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Clinical Trial Summary

Currently, the efficacy of COVID-19 vaccination in immunodeficient patients is unknown. Here the investigators aim to evaluate the efficacy of COVID-19 vaccines in immunodeficient patients compared to healthy controls. The investigators will assess the humoral and cellular response to COVID-19 vaccination in these subjects in detail. Furthermore, factors associated with good response to vaccination will be identified. The results of this study will help to guide future recommendations on COVID-19 vaccination in this population.

Clinical Trial Description

The total duration of the study is 38 months, starting in March 2021 with a recruiting period until 31. December 2021 and termination of all scheduled visits until 31 May 2024. Individuals having consented and fulfilling the inclusion and exclusion criteria are included in the trial. A baseline visit will take place up to 60 days before the planned date of vaccination according to the Austrian vaccination plan. Scheduled vaccination with any COVID-19 vaccine approved in Austria will allow recruitment. If appropriate pre-vaccine samples from study participants exist in the biobank of the Medical University of Graz, patients may also be included in the study after vaccination starting with visit 3. In this case the biomaterial available at the biobank will be used for the analyses planned on visit 1. The investigators will not influence the date of vaccination or the type of the vaccine used. After first vaccination a telephone visit (visit 2) will assess adverse events and schedule visit 3 at the appropriate time after the second vaccination. At visit 3 the patient's vaccination certificate will be checked to verify correct vaccination and document the type of vaccine received. Further visits (5-6) will be performed for up to two years after the second vaccination. This follow-up period will allow an assessment of the duration of the immune response. The data recorded directly on the Case Report Form (CRF) are considered to be source data. COVID-19 vaccination, COVID-19 infection, Vaccination history, Pregnancy test, Adverse Events, BMI (Body Mass Index), and Laboratory Specimen Collection are recorded directly on the CRF and therefore are considered to be source data. Data will be merged in an electronic database (RDA Research, Documentation & Analysis; Medical University of Graz, version 07.03.2019). Case Report Forms (CRFs) will be inspected in respect of their accuracy and completeness and compared to original data by the monitor. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT04858607
Study type Observational
Source Medical University of Graz
Contact Martin Stradner, Prof.
Phone +43316385
Email [email protected]
Status Recruiting
Start date April 19, 2021
Completion date May 2024

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