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Abdominal Aortic AneurysmLEOPARDNCT02407457

Post-Market Study to Assess Outcomes of Patients Treated With AFX System Compared to Other EVAR Devices

A study testing AFX EVAR AAA Graft System and FDA Approved EVAR AAA Graft Systems in people with Abdominal Aortic Aneurysm, run by Endologix at 56 sites in United States.

Completed

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

Official record
Search all trials

Trial summary

The objective of this post-market trial is to evaluate Endologix AFX endovascular AAA system with anatomical fixation against other approved Endovascular systems with proximal fixation. Multiple U.S clinical centers will be involved in the trial to include a broad range of experience. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Abdominal Aortic Aneurysm
What is being tested?
AFX EVAR AAA Graft System and FDA Approved EVAR AAA Graft Systems
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
455 participants
Where
56 sitesUnited States
Study dates
Mar 2015to Oct 2022
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female at least 18 years old
  • Subjects with minimum of 2 year life expectancy
  • Subjects have signed the informed consent document for data release
  • Subjects with infrarenal AAA who are assessed by the Investigator to be eligible for endovascular Abdominal Aortic Aneurysm Repair with the trial devices.

Who cannot join

  • Currently participating in another study where primary endpoint has not been reached yet
  • Known allergy to any of the device components
  • Pregnant (females of childbearing potential only)
  • Subjects with pre-existing EVAR, e.e. in need of repair/intervention of a previously failed EVAR

Trial locations and contacts

56 sites in 1 country.

56 sites in 1 country

United States56 sites
  • The Vascular Group

    Albany, New York, 12208

  • Emory/Grady

    Atlanta, Georgia, 30303

  • Cardiothoracic & Vascular Surgeons

    Austin, Texas, 78756

  • VA Maryland Health Care System

    Baltimore, Maryland, 21201

  • Cardiovascular Research Foundation of Louisiana

    Baton Rouge, Louisiana, 70808

  • Baton Rouge Vascular Specialty Center

    Baton Rouge, Louisiana, 70809

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • VA Western New York Healthcare System

    Buffalo, New York, 14215

  • University of Vermont Medical Center

    Burlington, Vermont, 05401

  • University Hospitals Cleveland Medical Center

    Cleveland, Ohio, 44106

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • Penrose St. Francis Health

    Colorado Springs, Colorado, 80907

  • University of Missouri

    Columbia, Missouri, 65212

  • Geisinger Medical Center

    Danville, Pennsylvania, 17822

  • Eliza Coffee Medical Center

    Florence, Alabama, 35630

  • Parkview Research Center

    Fort Wayne, Indiana, 46845

  • Hattiesburg Clinic

    Hattiesburg, Mississippi, 39402

  • University of Texas Health

    Houston, Texas, 77030

  • Huntsville Hospital

    Huntsville, Alabama, 35801

  • Franciscan - St. Francis Hospital

    Indianapolis, Indiana, 46237

  • University of Iowa Healthcare

    Iowa City, Iowa, 52246

  • Mayo Jacksonville

    Jacksonville, Florida, 32224

  • Innovation Center, Kettering Health Network

    Kettering, Ohio, 45429

  • Central Arkansas Veteran's Healthcare System

    Little Rock, Arkansas, 72205

  • Long Beach VA Hospital

    Long Beach, California, 90822

  • Surgical Care Associates

    Louisville, Kentucky, 40207

  • Navicent Health Medical Center

    Macon, Georgia, 31201

  • University of Wisconsin

    Madison, Wisconsin, 53792

  • Mount Sinai Medical Center

    Miami Beach, Florida, 33140

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53226

  • Clement J. Zablocki VA Medical Center

    Milwaukee, Wisconsin, 53295

  • Hartford Hospital

    New Britain, Connecticut, 61110

  • Yale University

    New Haven, Connecticut, 48097

  • Sentara Vascular Specialists

    Norfolk, Virginia, 23507

  • Kansas City Vascular

    North Kansas City, Missouri, 64116

  • Vascular Institute of Central Florida

    Orlando, Florida, 32803

  • Hospital of the University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Thomas Jefferson University

    Philadelphia, Pennsylvania, 19107

  • Banner Good Samaritan Hospital

    Phoenix, Arizona, 85006

  • Sacramento Vascular Sugeons

    Sacramento, California, 95816

  • Peninsula Regional Medical Center

    Salisbury, Maryland, 21801

  • Kaiser - Santa Clara

    Santa Clara, California, 95051

  • Sarasota Vascular Specialists

    Sarasota, Florida, 34232

  • North Central Heart

    Sioux Falls, South Dakota, 57108

  • Prairie Education & Research Cooperative

    Springfield, Illinois, 62701

  • Saint Louis University

    St Louis, Missouri, 63124

  • Peachtree Vascular Specialists

    Stockbridge, Georgia, 30281

  • USF/Tampa VA

    Tampa, Florida, 33606

  • Carondelet Heart and Vascular Institute

    Tucson, Arizona, 85745

  • North MS Medical Center

    Tupelo, Mississippi, 38801

  • Peacehealth Southwest Medical Center

    Vancouver, Washington, 98664

  • The Iowa Clinic Cardiovascular Services

    West Des Moines, Iowa, 50266

  • Neo Vascular (Lake West)

