Intracoronary Cryotherapy Effect on Stabilization of Vulnerable Plaque in Patients With Stable Angina or ACS - A Traditional Feasibility Study

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorCryotherapeutics SA

About this trial

ICECAP is a multi-centre, prospective, single-arm, interventional, traditional feasibility clinical investigation to evaluate the efficacy and safety of intra-coronary cryotherapy on vulnerable or high-risk plaque (HRP), using the CryoTherapy System (CTS). The study aims to enroll 25 patients with symptomatic coronary artery disease, successfully treated for their culprit lesion and with presence of at least one HRP lesion in another vessel. Eligible patients will undergo cryotherapy during a planned procedure. Near-infrared spectrometry (NIRS and Optical Coherence Tomography imaging will be used during baseline procedure, and during a 9 months follow visit. The primary endpoint is reduction of plaque burden measured as 30% reduction in maxLCBI4mm as measured by NIRS at 9 months post procedure.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Non-ST-segment elevation myocardial infarction (NSTEMI) with rise/fall of cardiac enzymes (troponin I or T) with at least one value above the 99th percentile of the upper reference limit requiring PCI within 72 hours from diagnosis

Unstable angina

ST-segment elevation myocardial infarction (STEMI) 3) Successful PCI (defined as diameter stenosis less than 30% and TIMI 3 flow on final angiography without procedural complication) of the culprit lesion.

Located in a non-culprit vessel,

Disqualifiers

1) Subject is hemodynamically unstable (cardiogenic shock, hypotension needing inotropes, hypoxia needing intubation, refractory ventricular arrhythmias, and IABP).

Visible distal embolization/no-reflow following culprit lesions PCI.

Left main coronary artery disease (visual diameter stenosis > 50%).

Stent thrombosis/restenosis as a culprit lesion.

Trial design

Design model

Single group

Treatments tested in this trial

  • Intracoronary Cryotherapy

    Device

    Intracoronary cryotherapy for stabilization of High-risk coronary plaque

Treatment groups

30 Participants
are divided into 1 treatment group
Group A: Treatment armExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Primary efficacy endpoint

Reduction of in maxLCBI4mm in the lesion measured by NIRS

Time frame
At 9 months post-CTS procedure compared to baseline.
2

co-primary safety endpoint

Rate of Cryotherapy procedure related complications or MACE

Time frame
at 30 days post procedure

Secondary outcomes

1

Change in Fibrous Cap Thickness

Change in OCT-derived fibrous cap thickness

Time frame
At 9 months post-CTS procedure compared to baseline
2

Change in Minimal Lumen Area (MLA)

Change in minimum lumen area (MLA) by OCT

Time frame
At 9 months post-CTS procedure compared to baseline.
3

Prevalence of Thin Cap Fibrous Atheroma

Prevalence of thin cap fibroatheroma (minimum fibrous cap thickness \< 65 µm with lipid arc \> 90°) by OCT.

Time frame
At 9 months post-CTS procedure compared to baseline.
4

Prevalence of lipid Arc >90°

Prevalence of lipid arc greater than 90° by OCT.

Time frame
At 9 months post-CTS procedure compared to baseline.

Other outcomes

Sponsors and contacts

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Cryotherapeutics SA

Lead sponsor

CoreAalst BV

Collaborator