Common Variable Immunodeficiency Clinical Trial
Official title:
Vaccine-induced SARS-CoV-2-specific T Cell Responses in Patients With Primary Immune Deficiency Disease
The goal of our study is to assess the cellular immune responses of participants with antibody deficiency disease before and after immunization with SARS-CoV-2 mRNA vaccines.
Individuals with primary and secondary antibody immunodeficiency are at higher risk for severe COVID-19 disease. Humoral immunity is thought to be the predominant protection against COVID-19, however mRNA vaccines have been shown to elicit both antibody and cellular responses. The goal of our study is to assess the cellular immune responses of participants with antibody deficiency diseases, including X-linked agammaglobulinemia (XLA), common variable immunodeficiency (CVID), and secondary hypogammaglobulinemia, before and after immunization with SARS-CoV-2 mRNA vaccines. Our aim is to examine SARS-CoV-2 spike-specific T cell immune responses before and after immunization with mRNA vaccines in a cohort of individuals with antibody deficiencies compared to healthy volunteers. Our secondary objectives include (1) detecting cellular immune response differences between immunized and infected participants, (2) observing cellular immune responses over time, and (3) comparing clinical outcomes between vaccination, infection, and underlying antibody deficiency. The results will show whether antibody deficiency individuals can mount T cell responses to SARS-CoV-2 vaccination or infection, data that are expected to inform health policy of SARS-CoV-2 implementation in immunocompromised individuals. Findings will further provide foundation for larger cohort studies of SARS-CoV-2 vaccination in other immunocompromised populations. ;
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