FDA approves the Randox ConcizuTrace ELISA Companion Diagnostic (CDx)

3 Jun 2025

Product news

Randox Laboratories announced that the U.S. Food and Drug Administration (FDA) has approved the De Novo application for the company’s first Companion Diagnostic (CDx). This is a major achievement for Randox following over 3 years of innovative development and collaboration with Novo Nordisk.

The Companion Diagnostic was developed as a new option for determining the amount of medication a patient with hemophilia has received. The Randox ConcizuTrace™ ELISA (enzyme linked immunosorbent assay) is intended for the quantitative measurement of concizumab-mtci concentration in human 3.2% citrated plasma samples from hemophilia A and B patients after 4 weeks from the initiation of treatment. The measurement of the concizumab-mtci concentration is used for dose adjustment decision in accordance with the drug label.

Randox’s achievement has been aligned in supporting the accuracy of dosing being ensured by the ConcizuTrace™ ELISA assay.

The approved ConcizuTrace™ ELISA forms a part of the Global Randox ConcizuTrace™ ELISA Service Solution. The solution compiles the ConcizuTrace™ ELISA Sample Collection Kit containing all the necessary components required for collection and transportation of patient blood samples, the ConcizuTrace™ ELISA Companion Diagnostic (CDx) for sample analysis of hemophilia patients, and the ConcizuTrace™ ELISA Web Portal to manage patient testing and access patient results, as well as logistical and technical support, globally.

The complete Randox ConcizuTrace™ Service Solution ensures that with a strong network of both logistical and laboratory partners, prescribers and patients will receive their results within a 10-working day turnaround time. Testing laboratories have been recruited according to quality and technical credentials to cover global testing needs. Over the course of the collaboration, testing laboratories have become active in US, Europe and Japan as the ConcizuTrace™ ELISA assay is already approved in both regions.

For more information, visit www.randox.com

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HematologyIn Haematology / Hematology, complete blood cell counts (or full blood counts) are obtained using automated blood count analyzers to enumerate blood cell types.  Hematology also encompasses haemostasis and coagulation, thrombophilia and hemophilia, plasma viscosity and ESR analysis, hemoglobinopathies, cell morphology and haematinic measurement.ImmunologyImmunological techniques measure and characterize immune responses. Immunology kits and analysis systems often use techniques such as ELISA, radioimmunoassay (RIA) and immunodiffusion assays, Immunohistochemistry, and flow cytometry. Immunologists use equipment such as flow Cytometers, plate readers, plate washers and fluorescent microscopes.Clinical ChemistryBiochemistry (or clinical chemistry) involves the analysis of bodily fluids using chemical tests. Techniques used include HPLC, chromatography, spectroscopy, mass spectrometry, immunochemical, electrophoresis, turbidometric / spectrophotometric assay, MRI and ISE analysis. Tests are often carried out on plasma or serum but urine (urinalysis) and fecal specimens are also processed.Companion DiagnosticsCompanion diagnostics are tests, often <i>in vitro</i>, that are used to determine whether a therapeutic product will be safe and effective for use on an individual. They also identify which patients will benefit most from them. Companion diagnostic tests are often developed in conjunction with the pharmaceutical industry.Hemophilia
Randox ConcizuTrace™ approved as companion diagnostic test