- Diagnostics
- 2 min read
Roche receives FDA Emergency Use Authorization for new test to measure the level of SARS-CoV-2 antibodies
Elecsys® Anti-SARS-CoV-2 S test specifically detects antibodies against the SARS-CoV-2 spike protein. The spike protein is the target of many Covid-19 vaccines in development. This test may help identify recovering patients who could potentially be serum and plasma donors for developing treatments for Covid-19
The new test targets antibodies that are directed against the region of the novel coronavirus known as the spike protein, specifically the area that enables the virus to bind to a host cell receptor, which is required for the virus to enter the host cell.1,2 Many current candidate vaccines aim to induce an antibody response against the SARS-CoV-2 spike protein. Tests that quantify antibodies to the spike protein could be used to measure the level of that response and track that measurement over time. The test provides a numerical result describing the concentration of antibodies from 0.40-250 U/mL as well as a qualitative result.
“Since the start of this pandemic, our focus has been to bring effective diagnostic testing solutions to the fight against Covid-19,” said Thomas Schinecker, CEO of Roche Diagnostics. “Antibody tests like these will play a critical role in measuring a person’s vaccine-induced immune response”.
In addition to its role in helping to measure a patient’s immune response, the test may help guide the allocation of plasma donations from recovered Covid-19 patients to current patients by identifying donors that have antibodies to SARS-CoV-2 virus. Convalescent plasma therapy is an investigational procedure that separates and removes the plasma from a patient’s blood. This plasma is then replaced with plasma from a donor to give the ill patient antibodies to help fight the virus.
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