Galleri by Grail

This is a DNA methylation test that looks for specific methylation patterns that are present in cancer cells. It is about 51% accurate overall in finding cancers and is better at finding cancers that are not detected by routine screening – as in it finds things like pancreatic cancer better than breast cancer. It picks up about 51% of cancers but when it says there is cancer present it is rarely due to a false positive test with accuracy in terms of specificity in the high 90%iles.