PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level

Abstract Background Immunochemotherapy has become a new treatment for advanced esophageal squamous cell carcinoma (ESCC). Aims We aimed to study the clinical efficacy and toxicity of immunochemotherapy based on PD‐1/PD‐L1 compared with chemotherapy alone in the treatment of advanced ESCC, focusing o...

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Main Authors: Zixian Jin, Jiping Wang, Jiajing Sun, Chengchu Zhu, Jian Zhang, Bo Zhang
Format: Article
Language:English
Published: Wiley 2023-07-01
Series:Cancer Reports
Subjects:
Online Access:https://doi.org/10.1002/cnr2.1794
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author Zixian Jin
Jiping Wang
Jiajing Sun
Chengchu Zhu
Jian Zhang
Bo Zhang
author_facet Zixian Jin
Jiping Wang
Jiajing Sun
Chengchu Zhu
Jian Zhang
Bo Zhang
author_sort Zixian Jin
collection DOAJ
description Abstract Background Immunochemotherapy has become a new treatment for advanced esophageal squamous cell carcinoma (ESCC). Aims We aimed to study the clinical efficacy and toxicity of immunochemotherapy based on PD‐1/PD‐L1 compared with chemotherapy alone in the treatment of advanced ESCC, focusing on analyzing the influence of PD‐L1 expression level. Methods and Results Five randomized controlled trials comparing PD‐1/PD‐L1 based immunochemotherapy with chemotherapy alone for advanced ESCC were included. We extracted efficacy data (objective response rate [ORR], disease control rate [DCR], overall survival [OS] rate, progression‐free survival [PFS] rate) and safety data (treatment‐related adverse events, treatment‐related mortality) and performed meta‐analyses. Compared with chemotherapy alone, the ORR and DCR of immunochemotherapy increased by 2.05 times and 1.54 times, respectively. Overall, patients receiving immunochemotherapy had a significant long‐term survival advantage (OS: hazard ratio [HR] = 0.68, 95% confidence intervals [CI] 0.61–0.75; PFS: HR = 0.62, 95% CI 0.55, 0.70, respectively). Even with PD‐L1 tumor proportion score <1%, immunochemotherapy also showed a significant survival advantage (OS: HR = 0.65, 95% CI 0.46–0.93; PFS: HR = 0.56, 95% CI 0.46–0.69, respectively). However, for PD‐L1 combined positive score (CPS) < 1, the survival advantage of immunochemotherapy was not significant (OS: HR = 0.89, 95% CI 0.42–1.90; PFS: HR = 0.71, 95% CI 0.47–1.08, respectively). The toxicity of immunochemotherapy was higher than that of chemotherapy alone, but there was no statistical difference in treatment‐related mortality (odds ratio = 1.11, 95% CI 0.67–1.83). Conclusion In this study, treatment‐related mortality was similar between immunochemotherapy and chemotherapy. PD‐1/PD‐L1 based immunochemotherapy significantly could improve survival outcomes in patients with advanced ESCC. For patients with CPS <1, the survival advantage of immunochemotherapy was not significant compared with chemotherapy.
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spelling doaj.art-980a738c37744366919b6aae08b3b0b32023-07-24T07:58:57ZengWileyCancer Reports2573-83482023-07-0167n/an/a10.1002/cnr2.1794PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression levelZixian Jin0Jiping Wang1Jiajing Sun2Chengchu Zhu3Jian Zhang4Bo Zhang5Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaKey Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaDepartment of Cardiothoracic Surgery Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaKey Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaKey Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaKey Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University Linhai ChinaAbstract Background Immunochemotherapy has become a new treatment for advanced esophageal squamous cell carcinoma (ESCC). Aims We aimed to study the clinical efficacy and toxicity of immunochemotherapy based on PD‐1/PD‐L1 compared with chemotherapy alone in the treatment of advanced ESCC, focusing on analyzing the influence of PD‐L1 expression level. Methods and Results Five randomized controlled trials comparing PD‐1/PD‐L1 based immunochemotherapy with chemotherapy alone for advanced ESCC were included. We extracted efficacy data (objective response rate [ORR], disease control rate [DCR], overall survival [OS] rate, progression‐free survival [PFS] rate) and safety data (treatment‐related adverse events, treatment‐related mortality) and performed meta‐analyses. Compared with chemotherapy alone, the ORR and DCR of immunochemotherapy increased by 2.05 times and 1.54 times, respectively. Overall, patients receiving immunochemotherapy had a significant long‐term survival advantage (OS: hazard ratio [HR] = 0.68, 95% confidence intervals [CI] 0.61–0.75; PFS: HR = 0.62, 95% CI 0.55, 0.70, respectively). Even with PD‐L1 tumor proportion score <1%, immunochemotherapy also showed a significant survival advantage (OS: HR = 0.65, 95% CI 0.46–0.93; PFS: HR = 0.56, 95% CI 0.46–0.69, respectively). However, for PD‐L1 combined positive score (CPS) < 1, the survival advantage of immunochemotherapy was not significant (OS: HR = 0.89, 95% CI 0.42–1.90; PFS: HR = 0.71, 95% CI 0.47–1.08, respectively). The toxicity of immunochemotherapy was higher than that of chemotherapy alone, but there was no statistical difference in treatment‐related mortality (odds ratio = 1.11, 95% CI 0.67–1.83). Conclusion In this study, treatment‐related mortality was similar between immunochemotherapy and chemotherapy. PD‐1/PD‐L1 based immunochemotherapy significantly could improve survival outcomes in patients with advanced ESCC. For patients with CPS <1, the survival advantage of immunochemotherapy was not significant compared with chemotherapy.https://doi.org/10.1002/cnr2.1794PD‐1PD‐L1immunochemotherapysurvivalESCC
spellingShingle Zixian Jin
Jiping Wang
Jiajing Sun
Chengchu Zhu
Jian Zhang
Bo Zhang
PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
Cancer Reports
PD‐1
PD‐L1
immunochemotherapy
survival
ESCC
title PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
title_full PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
title_fullStr PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
title_full_unstemmed PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
title_short PD‐1/PD‐L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta‐analysis focus on PD‐L1 expression level
title_sort pd 1 pd l1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma a meta analysis focus on pd l1 expression level
topic PD‐1
PD‐L1
immunochemotherapy
survival
ESCC
url https://doi.org/10.1002/cnr2.1794
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