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Prospective Aneurysm Trial: High Angle Aorfix™ Bifurcated Stent Graft

Prospective Aneurysm Trial: High Angle Aorfix™ Bifurcated Stent Graft

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00522535
Acronym
PYTHAGORAS
Enrollment
230
Registered
2007-08-29
Start date
2006-04-30
Completion date
2020-07-31
Last updated
2021-10-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abdominal Aortic Aneurysms

Keywords

AAA, Abdominal Aortic Aneurysms, Endovascular, EVAR, Aorta, Stent Graft, Stent, Tortuous, High Angle, Angled Necks

Brief summary

Purpose of this study: The purpose of the study is to evaluate the safety and effectiveness of the Lombard Medical endovascular Aorfix™ AAA bifurcated stent graft in the treatment of abdominal aortic, aorto-iliac and common iliac aneurysms with anatomies including angled aorta, angled aneurysmal body, or both, between 0° and 90°. Study hypothesis: The primary efficacy hypothesis is the proportion of grafts remaining free from endoleak, migration, and fracture at 12 months. Efficacy: The 12 month, all cause mortality rate in the Aorfix™ group will be non-inferior to the 12 month, all cause mortality rate in the Open Control group. Safety: The rates of early serious adverse events between 0 and 30 days post-operative in the Aorfix™ groups will be non-inferior to the early serious adverse event rates between 0 and 30 days post-operative in the Open Control group.

Interventions

Open surgical repair of abdominal aortic aneurysm

Endovascular repair of abdominal aortic aneurysm (EVAR)

Sponsors

Lombard Medical
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosed abdominal aortic aneurysm \> 4.5 cm in diameter, OR 4.0 cm or larger in diameter if symptomatic (i.e. pain, embolization), OR documented AAA growth of more than 5 mm within the previous 6 months, and/or including extension into common iliac artery (ies), and/or * Iliac aneurysm greater than, or equal to 3.5 cm in maximum diameter.

Exclusion criteria

* Less than 21 years of age, * Life expectancy less than 2 years, * Pregnant, * Religious cultural or other objection to the receipt of blood or blood products, * Unwilling to comply with follow-up schedule, * Unwillingness or inability to provide informed consent to both trial and procedure. * Patients not expected to live more than 2 years from enrollment * Patient has a ruptured aneurysm * Aneurysm extends above renal arteries * Proximal neck of aneurysm has significant loose thrombus associated with it * Patient with an acute or chronic aortic dissection or mycotic aneurysm * Patient has current non-localized infection (may be recruited following remission of the infection) * Patient is allergic to device materials * Patient is allergic to or intolerant of use of contrast media and cannot be exposed to suitable remedial treatment such as steroids and/or benadryl * Patient is clinically and morbidly obese such that imaging would be severely adversely affected * Patient has renal failure (serum creatinine \> 2.5 mg/dL) * Patient has an uncorrectable bleeding abnormality * Patient has unstable angina * Patient is receiving dialysis: * Inflammatory aneurysm * MI in last 6 months * End stage COPD * Patient has connective tissue disease (eg Marfan syndrome, Ehlers-Danlos syndrome) * Significant (\>80%) renal artery stenosis which cannot be readily treated

Design outcomes

Primary

MeasureTime frameDescription
Aorfix™ vs. Open Control All Cause Mortality1 yearThe 12 month, all cause mortality rate in the Aorfix™ group compared to all cause mortality rate in the Open Control group.

Secondary

MeasureTime frameDescription
Aorfix™ vs. Open Control Adverse Events30 daysThe rates of early serious adverse events between 0 and 30 days post-operative in the Aorfix™ groups compared to the early serious adverse event rates between 0 and 30 days post-operative in the Open Control group.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026