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Clinical Trial Summary

This study aims to validate dried blood spots (DBS) for SARS-CoV-2 (Severe Acute Respiratory Syndrome 2) antibody detection in elderly individuals.


Clinical Trial Description

In the current SARS-CoV-2 pandemic, testing for SARS-CoV-2 specific antibodies is paramount to monitor immune responses in post-authorization vaccination and sero-epidemiology studies. However, large scale and iterative serological testing by venipuncture in older persons can be challenging. Capillary blood sampled using a finger prick and collected on protein saver cards, i.e., dried blood spots (DBS), has already proven to be a promising alternative. However, elderly persons have a reduced cutaneous microvasculature, which may affect DBS-based antibody testing. Therefore, we aimed to evaluate the performance of DBS for the detection of SARS-CoV-2 antibodies in nursing homes residents. We collected venous blood and paired Whatman and EUROIMMUN DBS from nursing home residents, and from staff as a reference population. Venous blood samples were analyzed for the presence of SARS-CoV-2 IgG antibodies using the Abbot chemiluminescent microparticle immunoassay (CMIA). DBS were analyzed by the EUROIMMUN enzyme-linked immuno sorbent assay (ELISA) for SARS-CoV-2 IgG antibodies. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04880122
Study type Interventional
Source University Ghent
Contact
Status Completed
Phase N/A
Start date August 1, 2020
Completion date September 30, 2020

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