Hyperlipoproteinemia A as a Marker of Cardiovascular Risk in Patients With Stage 4 Chronic Kidney Disease

The blood level of lipoprotein A (Lp(a)) is linked to mutations in gene 6 and is associated with atherothrombotic risk and clinical manifestations such as myocardial infarction, ischemic stroke, and aortic valve calcification and stenosis. Several studies show an increased cardiovascular risk for a level \>125 nmol/L. Patients with severe chronic kidney disease (CKD) or on hemodialysis are at high cardiovascular risk, and Lp(a) levels would allow for better reclassification of this cardiovascular risk in the general population. The study authors wished to the heterogeneity of the Lp(a) level in the population with CKD stages 4 without renal replacement therapy and to identify whether a high Lp(a) level is associated with cardiovascular comorbidity defined by the presence of cardiovascular comorbidity after adjustment for known risk factors such as diabetic status, obesity, smoking, LDLc level and medical treatment for cardiovascular prevention (statins, etc.). Furthermore, they will evaluate whether there is a link between a high level (\> 125 mmol/l) of Lp(a) at inclusion in the cohort and the occurrence of cardiovascular or renal events (i.e. death of cardiovascular origin or occurrence of MI, stroke, stage 4 peripheral artery disease (PAD) or initiation of renal replacement) over a follow-up period of 18 months which could raise questions about the benefit of a specific treatment which remains to be evaluated.

NCT Number	NCT07141628
Lead Sponsor	Centre Hospitalier Universitaire de Nīmes
Conditions	CKD, Cardiovascular Diseases
Enrollment	300 participants
Start Date	2026-01
Primary Completion	2027-09 (estimated)
Study Completion	2027-09 (estimated)
Updated on ClinicalTrials.gov	2025-11-24