Non-invasive Microvascular Assessment in Individuals at High Risk of Cardiovascular Disease From the SCAPIS2 Study

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorHJN Sverige AB/Neko Health

About this trial

Microvascular dysfunction, particularly endothelial dysfunction, is increasingly recognized as a key mechanism underlying various cardiovascular diseases (CVD), including heart failure, ischemic heart disease, atherosclerosis, stroke, dementia, and kidney failure. Chronic low-grade inflammation linked to metabolic syndrome may further drive systemic microvascular impairment. Early detection of these subclinical processes using non-invasive assessments could facilitate timely interventions to prevent disease progression.

SCAPIS 2 Spectrum is a prospective observational sub-study of the Swedish Cardiopulmonary Bioimage Study (SCAPIS-2), recruiting approximately 900 subjects aged 60-75 years. The study is organized into five arms-obstructive coronary artery disease (O-CAD), angina with nonobstructive coronary arteries (ANOCA), metabolic syndrome with diabetes, left ventricular systolic dysfunction, and left ventricular diastolic dysfunction-each defined by specific inclusion and exclusion criteria. Participants will undergo a comprehensive microvascular assessment using investigational devices (including Perimed Periflux EPOS, PeriCam MultiFlow, and TCI P4) alongside stress cardiac magnetic resonance imaging (stress-CMR) for cardiac-specific evaluation.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Participated in the SCAPIS baseline (SCAPIS 1 study, 10 years ago)

Cohort specific inclusion criteria apply, as stated in 'groups' section

Has been invited to SCAPIS 2 core Singed informed consent to SCAPIS 2 core

Disqualifiers

Scarring, tattoos, or amputations that preclude device examination

Cohort specific exclusion criteria apply, as stated in 'groups' section

Trial population

SCAPIS 2 General cohort

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

900 Participants
are grouped into 4 trial groups
Group A: O-CAD
Group B: ANOCA
Group C: Metabolic
Group D: Left ventricular diastolic dysfunction

Trial outcomes

Primary outcomes

1

Correlation between device-derived skin microcirculation variables and CCTA severity metrics including CAD-RADS (0-5) and plaque burden

Assess the correlation between skin microcirculation parameters measured by investigational devices (icluding PORH; 42°C local heat plateau; flow-motion endothelial-band power; iontophoresis acetylcholine response), coronary CT angiography (CCTA) severity metrics: CAD-RADS score, 0-5, zero is equivalent to no plaque and 5 indicates complete occlusionan (fully blocked) and Plaque burden indices (e.g., Segment Involvement Score \[SIS\]) The device-derived microcirculation parameters are: Baseline perfusion, Perfusion after provocation, Peak perfusion, Time to peak, Recovery time, Capillary recruitment and Oxygen saturation (StO₂) The goal is to determine if these microcirculation measurements reflect coronary disease severity.

Time frame
Baseline
2

Discriminative performance of device-derived microcirculatory variables for significant coronary stenosis

Evaluate the ability of microcirculatory variables measured by investigational devices to discriminate between patients with and without significant coronary stenosis, defined as CAD-RADS ≥ 3 (≥50% luminal narrowing on coronary CT angiography).

Time frame
Baseline
3

Proportion of ANOCA participants (CAD-RADS <3 with angina per Rose questionnaire) who meet CMD criteria on stress-cardiac MRI using perfusion assessment

Calculate the proportion of participants classified as ANOCA (defined as CAD-RADS \< 3 and angina symptoms per Rose Angina Questionnaire) who fulfill criteria for coronary microvascular dysfunction (CMD) based on stress cardiac MRI perfusion assessment according to site-standard protocols

Time frame
Baseline
4

Proportion of INOCA participants (CAD-RADS <3 with ishemia per Rose questionnaire) who meet CMD criteria on stress-cardiac MRI using perfusion assessment.

Calculate the proportion of participants classified as INOCA (CAD-RADS \< 3 and objective ischemia evidence) who fulfill CMD criteria based on stress cardiac MRI perfusion assessment..

Time frame
Baseline and at stress cardiac MRI- visit within 3 months

Secondary outcomes

1

Correlation of Myogenic Response with Cardiovascular Disease

Asses the association between myogenic response from device-derived variables and cardiovascular disease incidence; includes incidence of myogenic vs endothelial dysfunction.

Time frame
Baseline
2

Association of Vascular Inflammation with Microcirculatory Variables

Correlation between systemic inflammation biomarkers (e.g., hsCRP, IL-6, GlycA) and device-derived microcirculatory measures; exploratory detection of early inflammatory alterations.

Time frame
Baseline
3

Mechanisms of endothelial damage and Cardiovascular Disease devlopment

Analysis of biomarker panels (endothelial/glycocalyx damage: thrombomodulin, VE-cadherin, syndecan-1, hyaluronan) to identify progression patterns and explore the correlation with device-derived microcirculatory variables.

Time frame
Baseline
4

Development of multi-modal Cardiovascular Disease risk score

Creation and validation of a composite risk score integrating microcirculatory variables derived from investigationa devices and biomarker data; evaluation of predictive performance for Cardiovascular Disease endpoints.

Time frame
Baseline

Other outcomes

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