A multigenomic liquid biopsy biomarker for neuroendocrine tumor disease outperforms CgA and has surgical and clinical utility.

Published on Aug 11, 2021in Annals of Oncology18.274
· DOI :10.1016/J.ANNONC.2021.08.1746
I.M. Modlin (Yale University), M. Kidd + 8 AuthorsLisa Bodei25
Estimated H-index: 25
(MSK: Memorial Sloan Kettering Cancer Center)
Background null Biomarkers are key tools in cancer management. In neuroendocrine tumors (NETs), Chromogranin A (CgA) was considered acceptable as a biomarker. We compared the clinical efficacy of a multigenomic blood biomarker (NETest) to CgA over a 5-year period. null null null Patients and methods null An observational, prospective, cross-sectional, multicenter, multinational, comparative cohort assessment. Cohort 1: NETest evaluation in NETs (n = 1684) and cancers, benign diseases, controls (n = 731). Cohort 2: (n = 1270): matched analysis of NETest/CgA in a sub-cohort of NETs (n = 922) versus other diseases and controls (n = 348). Disease status was assessed by response evaluation criteria in solid tumors (RECIST). NETest measurement: qPCR [upper limit of normal (ULN: 20)], CgA (EuroDiagnostica, ULN: 108 ng/ml). Statistics: Mann-Whitney U-test, AUROC, chi-square and McNemar' test. null null null Results null Cohort 1: NETest diagnostic accuracy was 91% (P null 94% versus CgA 11%. null null null Conclusion null NETest accurately diagnoses NETs and is an effective surrogate marker for imaging, grade, metastases and disease status compared to CgA. A multigenomic liquid biopsy is an accurate biomarker of NET disease.
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