Paxlovid use is associated with lower risk of cardiovascular diseases in COVID-19 patients with autoimmune rheumatic diseases: a retrospective cohort study.

Background Paxlovid has been shown to be efective in reducing mortality and hospitalization rates in patients with coronavirus disease 2019 (COVID-19). It is not known whether Paxlovid can reduce the risk of cardiovascular diseases (CVD) in COVID-19-surviving patients with autoimmune rheumatic diseases (AIRDs). Methods TriNetX data from the US Collaborative Network were used in this study. A total of 5,671,395 patients with AIRDs were enrolled between January 1, 2010, and December 31, 2021. People diagnosed with COVID-19 were included in the cohort (n=238,142) from January 1, 2022, to December 31, 2022. The Study population was divided into two groups based on Paxlovid use. Propensity score matching was used to generate groups with matched baseline characteristics. The hazard ratios (HRs) and 95% confdence intervals of cardiovascular outcomes, admission rate, mortality rate, and intensive care unit (ICU) admission rate were calculated between Paxlovid and non-Paxlovid groups. Subgroup analyses on sex, age, race, autoimmune diseases group, and sensitivity analyses for Paxlovid use within the frst day or within 2-5 days of COVID-19 diagnosis were performed. Results Paxlovid use was associated with lower risks of cerebrovascular complications (HR=0.65 [0.47-0.88]), arrhythmia outcomes (HR=0.81 [0.68-0.94]), ischemic heart disease, other cardiac disorders (HR=0.51 [0.35-0.74]) naming heart failure (HR=0.41 [0.26-0.63]) and deep vein thrombosis (HR=0.46 [0.24-0.87]) belonging to thrombotic disorders in AIRD patients with COVID-19. Compared with the Non-Paxlovid group, risks of major adverse cardiac events (HR=0.56 [0.44-0.70]) and any cardiovascular outcome mentioned above (HR=0.76 [0.66-0.86]) were lower in the Paxlovid group. Moreover, the mortality (HR=0.21 [0.11-0.40]), admission (HR=0.68 [0.60-0.76]), and ICU admis‑ sion rates (HR=0.52 [0.33-0.80]) were signifcantly lower in the Paxlovid group than in the non-Paxlovid group. Pax‑ lovid appears to be more efective in male, older, and Black patients with AIRD. The risks of cardiovascular outcomes and severe conditions were reduced signifcantly with Paxlovid prescribed within the frst day of COVID-19 diagnosis. Conclusions Paxlovid use is associated with a lower risk of CVDs and severe conditions in COVID-19-surviving patients with AIRD. [ABSTRACT FROM AUTHOR]