control rate
研究概览
简要总结
Regorafenib is a valuable treatment option for metastatic colorectal cancer patients who have progressed after prior standard treatments. Prior progression-free survival data suggest that there could be a distinct subgroup of patients that may benefit from regorafenib. The aim of this study is to identify predictive biomarker of regorafenib in terms of its efficacy.
详细描述
Regorafenib is a multi-tyrosine kinase inhibitor which has been shown to increase survival in metastatic colorectal cancer patients who have progressed after prior standard treatments. Progression-free survival data suggest that there could be a distinct subgroup of patients that may benefit from regorafenib. Therefore, it would be important to identify predictive biomarker of efficacy of regorafenib. Considering that regorafenib is a multi-tyrosine kinase inhibitor, comprehensive approach is required to discover predictive biomarker.
NGS-based sequencing allows generating large amount of data regarding multiple genes and multiple genetic alterations within a single experiment. Also, it requires less amount of DNA or tissue and cost compared to currently used individual gene testing techniques such as direct sequencing or FISH. Moreover, superior sensitivity over Sanger sequencing can be obtained by increasing coverage depth, especially in cases with low tumor purity. Wide range of genes targeted by regorafenib and genes in the major oncogenic pathway of colorectal cancer influenced by regorafenib can be efficiently assessed using NGS-based sequencing.
The aim of this study is to identify predictive biomarker of efficacy of regorafeinib in metastatic, refractory colorectal cancer patients using NGS technology.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Signed informed consent obtained before any study-specific procedures.
- •Pathologically confirmed metastatic adenocarcinoma of colon or rectum
- •Failure of standard therapies, which must include fluoropyrimidine, oxaliplatin, and irinotecan. Failure is defined as progression during or within 3 months following the last administration of therapy. Patients who have withdrawn from standard treatment due to unacceptable toxicity warranting discontinuation of treatment and precluding retreatment with the same agent before progression of disease will also be allowed into the study. Patients treated with oxaliplatin in an adjuvant setting who have progressed during or within 6 months of completion of adjuvant therapy are regarded as failure of oxaliplatin. Patients may or may not have received bevacizumab or cetuximab.
- •Measurable or nonmeasurable disease according to RECIST criteria, version 1.
- •Adequate tissue for gene sequencing (surgical FFPE specimen or fresh-frozen biopsy specimen)
- •ECOG PS 0 or 1
- •Life expectancy of at least 3 months
- •Adequate bone-marrow, liver, and renal function as assessed by the following laboratory requirements conducted within 14 days of starting to study treatment
- •Total bilirubin ≤1.5 × ULN
- •Alanine aminotransferase and aspartate aminotransferase ≤2 × ULN (≤5 × ULN for patients with liver involvement of cancer)
- •Amylase and lipase ≤1.5 × ULN
- •Serum creatinine ≤1.5 × ULN
- •Glomerular filtration rate ≥30 ml/min/1.73 m2 according to the Modified Diet in Renal Disease abbreviated formula
- •International normalised ratio (INR) and partial thromboplastin time (PTT) ≤1.5 × ULN. Subjects who are therapeutically treated with an agent such as warfarin or heparin will be allowed to participate provided that no prior evidence of an underlying abnormality in coagulation parameters exists.
- •Platelet count ≥100,000/mm3, haemoglobin >9 g/dl, absolute neutrophil count >1,500/mm3
- •Alkaline phosphatase limit ≤2.5 × ULN (≤5 × ULN for patients with liver involvement of their cancer)
排除标准
- •Prior treatment with regorafenib
- •Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication
- •Pregnancy or breast-feeding. Women of childbearing potential must have a negative pregnancy test performed a maximum of 7 days before start of treatment
- •Congestive heart failure of NYHA class 2 or worse
- •Unstable angina, new-onset angina (begun within the last 3 months). Myocardial infarction less than 6 months before start of study drug
- •Cardiac arrhythmias requiring anti-arrhythmic therapy (beta blockers or digoxin are permitted)
- •Uncontrolled hypertension (systolic blood pressure >150 mmHg or diastolic >90 mmHg despite optimal medical management)
- •Arterial or venous thrombotic or embolic events within the 6 months before start of study medication
- •Ongoing infection higher than NCI-CTCAE v4.0 grade 2
- •Known history of HIV infection
- •Active hepatitis B or C virus infection
- •Seizure disorder requiring medication
- •Symptomatic metastatic brain or meningeal tumors
- •History of organ allograft
- •Non-healing wound, ulcer, or bone fracture
- •Interstitial lung disease with ongoing signs and symptoms at the time of informed consent
- •Persistent proteinuria of NCI-CTCAE v4.0 grade 3 or higher
- •Inability to swallow oral medications
- •Any malabsorption condition
- •Unresolved toxicity higher than NCI-CTCAE v4.0 grade 1 attributed to any prior therapy/procedure, excluding alopecia and oxaliplatin-induced neurotoxicity of grade 2 or less
研究组 & 干预措施
Regorafenib
This study is a single arm study with biomarker analysis
干预措施: Regorafenib (Drug)
结局指标
主要结局
Predictive biomarker in terms of disease control rate
时间窗: 1 year
This study aims at identifying potential molecular subgroup of colorectal cancer that may benefit from regorafenib treatment in terms of disease control rate.
次要结局
- Overall survival according to biomarker status(1 year)
- Overall survival(1 year)
- Disease control rate(1 year)
- number of participants with adverse events(1 year)
- Progression-free survival(1 year)
- Progression-free survival according to biomarker status(1 year)
- Assessment of adequate response evaluation modality after regorafenib treatment(1 year)
研究者
Tae-You Kim
M.D., Ph.D
Seoul National University Hospital