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AzTrials

Carotid Artery PlaquePREDICTNCT05566080

Preoperative Identification of the Histologically "Vulnerable" Plaque Using Non-invasive Imaging, Biomechanical Assessment and Baroreflex Evaluation in Patients With Severe Carotid Stenosis

An observational study of Carotid Artery Plaque and Diagnosis, run by IRCCS Policlinico S. Donato at 1 site in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Carotid artery stenosis due to atherosclerotic plaques accounts for an important cause of ischemic stroke. Current research seeks to risk stratify asymptomatic patients by characterizing rupture-prone plaques. Currently no single imaging modality can reliably identify those plaques before surgery. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Carotid Artery Plaque, Diagnosis
What is being tested?
Carotid endarterectomy
Type of treatment
Surgery or procedure
How many people
100 participants
Where
1 siteItaly
Study dates
15 Mar 2021to 30 Sep 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Adult, Older adult

Study population: Patients undergoing CEA for a 70-99% asymptomatic stenosis according to ECST measurement of the internal carotid artery at Unit of Vascular Surgery, IRCCS Policlinico San Donato.

Who may be able to join

  • age above 18 years;
  • signed informed consent.

Who cannot join

  • medical conditions limiting expected survival to <1 year;
  • patients with significant uncontrolled or unstable medical condition (heart failure or angina pectoris class NYHA III-IV, cardiac surgery in the previous 30 days, left ventricular ejection fraction <30%, severe chronic obstructive pulmonary disease, myocardial infarction in the previous 30 days, coronary heart disease with revascularization indication, that is, the common trunk or more than two coronary vessels);
  • tracheostomy;
  • paralysis of the laryngeal nerve contralateral to the carotid stenosis;
  • women of childbearing potential;
  • inability to give informed consent;
  • patients presenting contraindications to perform a CTA examination of neck vessels with contrast medium;
  • patients with medical history of stroke/TIA within the previous 6 months.

Trial locations and contacts

1 site in 1 country.

Italy1 site

  • IRCCS Policlinico San Donato

    San Donato Milanese, Milan, 20097

Other trials in Italy

About this study

Carotid artery stenosis due to atherosclerotic plaques accounts for an important cause of ischemic stroke. Current research seeks to risk stratify asymptomatic patients by characterizing rupture-prone plaques. Currently no single imaging modality can reliably identify those plaques before surgery. Recently, the 3D ultrasound (US) and the assessment of the mechanical stress on the vessel wall have been proposed as non-invasive tools that could play a role in the diagnostic work-up. Data of histological validation, however, are still needed. In this research, 3D US, non-invasive elastography, Finite Element Analysis of computed tomography angiography images and the study of the autonomic cardiovascular control will be used to identify preoperatively the vulnerable plaque in patients undergoing carotid endarterectomy. The results will be compared to that of histology of the removed plaque, aiming to provide a validation to each method for a possible application in the daily practice.

Being tested
Carotid endarterectomy
Keywords
carotid stenosis, ultrasonic imaging, finite element analysis
Medical subject headings
Carotid Stenosis, Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Carotid endarterectomyProcedure or surgery

    Patients who have a significant carotid stenosis and who undergo surgical carotid endarterectomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Plaque vulnerability

    To assess the correlation between the result of 3D US in identifying preoperatively the features of vulnerable plaque (plaque volume; presence of a lipidic core/intraplaque hemorrhage/plaque ulceration; fibrous cap thickness) and that of the histological analysis, in patients who will undergo CEA for a 70-99% carotid stenosis. To assess the correlation between the US-SE parameters to plaque vulnerability, as defined by the histological analysis.

    Measured: Through study completion, an average of 3 years

  2. Plaque vulnerability

    To assess the state of the autonomic function and cardiovascular control in patients undergoing CEA and check if there is a relation with the histological analysis of the carotid plaque after CEA.

    Measured: Through study completion, an average of 3 years

  3. Plaque vulnerability

    To develop software routines to process US B-mode and US-SE images; to determine the mechanical stress patterns on the vessel wall by the different types of carotid plaques through the FEA of preoperative CTA scans of the recruited patients, and their correlation with the plaque histology and 3D US images. relation with the histological analysis of the carotid plaque after CEA.

    Measured: Through study completion, an average of 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Oct 2022
  2. Study start15 Mar 2021
  3. Primary completion30 Sep 2023
  4. Study completion30 Sep 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05566080
Sponsor's protocol ID
GR-2018-12366862
Acronym
PREDICT
Status last verified
Dec 2023
First submitted
28 Sep 2022
Last updated
28 Dec 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Kolos I, Troitskiy A, Balakhonova T, Shariya M, Skrypnik D, Tvorogova T, Deev A, Boytsov S; Aggressive Medical Treatment Evaluation for Asymptomatic Carotid Artery Stenosis (AMTEC) Study Group. Modern medical treatment with or without carotid endarterectomy for severe asymptomatic carotid atherosclerosis. J Vasc Surg. 2015 Oct;62(4):914-22. doi: 10.1016/j.jvs.2015.05.005.

