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Coronary Artery DiseaseVEST PivotalNCT03209609

VEST Venous Graft External Support Pivotal Study

A study testing VEST and Coronary artery bypass vein grafts in people with Coronary Artery Disease, run by Vascular Graft Solutions Ltd. at 17 sites in 2 countries.

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

Prospective, multi-center, randomized, within-subject-controlled , trial, enrolling patients with multi vessel atherosclerotic coronary artery disease, scheduled to undergo SVG CABG with arterial grafting of IMA to LAD and two or more saphenous vein grafts. Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Coronary Artery Disease
What is being tested?
VEST and Coronary artery bypass vein grafts
Could I receive a placebo?
No, everyone receives an active treatment
How many people
224 participants
Where
17 sitesin 2 countries
Study dates
9 Jan 2018to 25 Sep 2024
Phase
Interventional
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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Signed informed consent, inclusive of release of medical information, and Health Insurance Portability and Accountability Act (HIPAA) documentation.
  • Age 21 years or older.
  • Planned and scheduled on-pump CABG.
  • Two or more vein grafts to native vessels having at least 75% stenosis and comparable runoff.
  • IMA graft indicated for the LAD. Additional arterial grafts may be considered based on practice guidelines.
  • Appropriately sized and accessible target coronary arteries, with a minimum diameter of 1.5 mm and adequate vascular bed (without significant distal stenosis), as assessed by pre-operative cardiac angiography and verified by diameter gauging intraoperatively.

Who cannot join

  • Concomitant non-CABG cardiac surgical procedure.
  • Prior cardiac surgery.
  • Emergency CABG surgery.
  • Contraindication for on-pump CABG with cardioplegic arrest (e.g. severely calcified aorta).
  • Calcification at the intended anastomotic sites, as assessed upon opening of the chest and before randomization.
  • Severe vein varicosity as assessed after vein harvesting and before randomization.
Show all 13Show fewer
  • History of clinical stroke within 3 months prior to randomization.
  • Severe renal dysfunction (Cr>2.0 mg/dL).
  • Documented or suspected untreated diffuse peripheral vascular disease such as: carotid stenosis or claudication of the extremities.
  • Concomitant life-threatening disease likely to limit life expectancy to less than two years.
  • Inability to tolerate or comply with required guideline-based post-operative drug regimen (antiplatelet plus statin) and/or inability to take aspirin.
  • Inability to comply with required follow-ups including angiographic imaging methods (e.g. contrast allergy).
  • Concurrent participation in an interventional (drug or device) trial.

Trial locations and contacts

17 sites in 2 countries.

17 sites in 2 countries

United States14 sites
  • University of Maryland Baltimore

    Baltimore, Maryland, 21201

  • University of Virginia

    Charlottesville, Virginia, 22908

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • Duke University Medical Center

    Durham, North Carolina, 27705

  • Lutheran Hospital of Indiana

    Fort Wayne, Indiana, 46804

  • Dartmouth-Hitchcock Medical Center

    Lebanon, New Hampshire, 03756

  • University of Southern California

    Los Angeles, California, 90033

  • Mount Sinai St Luke's

    New York, New York, 10025

  • New York Presbyterian Hospital/Columbia University Medical Center

    New York, New York, 10032

  • Montefiore Medical Center

    New York, New York, 10467

  • Hospital of the University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Baylor Scott & White Research Institute, The Heart Hospital Baylor Plano

    Plano, Texas, 75093

  • WakeMed Health & Hospitals

    Raleigh, North Carolina, 27610

  • Mayo Clinic

    Rochester, Minnesota, 55902

Other trials in United States

Canada3 sites
  • London Health Sciences Centre, University Hospital

    London, Ontario, N6A 5A5

  • Institut de Cardiologie de Montréal

    Montreal, Quebec, H1T 1C8

  • Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval

    Québec, Quebec, G1V 4G5

Other trials in Canada

About this study

Official title: A Multi-center, Randomized, Within-subject-controlled, Open Label Study of the Safety and Effectiveness of VEST, Venous External Support

Prospective, multi-center, randomized, within-subject-controlled , trial, enrolling patients with multi vessel atherosclerotic coronary artery disease, scheduled to undergo SVG CABG with arterial grafting of IMA to LAD and two or more saphenous vein grafts. In each patient, one SVG bypass will be randomized to be supported by the VEST, while another will not be supported and serve as control. Thus, the full cohort will provide a basis for comparison between two sets of SVGs: A VEST supported set; and an unsupported set.

