Abdominal Aortic Aneurysm Sac Healing and Prevention of Endoleaks

Study Overview
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Brief Summary
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To determine the safety and efficacy of IMPEDE-FX Embolization Plug and/or IMPEDE-FX Rapid Fill to fill an abdominal aortic aneurysm (AAA) sac outside of an endovascular aneurysm repair (EVAR) stent graft.

Official Title
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Abdominal Aortic Aneurysm Sac Healing and Prevention of Endoleaks - A Prospective Single Center Safety Study

Conditions
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Abdominal Aortic Aneurysm

Intervention / Treatment
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* Device: IMPEDE-FX Embolization Plug


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ≥18 years of age A candidate for elective EVAR of an infrarenal aortic aneurysm ≥5.5 cm in diameter in men and ≥5.0 cm in women Exclusion Criteria: An inability to provide informed consent Enrolled in another clinical study Concomitant iliac artery ectasia or aneurysm (common iliac artery diameter >24 mm) Patent AAA sac feeding vessels (within the sac) >4 mm in diameter Volume of AAA sac to be filled after stent graft placement <30 mL or >135 mL, based on pre-procedure CTA (i.e. aortic flow volume exclusive of stent graft volume) Use of aortic stent grafts other than the Gore Excluder AAA Endoprosthesis, Cook Zenith Flex AAA Endovascular Graft, Medtronic Endurant II Stent Graft, or Endologix Ovation Alto Abdominal Stent Graft System to treat the AAA Planned use of the chosen stent graft outside its instructions for use (IFU) Planned use of fenestrated or chimney stent grafts Study participants in which stent graft placement is abandoned for any reason, and/or in which the investigator decides, during the course of the stent graft placement, that the study procedure may not be appropriate Planned use of embolic devices other than the investigational product to embolize the AAA sac Vascular disease and/or anatomy that preclude the safe access and positioning of a catheter to deliver the investigational product into the AAA sac Ruptured, leaking, or mycotic (infected) aneurysm Aneurysmal disease of the descending thoracic aorta Coagulopathy or uncontrolled bleeding disorder Long-term (>6 months prior to the procedure) use of direct oral anticoagulant or any vitamin K antagonist anticoagulant use Serum creatinine level >2.5 mg/dL; Cerebrovascular accident within 3 months prior to the procedure Myocardial infarction and/or major heart surgery within 3 months prior to the procedure Atrial fibrillation that is not well rate controlled Unable or unwilling to comply with study follow-up requirements Life expectancy of <2 years post-procedure Known hypersensitivity or contraindication to platinum, iridium, or polyurethane A condition that inhibits radiographic visualization during the implantation procedure History of allergy to contrast medium that cannot be managed medically Uncontrolled co-morbid medical condition, including mental health issues, that would adversely affect participation in the study Pregnant or a lactating female. For females of child-bearing potential, based on a positive pregnancy test within 7 days prior to the procedure or refusal to use a medically accepted method of birth control for the duration of the study Prisoner or member of other vulnerable population.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention<br> | Device: IMPEDE-FX Embolization Plug<br>* Fill an abdominal aortic aneurysm (AAA) sac outside of an endovascular aneurysm repair (EVAR) stent graft<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of related major adverse events (MAEs) | Incidence of related major adverse events (MAEs) | 30 days post-procedure | 
| Efficacy - Technical Success | Technical success, defined as filling of the residual flow lumen of the AAA sac with investigational products | Immediately after the intervention | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of related major adverse events (MAEs) | Incidence of related major adverse events (MAEs) | 2 years post-procedure | 
| Incidence of related serious adverse events (SAEs) | Incidence of related serious adverse events (SAEs) | 2 years post-procedure | 
| Efficacy - Type II endoleaks | Incidence of type II endoleaks | 2 years post-procedure | 
| Efficacy - Type I and type III endoleaks | Incidence of type I and type III endoleaks | 2 years post-procedure | 
| Efficacy - AAA sac diameter/volume | Change in AAA sac diameter/volume | 2 years post-procedure | 
| Efficacy - Open repair | Rate of conversion to open AAA repair | 2 years post-procedure | 
| Efficacy - Reinterventions | Rate of other reinterventions related to the AAA sac growth and/or complications | 2 years post-procedure |