- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05079906
Assessment of Superficial Femoral Artery Lesions With FFR From the ACIST Navvus® Catheter (FLO THRU)
Study Overview
Status
Intervention / Treatment
Detailed Description
The ACIST Navvus Rapid Exchange FFR MicroCatheter is a rapid exchange catheter with a pressure sensor located at the distal tip that allows the operator to use their preferred standard 0.014-inch coronary guidewire for peripheral vascular intervention (PVI), eliminating the need for a wire exchange. The fractional flow reserve (FFR) measurements obtained with Navvus represent the degree of stenosis in an artery via comparison of the distal lesion value to the proximal lesion value.
While FFR has evolved as the gold standard for identifying coronary stenoses that may cause myocardial ischemia, it remains underutilized in the diagnosis and treatment of peripheral lesions. FFR cutoff values which could guide PVI decisions are yet to be defined and accepted. Routine use of FFR in patients with peripheral artery disease (PAD) may play an important role in determining the appropriateness of interventions in the peripheral vasculature by introducing a more objective assessment. Shishehbor and Agarwal further highlighted the potential economic benefit of FFR use in peripheral vessels by stating "The Affordable Care Act and higher emphasis on quality rather than quantity should support the use of [IVUS or FFR] to make peripheral interventions more accurate, safer, and better".
This study is intended to help establish standard procedures for use of FFR in the peripheral arterial system and to evaluate the correlation of post-procedural FFR values and clinical outcomes in Superficial Femoral artery (SFA) interventions in subjects ages 18 to 79 with PAD (Rutherford Classification 2, 3, 4, or 5). FFR measurements will be collected using the Navvus catheter pre- and post-PVI. A subset of study subjects will also have post-intervention IVUS imaging performed with the Kodama catheter.
Study Type
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age 18-79 at the time of planned SFA intervention
- SFA lesion requires intervention (according to ACC/AHA/SCAI/SIR/SVM 2018 Appropriate Use Criteria for Peripheral Artery Intervention, ABI, imaging, and/or clinical symptoms)
- Index SFA lesion is ≤150 mm
- Rutherford Classification of Peripheral Artery Disease (PAD) is Class 2, 3, 4, or 5
- Minimum two vessel run-off without a hemodynamically significant lesion below the treatment lesion (in at least one vessel to the foot) in the opinion of the treating physician
Exclusion Criteria:
- Study lesion is a Chronic Total Occlusion (CTO)
- Clinically significant (in the opinion of the treating physician) inflow disease of the aorta, common iliac, external iliac, or common femoral artery
- Presence of an additional hemodynamically significant stenosis within the SFA in the opinion of the treating physician
- Active cancer (any type)
- Life expectancy less than 1 year
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Main study arm
All subjects will have their SFA lesion assessed with FFR measurement.
|
Fractional Flow Reserve (FFR) for all enrolled subjects.
All interventional procedures, including FFR and HD IVUS, will be conducted in accordance with current approved User Guides and Instructions for Use.
|
Other: Sub-study
Last 50 enrolled subjects will have HD-IVUS in addition to FFR.
|
Fractional Flow Reserve (FFR) for all enrolled subjects.
All interventional procedures, including FFR and HD IVUS, will be conducted in accordance with current approved User Guides and Instructions for Use.
High Definition Intravascular Ultrasound (HD-IVUS) in addition to FFR for last 50 enrolled subjects.
All interventional procedures, including FFR and HD IVUS, will be conducted in accordance with current approved User Guides and Instructions for Use.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Post-PVI FFR
Time Frame: 6 months
|
Explore the correlation of post-PVI FFR values with other established clinical measures (i.e.
6MWT, ABI, VQ-6, WIQ, and arterial duplex US)
|
6 months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- US102
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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