New blood test could spot six gut cancers before symptoms start

This study is developing a blood test that looks for tiny genetic molecules called miRNAs, which can signal the presence of several gastrointestinal cancers like liver, pancreatic, and colorectal cancer. Researchers will analyze blood samples from 1,000 adults—half with cancer and half without—to see how accurately the test can distinguish between them. The goal is to create a noninvasive, affordable screening tool that could catch these cancers earlier, when they are easier to treat.