    Willoughby, Ohio, 44094

  • Cadence Physician Group

    Winfield, Illinois, 60190

  • Wake Forest

    Winston-Salem, North Carolina, 27157

  • St. Joseph Mercy Ann Arbor

    Ypsilanti, Michigan, 48197

Other trials in United States

About this study

Official title: Multicenter, Post-Market Study to Assess Outcomes of Patients Treated With the AFX System Compared to Other EVAR Devices for Endovascular Abdominal Aortic Aneurysm Repair: LEOPARD

The objective of this post-market trial is to evaluate Endologix AFX endovascular AAA system with anatomical fixation against other approved Endovascular systems with proximal fixation. Multiple U.S clinical centers will be involved in the trial to include a broad range of experience. Imaging data will be evaluated by an independent core lab.

Read the detailed description

This trial is a prospective, randomized, multi-center trial, intended to evaluate the outcomes of contemporary EVAR (Endovascular Aneurysm Repair) in a real world population. The trial is designed to compare the anatomically stabilized AFX Endograft System to a reference group of proximally fixated EVAR devices. Patients will be randomized between the two groups.

Randomization will be 1:1. Each investigator will select one comparator device of their choice before enrolling the first patient. The study will sequentially evaluate non-inferiority and superiority hypotheses.

Up to 80 sites with experience in EVAR and up to 800 subjects will participate in this study.

Being tested
AFX EVAR AAA Graft System, FDA Approved EVAR AAA Graft Systems
Medical subject headings
Aortic Aneurysm, Abdominal

What participants receive

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

  • AFX EVAR AAA Graft SystemDevice

    Endvovascular Abdominal Aneurysm Repair (EVAR) using commerically available, FDA approved endovascular graft systems implanted via femoral access.

  • FDA Approved EVAR AAA Graft SystemsDevice

Study groups in NCT02407457
Study groupRoleWhat they receive
AFX EVAR AAA Graft SystemActive comparatorSubjects randomized to receive the Endologix AFX Endovascular Graft System for implantation to repair Abdominal Aortic Aneurysm via femoral access.
Receives: Device: AFX EVAR AAA Graft System
FDA Approved EVAR AAA Graft SystemsActive comparatorSubjects randomized to receive the comparator AAA Endovascular Graft System for implantation to repair Abdominal Aortic Aneurysm via femoral access.
Receives: Device: FDA Approved EVAR AAA Graft Systems

What is being measured

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

  1. Number of Patients With Absence of Aneurysm Related Complications (ARC)

    ARC is a composite of the most relevant EVAR outcomes and includes:

    • Peri-Operative Death (< 30 days)
    • Rupture
    • Conversion to OSR
    • Endoleaks; post-operative
    • Migration (≥ 10mm)
    • Aneurysm Enlargement (≥ 5mm)
    • Endograft Limb Occlusions
    • Reinterventions for device- or aneurysm-related complications

    Measured: 1 year

Secondary outcomes (14)
  1. The Number of MAEs

    Major Adverse Events

    Measured: At 30 days, 12 months, and annually up to five years

  2. The Number of Participants With Aneurysm Related Complications (ARC)

    ARC is a composite outcome

    Measured: Post 12 Months up to Five Years

  3. The Number of Participants With Aneurysm Related Mortality

    Death related to the aneurysm

    Measured: Up to Five Years

  4. Number of Type Ia Endoleaks

    Number of participants with Type Ia endoleaks at 12 months, 24 months, 36 months, 48 months and 60 months. Type Ia endoleak defined as persistent leak around the top of the stent graft identified during imaging surveillance at the different timepoints.

    Measured: Up to Five Years

  5. Number of Type Ib Endoleaks

    Number of participants with Type Ib endoleaks at 12 months, 24 months, 36 months, 48 months and 60 months. Type Ib endoleak defined as persistent leak around the bottom of the stent graft identified during imaging surveillance at the different timepoints.

    Measured: Up to Five Years

  6. Number Endoleaks Type II

    Number of participants with Type II endoleaks at 12 months, 24 months, 36 months, 48 months and 60 months. Type II endoleak defined as persistent blood flow into the aneurysm sac from branches of the aorta identified during imaging surveillance at the different timepoints.

    Measured: Up to Five Years

  7. Number of Endoleaks Type IIIa

    Number of participants with Type IIIa endoleaks at 12 months, 24 months, 36 months, 48 months and 60 months. Type IIIa endoleak defined as persistent leak from the overlapping parts of the stent graft identified during imaging surveillance at the different timepoints.

    Measured: Up to Five Years

  8. Number of Endoleaks Type IIIb

    Number of participants with Type IIIb endoleaks at 12 months, 24 months, 36 months, 48 months and 60 months. Type IIIb endoleak defined as persistent leak as a consequence of graft rupture, identified during imaging surveillance at the different timepoints.

