Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Using modified stent grafts to treat complex aortic aneurysms in frail patients

Official title: Impact of Frailty on Clinical Outcomes of Patients Treated for Thoracoabdominal and Complex Abdominal Aortic Aneurysms With Physician-Modified Fenestrated and Branched Stent Grafts

Run by University of Southern California · NCT04524247 · Data updated 2026-11-12

This study is testing if specially designed stent grafts can safely help frail patients with complex aortic aneurysms instead of traditional surgery.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorUniversity of Southern California
Academic / other
Locations1 site (Los Angeles, California)
StatusRecruiting
StartedFebruary 23, 2021
Main results expectedJuly 2, 2028
Study endsJuly 2, 2032
Registry record updatedJuly 1, 2024
Trial IDNCT04524247 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include patients with thoracoabdominal aortic aneurysms who are anatomically suitable for fenestrated/branched stent grafts and are at high risk for traditional surgical repair.

Probably not a fit

Patients under 18 years of age or those unwilling to comply with follow-up schedules may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and effectiveness of physician-modified fenestrated and branched stent grafts for repairing thoracoabdominal and complex aortic aneurysms in patients who are at high risk for open surgery. It is a single-arm, prospective feasibility study that will assess clinical outcomes, including treatment success and major adverse events, over a period of up to five years. Additionally, the study will analyze the impact of patient frailty on these outcomes, measuring frailty levels before and after the procedure. The modifications to the stent grafts will be tailored based on 3-D imaging of the patient's anatomy.

Why it matters

Potential benefit: If successful, this approach could provide a safer and more effective treatment option for frail patients with complex aortic aneurysms.

How similar studies have gone: Other studies have shown promise with similar approaches using modified stent grafts, indicating potential for success in this area.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients may be included in the study if the patient has at least one of the following indications and are anatomically appropriate for treatment with fenestrated/branched stent grafts.

  1. Pararenal, paravisceral, and type I to IV thoracoabdominal aortic aneurysms or chronic post-dissection aneurysms with a diameter 5cm or 2 times the normal aortic diameter.
  2. Aneurysm with a history of growth ≥ 0.5cm per year.
  3. Saccular aneurysms deemed at significant risk for rupture based on physician interpretation.
  4. Symptomatic aneurysm without hemodynamic instability
  5. Aneurysms meeting any of the above criteria 1\~4, above or below the previous endovascular and/or open aortic repairs. Previously placed aortic stent graft or open aortic grafts may serve as seal zones.

Exclusion Criteria:

* Patients must be excluded from the study if any of the following conditions is true:

  1. Less than 18 years of age.
  2. Unwilling to comply with the follow-up schedule.
  3. Inability or refusal to give informed consent by the patient or a legally authorized representative.
  4. Pregnant or breastfeeding.
  5. Life-expectancy less than 2 years.
  6. Participation in another investigational clinical or device trial, with the exception of participation in another investigational endovascular stent-graft protocol and performed remotely from the fenestrated procedure (\>30 days). Examples include remote (\>30days) participation in a thoracic, or abdominal branch device trial.
  7. Eligible for treatment with FDA-approved marketed device.
  8. Eligible and willing to travel to a center with IDE protocol wherein the device is made by a manufacturer.

Where it's running

  • Keck Hospital of University of Southern California
    Los Angeles, California, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.