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NCT05758779Completed

The Danish Familial Hypercholesterolemia Organized Coronary Screening Trial

Coronary CT Screening of Patients With Familial Hypercholesterolemia - The Prevalence of Subclinical Atherosclerosis in Familial Hypercholesterolemia in the Region of Southern Denmark

Source: ClinicalTrials.gov · Last updated 16 Oct 2026

Brief summary (registry, in English)

Familial hypercholesterolemia (FH) is the most common inherited cause of atherosclerotic cardiovascular disease (ASCVD) with a prevalence of approximately one in 200 individuals, however only few of the estimated 30.000 patients with FH in Denmark has been diagnosed. FH is characterized by high levels of low-density lipoprotein cholesterol (LDL-C) and a high risk of premature ASCVD in particular coronary artery disease. The presence of atherosclerosis measured by cardiac computed tomography (CT) is a reliable predictor of future cardiovascular events and may help guide clinicians with regard to the lifestyle modifying therapies and lipid-lowering treatment. However, the prevalence and degree of coronary atherosclerosis in Danish FH patients without symptoms of ASCVD is unknown. Therefore, the invetigators aimed to: * Screen FH patients in a Danish setting for subclinical coronary atherosclerosis to improve lipid-lowering treatment and, * Test if coronary CT screening can help to reach LDL-C therapy goals and reduce smoking. This study will consist of a local cross sectional pilotstudy including 100 asymptomatic FH patients recruited from the lipid clinic at Odense University Hospital and hereafter a regional cross-sectional on approximately 600 asymptomatic FH patients in the Region of Southern Denmark recruited from the lipid clinics trough the national patient registry. In the pilot study, patients will undergo lipid analysis and non-contrast / contrast CT for description of coronary arterial calcium, and plaque morphology in this patient group. This will provide knowledge for planning the regional cross sectional study describing subclinical atherosclerosis in this population. Patients will furthermore be randomized to see their coronary CT scan or not. Mean LDL-C change and smoking status will be evaluated one year after. The benefit of finding subclinical atherosclerotic disease with the possibility to improve lipid-lowering treatment for prevention of future premature ischemic heart disease is considered to outweigh the minor radiation exposure in this trial. If LDL-C is reduced significantly and smoking reduction is significant trough a simple intervention as showing the CT scan to the patient, this study can provide knowledge whether CT screening of this patient group should be considered in Denmark.

Status (registry)
Completed
Study type
Interventional
Enrollment
116 (actual)
First submitted
1 Feb 2023
Start date
1 Sept 2023
Primary completion date
22 Jul 2025
Lead sponsor
Odense University Hospital
NCT number
NCT05758779

What you commit to

  • Study type: Interventional
  • Participants enrolled: 116
  • From 1 Sept 2023 to the primary completion date, 22 Jul 2025
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Current Pregnancy or planning pregnancy (due to radiation issues)
  • Prior allergic reaction to CT-contrast.
  • PCSK9-inhibitor treatment

Other illness

  • History of ASCVD defined as myocardialinfarction, procedural revascularisation, CABG and/or objective evidence if ischaemia (exercise stress test, stress echocardiography, myocardial perfusion scintigraphy, stress cardiac magnetic resonance, coronary angiography, cardiac CT), angina pectoris, ischaemic stroke or a medically (aspirin, clopidogrel, persantin) treated transitory ischaemic attack, and symptomatic peripheral vascular disease with ankle-brachial index below 0.9 or procedural revascularisation.
  • Three vessels disease

Lab values

  • eGFR \< 60 ml/min/1,73 m2 (due to CT-contrast)
  • Secondary dyslipidemia
    • Dysregulated diabetes
    • Dysregulated hypothyreosis TSH \> 4,0 IU/L.
    • Combined hyperlipidemia: TG \> 4 mmol/L
    • Nefrotic syndrome: proteinuria \> 3 g/L and s-albumin \< 30 g/l
    • History of primary billiary cirrhosis
    • Low-carb-high-fat diet.
    • Pharmacological induced dyslipidemia
    • Findings on Coronary CT leads to exclusion

Age

  • Life expectancy \< 5 years.

Other

  • Left main coronary artery stenosis
  • Proximal left anterior descending coronary artery stenosis
  • Proximal right coronary artery stenosis

Who the study is looking for

  • Patients diagnosed with genetically or clinically FH (DLCN score \> 6) between the age of 20 and 70 are eligible patients in DANFOCOS.

Age in the registry: 20 years to 70 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Odense University Hospital
Coordinator of this site? Confirm its status
OdenseDenmarkUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.