Resection of liver metastasis is potentially curative in patients with colorectal cancer bearing liver metastasis. However, early recurrence occurs in up to 30% in 3 months after liver resection. To optimize patient selection, the investigators propose to evaluate the the value of incorporating circulating tumor cells enumeration to clinical factors in a prospective study
This is a single-center prospective study to evaluate the predictive value of circulating tumor cells (CTC) in patients with metastatic colorectal cancer who are planned to have curative resection of liver metastasis. Blood will be taken from patients within 7 days before liver resection. CTC enumeration is done by a highly-sensitive microfluidic platform for which CTC can be subsequently enumerated with or without sequencing performed. Patients are then followed up regularly with contrast CT scan for recurrence. The primary study endpoint is to define the cutoff value of CTC count in patients with early relapse \< 6months after liver resection. Seventy-seven patients will be recruited in 24 months.
Study Type
OBSERVATIONAL
Enrollment
77
Circulating tumor cell enumeration and sequencing
The University of Hong Kong
Hong Kong, Hong Kong
RECRUITINGCutoff value of CTC counts
to identify patients with early relapse (\<6 months) after liver resection as determined by the AUC under the ROC curve
Time frame: Progression free survival at 6 months
A immuno-clinical scoring system
A system combining CTC count with clinical factors to stratify patients before liver resection
Time frame: Progression free survival at 6 months
Progression free survival
Time from liver resection to date of relapse or date of death, whichever is earlier
Time frame: up to 5 years
Overall survival
Time from liver resection to date of death
Time frame: up to 5 years
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