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Phase II feasibility study of preoperative concurrent chemoradiotherapy with cisplatin plus 5-fluorouracil and elective lymph node irradiation for clinical stage II/III esophageal squamous cell carcinoma.
International Journal of Clinical Oncology 2018 August 15
BACKGROUND: Preoperative chemoradiotherapy (CRT) is a standard treatment for stage II/III esophageal cancer. Preoperative chemotherapy is also considered a standard treatment for stage II/III esophageal squamous cell carcinoma (ESCC) in patients who undergo radical lymph node dissection. We conducted a feasibility study of preoperative CRT with cisplatin plus 5-fluorouracil (CF) and elective lymph node irradiation followed by esophagectomy with radical lymph node dissection in patients with stage II/III ESCC.
METHODS: Patients with clinical stage II/III, excluding T4, ESCC (International Union Against Cancer TNM classification system, 6th edition) were eligible. Chemotherapy comprised two courses of CF infusion repeated after 4-weeks. Radiation therapy was concurrently administered to the primary tumor, metastatic lymph nodes, and regional lymph nodes at a dose of 41.4 Gy. After the completion of CRT, transthoracic esophagectomy with 2-3 fields lymphadenectomy was performed. The primary endpoint was the completion rate of protocol treatment with R0 resection.
RESULTS: Thirty-one eligible patients were enrolled. During CRT, the most common grade 3 or 4 toxicities were leukopenia (65%), neutropenia (65%), anemia (13%), thrombocytopenia (13%), febrile neutropenia (13%), anorexia (16%), esophagitis (16%) and hyponatremia (16%). Thirty patients (96.8%) underwent surgery. One patient received palliative chemotherapy because of appearance of lung metastasis during CRT. The completion rate of protocol treatment was 93.5% (29/31). There was one treatment-related death after surgery. Pathological complete response was achieved in 42% (13/30).
CONCLUSION: Preoperative CRT with CF and elective lymph node irradiation showed an acceptable toxicity and promising activity especially in ESCC.
METHODS: Patients with clinical stage II/III, excluding T4, ESCC (International Union Against Cancer TNM classification system, 6th edition) were eligible. Chemotherapy comprised two courses of CF infusion repeated after 4-weeks. Radiation therapy was concurrently administered to the primary tumor, metastatic lymph nodes, and regional lymph nodes at a dose of 41.4 Gy. After the completion of CRT, transthoracic esophagectomy with 2-3 fields lymphadenectomy was performed. The primary endpoint was the completion rate of protocol treatment with R0 resection.
RESULTS: Thirty-one eligible patients were enrolled. During CRT, the most common grade 3 or 4 toxicities were leukopenia (65%), neutropenia (65%), anemia (13%), thrombocytopenia (13%), febrile neutropenia (13%), anorexia (16%), esophagitis (16%) and hyponatremia (16%). Thirty patients (96.8%) underwent surgery. One patient received palliative chemotherapy because of appearance of lung metastasis during CRT. The completion rate of protocol treatment was 93.5% (29/31). There was one treatment-related death after surgery. Pathological complete response was achieved in 42% (13/30).
CONCLUSION: Preoperative CRT with CF and elective lymph node irradiation showed an acceptable toxicity and promising activity especially in ESCC.
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