Publications & Posters

Performance Evaluation Of Three Platforms With Ultrasensitive Ligand-binding Assay Potential


Cowan KJ, Geiger A, Hornauer H, Rourick R, Siguenza PY
DOI: 10.4155/bio-2017-0024



We evaluated three immunoassay-based technologies and their biomarker kits, by determining precision, parallelism and detectability of analytes of interest.

Materials & Methods:

We compared ultrasensitive assays for three biomarkers: interleukins IL-6, IL-13 and IL-17A using kits obtained from Roche (IMPACT platform – proprietary platform), Singulex (Erenna®) and Quanterix (Simoa™). We defined the true LLOD as the LLOQs, and provided disease-specific parallelism results and detectability levels for endogenous analyte, which were good across platforms, though they varied from analyte to analyte.


We highlight a simplified approach employed for evaluating ultrasensitive kits and provide an overview of the methodologies used to compare available assays. All three platforms are able to detect very low-level analytes. We recommend all three platforms for detection of very low-level analytes.