
First and only FDA-cleared, fully automated chromogranin A assay
There has been controversy about the utility of Chromogranin A for many years now. Specialists have been critical about its use but to be fair even those less critical still confirm that alone it would not be trusted to formally diagnose Neuroendocrine Cancer. That said, it was still controversial when certain US guidelines were updated to recommend it is not regularly tested. It's well known for being a sensitive but non-specific marker for most tumours of Neuroendocrine type, the non-specificity is mostly due to the other conditions, some of which are highly prevalent in many countries, including but not limited to the use of proton pump inhibitors, heart disease and kidney disease. Another criticism has been the lack of faith in using it to assess reaction to treatment.I have to say,…