Valor II: The Valiant Thoracic Stent Graft System Clinical Study

NCT ID: NCT00413231

Last Updated: 2021-11-03

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-12-31

Study Completion Date

2014-10-31

Brief Summary

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This study was designed to study safety and effectiveness of the Valiant Thoracic Stent Graft to treat thoracic aortic aneurysms.

Detailed Description

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The aorta is a large blood vessel that carries blood away from the heart to the organs in the rest of the body. An aneurysm is a weakening in the artery wall that will become a bulge in the aorta. If left untreated, this bulge may continue to grow larger and may rupture (break open) with fatal consequences. In this research study we are investigating a device that can be placed in the aorta to exclude the weakened part of the artery wall and restore blood flow. Information will be collected on the performance of the device for 5 years.

Conditions

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Thoracic Aortic Aneurysm

Keywords

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Thoracic Aneurysm Endovascular Aortic Repair (EVAR) Endovascular Stent Graft Endograft Thoracic Aortic Aneurysm Endovascular procedure Descending Thoracic Aneurysm Valiant Stent Graft System

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Valiant Thoracic Stent Graft System

160 subjects were enrolled into the study, including 157 subjects treated with the study device and three subjects classified as intent-to-treat who did not receive the study device.

There were no other arms for this study.

Group Type EXPERIMENTAL

Valiant Thoracic Stent Graft System

Intervention Type DEVICE

Surgical procedure in which a device is implanted inside the aorta, isolating the diseased area (aneurysm).

Interventions

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Valiant Thoracic Stent Graft System

Surgical procedure in which a device is implanted inside the aorta, isolating the diseased area (aneurysm).

Intervention Type DEVICE

Other Intervention Names

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Valiant device; Valiant stent graft.

Eligibility Criteria

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Inclusion Criteria

1. Subject is between the age of 18 and 85.
2. Subject must be considered a candidate for elective surgical repair of the TAA (i.e., low-to-moderate risk \[categories 0, 1, and 2\] per the modified SVS/AAVS scoring system at the time of implant). See Appendix B: Modified SVS/AAVS Medical Co-Morbidity Grading System
3. If subject is female of childbearing potential, she must have a negative pregnancy test within 7 days before the implant procedure.
4. Subject has a DTA that is:

1. A fusiform aneurysm with a maximum diameter of ≥ 5 cm OR is \> 2 times the diameter of the non-aneurysmal thoracic aorta;

AND/OR
2. Saccular aneurysm (penetrating atherosclerotic ulcer)
5. Subject's anatomy must meet all of the following anatomical criteria:

1. Subject's TAA must be ≥ 20 mm distal to the origin of the left common carotid artery and must be ≥ 20 mm proximal to the celiac artery;
2. Proximal and distal non-aneurysmal neck diameter measurements must be between 20 mm and 42 mm;
3. Proximal and distal non-aneurysmal neck must be ≥ 20 mm in length.
6. Thoracic aortic lesion is confirmed, at a minimum, by diagnostic contrast enhanced computerized tomography (CT) with optional 3-D reconstruction, and/or contrast enhanced Magnetic Resonance Angiogram obtained within four (4) months prior to the implant procedure.
7. Subject is able and willing to comply with the protocol and undergo follow-up requirements.
8. Subject or subject's legal representative understands and has signed an Informed Consent approved by the Sponsor and by the IRB for this study.
9. Subject has patent iliac or femoral arteries or can tolerate a vascular conduit that allows endovascular access to the aneurysmal site with the delivery system of the appropriate size device chosen for treatment.

Exclusion Criteria

1. Planned placement of the COVERED portion of the stent graft requires implant to occur in zones 0 or 1.
2. Subject has a thoracic aneurysm with a contained rupture.
3. Subject has a connective tissue disease (e.g., Marfan's syndrome, aortic medial degeneration).
4. Subject has a mycotic aneurysm or is suspected of having systemic infection.
5. Subject has received a previous stent or stent graft or previous surgical repair in the DTA.
6. Subject requires treatment of an infra-renal aneurysm at the time of implant.
7. Subject has a history of bleeding diathesis, coagulopathy, or refuses blood transfusion.
8. Subject has had or plans to have a major surgical procedure within 30 days before or after the Valiant Stent Graft procedure. This does not include planned procedures that are needed for the safe and effective placement of the stent graft (i.e., carotid/subclavian transposition, carotid/subclavian bypass procedure).
9. Subject has had an MI or cerebral vascular accident (CVA) within 3 months.
10. Subject is currently participating in an investigational drug or device clinical trial.
11. Subject has a known allergy or intolerance to the device components.
12. Subject has a known hypersensitivity or contraindication to anticoagulants or contrast media, which is not amenable to pre-treatment.
13. Subject has significant and/or circumferential aortic mural thrombus at either the proximal or distal attachment sites that would compromise fixation and seal of the device.
14. Subject has other medical, social, or psychological problems that, in the opinion of the investigator, preclude him or her from receiving this treatment and the procedures and evaluations pre- and post-treatment, or a limited life expectancy of less than 1 year.
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medtronic Cardiovascular

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ronald Fairman, MD

Role: PRINCIPAL_INVESTIGATOR

University of Pennsylvania

Locations

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University of Alabama at Birmingham

Birmingham, Alabama, United States

Site Status

University of Southern California - Healthcare Consultation Center

Los Angeles, California, United States

Site Status

Los Angeles Biomedical Research Institute @ Harbor-UCLA Medical Center

Torrance, California, United States

Site Status

Hartford Hospital

Hartford, Connecticut, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

University of South Florida

Tampa, Florida, United States

Site Status

Emory University Hospital

Atlanta, Georgia, United States

Site Status

Loyola University Medical Center

Maywood, Illinois, United States

Site Status

Union Memorial

Baltimore, Maryland, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

William Beaumont Hospital

Royal Oak, Michigan, United States

Site Status

Minneapolis Vascular Physicians

Plymouth, Minnesota, United States

Site Status

Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Advance Vascular Associates (Morristown Memorial Hospital)

Morristown, New Jersey, United States

Site Status

Albany Medical Center

Albany, New York, United States

Site Status

New York University Medical Center

New York, New York, United States

Site Status

Mount Sinai School of Medicine

New York, New York, United States

Site Status

University of North Carolina

Chapel Hill, North Carolina, United States

Site Status

Cleveland Clinic Foundation

Cleveland, Ohio, United States

Site Status

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status

Shadyside Hospital - University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, United States

Site Status

Baptist Memorial Hospital

Memphis, Tennessee, United States

Site Status

Baylor College of Medicine

Houston, Texas, United States

Site Status

St. Luke's Episcopal Hospital - Houston

Houston, Texas, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

Inova Fairfax Hospital

Falls Church, Virginia, United States

Site Status

Countries

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United States

References

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Conrad MF, Tuchek J, Freezor R, Bavaria J, White R, Fairman R. Results of the VALOR II trial of the Medtronic Valiant Thoracic Stent Graft. J Vasc Surg. 2017 Aug;66(2):335-342. doi: 10.1016/j.jvs.2016.12.136. Epub 2017 Mar 30.

Reference Type DERIVED
PMID: 28366302 (View on PubMed)

Other Identifiers

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Investigational Plan #078

Identifier Type: -

Identifier Source: org_study_id