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Objective@#To systematically evaluate the efficacy and safety between neoadjuvant concurrent chemoradiotherapy followed by surgery and surgery alone in the treatment of resectable esophageal squamous cell carcinoma.@*Methods@#Literature review was performed from Embase, PubMed, Web of Science, Cochrane Library, CBM, Wanfang Data, CNKI and Chongqing VIP. The randomized controlled clinical trials of concurrent chemoradiotherapy followed by surgery versus surgery alone in the treatment of resectable esophageal squamous cell carcinoma were retrieved. The meta-analysis of survival data, R0 resection rate, incidences of postoperative complications and peritreatment mortality was conducted by using RevMan 5.3 software.@*Results@#A total of 1450 patients from 11 controlled clinical trials were included in this meta-analysis. The results of the meta-analysis showed that concurrent chemoradiotherapy followed by surgery group had significantly higher 2-and 5-year overall survival rate (RR=1.14, 95%CI: 1.05-1.23, P=0.00) and progression-free survival rate (RR=1.56, 95%CI: 1.05-2.32, P=0.03). R0 resection rate were also improved in concurrent chemoradiotherapy followed by surgery group (RR=1.10, 95%CI: 1.05-1.14, P=0.00). Compared with the surgery alone group, the incidence of arrhythmia in the concurrent chemoradiotherapy plus surgery group was significantly higher (RR=2.45, 95%CI: 1.37-4.38, P=0.00). However, there was no significant difference in the overall incidence of postoperative complications (RR=1.12, 95%CI: 0.79-1.59, P=0.51) and incidence of peritreatment mortality (RR=1.78, 95%CI: 0.90-3.52, P=0.10) between two groups.@*Conclusions@#Neoadjuvant concurrent chemoradiotherapy followed by surgery improves the survival and R0 resection rate over surgery alone among patients with resectable esophageal squamous cell carcinoma, whereas it does not increase the risk of postoperative complications. Consequently, neoadjuvant concurrent chemoradiotherapy followed by surgery is an optimal treatment for patients with resectable esophageal squamous cell carcinoma.
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Objective To systematically evaluate the efficacy and safety between neoadjuvant concurrent chemoradiotherapy followed by surgery and surgery alone in the treatment of resectable esophageal squamous cell carcinoma.Methods Literature review was performed from Embase,PubMed,Web of Science,Cochrane Library,CBM,Wanfang Data,CNKI and Chongqing VIP.The randomized controlled clinical trials of concurrent chemoradiotherapy followed by surgery versus surgery alone in the treatment of resectable esophageal squamous cell carcinoma were retrieved.The meta-analysis of survival data,R0 resection rate,incidences of postoperative complications and peritreatment mortality was conducted by using RevMan 5.3 software.Results A total of 1450 patients from 11 controlled clinical trials were included in this meta-analysis.The results of the meta-analysis showed that concurrent chemoradiotherapy followed by surgery group had significantly higher 2-and 5-year overall survival rate (RR=1.14,95％CI:1.05-1.23,P=0.00) and progression-free survival rate (RR=1.56,95％CI:1.05-2.32,P=0.03).R0 resection rate were also improved in concurrent chemoradiotherapy followed by surgery group (RR=1.10,95％CI:1.05-1.14,P=0.00).Compared with the surgery alone group,the incidence of arrhythmia in the concurrent chemoradiotherapy plus surgery group was.significantly higher (RR=2.45,95％CI:1.37-4.38,P=0.00).However,there was no significant difference in the overall incidence of postoperative complications (RR=1.12,95％CI:0.79-1.59,P=0.51) and incidence of peritreatment mortality (RR=1.78,95％CI:0.90-3.52,P=0.10) between two groups.Conclusions Neoadjuvant concurrent chemoradiotherapy followed by surgery improves the survival and R0 resection rate over surgery alone among patients with resectable esophageal squamous cell carcinoma,whereas it does not increase the risk of postoperative complications.Consequently,neoadjuvant concurrent chemoradiotherapy followed by surgery is an optimal treatment for patients with resectable esophageal squamous cell carcinoma.
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Objective@#The role of additional docetaxel chemotherapy in the treatment of localised high-risk prostate cancer (PCa) remains a controversy. This meta-analysis aimed to investigate the effect of additional docetaxel chemotherapy on localised high-risk PCa.@*Methods@#A computerized search was performed in Pubmed, Embase, Cochrane Library, Web of Science, CBM, CNKI, VIP and Wanfang Data to collect clinical controlled trails on localised high-risk PCa treated with docetaxel chemotherapy from the inception to April 2019. The Review Manager 5.3 software was used to perform meta-analysis of survival data and adverse events.@*Results@#Six literatures were enrolled, including 3 187 patients. Compared with the standard treatment (local treatment combined with endocrine therapy) group, the progression-free survival (PFS) was prolonged in the standard treatment plus docetaxel group, and the difference was statistically significant. [hazard ratio(HR)=0.75, 95%CI 0.65-0.86, P<0.01]. Patients in the standard treatment plus docetaxel group had longer overall survival (OS) and biochemical recurrence-free survival (BRFS) in comparison with standard treatment group, but the difference was not statistically significant (HR=0.843, 95%CI 0.68-1.01, P=0.06; HR=0.86, 95%CI 0.69-1.07, P=0.17). In terms of safety, the incidence of adverse reactions was increased in the standard treatment plus docetaxel group, including the incidence of grade ≥3 neutropenia (RR=44.14, 95%CI 19.15-101.71, P<0.01), the incidence of grade ≥3 febrile neutropenia (RR=13.4, 95%CI 7.93-22.65, P<0.01) and the incidence of grade ≥3 diarrhea (RR=13.43, 95%CI 3.21-56.16, P<0.01).@*Conclusions@#Additional docetaxel chemotherapy could significantly improve the PFS in localised high-risk PCa patients. OS and BRFS were prolonged, but the difference was not statistically significant.