    PubMed 26410046

  • Spence JD. Endarterectomy vs. stenting vs. medical therapy. Int J Stroke. 2016 Jul;11(5):500-1. doi: 10.1177/1747493016643552. Epub 2016 Apr 11.

    PubMed 27256474

  • Gupta A, Baradaran H, Schweitzer AD, Kamel H, Pandya A, Delgado D, Dunning A, Mushlin AI, Sanelli PC. Carotid plaque MRI and stroke risk: a systematic review and meta-analysis. Stroke. 2013 Nov;44(11):3071-7. doi: 10.1161/STROKEAHA.113.002551. Epub 2013 Aug 29.

    PubMed 23988640

  • Huibers A, de Borst GJ, Wan S, Kennedy F, Giannopoulos A, Moll FL, Richards T. Non-invasive Carotid Artery Imaging to Identify the Vulnerable Plaque: Current Status and Future Goals. Eur J Vasc Endovasc Surg. 2015 Nov;50(5):563-72. doi: 10.1016/j.ejvs.2015.06.113. Epub 2015 Aug 19.

    PubMed 26298222

  • AlMuhanna K, Hossain MM, Zhao L, Fischell J, Kowalewski G, Dux M, Sikdar S, Lal BK. Carotid plaque morphometric assessment with three-dimensional ultrasound imaging. J Vasc Surg. 2015 Mar;61(3):690-7. doi: 10.1016/j.jvs.2014.10.003. Epub 2014 Dec 9.

    PubMed 25499716

  • Mahmood B, Ewertsen C, Carlsen J, Nielsen MB. Ultrasound Vascular Elastography as a Tool for Assessing Atherosclerotic Plaques - A Systematic Literature Review. Ultrasound Int Open. 2016 Nov;2(4):E106-E112. doi: 10.1055/s-0042-115564. Epub 2016 Oct 13.

    PubMed 27896334

  • Tsekouras NS, Katsargyris A, Skrapari I, Bastounis EE, Georgopoulos S, Klonaris C, Bakoyiannis C, Bastounis EA. The role of carotid plaque echogenicity in baroreflex sensitivity. J Vasc Surg. 2011 Jul;54(1):93-9. doi: 10.1016/j.jvs.2010.11.121. Epub 2011 Mar 31.

    PubMed 21458208

  • Ricotta JJ, Aburahma A, Ascher E, Eskandari M, Faries P, Lal BK; Society for Vascular Surgery. Updated Society for Vascular Surgery guidelines for management of extracranial carotid disease. J Vasc Surg. 2011 Sep;54(3):e1-31. doi: 10.1016/j.jvs.2011.07.031.

    PubMed 21889701

  • Heart rate variability: standards of measurement, physiological interpretation and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. Circulation. 1996 Mar 1;93(5):1043-65. No abstract available.

    PubMed 8598068

  • Pagani M, Montano N, Porta A, Malliani A, Abboud FM, Birkett C, Somers VK. Relationship between spectral components of cardiovascular variabilities and direct measures of muscle sympathetic nerve activity in humans. Circulation. 1997 Mar 18;95(6):1441-8. doi: 10.1161/01.cir.95.6.1441.

    PubMed 9118511

  • van Engelen A, Wannarong T, Parraga G, Niessen WJ, Fenster A, Spence JD, de Bruijne M. Three-dimensional carotid ultrasound plaque texture predicts vascular events. Stroke. 2014 Sep;45(9):2695-701. doi: 10.1161/STROKEAHA.114.005752. Epub 2014 Jul 17.

    PubMed 25034714

  • Sadat U, Li ZY, Young VE, Graves MJ, Boyle JR, Warburton EA, Varty K, O'Brien E, Gillard JH. Finite element analysis of vulnerable atherosclerotic plaques: a comparison of mechanical stresses within carotid plaques of acute and recently symptomatic patients with carotid artery disease. J Neurol Neurosurg Psychiatry. 2010 Mar;81(3):286-9. doi: 10.1136/jnnp.2009.190363. Epub 2009 Nov 25.

    PubMed 19939857

  • Simel DL, Samsa GP, Matchar DB. Likelihood ratios with confidence: sample size estimation for diagnostic test studies. J Clin Epidemiol. 1991;44(8):763-70. doi: 10.1016/0895-4356(91)90128-v.

    PubMed 1941027

Questions about this trial

What is this clinical trial studying?

An observational study of Carotid Artery Plaque and Diagnosis, run by IRCCS Policlinico S. Donato at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Plaque vulnerability (time frame: Through study completion, an average of 3 years). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05566080, which also lists 13 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Dec 2023.

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