{"id":1395,"date":"2016-11-29T18:46:03","date_gmt":"2016-11-30T02:46:03","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/analysis-primary-tumor-location-predicts-treatment-response-in-patients-with-metastatic-colorectal-cancer\/"},"modified":"2023-11-19T12:17:02","modified_gmt":"2023-11-19T20:17:02","slug":"analysis-primary-tumor-location-predicts-treatment-response-in-patients-with-metastatic-colorectal-cancer","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/analysis-primary-tumor-location-predicts-treatment-response-in-patients-with-metastatic-colorectal-cancer\/","title":{"rendered":"Analysis: Primary tumor location predicts treatment response in patients with metastatic colorectal cancer"},"content":{"rendered":"\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n  <div class=\"text-container\">\n              \n<div class=\"f--field f--eyebrow\">\n\n    \n  <span>Press Release<\/span>\n\n\n\n<\/div>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Analysis: Primary tumor location predicts treatment response in patients with metastatic colorectal cancer<\/h1>\n\n\n<\/div>\n    \n    \n          <div class=\"meta\">\n                  <span class=\"author\">\u00a0Mary Dacuma<\/span>\n        \n                  <span class=\"date\">November 29, 2016<\/span>\n              <\/div>\n    \n              \n<div class=\"f--field f--embed\">\n\n    \n  <div class=\"heateor_sss_sharing_container heateor_sss_horizontal_sharing\" data-heateor-ss-offset=\"0\" data-heateor-sss-href='https:\/\/keck.usc.edu\/news\/analysis-primary-tumor-location-predicts-treatment-response-in-patients-with-metastatic-colorectal-cancer\/'><div class=\"heateor_sss_sharing_ul\"><a aria-label=\"Facebook\" class=\"heateor_sss_facebook\" 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2.75z\"\/><\/svg><\/span><\/a><\/div><div class=\"heateorSssClear\"><\/div><\/div>\n\n\n<\/div>\n        \n  <\/div>\n\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n        <figure>\n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Keck-School-600x432.jpg\"\n                    data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n        alt=\"Keck School of Medicine of USC\"\n        \n                                      \/>\n\n    \n          <figcaption><p>(Photo\/Chris Shinn)<\/p>\n<\/figcaption>\n    <\/figure>\n    \n  \n  \n\n<\/div>\n  \n\n  <\/div><\/div>\n\r\n\r\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text white\"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n        \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <div class=\"post-content2\">\nA retrospective analysis of data from the CALGB\/SWOG 80405 clinical trial revealed that in patients with metastatic colorectal cancer, the location of the primary tumor predicts the patient\u2019s response to various treatment strategies for the disease.<br \/>\nPatients with left-sided primary tumors responded significantly better to cetuximab, which had an average survival of 39 months as opposed to 32 months with bevacizumab. Conversely, patients with right-sided primary tumors responded more favorably to bevacizumab.<br \/>\n<a href=\"https:\/\/keck.usc.edu\/faculty\/heinz-josef-lenz\/\">Heinz-Josef Lenz, MD<\/a>, J. Terrence Lanni Chair in Gastrointestinal Cancer Research and professor of medicine at the Keck School of Medicine of USC, chair of the Gastrointestinal Oncology Program at USC Norris Comprehensive Cancer Center and co-chair of the SWOG 80405 clinical trial, presented the data at the European Society for Medical Oncology on Oct. 10. He also was a co-author on a paper published in <em>JAMA Oncology<\/em> online that illustrated similar findings through the CRYSTAL and FIRE-3 clinical trials.<br \/>\n\u201cThe molecular differences between left and right-sided tumors in the colon are such that they are essentially two different diseases,\u201d Lenz said. \u201cMore research is needed to determine why there is such a vast prognostic difference; but for the time being, tumor sidedness should be heavily considered when developing a treatment plan for metastatic colorectal cancer patients, and future clinical trials should first stratify participants by primary tumor location.\u201d\n<\/div>\n<div class=\"meta-info\"><\/div>\n\n\n\n<\/div>\n  <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":46,"featured_media":399,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[10,89],"class_list":["post-1395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-cancer","tag-medicine"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Analysis: Primary tumor location predicts treatment response in patients with metastatic colorectal cancer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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