This new blood test can detect multiple types of cancer
Researchers have discovered a new kind of blood test in development which is capable of screening for a number of types of cancer. When applied to nearly 3,600 blood samples - some from patients with cancer, some from people who had not been diagnosed with cancer at the time of the blood draw - the test successfully picked up a cancer signal from the cancer patient samples, and correctly identified the tissue from where cancer began. "Our previous work indicated that methylation-based assays outperform traditional DNA-sequencing approaches to detecting multiple forms of cancer in blood samples," said the study's lead author, Geoffrey Oxnard, MD, of Dana-Farber. Study methodology In the study, investigators analyzed cell-free DNA in 3,583 blood samples, including 1,530 from patients diagnosed with cancer and 2,053 from people without cancer. The patient samples comprised more than 20 types of cancer, including hormone receptor-negative breast, colorectal, esophageal, gallbladder, gastric, head and neck, lung, lymphoid leukemia, multiple myeloma, ovarian, and pancreatic cancer.
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