{"id":245496,"date":"2026-02-23T00:00:00","date_gmt":"2026-02-23T00:00:00","guid":{"rendered":"https:\/\/medgoo.com\/index.php\/2026\/02\/23\/cancer-blood-test-fails-to-catch-disease-earlier-in-major-study\/"},"modified":"2026-02-24T16:10:22","modified_gmt":"2026-02-24T16:10:22","slug":"cancer-blood-test-fails-to-catch-disease-earlier-in-major-study","status":"publish","type":"post","link":"https:\/\/medgoo.com\/index.php\/2026\/02\/23\/cancer-blood-test-fails-to-catch-disease-earlier-in-major-study\/","title":{"rendered":"Cancer Blood Test Fails to Catch Disease Earlier in Major Study"},"content":{"rendered":"<h3>\n<p>The test costs $949 and is not federally approved<\/p>\n<\/h3>\n<p><b>By I. Edwards HealthDay Reporter<\/b><br \/>\n<b><\/b><\/p>\n<p>MONDAY, Feb. 23, 2026 (HealthDay News) \u2014 A blood test designed to find cancer early did not work as hoped in a major new study, according to the company that makes it.<\/p>\n<p>The test, called Galleri, failed to lower the number of people diagnosed with late-stage cancer, its maker <a href=\"https:\/\/grail.com\/press-releases\/landmark-nhs-galleri-trial-demonstrates-a-substantial-reduction-in-stage-iv-cancer-diagnoses-increased-stage-i-and-ii-detection-of-deadly-cancers-and-four-fold-higher-cancer-detection-rate\/\">Grail<\/a> announced last week.<\/p>\n<p>The results are a blow to a fast-growing field that aims to catch cancer earlier, when treatment may be easier and more effective.<\/p>\n<p>Galleri looks for tiny shards of cancer DNA in the blood and for more than 50 types of cancer.&nbsp;<\/p>\n<p>The test has been sold in the U.S. since 2021, even though it has not been approved by the U.S. Food and Drug Administration (FDA). It costs $949, and most people pay for it out of pocket.<\/p>\n<p>Grail says it has sold nearly 500,000 tests, including more than 185,000 last year alone.<\/p>\n<p>The <a href=\"https:\/\/clinicaltrials.gov\/study\/NCT05611632\">study<\/a> followed 142,000 healthy adults ages 50 to 77 in Britain for three years. It was run with the U.K.\u2019s National Health Service.<\/p>\n<p>Some participants received the Galleri blood test. Others did not. Researchers hoped the test would find cancer earlier, at Stages 1 or 2, instead of later, when the disease is harder to treat.<\/p>\n<p>That did not happen.<\/p>\n<p>There was not a significant reduction in number of cancers diagnosed at <a href=\"https:\/\/www.healthday.com\/a-to-z-health\/cancer\/cancer-staging-and-grading-648001.html\">Stage 3<\/a> or Stage 4, Grail said. The study\u2019s main goal was to show a 20% drop in advanced cancers, but that target was missed.<\/p>\n<p>\u201cThis doesn\u2019t support rollout within the American health care system,\u201d <a href=\"https:\/\/www.icr.ac.uk\/research-and-discoveries\/find-a-researcher\/test-researcher-profile-detail\/professor-richard-houlston\">Dr. Richard Houlston<\/a>, a cancer genetics expert at the Institute of Cancer Research, told <em>The New York Times<\/em>.<\/p>\n<p>Grail executives said they were still encouraged by some results. They pointed to a drop in Stage 4 cancers and a rise in Stage 3 cases, which could mean cancers were found slightly earlier.<\/p>\n<p>\u201cIt\u2019s absolutely right to say we didn\u2019t hit the primary endpoint,\u201d said <a href=\"https:\/\/grail.com\/stories\/member\/sir-harpal-kumar\/\">Harpal Kumar<\/a>, Grail\u2019s chief scientific officer. \u201cBut what we did see was a very compelling clinical benefit here.\u201d<\/p>\n<p>Other experts? They weren&#8217;t convinced.<\/p>\n<p>The study failed \u2014 &#8220;end of story,&#8221; <a href=\"https:\/\/liberalarts.utexas.edu\/aads\/faculty\/aa77893\">Dr. Adewole Adamson<\/a>, a cancer researcher at the University of Texas at Austin, said.<\/p>\n<p>\u201cIf there was a slam dunk result, we would have seen it,\u201d he added.<\/p>\n<p>Some cancers already have reliable screening tests, like <a href=\"https:\/\/www.healthday.com\/a-to-z-health\/women-health\/mammograms-2665761805.html\">mammograms<\/a> and colonoscopies. But many deadly cancers do not, which is why Galleri raised so much hope.<\/p>\n<p>Still, experts emphasized that finding cancer earlier does not always mean people live longer. In addition, blood tests can also miss cancers or raise false alarms.<\/p>\n<p>\u201cYou\u2019ve got this thing hanging over your head, but you don\u2019t know what to do about it,\u201d said <a href=\"https:\/\/experts.umich.edu\/1960-daniel-f-hayes\">Dr. Daniel Hayes<\/a> of the Rogel Cancer Center in Ann Arbor, Michigan. He described cases where a blood test suggests cancer but scans find nothing.<\/p>\n<p>A new law allows Medicare to cover some cancer detection tests, but Galleri is not automatically covered. Grail has also applied for FDA approval.<\/p>\n<p>Experts say the failed trial could make that approval more difficult.<\/p>\n<p>These results &#8220;are really sobering for this field,\u201d Adamson added.<\/p>\n<p>After the announcement, Grail\u2019s stock dropped about 50%. Nearly all of the company\u2019s revenue comes from Galleri sales.<\/p>\n<p><strong>More information<\/strong><\/p>\n<p>Learn more about the <a href=\"https:\/\/www.galleri.com\/\">Galleri test<\/a>.<\/p>\n<p>SOURCE: <em>The New York Times<\/em>, Feb. 20, 2026<\/p>\n<p><i><\/i><br \/>\n<i>Copyright &#169; 2026 <a href=\"https:\/\/consumer.healthday.com\/\" target=\"_new\">HealthDay<\/a>. All rights reserved.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The test costs $949 and is not federally approved<\/p>\n","protected":false},"author":6,"featured_media":245977,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[11],"class_list":["post-245496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-news"],"_links":{"self":[{"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/posts\/245496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/comments?post=245496"}],"version-history":[{"count":0,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/posts\/245496\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/media\/245977"}],"wp:attachment":[{"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/media?parent=245496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/categories?post=245496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medgoo.com\/index.php\/wp-json\/wp\/v2\/tags?post=245496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}