A Novel Patent Platform of Detection of Circulating Tumor Cells to Early Detect Colorectal Cancer Recurrence
Study Details
Study Description
Brief Summary
The best strategy to prevent colorectal cancer (CRC) death lies in early detection and early treatment at the local disease status of tumor. After curative resection of tumor, there are about 510% of stage I, 2030% of stage II and 40~50% of stage III patients suffering metastasis during subsequent follow-up periods. Although carcinoembryonic antigen (CEA) is the most widely used biomarker for postoperative monitoring of recurrence on asymptomatic patients, it is difficult to use CEA as biological marker to identify the population with high recurrent risk in patients with early-stage cancer because lower than half of patients with early-stage cancer do not have CEA elevation. For improving the survival of patients with early-stage CRC, we need effort to search more useful biological markers to predict the risk of tumor recurrence and to select out patients with high recurrent risk to receive preventive adjuvant therapy.
Circulating tumor cells (CTCs) in the blood play an essential role in cancer metastasis. Hence, the detection of CTCs and subsequent analysis can potentially revolutionize the cancer care ranging from screening, diagnosis, monitoring, to drug selection and so on. In the past decade, many methods using magnetic beads (CellSearch), filtration (RareCelletc), or flow cytometry have been developed but all of them have the shortcomings from low sensitivity, low purity, to unable to retrieve cells for downstream molecular analysis and cell culture. Recently, a biomimetic affinity based microfluidic platform has overcome abovementioned technical challenges. Importantly, by using only 2 ml of peripheral blood, Sinica's team has shown that the enumeration of CTCs increases with the CRC disease progression, where the mean CTC counts are 3, 15, 29 and 60 per ml for the stages I, II, III and IV, respectively. The results imply that monitoring CTC enumeration serially may serve as a prediction marker to identify the CRC patients with high probability of recurrence. The aims of this study are toestablishing CTC platform standard operation protocol (SOP) that leads to certification of ISO 13485 and to establish CTC criteria and evaluate its prediction power of early detection of colorectal cancer recurrence.
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Study Design
Outcome Measures
Primary Outcome Measures
- tumor recurrence [1, 3, 6, 9 and 12 months post-surgery and 2 and 3 years after surgery as part of follow-up.]
Eligibility Criteria
Criteria
Inclusion Criteria:
- Clinical diagnosis of colorectal cancer
Exclusion Criteria:
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age younger than 20
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Pregnancy
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Inmates
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | National Taiwan University Hospital | Taipei | Taiwan | 100 |
Sponsors and Collaborators
- National Taiwan University Hospital
Investigators
- Principal Investigator: Yu-Ting Chang, MD.PhD, Visting stuff of national taiwan university hospital
- Study Chair: National Taiwan University NTUH, Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 201309068RINC