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  • Blood test for cancer...

Blood test for cancer accurate enough for disease screening: Study

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-07-12T09:00:59+05:30  |  Updated On 12 July 2021 1:12 PM IST
Blood test for cancer accurate enough for disease screening: Study
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The multi-cancer detection test, if used alongside existing screening tests, could have a profound impact on how cancer is detected and, ultimately, on public health.

USA: A simple blood test that can detect 50 types of cancer is accurate enough to be used as a screening test for older people, finds a recent study in the journal Annals of Oncology. It can detect cancer before any signs or symptoms appear, and has a low false-positive rate -- just 0.5%.

According to the study, the test could detect cancers with a high level of accuracy. It's intended for people at greater risk of cancer over the age of 50.

Scientists conducting the study ran tests on 2,800 volunteers who have cancer and 1,200 who don't. They said the test accurately identified when cancer was present at all stages and classes almost 52% of the time.

Also Read: Shorter intervals of ultrasound screening helps in early detection of liver cancer: JAMA

Developed by U.S.-based Grail, the test looks for chemical changes in genetic code that leak from tumors into the bloodstreams. Some aggressive cancers, like pancreatic and esophageal, are more likely than others to shed more into the blood.

Dr. Eric Klein, chairman of the Glickman Orulogical and Kidney Institute at Cleveland Clinic and first author, said that finding cancer early is "one of the most significant opportunities we have to reduce the burden of cancer.

"These data suggest that, if used alongside existing screening tests, the multi-cancer detection test could have a profound impact on how cancer is detected and, ultimately, on public health."

NHS England, Britain's national healthcare system, will conduct a pilot for the test this fall. It will include about 140,000 volunteers and results are expected by 2023.

Also Read: Centralized lung cancer screening programs improve adherence: JAMA

Reference:

The study titled, "Clinical validation of a targeted methylation-based multi-cancer early detection test using an independent validation set," is published in the Annals of Oncology.

DOI: https://www.annalsofoncology.org/article/S0923-7534(21)02046-9/fulltext


annals of oncologycancerblood testcancer screening
Source : Annals of Oncology
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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