The procedure is based on multivariant analysis of amino acids in plasma and might be able to differentiate for various types of cancer onset (prostate, breast, colon, stomach, lung)
Ajinomoto press release, https://www.ajinomoto.com/en/presscenter/press/detail/g2011_09_08.html
Ajinomoto examines the use of its Amino Index for the early detection of cancer