Actively Recruiting
Physician Initiated Trial Investigating ESAR and FEVAR for Treatment of Aortic Aneurysms With Short Infrarenal Neck
Led by FCRE (Foundation for Cardiovascular Research and Education) · Updated on 2026-05-22
204
Participants Needed
33
Research Sites
313 weeks
Total Duration
On this page
Sponsors
F
FCRE (Foundation for Cardiovascular Research and Education)
Lead Sponsor
M
Medtronic
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating two types of endovascular treatments for abdominal aortic aneurysms with short aortic necks measuring between 4 to 15 millimeters. The study compares the safety and performance of Endovascular Aneurysm Repair with EndoAnchor system (ESAR) using Endurant plus Heli-FX EndoAnchor devices against Fenestrated Endovascular Aneurysm Repair (FEVAR) using customizable grafts from Cook and Terumo. This randomized trial is sponsored by the Foundation for Cardiovascular Research and Education and focuses on patients who are not candidates for standard EVAR due to challenging anatomy. Participants are randomly assigned to receive either the ESAR treatment, which combines the Endurant II or Endurant IIs endograft with the Heli-FX EndoAnchor system, or the FEVAR treatment, which uses fenestrated grafts such as the Cook Zenith Fenestrated Graft or Terumo Fenestrated Anaconda Graft. Both treatments involve implanting devices to repair the aneurysm by reinforcing the weakened aortic wall and ensuring better sealing in difficult anatomy cases. Treatments are performed as procedures guided by imaging, and patients are monitored over time to assess the outcomes. During the study, participants undergo evaluations including imaging and clinical assessments to measure technical success within 12 months after the procedure and monitor safety by tracking major adverse events within 30 days. Additional follow-ups occur at 1, 12, 24, and 36 months to assess factors such as artery patency, endoleaks, secondary interventions, aneurysm rupture, device migration, and sac size changes. The study also reviews procedure details like contrast volume and fluoroscopy time. Participants are followed for safety and effectiveness for up to three years after treatment.
CONDITIONS
Brief Title
ShOrt neCK AAA RAndomized Trial - ESAR and FEVAR: SOCRATES
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Subject is older than 18 years
- Scheduled for primary treatment of abdominal aortic aneurysm with a healthy proximal neck length between 4 and 15 mm and minimum sealing zone length of 8 mm
- Not a candidate for standard EVAR due to challenging anatomy confirmed by Core Lab screening
- Able and willing to follow study protocol and attend follow-up visits
- Provided written informed consent
- Meets anatomical requirements for Endurant II/IIs stent graft, Heli-FX EndoAnchor, Terumo Fenestrated Anaconda (EU only), and/or Cook Zenith Fenestrated Graft
- Proximal aortic neck length 4-15 mm with circumferential sealing zone of at least 8 mm
- Aortic neck diameter between 19 and 31 mm
- Infrarenal neck angulation 45 degrees or less
You will not qualify if you...
- Participating in another study that may affect results
- Life expectancy less than 2 years
- Female of childbearing potential without excluded pregnancy
- Estimated glomerular filtration rate below 30 mL/min/m2 or on dialysis
- Heart attack or stroke within 3 months before procedure
- Known connective tissue disease
- Known allergies to anticoagulants, antiplatelets, contrast media, or device materials not treatable
- Prior endovascular or open surgery for abdominal aortic aneurysm
- Need for emergency aneurysm treatment such as trauma or rupture
- Aneurysm types: suprarenal, pararenal, thoracoabdominal, mycotic, inflammatory, pseudoaneurysm
- Proximal aneurysm neck thrombus or calcification over 50%
- Renal artery narrowing over 50%
- Active infection or history of COVID-19 with complications or hospitalization
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Procedure day
Participants receive either ESAR treatment with Endurant endograft and Heli-FX Endoanchors or FEVAR treatment with fenestrated endografts as part of the trial intervention.
1 visit (procedure day, in-person)
Duration - 30 days post-procedure
Participants are monitored for safety and effectiveness outcomes including adverse events and technical success up to 30 days post-procedure.
