{"id":3212,"date":"2018-04-04T03:11:46","date_gmt":"2018-04-04T08:11:46","guid":{"rendered":"https:\/\/issels.com\/blog\/?p=3212"},"modified":"2018-03-27T22:15:42","modified_gmt":"2018-03-28T03:15:42","slug":"liquid-biopsy-test-for-cancer-has-problematic-accuracy-results","status":"publish","type":"post","link":"https:\/\/issels.com\/blog\/2018\/04\/04\/liquid-biopsy-test-for-cancer-has-problematic-accuracy-results\/","title":{"rendered":"Liquid Biopsy Test for Cancer Has Problematic Accuracy Results"},"content":{"rendered":"<figure id=\"attachment_2220\" aria-describedby=\"caption-attachment-2220\" style=\"width: 214px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2220\" src=\"https:\/\/issels.com\/blog\/wp-content\/uploads\/2015\/11\/MP9003211701-214x300.jpg\" alt=\"Liquid Biopsy Test for Cancer Has Problematic Accuracy Results\" width=\"214\" height=\"300\" srcset=\"https:\/\/issels.com\/blog\/wp-content\/uploads\/2015\/11\/MP9003211701-214x300.jpg 214w, https:\/\/issels.com\/blog\/wp-content\/uploads\/2015\/11\/MP9003211701.jpg 428w\" sizes=\"auto, (max-width: 214px) 100vw, 214px\" \/><figcaption id=\"caption-attachment-2220\" class=\"wp-caption-text\">Liquid Biopsy Test for Cancer Has Problematic Accuracy Results<\/figcaption><\/figure>\n<p>Early detection improves the chances of successful <a href=\"http:\/\/issels.com\/\" target=\"_blank\" rel=\"noopener\">cancer treatment<\/a>, so recent news of a <a href=\"https:\/\/www.cnn.com\/2018\/02\/13\/opinions\/liquid-biopsy-opinion-welch\/index.html\" target=\"_blank\" rel=\"noopener\">&#8220;liquid biopsy&#8221;<\/a> has encouraged the medical community. Unfortunately, the test is showing unacceptable levels of accuracy, leaving the procedure a long way from any real-world applications.<\/p>\n<p><strong>Controlled vs. Real World Conditions<\/strong><\/p>\n<p><a href=\"https:\/\/issels.com\/blog\/2018\/03\/14\/new-blood-test-created-by-johns-hopkins-to-screen-for-eight-cancers\/\" target=\"_blank\" rel=\"noopener\">CancerSEEK<\/a> uses a blood sample for a battery of tests to measure tumor biomarkers and identify cancer-associated DNA mutations. During clinical studies, researchers obtained some promising results.<\/p>\n<p>By the team&#8217;s own admission, the conditions were optimized to facilitate detection of cancer. Even so, most of the cancers detected were late-stage while the goal of screening was to find <a href=\"https:\/\/issels.com\/blog\/2017\/11\/15\/immunotherapy-and-its-use-in-stage-2-and-3-cancers\/\" target=\"_blank\" rel=\"noopener\">cancer in the early stages<\/a>.<\/p>\n<p>Accuracy problems in less-controlled environments became more clear in a 2017 study involving 40 prostate cancer patients who underwent liquid biopsies to fine-tune their therapy programs. Each sample was sent to two different labs with similar technology, but the results differed for more than half of the patients.<\/p>\n<p><strong>Are Liquid Biopsies the Answer?<\/strong><\/p>\n<p>Researchers are also questioning the full value of a positive result. While the test may detect the presence of cancer, it gives no clues as to the location of the tumor, unlike <a href=\"https:\/\/issels.com\/blog\/2017\/06\/19\/be-in-the-know-american-cancer-societys-cancer-screening-guidelines\/\" target=\"_blank\" rel=\"noopener\">traditional screenings<\/a> such as mammograms and CT scans.<\/p>\n<p>Scientists will no doubt continue to study the science behind liquid biopsies, as detection of circulating tumor DNA can have other applications. The question remains whether liquid biopsies have a viable future as useful cancer screening.<\/p>\n<p><strong>Personalized Cancer Treatment at Issels\u00ae<\/strong><\/p>\n<p>We use a variety of specialized non-invasive standard and genomic diagnostic tests to create the <a href=\"http:\/\/issels.com\/treatment-summary\/comprehensive-core-treatment\/\" target=\"_blank\" rel=\"noopener\">cancer treatment<\/a> that&#8217;s right for you. <a href=\"http:\/\/66.135.32.155\/issels\/Questionnaire\/request-issels-info.aspx\" target=\"_blank\" rel=\"noopener\">Contact us<\/a> for more information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Early detection improves the chances of successful cancer treatment, so recent news of a &#8220;liquid biopsy&#8221; has encouraged the medical community. Unfortunately, the test is showing unacceptable levels of accuracy, leaving the procedure a long way from any real-world applications. Controlled vs. Real World Conditions CancerSEEK uses a blood sample for a battery of tests &hellip; <a href=\"https:\/\/issels.com\/blog\/2018\/04\/04\/liquid-biopsy-test-for-cancer-has-problematic-accuracy-results\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Liquid Biopsy Test for Cancer Has Problematic Accuracy Results<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[203,580,2],"tags":[212,252,500,224,543],"class_list":["post-3212","post","type-post","status-publish","format-standard","hentry","category-cancer-research","category-cancer-treatment","category-news","tag-cancer-research","tag-cancer-research-advancement","tag-cancer-screening","tag-cancer-treatment","tag-liquid-biopsy"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/posts\/3212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/comments?post=3212"}],"version-history":[{"count":2,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/posts\/3212\/revisions"}],"predecessor-version":[{"id":3223,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/posts\/3212\/revisions\/3223"}],"wp:attachment":[{"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/media?parent=3212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/categories?post=3212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/issels.com\/blog\/wp-json\/wp\/v2\/tags?post=3212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}