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Impact of primary tumour location and RAS/BRAF mutational status in metastatic colorectal cancer treated with first-line regimens containing oxaliplatin and bevacizumab: Prognostic factors from the AIO KRK0207 first-line and maintenance therapy trial

The major prognostic relevance of primary tumour location (LPT) in advanced colorectal cancer was shown in large retrospective studies, but quantitative estimates are highly heterogeneous, and there is still limited information about its impact within the framework of biomarker-guided treatment stra...

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Published in:European journal of cancer (1990) 2018-09, Vol.101, p.105-113
Main Authors: Hegewisch-Becker, Susanna, Nöpel-Dünnebacke, Stefanie, Hinke, Axel, Graeven, Ullrich, Reinacher-Schick, Anke, Hertel, Jan, Lerchenmüller, Christian A., Killing, Birgitta, Depenbusch, Reinhard, Al-Batran, Salah-Eddin, Lange, Thoralf, Dietrich, Georg, Tannapfel, Andrea, Arnold, Dirk
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cited_by cdi_FETCH-LOGICAL-c384t-695d867b142a0476fed5229c2c4001a6976aeb6a26f9d6ced0f694d201ca62283
cites cdi_FETCH-LOGICAL-c384t-695d867b142a0476fed5229c2c4001a6976aeb6a26f9d6ced0f694d201ca62283
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container_title European journal of cancer (1990)
container_volume 101
creator Hegewisch-Becker, Susanna
Nöpel-Dünnebacke, Stefanie
Hinke, Axel
Graeven, Ullrich
Reinacher-Schick, Anke
Hertel, Jan
Lerchenmüller, Christian A.
Killing, Birgitta
Depenbusch, Reinhard
Al-Batran, Salah-Eddin
Lange, Thoralf
Dietrich, Georg
Tannapfel, Andrea
Arnold, Dirk
description The major prognostic relevance of primary tumour location (LPT) in advanced colorectal cancer was shown in large retrospective studies, but quantitative estimates are highly heterogeneous, and there is still limited information about its impact within the framework of biomarker-guided treatment strategies. Therefore, we analysed LPT in relation to other clinical and molecular parameters, based on mature survival data from the recent randomised AIO KRK0207 trial. Patients uniformly received first-line induction treatment with a combination of bevacizumab, oxaliplatin and fluoropyrimidine. LPT was retrospectively determined using surgical reports, pathology reports and endoscopy reports. The prognostic analyses were performed using Kaplan–Meier estimations and log-rank tests, while hazard ratios (HRs) and multivariable results were derived from Cox models. Among 754 patients with unequivocal information on LPT, patients with left-sided tumours showed a median overall survival of 24.8 months compared with the right-sided cohort with 18.4 months (HR: 1.54, 95% confidence interval: 1.30–1.81, P 
doi_str_mv 10.1016/j.ejca.2018.06.015
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Therefore, we analysed LPT in relation to other clinical and molecular parameters, based on mature survival data from the recent randomised AIO KRK0207 trial. Patients uniformly received first-line induction treatment with a combination of bevacizumab, oxaliplatin and fluoropyrimidine. LPT was retrospectively determined using surgical reports, pathology reports and endoscopy reports. The prognostic analyses were performed using Kaplan–Meier estimations and log-rank tests, while hazard ratios (HRs) and multivariable results were derived from Cox models. Among 754 patients with unequivocal information on LPT, patients with left-sided tumours showed a median overall survival of 24.8 months compared with the right-sided cohort with 18.4 months (HR: 1.54, 95% confidence interval: 1.30–1.81, P &lt; 0.0001). In a multivariable model, LPT proved to be the strongest prognosticator (HR 1.60), with performance status, number of metastatic sites, baseline carcinoembryonic antigen (CEA) and platelets independently retaining prognostic significance. In the subgroup of patients with known RAS/BRAF status (n = 567, 75%), a BRAF mutation showed the greatest unfavourable impact (HR 3.16). Although BRAF is strongly correlated to LPT, the latter remained a significant prognosticator in the BRAF wild-type subgroup. In contrast, no major impact of LPT was seen on tumours carrying RAS mutations. Within the framework of a uniform treatment strategy according to the current standards, LPT proved to have an important, although not solely dominating, relevance for survival prognosis. Its impact seems to be low in tumours with a RAS mutation. ClinicalTrials.govNCT00973609. •Primary tumour location was a major prognostic factor in patients receiving triple combinations including bevacizumab.•A right-sided tumour location retained its unfavourable prognostic impact on survival in multivariable analysis.•Performance status, number of metastatic sites, baseline CEA and platelets were additional factors of independent impact.