COlon Cancer Laparoscopic or Open Resection

Study Overview
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Brief Summary
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COLOR trial is a randomized, international, multi center study comparing the outcomes of laparoscopic and conventional resection of colon carcinoma with curative intent. Clinical and operative data will be collected centrally in the coordinating centre in Rotterdam, The Netherlands. Quality of life and costs will be assessed on a national basis.

Detailed Description
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The design involves allocation of all suitable consecutive patients with colon carcinoma to either of the two procedures at a randomization ratio of 1:1. The trial will be stratified according to participating centre, resection type and gender. Disease free survival for all TNM stages after 3 years is currently about 70%. To detect a difference of 7% in disease free survival rate after 3 years between open and laparoscopic resection of colon cancer, 1200 patients will have to be included (60 vs 67%, two-sided analysis; alfa=0.05, beta=0.20, power=80% and p=0.05). All analyses will be performed on an intention to treat basis.

Official Title
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A Randomized Clinical Trial Comparing Laparoscopic and Open Surgery for Colon Cancer

Conditions
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Colonic Neoplasms

Intervention / Treatment
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* Procedure: Laparoscopic surgery
* Procedure: Conventional surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Solitary colon carcinoma observed at colonoscopy or on barium enema X-ray within 28-days before operation (no biopsy required) Polyp containing invasive carcinoma according to colonoscopic biopsy, undertaken within 28 days before operation Suitable for elective surgical resection by right hemicolectomy, left hemicolectomy or sigmoid resection Sigmoid colon tumour cranially to conjugata diagonalis on lateral view of barium enema BMI < 30 kg/m2 Informed consent according to local requirements Exclusion Criteria: Carcinoma of the splenic flexure Carcinoma of the transverse colon Signs of acute intestinal obstruction More than one colon tumour Scheduled need for other synchronous colon surgery Synchronous surgery ofr other intra-abdominal organs Pre-operative indication of invasion of adjacent organs Pre-operative evidence of distant metastases Previous ipsilateral colon surgery Other malignancies in medical history, except adequately treated basocellular carcinoma of the skin or in situ carcinoma of the cervix uteri Absolute contra-indications to general anaesthesia or prolonged pneumoperitoneum, such as severe cardiovascular or respiratory disease Pregnancy

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Intervention/Treatment |
| --- |
|Procedure: Laparoscopic surgery|nan|
|Procedure: Conventional surgery|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Primary endpoint is cancer free survival at three years. |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Secondary endpoints are overall survival at three and five years, 28 day mortality and morbidity, quality of life, costs, location and rates of recurrences and pathologic anatomic characteristics of the resected specimen. |  |  |