Abstract
Fluoropyrimidine-based regimens are the most common treatments in advanced gastric cancer. We used a Bayesian network meta-analysis to identify the optimal fluoropyrimidine-based chemotherapy by comparing their relative efficacy and safety. We systematically searched databases and extracted data from randomized controlled trials, which compared fluoropyrimidine-based regimens as first-line treatment in AGC. The main outcomes were overall survival (OS), progression-free survival (PFS), overall response rate (ORR), and grade 3 or 4 adverse events (AEs). A total of 12 RCTs of 4026 patients were included in our network meta-analysis. Pooled analysis showed S-1 and capecitabine had a significant OS benefit over 5-Fu, with hazard ratios of 0.90 (95%CI = 0.81–0.99) and 0.88 (95%CI = 0.80–0.96), respectively. The result also exhibited a trend that S-1 and capecitabine prolonged PFS in contrast to 5-Fu, with hazard ratios of 0.84 (95%CI = 0.66–1.02) and 0.84 (95%CI = 0.65–1.03), respectively. Additionally, all the three fluoropyrimidine-based regimens were similar in terms of ORR and grade 3 or 4 AEs. Compared with regimens based on 5-Fu, regimens based on S-1 or capecitabine demonstrated a significant OS improvement without compromise of AEs as first-line treatment in AGC in Asian population. S-1 and capecitabine can be interchangeable according their different emphasis on AEs.
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Acknowledgments
This study was supported by grants from National Natural Science Foundation of China (grant no. 81272611) and Major Science and Technology Innovation Project of Hangzhou (Grant no. 20112312A01). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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S1A Fig.
Comparison of OS between S-1 based (the Left) and 5-Fu based regimens (the right). (JPEG 100 kb)
S1B Fig.
Comparison of OS between Capecitabine based (the Left) and 5-Fu based regimens (the right). (JPEG 127 kb)
S1C Fig.
Comparison of OS between S-1 based (the Left) and Capecitabine based regimens (the right). (JPEG 116 kb)
S2A Fig.
Comparison of PFS between S-1 based (the Left) and 5-Fu based regimens (the right). (JPEG 103 kb)
S2B Fig.
Comparison of PFS between Capecitabine based (the Left) and 5-Fu based regimens (the right). (JPEG 285 kb)
S2C Fig.
Comparison of OS between S-1 based (the Left) and Capecitabine based regimens (the right). (JPEG 280 kb)
S3A Fig.
Comparison of ORR between S-1 based and 5-Fu based regimens. (JPEG 261 kb)
S3B Fig.
Comparison of ORR between Capecitabine based and 5-Fu based regimens. (JPEG 117 kb)
S3C Fig.
Comparison of ORR between S-1 based and Capecitabine based regimens. (JPEG 107 kb)
S4A Fig.
Comparison of Grade 3 or 4 AEs between S-1 based and 5-Fu based regimens. (JPEG 101 kb)
S4B Fig.
Comparison of Grade 3 or 4 AEs between Capecitabine based and 5-Fu based regimens. (JPEG 106 kb)
S4C Fig.
Comparison of Grade 3 or 4 AEs between S-1 based and Capecitabine based regimens. (JPEG 107 kb)
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Zhu, L., Liu, J. & MA, S. Fluoropyrimidine-Based Chemotherapy as First-Line Treatment for Advanced Gastric Cancer: a Bayesian Network Meta-Analysis. Pathol. Oncol. Res. 22, 853–861 (2016). https://doi.org/10.1007/s12253-016-0078-1
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DOI: https://doi.org/10.1007/s12253-016-0078-1