FRAMED Infrainguinal Venous Bypass Versus Conventional Autologous Bypass Trial

NCT ID: NCT06082466

Last Updated: 2023-11-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

110 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-09-11

Study Completion Date

2027-09-30

Brief Summary

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The purpose of this clinical trial is to analyze patency after autologous infrainguinal bypass surgery in patients receiving a venous conduit versus a covered venous conduit.

Detailed Description

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Patients presenting to Vascular Surgical Units are usually multimorbid with increased cardiopulmonary risk. Autologous venous bypass is indicated in certain situations despite the longer duration of surgery. Optimizing patency has been an important goal since many years. Reconstruction problems are often based on intimal hyperplasia, which can be reduced via covering of the harvested vein as seen in previous studies.

This clinical trial will be conducted at our Division of Vascular Surgery and Endovascular Surgery at the University Hospital of Salzburg. Patients will be randomized into one of the two treatment options, which are a plain venous conduit or a by mesh covered venous conduit. During this clinical trial, the first follow-up will take place after 6 weeks; this corresponds to the usual follow-up interval. Due to the trial, further follow-ups will take place for each of the patients after 3 months, 6 months, 12 months, 2 years.

Conditions

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Peripheral Arterial Occlusive Disease Femoropopliteal Artery Occlusion Femoropopliteal Stenosis Critical Limb-Threatening Ischemia Claudication, Intermittent

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Conventional Autologous Bypass

Group Type ACTIVE_COMPARATOR

Conventional Autologous Bypass

Intervention Type PROCEDURE

The harvested vein graft will be used without a mesh coating.

FRAMED Infrainguinal Venous Bypass

Group Type ACTIVE_COMPARATOR

FRAMED Infrainguinal Venous Bypass

Intervention Type PROCEDURE

The harvested vein graft will be covered with a mesh.

Interventions

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FRAMED Infrainguinal Venous Bypass

The harvested vein graft will be covered with a mesh.

Intervention Type PROCEDURE

Conventional Autologous Bypass

The harvested vein graft will be used without a mesh coating.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age at least 18 years
* Informed consent form with signature
* Rutherford Category 3 (\<200m) or chronic critical ischemia (Rutherford Category 4-6)
* Assured inflow and recipient artery.

Exclusion Criteria

* Pregnant or breastfeeding women
* Active infection or sepsis
* Acute ischemia
* Endovascular procedure in the region to be treated.
* Vein with outer diameter \<3.5 mm or \>8 mm under pressure.
* Spliced Veins.
* Known allergy to the cobalt-chromium alloy (ASTM 1058) or its components (Cobalt-Chromium-Iron-Nickel-Molybdenum).
* Vasculitis
* Coagulopathy
* Radiation therapy near the anastomosis
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Paracelsus Medical University

OTHER

Sponsor Role lead

Responsible Party

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Klaus Linni

Head of Division of Vascular and Endovascular Surgery, MD PD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Stephan Koter, MD, PD

Role: PRINCIPAL_INVESTIGATOR

Senior Physician

Stephanie Rassam, MD

Role: STUDY_DIRECTOR

Resident Physician

Klaus Linni, MD, PD, FEBVS

Role: PRINCIPAL_INVESTIGATOR

Head of Division

Locations

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University Hospital of Salzburg, Paracelsus Medical University

Salzburg, , Austria

Site Status RECRUITING

Countries

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Austria

Central Contacts

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Stephanie Rassam, MD

Role: CONTACT

+43 572550 57506

Stephan Koter, MD, PD

Role: CONTACT

+43 572550 55677

Facility Contacts

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Klaus Linni, MD PD

Role: primary

Other Identifiers

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1144/2022

Identifier Type: -

Identifier Source: org_study_id