ecrin-mdr-crcClinical2018Cancer-Bowel-Back passage (rectum) or large bowel (colon)Colorectal cancer with high risk features for peritoneal metastasesSurgery-Other surgeryColorectal Cancer With High Risk Features For Peritoneal MetastasesSurgery-other SurgeryCancer-bowel-back Passage (rectum) Or Large Bowel (colon)Interventionalhttps://newmdr.ecrin.org/Study/2466778Australia5ECRIN MDRNot yet recruitingfalseRelook Laparoscopy for Peritoneal Surface Disease (ReLaPSeD) TrialA prospective randomised controlled trial comparing relook laparoscopy vs. standard follow-up for early detection and treatment of patients at high risk for peritoneal metastases after resection of colorectal cancerInterventions: Diagnostic laparoscopy refers to examination of the abdominal cavity through minimally-invasive (key-hole) surgery. It takes approximately 45 - 60 minutes and will be performed by a specialist colorectal surgeon. Patients randomised to the intervention group will undergo relook diagnostic laparoscopy at 9- 12 months post surgery (in addition to standard follow up tests, including clinical review, tumour markers and regular CT scans). Primary outcome(s): To report and compare the 3-year overall survival in patients managed with relook laparoscopy vs. standard follow-up following curative resection for high risk colorectal cancer[3 years post-randomisation] Study Design: Purpose: Treatment; Allocation: Randomised controlled trial; Masking: Open (masking not used);Assignment: Parallel;Type of endpoint: Safety/efficacy2018-05-152466778ACTRN12618000372280