Approximately 1 follow-up visit within 30 days
Duration - Up to 36 months post-procedure
Participants undergo scheduled assessments to monitor visceral artery patency, aneurysm status, and stent graft performance at 1, 12, 24, and 36 months after the procedure.
Visits at 1, 12, 24, and 36 months post-procedure
Trial Site Locations
Total: 33 locations
1
UCSD Medical Center Hillcrest
La Jolla, California, United States, 92037
Actively Recruiting
2
Stanford University
Stanford, California, United States, 94305
Actively Recruiting
3
University of Florida
Gainesville, Florida, United States, 32608
Actively Recruiting
4
Corewell Health (Spectrum)
Grand Rapids, Michigan, United States, 49503
Actively Recruiting
5
Mount Sinai Hospital
New York, New York, United States, 10029
Actively Recruiting
6
Oklahoma Heart
Tulsa, Oklahoma, United States, 74104
Actively Recruiting
7
Providence Portland Medical Center
Portland, Oregon, United States, 97213
Actively Recruiting
8
Allegheny General Hospital
Pittsburgh, Pennsylvania, United States, 14212
Actively Recruiting
9
Sentara Norfolk General Hospital
Norfolk, Virginia, United States, 23507
Actively Recruiting
10
Hospital Ottakring, Institute for Vascular Surgery
Vienna, Austria, 1160
Actively Recruiting
11
CRC thoracic Vascular Surgery, ZOL Genk
Genk, Belgium, 3600
Actively Recruiting
12
Universitair Ziekenhuis Gent, Thoracale en vasculaire heelkunde
Ghent, Belgium, 9000
Actively Recruiting
13
Jessa Ziekenhuis
Hasselt, Belgium, 3500
Actively Recruiting
14
Amrois Paré Hospital (APHP)
Boulogne, France
Actively Recruiting
15
Service de Chirurgie Vasculaire et Endovasculaire CHU Gabriel-Montpied 58 rue Montalembert
Clermont-Ferrand, France, 63003
Actively Recruiting
16
Hospices Civils de lyon - Hôpital Edouard Herriot
Lyon, France
Actively Recruiting
17
Centre Hospitalier Universitaire de Rennes
Rennes, France
Actively Recruiting
18
University Hospital RWTH Aachen
Aachen, Germany, 52074
Actively Recruiting
19
University Hospital Leipzig
Leipzig, Germany, 04109
Actively Recruiting
20
Klinikum der Technischen Universität München
München, Germany, 81675
Actively Recruiting
21
Martin Austermann
Münster, Germany, 48145
Completed
22
University of Bologna, IRCCS S. Orsola Hospital,
Bologna, Italy, 40138
Actively Recruiting
23
Az. Ospedaliera San Martino, Genova
Genova, Italy, 16132
Actively Recruiting
24
IRCCS Ospedale San Raffaele, Chirurgia Vascolare
Milan, Italy, 20132
Actively Recruiting
25
Vascular Endovascular Surgery University of Perugia;
Perugia, Italy, 06100
Not Yet Recruiting
26
Az.Osped.Univers.S.Giovanni, Turin
Turin, Italy, 10154
Actively Recruiting
27
Azienda Ospedaliera Universitaria Integrata di Verona
Verona, Italy
Actively Recruiting
28
VUMC Amsterdam
Amsterdam, Netherlands
Not Yet Recruiting
29
Catharina Ziekenhuis
Eindhoven, Netherlands
Not Yet Recruiting
30
National Institute of Cardiology Warzwa
Warsaw, Poland, 04-628
Actively Recruiting
31
Hospital Ramon Y Cajal
Madrid, Spain
Actively Recruiting
32
HOSPITAL CLINICO UNIVERSITARIO Valladolid
Valladolid, Spain, 47003
Actively Recruiting
33
Inselspital Bern, Universitätsklinik für Gefässchirurgie
Bern, Switzerland, 3010
Not Yet Recruiting
Research Team
K
Karlotta Knuth
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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