SANTA CLARA, Calif. – It has never been easy to get payers to reimburse in a timely and adequate fashion for novel diagnostics, making it notoriously difficult to build a business from them. But a few high-flying diagnostics companies, such as Madison, Wis.-based Exact Sciences Corp. and Redwood City, Calif.-based Guardant Health Inc., have been blazing the trail recently on how to rapidly scale up to become valuable commercial entities from origins as a research-based startup.

SANTA CLARA, Calif. – Just as it does with treatments, the National Comprehensive Cancer Network (NCCN) offers detailed guidelines on genomic testing by cancer type. These are key in determining what physicians can prescribe routinely and what insurers will cover. But those guidelines aren’t followed regularly outside a major research hospital setting, thereby obviating access to tumor genetic information that could help to better guide treatment. Even if current guidelines are followed, physicians and patients can get information back from the tests that neither party is prepared to process.