Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis

ObjectivesTo evaluate the clinical curative effects and toxicity of neoadjuvant chemoradiotherapy for resectable gastric cancer compared to those of neoadjuvant chemotherapy.MethodsA systematic review and meta-analysis of the randomized controlled trials (RCTs) of neoadjuvant chemoradiotherapy versu...

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Main Authors: Jiuzhou Chen, Yaru Guo, Miao Fang, Yan Yuan, Youqi Zhu, Yong Xin, Longzhen Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2022.927119/full
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author Jiuzhou Chen
Jiuzhou Chen
Yaru Guo
Yaru Guo
Miao Fang
Miao Fang
Yan Yuan
Yan Yuan
Youqi Zhu
Youqi Zhu
Yong Xin
Yong Xin
Longzhen Zhang
Longzhen Zhang
author_facet Jiuzhou Chen
Jiuzhou Chen
Yaru Guo
Yaru Guo
Miao Fang
Miao Fang
Yan Yuan
Yan Yuan
Youqi Zhu
Youqi Zhu
Yong Xin
Yong Xin
Longzhen Zhang
Longzhen Zhang
author_sort Jiuzhou Chen
collection DOAJ
description ObjectivesTo evaluate the clinical curative effects and toxicity of neoadjuvant chemoradiotherapy for resectable gastric cancer compared to those of neoadjuvant chemotherapy.MethodsA systematic review and meta-analysis of the randomized controlled trials (RCTs) of neoadjuvant chemoradiotherapy versus neoadjuvant chemotherapy were performed in patients with resectable gastric cancer.ResultsSeven RCTs were included (601 patients; 302 in the neoadjuvant chemoradiotherapy group and 299 in the neoadjuvant chemotherapy group). The neoadjuvant chemoradiotherapy group had an increased number of patients with a complete response [odds ratio (OR) = 3.79, 95% confidence interval (CI): 1.68–8.54, p = 0.001] and improved objective response rate (OR = 2.78, 95% CI: 1.69–4.57, p < 0.0001), 1-year (OR = 3.51, 95% CI: 1.40–8.81, p = 0.007) and 3-year (OR = 2.14, 95% CI: 1.30–3.50, p = 0.003) survival rates, R0 resection rate (OR = 2.21, 95% CI: 1.39–3.50, p = 0.0008), and complete pathologic response (OR = 4.39, 95% CI: 1.59–12.14, p = 0.004). Regarding the incidence of adverse effects after neoadjuvant therapy, only the occurrence rate of gastrointestinal reaction in the neoadjuvant chemoradiotherapy group was higher than that in the neoadjuvant chemotherapy group (OR = 1.76, 95% CI: 1.09–2.85, p = 0.02), and there was no significant difference in other adverse effects. There was no difference in the incidence of postoperative complications between the two groups.ConclusionNeoadjuvant chemoradiotherapy for resectable gastric cancer has several advantages in terms of efficacy and safety compared to neoadjuvant chemotherapy. Therefore, neoadjuvant chemoradiotherapy has great potential as an effective therapy for resectable gastric cancers.Systematic Review Registrationhttps://inplasy.com/inplasy-2022-3-0164, registration number INPLASY202230164.
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spelling doaj.art-5c028f781b614c51a172082c7ccd92f52022-12-22T00:54:27ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2022-08-011210.3389/fonc.2022.927119927119Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysisJiuzhou Chen0Jiuzhou Chen1Yaru Guo2Yaru Guo3Miao Fang4Miao Fang5Yan Yuan6Yan Yuan7Youqi Zhu8Youqi Zhu9Yong Xin10Yong Xin11Longzhen Zhang12Longzhen Zhang13Department of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaDepartment of Radiation, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, ChinaDepartment of Cancer Institute, Xuzhou Medical University, Jiangsu, ChinaObjectivesTo evaluate the clinical curative effects and toxicity of neoadjuvant chemoradiotherapy for resectable gastric cancer compared to those of neoadjuvant chemotherapy.MethodsA systematic review and meta-analysis of the randomized controlled trials (RCTs) of neoadjuvant chemoradiotherapy versus neoadjuvant chemotherapy were performed in patients with resectable gastric cancer.ResultsSeven RCTs were included (601 patients; 302 in the neoadjuvant chemoradiotherapy group and 299 in the neoadjuvant chemotherapy group). The neoadjuvant chemoradiotherapy group had an increased number of patients with a complete response [odds ratio (OR) = 3.79, 95% confidence interval (CI): 1.68–8.54, p = 0.001] and improved objective response rate (OR = 2.78, 95% CI: 1.69–4.57, p < 0.0001), 1-year (OR = 3.51, 95% CI: 1.40–8.81, p = 0.007) and 3-year (OR = 2.14, 95% CI: 1.30–3.50, p = 0.003) survival rates, R0 resection rate (OR = 2.21, 95% CI: 1.39–3.50, p = 0.0008), and complete pathologic response (OR = 4.39, 95% CI: 1.59–12.14, p = 0.004). Regarding the incidence of adverse effects after neoadjuvant therapy, only the occurrence rate of gastrointestinal reaction in the neoadjuvant chemoradiotherapy group was higher than that in the neoadjuvant chemotherapy group (OR = 1.76, 95% CI: 1.09–2.85, p = 0.02), and there was no significant difference in other adverse effects. There was no difference in the incidence of postoperative complications between the two groups.ConclusionNeoadjuvant chemoradiotherapy for resectable gastric cancer has several advantages in terms of efficacy and safety compared to neoadjuvant chemotherapy. Therefore, neoadjuvant chemoradiotherapy has great potential as an effective therapy for resectable gastric cancers.Systematic Review Registrationhttps://inplasy.com/inplasy-2022-3-0164, registration number INPLASY202230164.https://www.frontiersin.org/articles/10.3389/fonc.2022.927119/fullresectable gastric cancergastrointestinal cancersneoadjuvant chemoradiotherapyneoadjuvant chemotherapymeta-analysis
spellingShingle Jiuzhou Chen
Jiuzhou Chen
Yaru Guo
Yaru Guo
Miao Fang
Miao Fang
Yan Yuan
Yan Yuan
Youqi Zhu
Youqi Zhu
Yong Xin
Yong Xin
Longzhen Zhang
Longzhen Zhang
Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
Frontiers in Oncology
resectable gastric cancer
gastrointestinal cancers
neoadjuvant chemoradiotherapy
neoadjuvant chemotherapy
meta-analysis
title Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
title_full Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
title_fullStr Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
title_full_unstemmed Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
title_short Neoadjuvant chemoradiotherapy for resectable gastric cancer: A meta-analysis
title_sort neoadjuvant chemoradiotherapy for resectable gastric cancer a meta analysis
topic resectable gastric cancer
gastrointestinal cancers
neoadjuvant chemoradiotherapy
neoadjuvant chemotherapy
meta-analysis
url https://www.frontiersin.org/articles/10.3389/fonc.2022.927119/full
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