Esophageal Squamous Cell Carcinoma Clinical Trial
Official title:
A Randomized Phase II Trial Estimating The Optimal Radiation Volume Of Postsurgical Radiation For Patients With Locoregionally Advanced Thoracic Esophageal Squamous Cell Carcinoma
A randomized phase II trial to estimate the optimal radiation volume of postsurgical radiation for patients with locoregionally advanced thoracic esophageal squamous cell carcinoma (T3-4, any N, M0).
Patient Population:
Thoracic esophageal squamous cell carcinoma after esophagectomy with at least 15 lymph nodes
removed for adequate nodal staging.
T3-4, any N, M0.
Scheme:
After esophagectomy, patients are firstly stratified by 2 factors: (1)number of lymph node
metastasis (<3 or >=3) and (2)tumor resection status (R1 resection or R2 resection).
Note: Pathological R0 resection status is required for this study. So here R1 and R2
resection are not actually pathological status of resection, only clinical judgement by
physician based on the chest-CT before esophagectomy.
Then patients are randomized to 2 arms:
Arm A:
Large field radiation (tumor bed + ENI (elective nodal irradiation)) + Sequential
chemotherapy (4 cycles).
Arm B:
Small field radiation (tumor bed only) + Sequential chemotherapy (4 cycles).
;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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