Read the detailed description

Clinical significance:

Coronary artery bypass grafting (CABG) remains the gold standard treatment for patients with multi-vessel coronary artery disease. Despite the proposed benefits of multiple arterial grafts, autologous saphenous vein grafts (SVGs) are still the most frequently used bypass conduits in CABG. Progressive SVG failure after CABG remains a key limitation to the long-term success of surgery.

Objective:

Coronary artery bypass grafting (CABG) remains the gold standard treatment for patients with multi-vessel coronary artery disease. Despite the proposed benefits of multiple arterial grafts, autologous saphenous vein grafts (SVGs) are still the most frequently used bypass conduits in CABG. Progressive SVG failure after CABG remains a key limitation to the long-term success of surgery.

Study design:

Prospective, multi-center, randomized, within-subject-controlled , trial, enrolling patients with multi vessel atherosclerotic coronary artery disease, scheduled to undergo SVG CABG with arterial grafting of IMA to LAD and two or more saphenous vein grafts. In each patient, one SVG bypass will be randomized to be supported by the VEST, while another will not be supported and serve as control. Thus, the full cohort will provide a basis for comparison between two sets of SVGs: A VEST supported set; and an unsupported set.

Being tested
VEST, Coronary artery bypass vein grafts
Keywords
Coronary artery bypass
Medical subject headings
Coronary Artery Disease

What participants receive

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

  • VESTDevice

    External support for vein grafts, cobalt chrome braid

  • Coronary artery bypass vein graftsProcedure or surgery

    Bypass coronary arteries with autologous saphenous vein grafts

Study groups in NCT03209609
Study groupRoleWhat they receive
VEST supported vein graftExperimentalCoronary artery bypass vein graft supported with the VEST implant
Receives: Device: VEST; Procedure: Coronary artery bypass vein grafts
Standard of care vein graftsActive comparatorCoronary artery bypass vein grafts
Receives: Procedure: Coronary artery bypass vein grafts

What is being measured

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

  1. Intimal hyperplasia area/graft occlusion

    Intimal hyperplasia (plaque+media) area [mm2] as assessed by IVUS at 12 months. Occluded vessels are accounted for in the analysis of the primary endpoint

    Measured: 1 year

Secondary outcomes (2)
  1. Lumen diameter uniformity

    Lumen diameter uniformity, assessed by angiography for each graft separately and expressed by the Fitzgibbon classification (22), on a 3-point ordinal scale

    Measured: 1 year

  2. vein graft failure

    Graft Failure (≥50% stenosis) by cardiac angiography

    Measured: 1 year

Timeline

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

  1. First posted6 Jul 2017
  2. Study start9 Jan 2018
  3. Primary completion29 Sep 2020
  4. Study completion25 Sep 2024

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
In each patient, one SVG bypass will be randomized to be supported by the VEST, while another will not be supported and serve as control.
Masking
None (open label)
Enrolment
224 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03209609
Sponsor's protocol ID
CD0131
Acronym
VEST Pivotal
Status last verified
Feb 2025
First submitted
4 Jul 2017
Last updated
6 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Goldstein DJ, Puskas JD, Alexander JH, Chang HL, Gammie JS, Marks ME, Iribarne A, Vengrenyuk Y, Raymond S, Taylor BS, Yarden O, Orion E, Dagenais F, Ailawadi G, Chu MWA, DiMaio JM, Narula J, Moquete EG, O'Sullivan K, Williams JB Jr, Crestanello JA, Jessup M, Rose EA, Scavo V, Acker MA, Gillinov M, Mack MJ, Gelijns AC, O'Gara PT, Moskowitz AJ, Bagiella E, Voisine P. External Support for Saphenous Vein Grafts in Coronary Artery Bypass Surgery: A Randomized Clinical Trial. JAMA Cardiol. 2022 Aug 1;7(8):808-816. doi: 10.1001/jamacardio.2022.1437.

    PubMed 35675092

Questions about this trial

What is this clinical trial studying?

A study testing VEST and Coronary artery bypass vein grafts in people with Coronary Artery Disease, run by Vascular Graft Solutions Ltd. at 17 sites in 2 countries.

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 6 inclusion and 13 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 6 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 17 sites in United States, Canada. 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?

Intimal hyperplasia area/graft occlusion (time frame: 1 year). 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 NCT03209609, which also lists 1 linked publication.

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 6 Feb 2025.

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