Context: Therapeutic plasma exchange is an extracorporeal blood purification technique that removes pathogenic substances (including antibodies) from plasma. This technique also combines an immunomodulatory effect. The impact on the anti-SARS-CoV-2 titre and the humoral and cellular responses in the general population benefiting from therapeutic plasma exchanges is not known at this time. The purpose of this study is to evaluate the evolution of anti-SARS-CoV-2 antibodies' titre over time in vaccinated adult patients treated with therapeutic plasma exchange. Research question and associated variables: Prospective non-drug interventional study on the possible variation of anti-SARS-CoV-2 antibody titre in adult patients regularly treated with therapeutic plasma exchange. Study population: any adult patient vaccinated against SARS-CoV-2 (any type of vaccine) and regularly receiving therapeutic plasma exchange in the adult hematology department of the Cliniques universitaires Saint Luc in Brussels, Belgium. Number of subjects expected to be enrolled: 10-15
Not provided
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
15
For each patient included in this study, 3 blood samples of 5 ml(serum) will be collected at well-defined time points: at the beginning of an TPE session, at the end of the same session, and at the beginning of the consecutive TPE session.
Cliniques universitaires Saint-Luc
Brussels, International, Belgium
Analysis of the variation of the anti-SARS-CoV-2 antibodies with plasma exchange procedures
Evolution of anti-SARS-CoV-2 antibodies titre over time in vaccinated adult patients treated with TPE.
Time frame: 3 months
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