Physician Modified Endograft For Complex Aortic Aneurysm Repair

Launched by UNIVERSITY OF CALIFORNIA, SAN DIEGO · Apr 14, 2022

Keywords

ClinConnect Summary

This clinical trial is studying a new treatment option for patients with complex aortic aneurysms, which are bulges in the aorta that can be dangerous if not treated. The study is focused on a specially designed device called a physician modified endograft, which is meant for high-risk patients who cannot use standard treatments. It aims to help those with specific types of aneurysms that involve important arteries, like the renal arteries, and have certain anatomical features. The trial will enroll 40 participants over two years and will follow them for five years to see how well the treatment works and to ensure their safety.

To be eligible for this trial, participants need to be over 18 years old and have a complex aortic aneurysm that is at least 5.5 cm in diameter or has shown significant growth. They must also be unable to use currently approved devices and be at high risk for traditional surgery due to their health or previous surgeries. Throughout the study, participants will have regular check-ups, including clinical exams and imaging tests like CT scans, to monitor their condition. This trial is important because it could provide a new option for patients who currently have limited treatment choices for their condition.

Gender

ALL

Eligibility criteria

• • ---Inclusion criteria---
• • 1. Patient is \> 18 years of age
• • 2. Patients who are male or non-pregnant female (females of child bearing potential must have a negative pregnancy test prior to enrollment into the study)
• • 3. Patient is able and willing to sign an Institutional Review Board (IRB) approved Informed Consent Form
• 4. Patient has a complex, juxtarenal, pararenal or thoracoabdominal abdominal aortic aneurysm (Extent I-V) that meets at least one of the following:
• • Aortic aneurysm with diameter ≥ 5.5cm
• • Aortic aneurysm with a history of growth ≥0.5cm in the last 6 months
• • Symptomatic aortic aneurysm
• • 5. Cannot be treated with a currently available non-modified approved device
• 6. High risk for open surgical repair based on any of the factors below:
• • 1. Anatomic i. Previous abdominal surgery ii. Previous left-sided thoracotomy (if the proposed open repair would require dissection of the thoracic aorta) iii. Previous aortic surgery
• • 2. Physiologic i. ASA Category III or higher ii. Age \>70 years iii. Previous myocardial infarction, coronary artery disease, or coronary artery stent iv. Coronary stress test with a reversible perfusion defect v. Congestive heart failure vi. COPD
• • 7. Patient has patent iliac or femoral arteries that will allow endovascular access with the physician modified endovascular graft or is suitable for an iliac conduit
• • 8. Patient has a suitable non-aneurysmal proximal aortic neck length (seal zone) of ≥ 20 mm
• • 9. Patient has a suitable non-aneurysmal distal iliac artery length (seal zone) of ≥ 15 mm.
• • 10. The resultant repair should preserve patency in at least one hypogastric artery.
• • 11. Patient has a suitable non-aneurysmal proximal aortic neck diameter between 15 and 42mm
• • 12. Patient has suitable non-aneurysmal distal common iliac diameters between 7 and 20 mm.
• • ---Exclusion Criteria---
• • -General Exclusion Criteria-
• • 1. Patient has a mycotic aneurysm
• • 2. Patient has a ruptured aneurysm requiring urgent or emergent repair
• • 3. Patient has a systemic or local infection that may increase the risk of graft infection
• • 4. Patient has a body habitus that would inhibit X-ray visualization of the aorta.
• • 5. Patient is willing and eligible to participate in a manufacturer-sponsored clinical study at another institution
• • 6. Patient has a major surgical or interventional procedure planned within +/- 30 days of the (T)AAA repair.
• • 7. Patient is currently participating in another investigational device or drug clinical trial.
• • -Medical Exclusion Criteria-
• • 1. Patient has a known hypersensitivity or contraindication to anticoagulation or contrast media that is not amenable to pre-treatment.
• • 2. Patient has a known allergy or intolerance to stainless steel, polyester, polypropylene, nickel, titanium or gold.
• • 3. Patient has uncorrectable coagulopathy
• • 4. Patient has unstable angina (defined as angina with a progressive increase in symptoms, new onset at rest or nocturnal angina, or onset of prolonged angina)
• • 5. Patient has history of connective tissue disease (e.g., Marfan's or Ehler's-Danlos syndrome).
• • 6. Patient has active malignancy with life expectancy of less than 2 years
• • 7. Patient has a limited life expectancy of less than 2 years.
• • 8. Patient has other medical, social or psychological conditions that, in the opinion of the investigator, preclude them from receiving the pre-treatment, required treatment, and post-treatment procedures and evaluations.
• • -Anatomic Exclusion Criteria-
• • 1. Significant occlusive disease, tortuosity or calcification that would prevent endovascular access
• • 2. Proximal seal site with a circumferential thrombus/atheroma
• • 3. Inability to maintain at least one patent hypogastric artery
• • 4. Shaggy aorta
• • 5. Patient is not amenable to a temporary or permanent open surgical or endovascular conduit