    Measured: Up to Five Years

  9. Number of Participants With Aneurysm Rupture

    Number of Participants with Aneurysm Rupture at 12 Months, 24 Months, 36 Months, 48 Months and 60 Months

    Measured: 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

  10. Number of Participants With Open Conversion

    Number of Participants that underwent an Open Conversions at 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

    Measured: 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

  11. Number of Participants With Aneurysm Expansion

    Number of Participants with Aneurysm Expansion at 12 Months, 24 Months, 36 Months, 48 months, 60 Months

    Measured: 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

  12. Number of Patients With Endograft Occlusion

    Number of Patients with Endograft Occlusion at 12 Months, 24 Months, 36 Months, 48 Months and 60 Months

    Measured: 12 Months, 24 Months, 36 Months, 48 Months and 60 Months

  13. Number of Participants With Device-Related Secondary Interventions

    Number of Participants with Device-Related Secondary Interventions at 30 days, 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

    Measured: 30 days, 12 Months, 24 Months, 36 Months, 48 Months, 60 Months

  14. Number of Patients With Adjunctive Procedures

    Number of patients with adjunctive procedure during the implant

    Measured: Intraprocedural

Timeline

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

  1. First posted3 Apr 2015 (estimated)
  2. Study startMar 2015
  3. Primary completionOct 2018
  4. Study completionOct 2022

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
455 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02407457
Sponsor's protocol ID
CP-0011
Acronym
LEOPARD
Status last verified
Sep 2024
First submitted
6 Mar 2015
Last updated
1 Oct 2024
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Prinssen M, Verhoeven EL, Buth J, Cuypers PW, van Sambeek MR, Balm R, Buskens E, Grobbee DE, Blankensteijn JD; Dutch Randomized Endovascular Aneurysm Management (DREAM)Trial Group. A randomized trial comparing conventional and endovascular repair of abdominal aortic aneurysms. N Engl J Med. 2004 Oct 14;351(16):1607-18. doi: 10.1056/NEJMoa042002.

    PubMed 15483279
  • Volodos' NL, Karpovich IP, Shekhanin VE, Troian VI, Iakovenko LF. [A case of distant transfemoral endoprosthesis of the thoracic artery using a self-fixing synthetic prosthesis in traumatic aneurysm]. Grudn Khir. 1988 Nov-Dec;(6):84-6. No abstract available. Russian.

    PubMed 3220297
  • Greenhalgh RM, Brown LC, Kwong GP, Powell JT, Thompson SG; EVAR trial participants. Comparison of endovascular aneurysm repair with open repair in patients with abdominal aortic aneurysm (EVAR trial 1), 30-day operative mortality results: randomised controlled trial. Lancet. 2004 Sep 4-10;364(9437):843-8. doi: 10.1016/S0140-6736(04)16979-1.

    PubMed 15351191
  • Brown LC, Greenhalgh RM, Thompson SG, Powell JT; EVAR Trial Participants. Does EVAR alter the rate of cardiovascular events in patients with abdominal aortic aneurysm considered unfit for open repair? Results from the randomised EVAR trial 2. Eur J Vasc Endovasc Surg. 2010 Apr;39(4):396-402. doi: 10.1016/j.ejvs.2010.01.002. Epub 2010 Jan 21.

    PubMed 20096611
  • Stroupe KT, Lederle FA, Matsumura JS, Kyriakides TC, Jonk YC, Ge L, Freischlag JA; Open Versus Endovascular Repair (OVER) Veterans Affairs Cooperative Study Group. Cost-effectiveness of open versus endovascular repair of abdominal aortic aneurysm in the OVER trial. J Vasc Surg. 2012 Oct;56(4):901-9.e2. doi: 10.1016/j.jvs.2012.01.086. Epub 2012 May 27.

    PubMed 22640466
  • De Bruin JL, Baas AF, Buth J, Prinssen M, Verhoeven EL, Cuypers PW, van Sambeek MR, Balm R, Grobbee DE, Blankensteijn JD; DREAM Study Group. Long-term outcome of open or endovascular repair of abdominal aortic aneurysm. N Engl J Med. 2010 May 20;362(20):1881-9. doi: 10.1056/NEJMoa0909499.

    PubMed 20484396
  • Kwolek CJ, Ouriel K, Stucky FS, Rao VK, Pons PJ, Wilson SE, Kujath SW. Five-year results of the LEOPARD trial of commercially available endografts. J Vasc Surg. 2023 Aug;78(2):324-332.e2. doi: 10.1016/j.jvs.2023.04.011. Epub 2023 Apr 15.

    PubMed 37068528

Questions about this trial

What is this clinical trial studying?

A study testing AFX EVAR AAA Graft System and FDA Approved EVAR AAA Graft Systems in people with Abdominal Aortic Aneurysm, run by Endologix at 56 sites in United States.

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 4 inclusion and 4 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 1 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 56 sites in United States. 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?

Yes. Results are posted in the registry (first posted 21 Sep 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Patients With Absence of Aneurysm Related Complications (ARC) (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 NCT02407457, which also lists 7 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 1 Oct 2024.

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