{"version":"1.0","provider_name":"Best Cancers Hospitals","provider_url":"https:\/\/www.cancershospitals.com\/blog","author_name":"drcancer","author_url":"https:\/\/www.cancershospitals.com\/blog\/author\/drcancer\/","title":"Companion diagnostic: Definition, Uses, and Clinical Overview - Best Cancers Hospitals","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EZBbNEijXh\"><a href=\"https:\/\/www.cancershospitals.com\/blog\/companion-diagnostic-definition-uses-and-clinical-overview\/\">Companion diagnostic: Definition, Uses, and Clinical Overview<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.cancershospitals.com\/blog\/companion-diagnostic-definition-uses-and-clinical-overview\/embed\/#?secret=EZBbNEijXh\" width=\"600\" height=\"338\" title=\"&#8220;Companion diagnostic: Definition, Uses, and Clinical Overview&#8221; &#8212; Best Cancers Hospitals\" data-secret=\"EZBbNEijXh\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.cancershospitals.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"A Companion diagnostic is a medical test used to help guide the use of a specific cancer treatment. It looks for a biomarker (a measurable feature such as a gene change or protein level) that predicts whether a therapy is more or less likely to help. It is most commonly used in precision oncology, where treatments are matched to tumor biology. It may be performed on tumor tissue, blood, or sometimes other samples, depending on the cancer and test."}