Japan Clinical Oncology Group (JCOG) 0212 (ClinicalTrials.gov NCT00190541) was a non‐inferiority phase III trial of patients with clinical stage II–III rectal cancer without lateral pelvic lymph node enlargement. The trial… Click to show full abstract
Japan Clinical Oncology Group (JCOG) 0212 (ClinicalTrials.gov NCT00190541) was a non‐inferiority phase III trial of patients with clinical stage II–III rectal cancer without lateral pelvic lymph node enlargement. The trial compared mesorectal excision (ME) with ME and lateral lymph node dissection (LLND), with a primary endpoint of recurrence‐free survival (RFS). The planned primary analysis at 5 years failed to confirm the non‐inferiority of ME alone compared with ME and LLND. The present study aimed to compare ME alone and ME with LLND using long‐term follow‐up data from JCOG0212.
               
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