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Objective To systematically evaluate the clinical efficacy and safety between high-dose (74 to 80 Gy) and conventional-dose (64.0 to 70.2 Gy) conventionally fractionated external beam radiotherapy for stage T1b-4No-1M0 prostate cancer in this meta-analysis.Methods A literature search was performed in PubMea,ambasa,aochrane Librara,aeb of Scienca,aBa,aanfang Data,aNKI and Chongqing VIP to collect clinical trials on high-dose versus conventional-dose conventionally fractionated external beam radiotherapy of prostate cancer from the inception to July 1,2018.The included literatures were evaluated by Cochrane quality evaluation criteria and subject to meta-analysis by using Review Manager 5.3 statistical software.Results A total of 7 randomized controlled clinical trials involving 4 132 patients were included in the meta-analysis.The meta-analysis showed that the high-dose and conventional-dose groups yielded similar 10-year overall survival (RR=1.01,95％CI:0.96 to 1.07,P=0.64) and 10-year prostate cancer-specific survival (RR=1.01,95％CI:0.98 to 1.03,P=0.47).The biochemical failure rate in the high-dose group was significantly lower than that in the conventional-dose group (RR =0.78,95％CI:0.70 to 0.86,P＜0.01).Compared with the conventional-dose groua,ahe incidence of late grade ≥ 2 gastrointestinal and genitourinary adverse reactions (RR=1.48,95％CI:1.31 to 1.67,P＜0.01;RR=1.35,95％CI:1.06 to 1.73,P=0.02) was significantly higher in the high-dose group.Conclusion High-dose conventionally fractionated external beam radiotherapy has advantages in reducing the biochemical failure rate of patients with stage T1b-4N0-1M0 prostate cancer.Nevertheless,whether it can improve overall survival and prostate cancer-specific survival remains to be validated.High-dose radiotherapy also induce a higher incidence rate of late grade ≥ 2 gastrointestinal and genitourinary adverse reactions compared with conventional-dose radiotherapy.
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Objective To systematically evaluate the efficacy and safety between neoadjuvant therapy followed by radical surgery and definite chemoradiotherapy in the treatment of Ⅰ B2-Ⅱ B cervical cancer.Methods A computerized search was performed in PubMed,Embase,Cochrane Library,Web of Science,CBM,Wanfang Data,CNKI and VIP to collect controlled clinical trials related to neoadjuvant therapy followed by radical surgery versus definite chemoradiotherapy in the treatment of ⅠB2-ⅡB cervical cancer.The meta-analysis of survival data and adverse events was performed by Review Manager 5.3 software.Results Nine controlled clinical trials involving 3 914 patients were included in this meta-analysis.There were no significant differences in overall survival (HR =0.83,P =0.31) and progression-free survival (HR=O.85,P=0.57) between two groups.Compared with patients receiving definite chemoradiotherapy,those in the neoadjuvant therapy group had a significantly lower risk of irradiation enteritis (RR=0.27,P=0.03),whereas no significant difference was observed in the risk of irradiation cystitis (RR=0.30,P=0.34) and grade ≥ 3 neutropenia (RR=0.77,P=0.46) between two groups.Conclusion In the treatment of locally advanced ⅠB2-Ⅱ B cervical cancer,two modalities show similar survival benefits.Although the neoadjuvant therapy group yields a lower incidence of irradiation enteritis,the incidence rates of irradiation cystitis and grade ≥3 neutropenia do not significantly differ between two groups.Neoadjuvant therapy followed by radical surgery is not superior to the standard therapeutic regime.
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Objective The role of additional docetaxel chemotherapy in the treatment of localised high-risk prostate cancer (PCa) remains a controversy.This meta-analysis aimed to investigate the effect of additional docetaxel chemotherapy on localised high-risk PCa.Methods A computerized search was performed in Pubmed,Embase,Cochrane Library,Web of Science,CBM,CNKI,VIP and Wanfang Data to collect clinical controlled trails on localised high-risk PCa treated with docetaxel chemotherapy from the inception to April 2019.The Review Manager 5.3 software was used to perform meta-analysis of survival data and adverse events.Results Six literatures were enrolled,including 3 187 patients.Compared with the standard treatment (local treatment combined with endocrine therapy) group,the progression-free survival (PFS) was prolonged in the standard treatment plus docetaxel group,and the difference was statistically significant.[hazard ratio (HR) =0.75,95 ％ CI 0.65-0.86,P ＜ 0.01].Patients in the standard treatment plus docetaxel group had longer overall survival (OS) and biochemical recurrence-free survival (BRFS) in comparison with standard treatment group,but the difference was not statistically significant (HR =0.843,95％CI 0.68-1.01,P =0.06;HR =0.86,95％ CI 0.69-1.07,P =0.17).In terms of safety,the incidence of adverse reactions was increased in the standard treatment plus docetaxel group,including the incidence of grade ≥3 neutropenia (RR =44.14,95％ CI 19.15-101.71,P ＜0.01),the incidence of grade ≥ 3 febrile neutropenia (RR =13.4,95 ％ CI 7.93-22.65,P ＜ 0.01) and the incidence of grade ≥ 3 diarrhea (RR =13.43,95 ％ CI 3.21-56.16,P ＜ 0.01).Conclusions Additional docetaxel chemotherapy could significantly improve the PFS in localised high-risk PCa patients.OS and BRFS were prolonged,but the difference was not statistically significant.