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 type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | University of Southern California Academic / other |
| Locations | 1 site (Los Angeles, California) |
| Status | Recruiting |
| Started | February 23, 2021 |
| Main results expected | July 2, 2028 |
| Study ends | July 2, 2032 |
| Registry record updated | July 1, 2024 |
| Trial ID | NCT04524247 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
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Keck Hospital of University of Southern California
Los Angeles, California, United States Recruiting
Study contacts
- Principal investigator: Sukgu M Han, MD, MS — University of Southern California
- Study coordinator: Katie O'Donnell, MPH
- Email: Kathleen.O'Donnell@med.usc.edu
- Phone: 323-442-6835
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Outcomes after physician-modified fenestrated and branched stent grafts for complex aortic aneurysms
This study will test whether physician-modified fenestrated and branched stent grafts are safe and effective for people with juxtarenal, pararenal, or thoracoabdominal aortic aneurysms who are high risk for open surgery.
-
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This study tests a new stent system to see if it helps people with thoracoabdominal aortic dissecting aneurysms feel better and stay safe after treatment.
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This will test whether femorofemoral bypass or left‑heart bypass works better for adults having open repair of a thoracoabdominal aortic aneurysm.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.