Long-term Results of Conversion Therapy for Initially Unresectable Gastric Cancer: Analysis of 122 Patients at the National Cancer Center in China

Purpose: To assess the long-term survival and prognostic factors of conversion therapy in patients with initially unresectable gastric cancer. Patients and methods: We conducted a retrospective study of clinicopathological and survival data of 122 consecutive patients who were diagnosed with initial...

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Published inJournal of Cancer Vol. 10; no. 24; pp. 5975 - 5985
Main Authors Wang, Tongbo, Wang, Nianchang, Ren, Hu, Zhou, Hong, Zhou, Aiping, Jin, Jing, Chen, Yingtai, Zhao, Dongbing
Format Journal Article
LanguageEnglish
Published Wyoming Ivyspring International Publisher Pty Ltd 01.01.2019
Ivyspring International Publisher
Subjects
Biomarkers
Blood tests
Cancer therapies
Chemotherapy
Endoscopy
Gastric cancer
Gastrointestinal surgery
Liver
Lymphatic system
Medical prognosis
Metastasis
Ovaries
Patients
Research Paper
Tumors
United States > US
China
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Summary:Purpose: To assess the long-term survival and prognostic factors of conversion therapy in patients with initially unresectable gastric cancer. Patients and methods: We conducted a retrospective study of clinicopathological and survival data of 122 consecutive patients who were diagnosed with initially unresectable gastric cancer and underwent the conversion surgery after systemic chemotherapy at the China National Cancer Center between May 2006 and May 2017. Results: For all the 122 patients, the 3- and 5-year overall survival (OS) rates from the date of chemotherapy initiation were 61.0% and 52.0%, respectively, with a median OS of 63.6 months. During follow-up, the recurrence was observed in 49 (40.1%) patients who underwent conversion surgery. According to the multivariate COX regression analysis, receipt of postoperative adjuvant chemotherapy (POAC) was the only significant independent predictor of a favorable OS (HR 0.40; 95% CI 0.18-0.85, P=0.017). Log-rank analysis showed that POAC group experienced a survival advantage in terms of PFS when compared with observation group (HR 0.53, 95%CI 0.31-0.92, P=0.009). Conclusions: Conversion therapy may provide long-term survival for patients with initially unresectable gastric cancer. Postoperative adjuvant chemotherapy might be recommended for patients who underwent conversion therapy.
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Competing Interests: The authors have declared that no competing interest exists.
ISSN:1837-9664
1837-9664
DOI:10.7150/jca.35527