TY - JOUR

T1 - Efficacy and safety of neoadjuvant immunotherapy combined with chemoradiotherapy or chemotherapy in esophageal cancer

T2 - A systematic review and meta-analysis

AU - Liu, Yunsong

AU - Bao, Yongxing

AU - Yang, Xu

AU - Sun, Shuang

AU - Yuan, Meng

AU - Ma, Zeliang

AU - Zhang, Wanting

AU - Zhai, Yirui

AU - Wang, Yang

AU - Men, Yu

AU - Qin, Jianjun

AU - Xue, Liyan

AU - Wang, Jun

AU - Hui, Zhouguang

PY - 2023/1/24

Y1 - 2023/1/24

N2 - Background: Significant progress has been made in the investigation of neoadjuvant immune-chemoradiotherapy (NICRT) and neoadjuvant immune-chemotherapy (NICT) on the outcomes of esophageal cancer patients. To summarize the current developments, a systematic review and meta-analysis were conducted to evaluate the efficacy and safety of neoadjuvant immunotherapy combined with chemoradiotherapy or chemotherapy. Methods: A search strategy of prospective studies on esophageal cancer receiving neoadjuvant immunotherapy was predefined to scan PubMed, Embase, Cochrane, and additional major conferences for prospective studies. Efficacy was assessed by pathological complete response (pCR), major pathological response (MPR), and R0 resection rates. Safety was evaluated based on the incidence of grade ≥ 3 treatment-related adverse events (TRAEs), neoadjuvant therapy completion rate, surgical resection rate, and surgical delay rate. Differences between the NICRT and NICT groups were also analyzed. Results: A total of 38 studies qualified for the analysis. The pooled pCR, MPR, and R0 resection rates were 30, 58, and 99%, respectively. The pCR and MPR in the NICRT vs. NICT group were 38% vs. 28% (p=0.078) and 67% vs. 57% (p=0.181), respectively. The pooled incidence of grade ≥ 3 TRAEs was 24% (NICRT,58%, I2 = 61% vs. NICT,18%, I2 = 79%; p

AB - Background: Significant progress has been made in the investigation of neoadjuvant immune-chemoradiotherapy (NICRT) and neoadjuvant immune-chemotherapy (NICT) on the outcomes of esophageal cancer patients. To summarize the current developments, a systematic review and meta-analysis were conducted to evaluate the efficacy and safety of neoadjuvant immunotherapy combined with chemoradiotherapy or chemotherapy. Methods: A search strategy of prospective studies on esophageal cancer receiving neoadjuvant immunotherapy was predefined to scan PubMed, Embase, Cochrane, and additional major conferences for prospective studies. Efficacy was assessed by pathological complete response (pCR), major pathological response (MPR), and R0 resection rates. Safety was evaluated based on the incidence of grade ≥ 3 treatment-related adverse events (TRAEs), neoadjuvant therapy completion rate, surgical resection rate, and surgical delay rate. Differences between the NICRT and NICT groups were also analyzed. Results: A total of 38 studies qualified for the analysis. The pooled pCR, MPR, and R0 resection rates were 30, 58, and 99%, respectively. The pCR and MPR in the NICRT vs. NICT group were 38% vs. 28% (p=0.078) and 67% vs. 57% (p=0.181), respectively. The pooled incidence of grade ≥ 3 TRAEs was 24% (NICRT,58%, I2 = 61% vs. NICT,18%, I2 = 79%; p

KW - Immunology

KW - efficacy

KW - safety

KW - neoadjuvant

KW - immunotherapy

KW - chemotherapy

KW - chemoradiotherapy

KW - esophageal cancer

KW - meta-analysis

U2 - 10.3389/fimmu.2023.1117448

DO - 10.3389/fimmu.2023.1117448

M3 - Journal article

VL - 14

JO - Frontiers in Immunology

JF - Frontiers in Immunology

SN - 1664-3224

M1 - 117448

ER -