GPT - NSB test

The recent outbreak of the novel coronavirus disease (COVID-19) has resulted in a worldwide pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Efforts to slow the spread of the virus and to develop vaccines and treatments require SARS-CoV-2 antibody testing. To meet this need, we have developed a Gyrolab immunoassay for qualitative detection of total antibodies generated against the receptor binding domain (RBD) of the spike (S) protein of SARS-CoV-2 in human serum samples.

As biologic drugs come off-patent and biosimilar versions become available it is vital to ensure that the biosimilars have similar PK, efficacy, and safety profiles to their branded equivalents. The equivalence of biosimilars is a point of concern since the tight relationship between structure and function of biologics means that pharmacology can be affected by even minor changes during the manufacturing process. We have therefore developed a set of robust Gyrolab PK assay protocols to support the development of biosimilars from nonclinical to human clinical studies.

A key requirement in biopharmaceutical manufacturing is the development of a robust, sensitive, and high-quality bioanalytical method for the detection of impurities that inevitably carry over from the production process. These impurities can originate from the culture media or additives, from the purification process such as protein A leaching from a purification column, or from the host cells. The presence of host cell proteins (HCPs) is of particular concern, as these contaminants pose an immunogenicity reaction risk to the patients.

To assist with the development of immunoassays for bioprocess impurity analysis, we have developed robust assay protocols to determine process-related impurities in bioprocessing samples.