PMID- 35117848 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220501 IS - 2219-6803 (Electronic) IS - 2218-676X (Print) IS - 2218-676X (Linking) VI - 9 IP - 8 DP - 2020 Aug TI - Comparison of different chemoradiotherapy regimens for the preoperative treatment in patients with locally advanced rectal cancer: a network meta-analysis. PG - 4857-4869 LID - 10.21037/tcr-20-683 [doi] AB - BACKGROUND: The efficacy of different neoadjuvant chemoradiotherapy regimens on locally advanced rectal cancer (LARC) remains confusing. We evaluated them together via a network meta-analysis in terms of survival benefits to find the optimal treatment. METHODS: We searched, EMBASE, Cochrane Central Register of Controlled Trials and the ClinicalTrials website according to the selection criteria for eligible publications before Oct 25, 2019. Pathological complete response rate (pCR), disease-free survival (DFS), and overall survival (OS) were analyzed based on Bayesian methods in the meta-analysis. RESULTS: Twenty-five articles containing 7,142 participants and 12 preoperative regimens were analyzed. In terms of pCR, radiation therapy plus 5-fluorouracil (RT+5-Fu), RT plus capecitabine (RT+CAPE), RT plus 5-fluorouracil and oxaliplatin (RT+FOLFOX), RT plus capecitabine and oxaliplatin (RT+XELOX), and RT plus S-1 and irinotecan (RT+IS) were better than RT alone [odds ratio (OR) =2.66, 95% credible interval [CrI], 1.38-5.01; OR =3.11, 95% CrI: 1.33-6.98; OR =4.03, 95% CrI: 1.77-9.47; OR =4.22, 95% CrI: 1.60-10.87; OR =4.55, 95% CrI: 1.11-18.88, respectively] and RT+FOLFOX and RT+XELOX were superior to FOLFOX (OR =4.58, 95% CrI: 1.57-14.19; OR =4.81, 95% CrI: 1.20-18.73), too. Benefits could be seen on comparing RT+CAPE, RT+FOLFOX, and RT+XELOX with RT (OR =0.84, 95% CrI: 0.73-0.97; OR =0.88, 95% CrI: 0.80-0.97; OR =0.79, 95% CrI: 0.66-0.95, respectively) in DFS. RT+XELOX seemed to have better effects on OS compared than RT+5-Fu and RT+CAPE (OR =0.78, 95% CrI: 0.61-1.00; OR =0.86, 95% CrI: 0.74-1.00, respectively). Moreover, according to surface under the cumulative ranking curve analysis, RT+XELOX had the best outcomes in terms of pCR (79.18%) and OS (83.49%) and RT plus capecitabine, irinotecan, and cetuximab (RT+XELIRI+CET) ranked first with respect to DFS (87.86%). CONCLUSIONS: RT+XELOX is likely to be the best treatment with a comprehensive curative effect and the standard treatment of 5-fluorouracil-based chemoradiotherapy has some advantages, as well. More relevant evidence is needed for clinicians' guidance. CI - 2020 Translational Cancer Research. All rights reserved. FAU - Yu, Zhengyi AU - Yu Z AD - Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Wang, Jiawei AU - Wang J AD - Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Xu, Lingyan AU - Xu L AD - Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Liu, Jin AU - Liu J AD - Clinical Medicine Research Institution, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Chen, Xiaofeng AU - Chen X AD - Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Gu, Yanhong AU - Gu Y AD - Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. LA - eng PT - Journal Article PL - China TA - Transl Cancer Res JT - Translational cancer research JID - 101585958 PMC - PMC8798459 OTO - NOTNLM OT - Chemoradiotherapy OT - locally advanced rectal cancer (LARC) OT - neoadjuvant treatment OT - network meta-analysis OT - preoperative treatment COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at http://dx.doi.org/10.21037/tcr-20-683). The authors have no conflicts of interest to declare. EDAT- 2020/08/01 00:00 MHDA- 2020/08/01 00:01 PMCR- 2020/08/01 CRDT- 2022/02/04 05:52 PHST- 2020/01/19 00:00 [received] PHST- 2020/06/23 00:00 [accepted] PHST- 2022/02/04 05:52 [entrez] PHST- 2020/08/01 00:00 [pubmed] PHST- 2020/08/01 00:01 [medline] PHST- 2020/08/01 00:00 [pmc-release] AID - tcr-09-08-4857 [pii] AID - 10.21037/tcr-20-683 [doi] PST - ppublish SO - Transl Cancer Res. 2020 Aug;9(8):4857-4869. doi: 10.21037/tcr-20-683.