- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02602145
Optimal Stent Selection for the Femoropopliteal Artery (SFA)
Study Overview
Detailed Description
This is an observational study of PAD patients that have already received SFA and PA stents as part of their standard of care.
The purpose of this study is to determine the effects of Peripheral Artery Disease (PAD) stenting on the femoropopliteal artery. This will be achieved through the following Specific Aims:
Aim 1. Evaluate pre-operative lower extremity CTAs of patients with PAD and determine the baseline arterial geometry and lesion characteristics.
Aim 2. Evaluate the results of intraoperative angiography and blood pressure measurements proximal and distal to the stent.
Aim 3. After stenting perform post-operative lower extremity CTA and assess the amount of in-stent restenosis and changes to the arterial geometry.
We propose to build mathematical models of human femoropopliteal arteries repaired with several of the most commonly used PAD stents and assess the mechanical stress associated with limb flexion. These models will aim at predicting disease recurrence for arteries with different patient and lesion characteristics.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Contact
- Name: Jason MacTaggart, MD
- Phone Number: 4025594395
- Email: jmactaggart@unmc.edu
Study Contact Backup
- Name: Rica McLaren, MSHSA
- Phone Number: 4025594601
- Email: rica.mclaren@unmc.edu
Study Locations
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Nebraska
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Omaha, Nebraska, United States, 68198
- University of Nebraska Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
Subjects eligible for participating in this study are patients with severe PAD who have:
- endovascular repair of their femoropopliteal artery
- standard pre-operative contrast-enhanced thin-section CTA of the lower extremities
- intraoperative angiograms and blood pressure measurements proximal and distal to the stent during the endovascular repair
- no aneurysmal disease of the target femoropopliteal artery
- no prior open or endovascular repair of the target femoropopliteal artery (patients with re-interventions are not eligible)
- at least 2 out of 3 patent crural outflow vessels
- life expectancy >6 months
- no iodinated contrast allergy
- creatinine less than 1.6 g/dL (unless on chronic dialysis, dialysis patients are eligible)
- no orthopedic prostheses in the region of interest
- ability to comply with 6-12-month follow-up contrast enhanced thin-section CTA
Exclusion Criteria:
- no endovascular repair of the femoropopliteal artery
- endovascular or open re-intervention in the target limb
- no pre-operative thin-section contrast-enhanced CTA of the target limb
- no intraoperative angiogram or blood pressure measurements proximal and distal to the stent
- aneurysmal disease of the target femoropopliteal artery
- less than 2 patent crural outflow vessels
- life expectancy ≤ 6 months
- iodinated contrast allergy
- orthopedic prosthesis in the region of interest
- creatinine greater than 1.6 g/dL (unless dialysis patient, chronic dialysis patients are eligible)
- inability to comply with 6-12-month contrast-enhanced CTA follow-up requirement
- patient belongs to vulnerable population, i.e. pregnant women, prisoners, institutionalized individuals
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Peripheral artery disease patients
Patients with peripheral artery disease who were treated with a stent as part of their standard of care.
Patients who meet the inclusion criteria (i.e.
already have a stent in their femoropopliteal artery) will be consented after their endovascular repair, and those who choose to participate in the study will be followed for 6-12 months.
During the follow-up, a post-operative contrast-enhanced CTA of the lower extremities will be obtained to assess for restenosis.
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All patients will receive PAD stents as their normal standard of care determined by their treating physician.
If the patient would decide to enroll in the study, we will perform a post-operative contrast-enhanced CTA of the lower extremities at 6-12 months after stenting.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Radius of the femoropopliteal artery lumen
Time Frame: 6-12 months
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Radius of the femoropopliteal artery lumen will be measured using follow-up CTA to assess narrowing of the artery after stent implantation.
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6-12 months
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jason MacTaggart, MD, University of Nebraska
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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