• J Chin Med Assoc · Jan 2018

    The impact of pathological complete response after neoadjuvant chemoradiotherapy in locally advanced squamous cell carcinoma of esophagus.

    • Jing-Wei Lin, Chung-Ping Hsu, Hui-Ling Yeh, Cheng-Yen Chuang, and Chih-Hung Lin.
    • Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan, ROC.
    • J Chin Med Assoc. 2018 Jan 1; 81 (1): 18-24.

    BackgroundThe impact of pathological complete response after neoadjuvant chemoradiotherapy on survival of patients with squamous cell carcinoma of esophagus is still controversial. We retrospectively investigated the survival outcome in this group of patients.MethodsNinety-eight patients with locally advanced squamous cell carcinoma of esophagus, who received neoadjuvant chemoradiotherapy were included in this retrospective analysis. Treatment protocols were radiotherapy with standard dose 50.4 Gy/28 fr, and chemotherapy with cisplatin 20 mg/m2 and 5-FU 800 mg/m2 for 4 days given on week 1 and 5. After neoadjuvant chemoradiotherapy is completed, patients who were eligible for surgery received surgery within 4-6 weeks. Patients who were not suitable for surgery were shifted to definite chemoradiotherapy. The primary end points were overall survival and progression-free survival.ResultsSixty-eight patients out of the ninety-eight patients received surgery after neoadjuvant chemoradiotherapy. There were 32 patients who achieved pathological complete response with a pCR rate of 47%. Thirty patients were shifted to definite concurrent chemoradiotherapy. The 2-year overall survival rate was 81.3% in the patients whose tumors showed a pCR and 58.3% in the patients with tumors that had a pathological partial response (p = 0.025). The 2-year overall survival in patients who received neoadjuvant chemoradiotherapy followed by surgery and definite chemoradiotherapy were 69.1% and 40.0%, respectively. There are 13 patients experienced grade 3-4 adverse event.ConclusionPathological complete response after neoadjuvant chemoradiotherapy is associated with a significant survival benefit in patients with locally advanced squamous cell carcinoma of esophagus. The toxicities related to neoadjuvant chemoradiotherapy were tolerable.Copyright © 2017. Published by Elsevier Taiwan LLC.

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