Outcome of colorectal cancer patients treated with combination bevacizumab therapy: a pooled retrospective analysis of three European cohorts from the angiopredict initiative

Background/Aims: This study is aimed at analyzing the survival rates and prognostic factors of stage IV colorectal cancer patients from 3 European cohorts undergoing combination chemotherapy with bevacizumab. Methods: Progression free-survival (PFS) and overall survival (OS) were analyzed in 172 pat...

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Hauptverfasser: Betge, Johannes (VerfasserIn) , Belle, Sebastian (VerfasserIn) , Zhan, Tianzuo (VerfasserIn) , Härtel, Nicolai (VerfasserIn) , Kripp, Melanie (VerfasserIn) , Hofheinz, Ralf-Dieter (VerfasserIn) , Gaiser, Timo (VerfasserIn) , Ebert, Matthias (VerfasserIn) , Schulte, Nadine (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: October 19, 2016
In: Digestion
Year: 2016, Jahrgang: 94, Heft: 3, Pages: 129-137
ISSN:1421-9867
DOI:10.1159/000449412
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1159/000449412
Verlag, Volltext: https://www-karger-com.ezproxy.medma.uni-heidelberg.de/Article/FullText/449412
Volltext
Verfasserangaben:Johannes Betge, Ana Barat, Verena Murphy, Thomas Hielscher, Nicole C. Van Grieken, Sebastian Belle, Tianzuo Zhan, Nicolai Härtel, Melanie Kripp, Orna Bacon, Martijn Cordes, Elaine W. Kay, Henk M. W. Verheul, Maarten Neerincx, Bryan Hennessy, Ralf D. Hofheinz, Timo Gaiser, Bauke Ylstra, Jochen H. M. Prehn, Diether Lambrechts, Annette T. Byrne, Matthias P. Ebert, Nadine Schulte

MARC

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520 |a Background/Aims: This study is aimed at analyzing the survival rates and prognostic factors of stage IV colorectal cancer patients from 3 European cohorts undergoing combination chemotherapy with bevacizumab. Methods: Progression free-survival (PFS) and overall survival (OS) were analyzed in 172 patients using the Kaplan-Meier method and uni- and multivariable Cox proportional hazards regression models. Results: The median PFS was 9.7 and the median OS 27.4 months. Patients treated at centers in Germany (n = 97), Ireland (n = 32), and The Netherlands (n = 43) showed a median PFS of 9.9, 9.2, and 9.7 months, OS of 34.0, 20.5, and 25.1 months, respectively. Patients >65 years had a significantly shorter PFS (9.5 vs. 9.8 months) but not OS (27.4 vs. 27.5 months) than younger patients. High tumor grade (G3/4) was associated with a shorter PFS, T4 classification with both shorter PFS and OS. Fluoropyrimidine (FP) chemotherapy backbones (doublets and single) had comparable outcomes, while patients not receiving FP backbones had a shorter PFS. In multivariable analysis, age and non-FP backbone were associated with inferior PFS, T4 classification and therapy line >2nd were significantly associated with poor PFS and OS. Conclusion: The observed survival rates confirm previous studies and demonstrate reproducible benefits of combination bevacizumab regimens. Classification T4, non-FP chemotherapy backbone, and age >65 were associated with inferior outcome. 
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