A California company called GRAIL has developed a blood test, Galleri, that can catch hard-to-detect, aggressive, and often deadly cancers like pancreatic, ovarian, and esophageal. Human blood contains a DNA signature; This test tracks the DNA a cancer cell sheds. “We can find and sequence these tiny bits of tumor-derived DNA in the blood and, based on the patterns we see, we can reveal if there is a cancer cell present. We can predict with very high accuracy where in the body this cancer signal is coming from,” said Dr. Julia Feygin, who works on the GRAIL team. Although the test has not received full FDA approval yet, it is available by prescription only. “In the year 2021, this is so far beyond anything else we’ve been able to do. This is a game changer,” said Dr. Greg Plotnikoff. Who offers the test at his practice in Minneapolis.

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