Supplementary Material for: Treatment of Metastatic Colorectal Carcinoma with Bevacizumab in First-Line and beyond First Progression: The KORALLE Non-Interventional Cohort Study
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Introduction: The non-interventional study (NIS) KORALLE evaluated effectiveness and safety of bevacizumab in patients with metastatic colorectal carcinoma (mCRC) treated with bevacizumab in combination with fluoropyrimidine-based chemotherapy in the first-line setting and beyond first progression in routine clinical practice. Methods: This prospective, multicenter NIS observed adult patients with mCRC who started first-line bevacizumab therapy. The planned maximum duration of observation per patient was 21 months. The primary effectiveness variable was progression-free survival in the first-line therapy setting (PFS-1). Secondary effectiveness variables included PFS after first progression as well as overall survival and overall response rate. All analyses were carried out descriptively for the full analysis population set (FAS). Effectiveness analyses were also assessed for predefined subgroups based on therapy goals. Results: Between December 2012 and July 2016, 2429 eligible patients were observed at 314 sites in Germany. In the first-line setting in the FAS, the median PFS-1 was 10.3 months (95% CI: 9.9; 10.8), median overall survival was 16.9 months (95% CI: 16.3; 17.5), and the overall response rate (ORR-1) was 44.2% (95% CI: 41.6%; 46.8%). Effectiveness results of all subgroups were similar to the FAS. Overall, 80.9% of patients experienced any adverse events, 36.6% of patients serious adverse events and 8.8% of patients fatal adverse events. Conclusion: The NIS KORALLE provided broad real-world evidence on effectiveness and safety of bevacizumab. Despite different treatment intentions, the combination of bevacizumab plus fluoropyrimidine-based chemotherapy was similarly effective in all subgroups in routine clinical practice. The safety information reported in this study is consistent with the known safety profile of bevacizumab. ClinicalTrials.gov identifier: NCT01775644
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