Diagnosing Cancer Earlier Than Ever. The tests didn't stop there. After getting ahold of older blood samples – between 3.1 and 3.5 years – for 6 of the 8 positive participants, researchers ...

The test kit from Craif Inc., a spin-off from Nagoya University founded in 2018, can also be used to assess simultaneously whether a person is at risk from any of up to seven types of cancer.

These are men, he said, who are screened year after year with the PSA, a blood test that can pick up signs of prostate cancer. Year after year, their PSA is very low. Then, suddenly, it soars.