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Multicancer Early Detection Blood Tests Are Feasible

Medically reviewed by Drugs.com.

By Elana Gotkine HealthDay Reporter

FRIDAY, Oct. 6, 2023 -- Multicancer early detection (MCED) blood tests are feasible for detecting cancer, according to a study published online Oct. 5 in The Lancet.

Deb Schrag, M.D., from the Memorial Sloan Kettering Cancer Center in New York City, and colleagues conducted a prospective cohort study to examine the feasibility of MCED testing for cancer screening in a convenience sample of adults aged 50 years or older without signs or symptoms of cancer. A total of 6,662 participants were recruited between Dec. 12, 2019, and Dec. 4, 2020; 6,621 had analyzable results.

The researchers detected a cancer signal in 1.4 percent of participants with analyzable results. Of these, 38 percent were diagnosed with cancer (true positives) and 62 percent had no cancer diagnosis (false positives). The median time to diagnostic resolution was 79 days: 57 and 162 days in true-positive and false-positive participants, respectively. Most of the participants had laboratory tests (79 and 88 percent with true-positive and false-positive results, respectively) and imaging (91 and 93 percent, respectively). In participants with false-positive results, fewer procedures were conducted than in those with true-positive results (30 versus 82 percent).

"Although this study establishes clinical feasibility of MCED testing, forthcoming results of larger studies will be required to show clinical utility and effects on cancer mortality," the authors write.

Several authors disclosed ties to biotechnology and pharmaceutical companies, including GRAIL, which funded the trial.

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Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2024 HealthDay. All rights reserved.

Posted October 2023

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