Renin-Angiotensin System-Modifying Antihypertensive Drugs Can Reduce the Risk of Cardiovascular Complications in

Chelsie Hurst1, Maira Soto1, Ernest R Vina2

  • 1Department of Pharmacology, Center for Innovation in Brain Science, College of Medicine, University of Arizona, Tucson.

Insights

Renin-angiotensin system (RAS) drugs significantly lower cardiovascular disease risk in patients with systemic lupus erythematosus. These findings support RAS-modifying therapies for hypertension management in lupus patients.

Area of Science:

  • Cardiology
  • Rheumatology
  • Pharmacology

Background:

  • Patients with systemic lupus erythematosus (SLE) face a higher risk of cardiovascular disease (CVD) compared to the general population.
  • Antihypertensive drugs targeting the renin-angiotensin system (RAS) are crucial for managing lupus nephritis and may offer additional cardiovascular benefits through anti-inflammatory effects.
  • This study investigates the comparative impact of RAS-modifying versus non-RAS antihypertensive drugs on CVD incidence in SLE patients.

Purpose of the Study:

  • To compare the incidence of cardiovascular disease in patients with systemic lupus erythematosus treated with renin-angiotensin system (RAS) modifying drugs versus non-RAS drugs.
  • To evaluate the potential of RAS-modifying therapies to mitigate cardiovascular risk in SLE patients, considering their renal and extrarenal effects.

Main Methods:

  • A large medical insurance claims dataset was utilized, identifying 220,168 patients with lupus.
  • A cohort of 31,647 eligible patients (4,018 on RAS drugs, 27,629 on non-RAS drugs) was selected, with propensity score matching applied to balance demographic data, risk factors, and comorbidities.
  • The mean age of patients was 46.1 years, with 93.0% being female and 96.9% having a Charlson Comorbidity Index score of 0-4, indicating a generally healthy cohort.

Main Results:

  • RAS-modifying drugs were associated with a reduced relative risk (RR) of cardiovascular disease diagnosis (RR 0.80; 95% CI, 0.74-0.87), with a more pronounced effect after propensity score matching (RR 0.62; 95% CI, 0.57-0.68).
  • This risk reduction was consistent across patients with and without lupus nephritis.
  • RAS-modifying therapies significantly improved 5-year cardiovascular disease-free survival probability (86.0% vs 78.3%).

Conclusions:

  • Renin-angiotensin system (RAS)-modifying drugs demonstrate a significant reduction in cardiovascular disease risk among patients with systemic lupus erythematosus.
  • These findings suggest that RAS-modifying therapies are a valuable option for hypertension management in SLE patients, potentially impacting clinical decision-making.
  • The study highlights the dual benefit of RAS-modifying drugs in managing both renal and cardiovascular complications in SLE.
Abstract

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