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CompletedNCT03234127SAFIRUpdated May 24, 2021

Study of cardiovAscular Contrasted Phenotypes in Patients With FamIliaI hypercholesteRolemia

An interventional study of Whole Genome Sequencing in Homozygous Familial Hypercholesterolemia, sponsored by Nantes University Hospital. Completed at 9 sites in France. Open to participants aged 40 Years and older. Per ClinicalTrials.gov, last updated 2021-05-24.

Sponsored by Nantes University Hospital · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
562
Allocation
Non-randomized
Ages
40 Years and older
Sex
All
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Study summary

The main objective of SAFIR is to identify the atherosclerotic genetic factors in these patients, which will identify new therapeutic targets for the treatment of CV and Familial Hypercholesterolemia diseases. In addition, SAFIR will allow the identification of new CV protection biomarkers, which will be useful tools for the development of a personalized medicine for the management of dyslipidemias.

Read the detailed description

The objective of the SAFIR study is to perform non-invasive coronary vascular phenotyping of familial hypercholesterolemia (FH) families by performing a coronary calcium score and then to detect protective genetic factors in patients who do not have a significant atheroma despite a perturbed biological phenotype.

The investigators will also conduct biochemical, lipidemic and metabolomic analyzes to identify a signature of biomarkers protective of cardiovascular risk in FH patients.

The investigators will use the French FH register, which already includes 3889 patients, to identify these "protected" FH families within the main reference centers for the management of FH for inclusion and follow-up of patients.

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Conditions studied

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In context

Hyperlipoproteinemia Type II

245 studies on the registry are indexed under Hyperlipoproteinemia Type II; 52 are open to participants now.

This study's enrollment of 562 is above the median of 86 across 170 interventional studies indexed under Hyperlipoproteinemia Type II.

Browse Hyperlipoproteinemia Type II studies →

Lead sponsor

Nantes University Hospital is the lead sponsor of 825 studies on the registry; 195 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
40 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient agreeing to sign the consent of the study and the consent of biocollection
  • Patient suffering from a familial hypercholesterolemia with a clinically-biologic score DLCN (Dutch Lipid Clinic Network, Annex 2)> 8 and / or a causative mutation identified in the LDL receptor genes, apolipoprotein B100 or Of PCSK9.
  • Men ≥ 40 years of age; Female ≥ 50 years
  • Patient affiliated to an existing social insurance

The inclusion criteria to be met in the population with known coronary atheroma:

  • Subject in secondary prevention of an atheromatous disease: coronary event or ischemic heart disease, irrespective of the result of the coronary calcium score; Ischemic stroke with proven carotid atheromatosis; revascularization (angioplasty, bypass surgery) or amputation in PAD
  • Primary prevention topic CV with calcium score ≥ 400 Agatston units

Inclusion criteria to be met in the population without cardiovascular risk:

  • No cardiovascular event (including MI, coronary revascularization, angina, stroke \&, Transiant ischemic attack of atheromatous origin, PAD) with: For women between 50 and 65 years, a nil calcium score * For women between 65 and 75 years of age, a calcium score** ≤ 10 Agatston units For women over 75 years of age, a calcium score** ≤ 20 Agatston units For men between 40 and 55 years of age, a nil calcium score* for men For men between 55 and 70 years of age, a calcium score** ≤ 10 Agatston units For men over 70 years of age, a calcium score** ≤ 20 Agatston units
  • 40 year old men and 50 year old women: less than 6 months old
  • 41 year old men and 51 year old women: under 1 year old
  • 42 year old men and 52 year old women: under 2 years old
  • 43 year old men and 53 year old women: under 3 years old
  • 44 year old men and 54 year old women: under 4 years old

    • Less than 5 years

Inclusion criteria to be met in the related population with familial hypercholesterolemia :

  • Patient agreeing to sign the consent of the study and the consent of biocollection
  • Patient suffering from a familial hypercholesterolemia with a clinically-biologic score DLCN (Dutch Lipid Clinic Network, Annex 2)> 8 and / or a causative mutation identified in the LDL receptor genes, apolipoprotein B100 or Of PCSK9.
  • Men or Female ≥ 30 years
  • Patient affiliated to an existing social insurance

Inclusion criteria to be met in the related population without familial hypercholesterolemia :

