ClearNote Health

ClearNote Health is a San Diego molecular diagnostics company building non-invasive, blood-based tests that detect high-mortality cancers early, when treatment works best. Spun out of Stephen Quake's Stanford lab in 2016 (originally as Bluestar Genomics), it pairs a proprietary 5-hydroxymethylcytosine (5hmC) epigenomic platform with cell-free DNA analysis and machine learning. Its flagship Avantect Pancreatic Cancer Test targets high-risk patients - including adults 50+ newly diagnosed with type 2 diabetes - and the company is extending the approach to ovarian and multi-cancer detection.