Overview Laparoscopic Surgery VS Laparoscopic Surgery + Neoadjuvant Chemotherapy for T4 Tumor of the Colon Cancer Status: Unknown status Trial end date: 2021-10-01 Target enrollment: Participant gender: Summary Primary Outcome Measures: Disease free survival Secondary Outcome Measures: Overall survival Adverse events (Mortality, morbidity) The proportion of completion of Laparoscopic Surgery Estimated Enrollment: Oct, 2016 Study Start Date: Oct, 2016 Estimated Study Completion Date: Oct, 2019 Estimated Primary Completion Date: Oct, 2021 Groups/Cohorts 1. Laparoscopic surgery for T4 colon cancers 2. Neoadjuvantive chemotherapy + Laparoscopic surgery for T4 colon cancers Phase: Phase 2/Phase 3 Details Lead Sponsor: Fudan UniversityCollaborators: Shanghai Jiao Tong University School of MedicineTongji UniversityZhejiang University