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Brief Title: Simple Transanal Local Excision,Transanal Local Excision Following Radiotherapy Versus Total Mesorectum Excision for the Treatment of the Ultra-low T2N0M0 Rectal Cancer
Official Title: A Randomized Controlled Clinical Trial to Investigate the Effects of Transanal Local Excision Following Radiotherapy for the Treatment of Ultra-low T2N0M0 Rectal Cancer
Study ID: NCT04098471
Brief Summary: A randomized controlled clinical trial to compare the short and long term outcomes of simple transanal local excision,transanal local excision following radiotherapy or total mesorectal excision for the treatment of Rectal Cancer
Detailed Description: Rectal cancer is one of the most common malignancy worldwide. Currently, surgery is the main treatment for stage I rectal cancer, which has good therapeutic effect. For ultra-low rectal cancer, transanal local excision (TLE) has many advantages over total mesorectal excision (TME), such as less trauma, shorter hospitalization time, lower incidence of complications, protection of sexual function and protection of anal function. At present, transanal local excision has become the recommended operation for the T1N0M0 rectal cancer. However, the risk of lymph node metastasis still occurs in stage I tumors, especially in stage T2 tumors, the lymph node metastasis rate can reach 12% - 29% according to the literature. Salvage TME or chemoradiotherapy should be considered for the presence of positive margin of incision, lymphatic/vascular invasion and poor histological differentiation after transanal local excision. At present, the investigators have consulted a large number of literatures and found that TEM is still lack of sufficient evidence in the treatment of T2N0M0 ultra-low rectal cancer. Some studies believed that local excision combined with adjuvant therapy is safe and reliable, but the evidence is not enough. For ultra-low T2N0M0 rectal cancer, more studies need to be carried out to provide guidance for clinical treatment. In this study, eligible patients will be randomly allocated to operative operation for rectal cancer either by simple TLE,TLE following radiotherapy or TME. 5-years disease free survival rate, 5-years overall survival rate,local recurrence rate and postoperative quality of life will be recorded. Patients will be followed up every 3 months for 2 year, every 6 months for 3 years postoperatively to study the long term effects.
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
Name: Yueming Sun, PhD
Affiliation: The First Affiliated Hospital with Nanjing Medical University
Role: STUDY_DIRECTOR