•When incorporating molecular data, right-sided tumours were also associated with shorter survival in the BRAF-mutant subgroup.•In contrast, no prognostic impact of the location of the primary tumour could be shown in case of RAS mutations.</description><identifier>ISSN: 0959-8049</identifier><identifier>EISSN: 1879-0852</identifier><identifier>DOI: 10.1016/j.ejca.2018.06.015</identifier><identifier>PMID: 30036739</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Adult ; Aged ; Aged, 80 and over ; Antineoplastic Combined Chemotherapy Protocols - therapeutic use ; Bevacizumab ; Bevacizumab - administration &amp; dosage ; Biomarkers ; BRAF mutation ; Cancer ; Cancer therapies ; Carcinoembryonic antigen ; Colon - drug effects ; Colon - metabolism ; Colon - pathology ; Colorectal cancer ; Colorectal carcinoma ; Colorectal Neoplasms - drug therapy ; Colorectal Neoplasms - genetics ; Confidence intervals ; Endoscopy ; Female ; First-line therapy ; Humans ; Immunotherapy ; Kaplan-Meier Estimate ; Maintenance Chemotherapy ; Male ; Medical treatment ; Metastases ; Middle Aged ; Monoclonal antibodies ; Mutation ; Overall survival ; Oxaliplatin ; Oxaliplatin - administration &amp; dosage ; Patients ; Platelets ; Primary tumour location ; Prognosis ; Prognostic factors ; Proto-Oncogene Proteins B-raf - genetics ; Rank tests ; RAS mutation ; ras Proteins - genetics ; Rectum - drug effects ; Rectum - metabolism ; Rectum - pathology ; Retrospective Studies ; Subgroups ; Surgery ; Survival ; Targeted cancer therapy ; Tumors ; Young Adult</subject><ispartof>European journal of cancer (1990), 2018-09, Vol.101, p.105-113</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright © 2018 Elsevier Ltd. All rights reserved.</rights><rights>Copyright Elsevier Science Ltd. Sep 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-695d867b142a0476fed5229c2c4001a6976aeb6a26f9d6ced0f694d201ca62283</citedby><cites>FETCH-LOGICAL-c384t-695d867b142a0476fed5229c2c4001a6976aeb6a26f9d6ced0f694d201ca62283</cites><orcidid>0000-0002-6037-8836</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30036739$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hegewisch-Becker, Susanna</creatorcontrib><creatorcontrib>Nöpel-Dünnebacke, Stefanie</creatorcontrib><creatorcontrib>Hinke, Axel</creatorcontrib><creatorcontrib>Graeven, Ullrich</creatorcontrib><creatorcontrib>Reinacher-Schick, Anke</creatorcontrib><creatorcontrib>Hertel, Jan</creatorcontrib><creatorcontrib>Lerchenmüller, Christian A.</creatorcontrib><creatorcontrib>Killing, Birgitta</creatorcontrib><creatorcontrib>Depenbusch, Reinhard</creatorcontrib><creatorcontrib>Al-Batran, Salah-Eddin</creatorcontrib><creatorcontrib>Lange, Thoralf</creatorcontrib><creatorcontrib>Dietrich, Georg</creatorcontrib><creatorcontrib>Tannapfel, Andrea</creatorcontrib><creatorcontrib>Arnold, Dirk</creatorcontrib><title>Impact of primary tumour location and RAS/BRAF mutational status in metastatic colorectal cancer treated with first-line regimens containing oxaliplatin and bevacizumab: Prognostic factors from the AIO KRK0207 first-line and maintenance therapy trial</title><title>European journal of cancer (1990)</title><addtitle>Eur J Cancer</addtitle><description>The major prognostic relevance of primary tumour location (LPT) in advanced colorectal cancer was shown in large retrospective studies, but quantitative estimates are highly heterogeneous, and there is still limited information about its impact within the framework of biomarker-guided treatment strategies. Therefore, we analysed LPT in relation to other clinical and molecular parameters, based on mature survival data from the recent randomised AIO KRK0207 trial. Patients uniformly received first-line induction treatment with a combination of bevacizumab, oxaliplatin and fluoropyrimidine. LPT was retrospectively determined using surgical reports, pathology reports and endoscopy reports. The prognostic analyses were performed using Kaplan–Meier estimations and log-rank tests, while hazard ratios (HRs) and multivariable results were derived from Cox models. Among 754 patients with unequivocal information on LPT, patients with left-sided tumours showed a median overall survival of 24.8 months compared with the right-sided cohort with 18.4 months (HR: 1.54, 95% confidence interval: 1.30–1.81, P &lt; 0.0001). In a multivariable model, LPT proved to be the strongest prognosticator (HR 1.60), with performance status, number of metastatic sites, baseline carcinoembryonic antigen (CEA) and platelets independently retaining prognostic significance. In the subgroup of patients with known RAS/BRAF status (n = 567, 75%), a BRAF mutation showed the greatest unfavourable impact (HR 3.16). Although BRAF is strongly correlated to LPT, the latter remained a significant prognosticator in the BRAF wild-type subgroup. In contrast, no major impact of LPT was seen on tumours carrying RAS mutations. Within the framework of a uniform treatment strategy according to the current standards, LPT proved to have an important, although not solely dominating, relevance for survival prognosis. Its impact seems to be low in tumours with a RAS mutation. 