ClinicalTrials.gg
RecruitingNCT06082466Framed IVBUpdated Nov 21, 2023

FRAMED Infrainguinal Venous Bypass Versus Conventional Autologous Bypass Trial

An interventional study of FRAMED Infrainguinal Venous Bypass and Conventional Autologous Bypass in Peripheral Arterial Occlusive Disease, Femoropopliteal Artery Occlusion and Femoropopliteal Stenosis, sponsored by Paracelsus Medical University. Recruiting at 1 site in Austria. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-11-21.

Sponsored by Paracelsus Medical University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Sep 2025, 1 year 2 months ago, but the record still lists the study as recruiting.
  • Started Sep 2023; still recruiting 3 years 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
110
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

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.

Read the detailed description

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.

02

Conditions studied

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

Keywords

  • Extraluminal Bypass Stenting
  • Autologous Vein Graft
  • Bypass Extremity Graft
03

In context

Intermittent Claudication

309 studies on the registry are indexed under Intermittent Claudication; 46 are open to participants now.

This study's planned enrollment of 110 is above the median of 74 across 242 interventional studies indexed under Intermittent Claudication.

Browse Intermittent Claudication studies →

Lead sponsor

Paracelsus Medical University is the lead sponsor of 33 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

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

Exclusion criteria

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
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
110 participants (estimated)

Study arms

  • Active comparator
    Conventional Autologous Bypass

    Procedure: Conventional Autologous Bypass

  • Active comparator
    FRAMED Infrainguinal Venous Bypass

    Procedure: FRAMED Infrainguinal Venous Bypass

Interventions

  • ProcedureFRAMED Infrainguinal Venous Bypass

    The harvested vein graft will be covered with a mesh.

  • ProcedureConventional Autologous Bypass

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

06

What researchers measure

Primary outcomes

  1. Incidence of primary patency of the venous bypass

    The incidence of patency of the venous bypasses will be analysed and compared. This is defined as freedom from occlusion of the venous bypass.

    Time frame: 2 years

Secondary outcomes

  1. Incidence of procedure-related mortality

    Mortality intervention-related

    Time frame: 2 years

  2. Incidence of 30-day mortality

    Number of participants, who die within 30 days after the procedure.

    Time frame: 30 days

  3. Incidence of limb salvage after procedure

    Amputation free survival

    Time frame: 2 years

07

Study locations

1 of 1 sites recruiting
  • University Hospital of Salzburg, Paracelsus Medical University
    Salzburg, 5020, Austria
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Sep 2023 (actual). Primary completion is estimated for Sep 2025, 24 months after the start.

Of 73 non-industry interventional studies with no phase under Intermittent Claudication, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 77. This study's planned 24 months is below that.

Counting every sponsor, half of 84 studies reached it within 41 months; a quarter within 17 and three quarters within 77.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 4, 2023
First posted
Oct 13, 2023
StartActual
Sep 11, 2023
Primary completionEst.
Sep 2025
CompletionEst.
Sep 2027
Last update
Nov 21, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 21, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06082466
Lead sponsor
Paracelsus Medical University
Responsible party
Klaus Linni (Head of Division of Vascular and Endovascular Surgery, MD PD, Paracelsus Medical University) — Principal investigator
First posted
Oct 13, 2023
Start date
Sep 11, 2023
Primary completion
Sep 2025 (estimated)
Completion
Sep 2027 (estimated)
Last update
Nov 21, 2023

Study contacts

Stephanie Rassam, MD
Contact
s.rassam@salk.at
+43 572550 57506
Stephan Koter, MD, PD
Contact
s.koter@salk.at
+43 572550 55677
Stephan Koter, MD, PD
principal investigator · Senior Physician
Stephanie Rassam, MD
study director · Resident Physician
Klaus Linni, MD, PD, FEBVS
principal investigator · Head of Division

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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