Article ; Online: Breakthrough COVID-19 After Tixagevimab/Cilgavimab Among Patients With Systemic Autoimmune Rheumatic Diseases.
2024 Volume 51, Issue 3, Page(s) 305–312
Abstract: Objective: To determine the incidence and baseline factors associated with breakthrough coronavirus disease 2019 (COVID-19) after preexposure prophylaxis (PrEP) with tixagevimab/cilgavimab among patients with systemic autoimmune rheumatic diseases ( ... ...
Abstract | Objective: To determine the incidence and baseline factors associated with breakthrough coronavirus disease 2019 (COVID-19) after preexposure prophylaxis (PrEP) with tixagevimab/cilgavimab among patients with systemic autoimmune rheumatic diseases (SARDs). Methods: We performed a retrospective cohort study among patients with SARDs who received tixagevimab/cilgavimab between January 2, 2022, and November 16, 2022. The primary outcome was breakthrough COVID-19 after tixagevimab/cilgavimab. We performed multivariable Cox regression models adjusted for baseline factors to identify risk factors for breakthrough COVID-19. Results: We identified 444 patients with SARDs who received tixagevimab/cilgavimab (mean age 62.0 years, 78.2% female). There were 83 (18.7%) breakthrough COVID-19 cases (incidence rate 31.5/1000 person-months, 95% CI 24.70-38.24), 7 (1.6%) hospitalizations, and 1 (0.2%) death. Older age was inversely associated with breakthrough COVID-19 (adjusted hazard ratio [aHR] 0.86/10 years, 95% CI 0.75-0.99). Higher baseline spike antibody levels were associated with lower risk of breakthrough COVID-19 (aHR 0.42, 95% CI 0.18-0.99 for spike antibody levels > 200 vs < 0.4 units). CD20 inhibitor users had a similar risk of breakthrough COVID-19 (aHR 1.05, 95% CI 0.44-2.49) compared to conventional synthetic disease-modifying antirheumatic drug (DMARD) users. Conclusion: We found that patients with SARDs had frequent breakthrough COVID-19, but the proportion experiencing severe COVID-19 was low. DMARD type, including CD20 inhibitors, did not significantly affect risk of breakthrough COVID-19. Evidence of prior humoral immunity was protective against breakthrough infection, highlighting the continued need for a multimodal approach to prevent severe COVID-19 as novel PrEP therapies are being developed. |
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MeSH term(s) | Humans ; Female ; Middle Aged ; Male ; COVID-19 ; Retrospective Studies ; Antirheumatic Agents/therapeutic use ; Rheumatic Diseases/complications ; Rheumatic Diseases/drug therapy ; Antibodies, Monoclonal |
Chemical Substances | cilgavimab (1KUR4BN70F) ; tixagevimab ; Antirheumatic Agents ; Antibodies, Monoclonal |
Language | English |
Publishing date | 2024-03-01 |
Publishing country | Canada |
Document type | Journal Article |
ZDB-ID | 194928-7 |
ISSN | 1499-2752 ; 0315-162X |
ISSN (online) | 1499-2752 |
ISSN | 0315-162X |
DOI | 10.3899/jrheum.2023-0742 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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