Abstract
Background
Patients with chronic kidney disease (CKD) are at high risk for developing cardiovascular events. However, limited evidence is available regarding the use of aspirin in CKD patients to decrease cardiovascular risk and to slow renal disease progression.
Study Design
Prospective, multicenter, open-label randomized controlled trial.
Setting and Participants
One hundred eleven patients with estimated glomerular filtration rate (eGFR) 15–60 ml/min/1.73 m2 without previous cardiovascular events.
Intervention
Aspirin treatment (100 mg/day) (n = 50) or usual therapy (n = 61). Mean follow-up time was 64.8 ± 16.4 months.
Outcomes
The primary endpoint was composed of cardiovascular death, acute coronary syndrome (nonfatal MI, coronary revascularization, or unstable angina pectoris), cerebrovascular disease, heart failure, or nonfatal peripheral arterial disease. Secondary endpoints were fatal and nonfatal coronary events, renal events (defined as doubling of serum creatinine, ≥ 50% decrease in eGFR, or renal replacement therapy), and bleeding episodes.
Results
During follow-up, 17 and 5 participants suffered from a primary endpoint in the control and aspirin groups, respectively. Aspirin did not significantly reduce primary composite endpoint (HR, 0.396 (0.146–1.076), p = 0.069. Eight patients suffered from a fatal or nonfatal coronary event in the control group compared to no patients in the aspirin group. Aspirin significantly reduced the risk of coronary events (log-rank, 5.997; p = 0.014). Seventeen patients in the control group reached the renal outcome in comparison with 3 patients in the aspirin group. Aspirin treatment decreased renal disease progression in a model adjusted for age, baseline kidney function, and diabetes mellitus (HR, 0.272; 95% CI, 0.077–0.955; p = 0.043) but did not when adjusted for albuminuria. No differences were found in minor bleeding episodes between groups and no major bleeding was registered.
Limitations
Small sample size and open-label trial.
Conclusions
Long-term treatment with low-dose aspirin did not reduce the composite primary endpoint; however, there were reductions in secondary endpoints with fewer coronary events and renal outcomes. ClinicalTrials.gov Identifier: NCT01709994.
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Funding
AASER was supported by Sociedad Española de Nefrologia (SEN) and Sociedad Madrileña de Nefrología (SOMANE). MG, GFJ, DA, AO, and JL are supported by ISCIII RETIC REDINREN RD016/009 and FEDER funds.
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The authors declare that they have no conflict of interest.
Ethical Approval
All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments.
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Goicoechea, M., de Vinuesa, S.G., Quiroga, B. et al. Aspirin for Primary Prevention of Cardiovascular Disease and Renal Disease Progression in Chronic Kidney Disease Patients: a Multicenter Randomized Clinical Trial (AASER Study). Cardiovasc Drugs Ther 32, 255–263 (2018). https://doi.org/10.1007/s10557-018-6802-1
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DOI: https://doi.org/10.1007/s10557-018-6802-1