ANTIBODY RESPONSE TO THE COVID-19 CHADOX1NCOV-19 (ASTRA ZENECA) AND BNT162B (PFIZER) VACCINES AFTER TEMPORARY SUSPENSION OF DMARD THERAPY IN IMMUNE MEDIATED INFLAMMATORY DISEASE (IMID)

Ai Tran

Research output: ThesisMaster's Thesis

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Abstract

This study evaluated the antibody responses to the AstraZeneca and Pfizer COVID-19 vaccines in patients with immune ­mediated inflammatory diseases (IMIDs) on disease-modifying antirheumatic drugs (DMARDs). It compares the effects of continuing versus withholding DMARD therapy post-vaccination. Results indicate that withholding conventional synthetic DMARDs (csDMARD) and targeted DMARDs (tsDMARD) improves seroconversion rates, with those over age 60 benefiting most from pausing csDMARDs. Six months post-vaccination, most remained seropositive, with Pfizer vaccine recipients showing longer antibody persistence. A booster dose restored immunity across all groups, suggesting that pausing certain DMARDs around vaccination enhances immune response, with the Pfizer vaccine offering longer-lasting protection.
Original languageEnglish
QualificationMasters
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • Nossent, Hans, Supervisor
  • Ding, Nik, Supervisor, External person
  • Bell, Damon, Supervisor
Thesis sponsors
Award date17 Feb 2024
DOIs
Publication statusUnpublished - 2023

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