  • Patient agreeing to sign the consent of the study and the consent of biocollection
  • Patient not suffering from a familial hypercholesterolemia related to one of the members of the population suffering from familial hypercholesterolemia without cardiovascular risk
  • Men or Female ≥ 18 years
  • Patient affiliated to an existing social insurance

Exclusion criteria

Exclusion Criteria:

  • Subject suffering from active cancer or progressive neoplasia
  • Subject treated with recent corticosteroid therapy
  • Subjects with unsubstituted or poorly controlled hypothyroidism (TSH> normal)
  • Subject receiving immunosuppressive or anti-cancer treatment
  • Subject refusing to participate
  • Subjects under tutelage, curatorship or a safeguard of justice or without social insurance

The exclusion criterion for all populations except the related population without familial hypercholesterolemia:

  • Subject with no "definite" familial hypercholesterolemia according to the DLCN score (≤8), after auction. The purpose of the auction will be to rule on the causal nature of an identified mutation.
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Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
562 participants (actual)

Study arms

  • Other
    Atherosclerosis- resistance

    FH Patient without atherosclerosis

    Genetic: Whole Genome Sequencing

  • Other
    Control

    FH patient with atheroclerosis

    Genetic: Whole Genome Sequencing

  • Other
    the related population without familial hypercholesterolemia

    No FH patient

    Genetic: Whole Genome Sequencing

Interventions

  • GeneticWhole Genome Sequencing

    Whole Genome Sequencing Biomarkers analyses

    Also known as: Biological analyzes

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What researchers measure

Primary outcomes

  1. Identification of genes associated with the resistance to development of coronary atherosclerosis in subjects with heterozygous familial hypercholesterolemia

    Identification of functional genetic variants by a Whole Genome Sequencing (WGS) approach in case-control analysis (FH without and with advanced coronary atherosclerosis) and/or family analysis (protected and affected relatives)

    Time frame: 3 years

Secondary outcomes

  1. Identification of new biochemical, lipidemic, metabolomic and metagenomic biomarkers associated with cardiovascular protection in FH patients.

    Lipidic panel, phosphocalcic panel, Ceramides, Alipoproteins, Lp(a), lipidomic, LDL size, Phospholipids, TMAO, Carnitin, Cholin, microbiota, metabolomic, LDL Ox, Sterols, Isoprostan, oxidation, inflammation, cytokins, oxidative stress.

    Time frame: 3 years

  2. Association of arterial stiffness (reflected by the pulse wave velocity) with the development of coronary atherosclerosis in FH patients

    Measurement of arterial stiffness measured by popmeter® (pulse wave velocity)

    Time frame: 3 years

  3. Association of atherosclerosis of supra-aortic trunks (AST) with the development of coronary atherosclerosis in FH patients

    Measurement of ASD through arterial Doppler ultrasonography (Intra-media thickness (IMT), degree of stenosis (ESCT), plaque)

    Time frame: 3 years

  4. Association of atherosclerosis of the lower limbs with the development of coronary atherosclerosis (PAD) in FH patients

    Measurement of lower extremity involvement by arterial doppler ultrasonography

    Time frame: 3 years

  5. Association between aortic valvular score and development of coronary atherosclerosis in FH patients

    Measurement of coronary calcium score and aortic valvular score (optional) by a thoracic CT scan

    Time frame: 3 years

  6. Association between coronary calcium score and aortic valvular score in HF patients

    Measurement of coronary calcium score and aortic valvular score (optional) by a thoracic CT scan

    Time frame: 3 years

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Study locations

9 sites
  • Le Bocage Hospital
    Dijon, 29079, France
  • CHRU de Lille
    Lille, 59037, France
  • Louis Pradel Cardiovascular Hospital
    Lyon, 69677, France
  • La Conception Hospital
    Marseille, 13285, France
  • Nantes University Hospital
    Nantes, 44093, France
  • Saint-Antoine Hospital
    Paris, 75012, France
  • Pitié-Salpêtrière Hospital
    Paris, 75013, France
  • Rennes University Hospital
    Rennes, 35033, France
  • Toulouse Hospital
    Toulouse, 31059, France
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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 24, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03234127
Lead sponsor
Nantes University Hospital
Responsible party
Sponsor
First posted
Jul 31, 2017
Start date
Dec 6, 2017
Primary completion
May 6, 2021
Completion
May 6, 2021
Last update
May 24, 2021

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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