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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06157983
Other study ID # K2023-4595
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date December 1, 2023
Est. completion date December 31, 2025

Study information

Verified date March 2024
Source Karolinska Institutet
Contact Jonas Brinck, MD PhD
Phone +46-70-3029748
Email jonas.brinck@ki.se
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The aim of the current project is to evaluate the penetrance of elevated plasma Lp(a) levels in patients with atherosclerotic coronary artery disease to their first- and second-degree biological relatives based on data from a clinical health care development project.


Description:

An elevated plasma level of lipoprotein(a) [Lp(a)] is an independent and causative risk factor for atherosclerotic cardiovascular disease. The Lp(a) plasma level is predominantly genetically determined via a complex hereditary pattern of the LPA gene, and remains relatively constant throughout an individual's entire life cycle. The relationship between plasma Lp(a) and the risk for a cardiovascular event has been shown to be linear. Cascade screening, i.e. screening of biological relatives of the first detected patient (index) with a disease in a family, is an effective approach to identify and diagnose new patients with hereditary diseases. The method has been shown to be cost-effective for the most common genetically caused dyslipidemia, familial hypercholesterolemia, but the knowledge if cascade screening would be an effective method to screen for elevated plasma Lp(a) is not known. The aim of the current project is to evaluate the penetrance of elevated plasma Lp(a) levels in patients with atherosclerotic coronary artery disease to their first- and second-degree biological relatives. The study will be based on results from a clinical health care development project in which patients who have had their plasma Lp(a) measured in the clinical routine will be asked to participate in the project. The participating patients invite their relatives to participate in the cascade screening and to measure their plasma Lp(a) levels. Six Swedish hospitals participate in the project and 750 patients with atherosclerotic coronary artery disease be included and divided into three strata according to their plasma Lp(a) level (low <70 nmol/L; intermediate 70-169 nmol/L; high >170 nmol/L). The indexes will in turn invite 1200 first- and second-degree relatives to have their plasma Lp(a) measured. A scientific evaluation of the health care development project will be performed to study the penetrance of elevated plasma Lp(a) levels in indexes to their relatives.


Recruitment information / eligibility

Status Recruiting
Enrollment 1950
Est. completion date December 31, 2025
Est. primary completion date March 1, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria - participation in the clinical health care development project - established atherosclerotic coronary artery disease Exclusion Criteria: - diagnosis of familial hypercholesterolemia - chronic kidney disease stadium =4

Study Design


Intervention

Other:
measurement of lipoprotein(a)
Plasma lipoprotein(a) will be measured in the biological relatives group as part of a clinical health care development project

Locations

Country Name City State
Sweden Karolinska university hospital Stockholm

Sponsors (1)

Lead Sponsor Collaborator
Karolinska Institutet

Country where clinical trial is conducted

Sweden, 

References & Publications (1)

Kronenberg F, Mora S, Stroes ESG, Ference BA, Arsenault BJ, Berglund L, Dweck MR, Koschinsky M, Lambert G, Mach F, McNeal CJ, Moriarty PM, Natarajan P, Nordestgaard BG, Parhofer KG, Virani SS, von Eckardstein A, Watts GF, Stock JK, Ray KK, Tokgozoglu LS, Catapano AL. Lipoprotein(a) in atherosclerotic cardiovascular disease and aortic stenosis: a European Atherosclerosis Society consensus statement. Eur Heart J. 2022 Oct 14;43(39):3925-3946. doi: 10.1093/eurheartj/ehac361. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Difference in proportion of elevated plasma lipoprotein(a) between index and first degree relatives Difference in proportion of low, intermediate and high plasma lipoprotein(a) levels between first degree relatives stratified on index patients Lp(a) level (i.e low, intermediate, high) Dataset will be analysed after completion of health care development project (anticipated March 2025)
Primary Difference in proportion of elevated plasma lipoprotein(a) between index and second degree relatives Difference in proportion of low, intermediate and high plasma lipoprotein(a) levels between second degree relatives stratified on index patients Lp(a) level (i.e low, intermediate, high) Dataset will be analysed after completion of health care development project (anticipated March 2025)
Secondary Difference in cardiovascular disease burden between index and relatives Difference in prevalence of cardiovascular disease manifestations (coronary artery disease, ischemic stroke, peripheral artery disease) between index and relatives in each of the Lp(a) strata of the index (low, intermediate and high).
Data on index will be recorded by a health care professional and data on relatives will be self-reported.
Dataset will be analysed after completion of health care development project (anticipated March 2025)
Secondary Difference in cardiovascular risk factors between index and relatives Difference in prevalence of cardiovascular risk factors (hypertension, diabetes, smoking status) between index and relatives in each of the Lp(a) strata of the index (low, intermediate and high).
Data on index will be recorded by a health care professional and data on relatives will be self-reported.
Dataset will be analysed after completion of health care development project (anticipated March 2025)
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