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Nöpel-Dünnebacke, Stefanie ; Hinke, Axel ; Graeven, Ullrich ; Reinacher-Schick, Anke ; Hertel, Jan ; Lerchenmüller, Christian A. ; Killing, Birgitta ; Depenbusch, Reinhard ; Al-Batran, Salah-Eddin ; Lange, Thoralf ; Dietrich, Georg ; Tannapfel, Andrea ; Arnold, Dirk</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-695d867b142a0476fed5229c2c4001a6976aeb6a26f9d6ced0f694d201ca62283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Antineoplastic Combined Chemotherapy Protocols - therapeutic use</topic><topic>Bevacizumab</topic><topic>Bevacizumab - administration &amp; dosage</topic><topic>Biomarkers</topic><topic>BRAF mutation</topic><topic>Cancer</topic><topic>Cancer therapies</topic><topic>Carcinoembryonic antigen</topic><topic>Colon - drug effects</topic><topic>Colon - metabolism</topic><topic>Colon - pathology</topic><topic>Colorectal cancer</topic><topic>Colorectal carcinoma</topic><topic>Colorectal Neoplasms - drug therapy</topic><topic>Colorectal Neoplasms - genetics</topic><topic>Confidence intervals</topic><topic>Endoscopy</topic><topic>Female</topic><topic>First-line therapy</topic><topic>Humans</topic><topic>Immunotherapy</topic><topic>Kaplan-Meier Estimate</topic><topic>Maintenance Chemotherapy</topic><topic>Male</topic><topic>Medical treatment</topic><topic>Metastases</topic><topic>Middle Aged</topic><topic>Monoclonal antibodies</topic><topic>Mutation</topic><topic>Overall survival</topic><topic>Oxaliplatin</topic><topic>Oxaliplatin - administration &amp; 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Therefore, we analysed LPT in relation to other clinical and molecular parameters, based on mature survival data from the recent randomised AIO KRK0207 trial. Patients uniformly received first-line induction treatment with a combination of bevacizumab, oxaliplatin and fluoropyrimidine. LPT was retrospectively determined using surgical reports, pathology reports and endoscopy reports. The prognostic analyses were performed using Kaplan–Meier estimations and log-rank tests, while hazard ratios (HRs) and multivariable results were derived from Cox models. Among 754 patients with unequivocal information on LPT, patients with left-sided tumours showed a median overall survival of 24.8 months compared with the right-sided cohort with 18.4 months (HR: 1.54, 95% confidence interval: 1.30–1.81, P &lt; 0.0001). In a multivariable model, LPT proved to be the strongest prognosticator (HR 1.60), with performance status, number of metastatic sites, baseline carcinoembryonic antigen (CEA) and platelets independently retaining prognostic significance. In the subgroup of patients with known RAS/BRAF status (n = 567, 75%), a BRAF mutation showed the greatest unfavourable impact (HR 3.16). Although BRAF is strongly correlated to LPT, the latter remained a significant prognosticator in the BRAF wild-type subgroup. In contrast, no major impact of LPT was seen on tumours carrying RAS mutations. Within the framework of a uniform treatment strategy according to the current standards, LPT proved to have an important, although not solely dominating, relevance for survival prognosis. Its impact seems to be low in tumours with a RAS mutation. 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identifier ISSN: 0959-8049
ispartof European journal of cancer (1990), 2018-09, Vol.101, p.105-113
issn 0959-8049
1879-0852
language eng
recordid cdi_proquest_miscellaneous_2075546610
source ScienceDirect Freedom Collection 2022-2024
subjects Adult
Aged
Aged, 80 and over
Antineoplastic Combined Chemotherapy Protocols - therapeutic use
Bevacizumab
Bevacizumab - administration & dosage
Biomarkers
BRAF mutation
Cancer
Cancer therapies
Carcinoembryonic antigen
Colon - drug effects
Colon - metabolism
Colon - pathology
Colorectal cancer
Colorectal carcinoma
Colorectal Neoplasms - drug therapy
Colorectal Neoplasms - genetics
Confidence intervals
Endoscopy
Female
First-line therapy
Humans
Immunotherapy
Kaplan-Meier Estimate
Maintenance Chemotherapy
Male
Medical treatment
Metastases
Middle Aged
Monoclonal antibodies
Mutation
Overall survival
Oxaliplatin
Oxaliplatin - administration & dosage
Patients
Platelets
Primary tumour location
Prognosis
Prognostic factors
Proto-Oncogene Proteins B-raf - genetics
Rank tests
RAS mutation
ras Proteins - genetics
Rectum - drug effects
Rectum - metabolism
Rectum - pathology
Retrospective Studies
Subgroups
Surgery
Survival
Targeted cancer therapy
Tumors
Young Adult
title Impact of primary tumour location and RAS/BRAF mutational status in metastatic colorectal cancer treated with first-line regimens containing oxaliplatin and bevacizumab: Prognostic factors from the AIO KRK0207 first-line and maintenance therapy trial
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