COLOR.

Trial name or title	conventional or laparoscopic resection of colonic cancer (COLOR)
Methods
Participants	1100 patients
Interventions	laparoscopic vs. conventional resection of colonic cancer
Outcomes	Main study criterion: cancer free survival and recurrence rate. Other parameter: morbidity and mortality, Quality of Life in subgroup
Starting date	1997
Contact information	Hazebroek EJ. University Hospital Rotterdam‐Dijkzigt, Department of Surgery, Rotterdam, The Netherlands
Notes	Patient recruitment terminated after 1100 patients in 2004, follow‐up period ungoing