Anatomical Resection VS. Nonanatomical Resection for Colorectal Liver Metastases With Gene Mutation or Right-sidedness
Colorectal Carcinoma, Liver Metastases
About this trial
This is an interventional treatment trial for Colorectal Carcinoma
Eligibility Criteria
Inclusion Criteria: Age ≥ 18 and ≤ 75 years; Histological proof of colorectal adenocarcinoma; Resectable colorectal liver metastasis without detectable extrahepatic distant metastatic disease (determined by a local MDT); Suitable for anatomical or nonanatomical liver resection (determined by a local MDT); Number of metastasis is 1 to 3; KRAS/NRAS/BRAF mutation or right-sidedness; Performance Status (ECOG) 0~1; Adequate hematological function: Neutrophils≥1.5 x109/l and platelet count≥100 x109/l; Hb ≥9g/dl (within 1 week prior to randomization); Adequate liver and renal function: total bilirubin ≤2.0 mg/dl, serum transaminases ≤ 5x upper limit of normal(ULN), and serum creatinine ≤ 1.5x ULN and creatinine clearance ≥ 30 ml/min; Written informed consent. Exclusion Criteria: Previous systemic treatment for metastatic disease; Previous surgery for metastatic disease; Extrahepatic metastases; Unresectable primary tumor; Major cardiovascular events (myocardial infarction, severe/unstable angina, congestive heart failure, CVA) within 12 months before randomisation; Second primary malignancy within the past 5 years; Acute or subacute intestinal obstruction; Drug or alcohol abuse; No legal capacity or limited legal capacity; Pregnant or lactating women.
Sites / Locations
- Zhongshan hospital
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
anatomical resection group
nonanatomical resection group
Based upon the segmental anatomy of the liver according to Couinaud system, anatomical resection (AR) is defined as the resection of one or more complete hepatic segments in our study, including bisegmentectomy, right hemihepatectomy, left hemihepatectomy, extended right hemihepatectomy, extended left hemihepatectomy, single segmentectomy, caudate lobectomy, or a combination thereof.
nonanatomical resection (NAR), also called as wedge resection, is defined as the resection of the tumor with a margin of normal parenchyma regardless of the hepatic anatomy.