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Clinical Trial Summary

DESIGN Observational epidemiological study AIMS - To determine: 1. The proportion of immunosuppressed people who have detectable SARS-CoV-2 antibodies following a primary vaccine course (3 doses), and the demographic, disease, and treatment characteristics that influence antibody status. 2. If the detection of antibodies inversely correlates with subsequent risk of severe acute respiratory syndrome coronavirus-2 infection and/or severity of disease in immunosuppressed people.


Clinical Trial Description

The aim of this proposal is to assess at a population level; 1) the proportion of immunosuppressed people who have detectable SARS-CoV-2 antibodies following a primary vaccine course (3 doses), and the sociodemographic, disease, and treatment characteristics that influence antibody status; 2) if the detection of antibodies inversely correlates with subsequent risk of SARS-CoV2 infection and/or severity of disease in immunosuppressed individuals. The investigators aim to target patient groups least likely to mount an immune response to vaccination; a) solid organ transplant recipients; b) patients with a rare autoimmune disease c) patients with haematological malignancies, specifically lymphoid malignancies. The investigators will use comprehensive registries to identify and recruit patients from these groups, and utilise the existing linkages these registries already have to obtain COVID-19 outcome information. The investigators hypothesise that a sizeable proportion of immunosuppressed people will have no detectable SARS-CoV-2 antibodies following a three vaccine doses, and that this cohort is particularly susceptible to SARS-CoV-2 infection and death. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05148806
Study type Observational
Source Imperial College London
Contact
Status Completed
Phase
Start date December 7, 2021
Completion date December 30, 2022

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