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Popliteal Artery StenosisNCT05617053

DAART vs PTA/SUPERA STENTING FOR POPLITEAL ARTERY LESIONS

An observational study of Popliteal Artery Stenosis and Atheroma, run by Vascular Investigation Network Spanish Society for Angiology and Vascular Surgery.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study was to compare the results of directional atherectomy with antirestenotic therapy (DAART technique) and angioplasty/Supera stenting for the treatment of popliteal atherectomy lesions. Read more about this study

Who is it for?
Ages 18 to 99 years
Conditions the study is for
Popliteal Artery Stenosis, Atheroma
What is being tested?
DAART and ATP/Supera stenting
Type of treatment
Medical device
How many people
143 participants
Where
No sites listed yet
Study dates
1 Jan 2016to 1 Oct 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: patients with lifestyle limiting intermittent claudication, ischemic rest pain, ischemic ulcers or gangrene (Rutherford class 3 to 6) who presented atherosclerotic lesions in the popliteal artery undergoing endovascular treatment by DAART of PTA/Supera stenting and at least a 12-months of follow-up

Who may be able to join

  • patients with lifestyle limiting intermittent claudication ischemic rest pain, ischemic ulcers or gangrene (Rutherford class 3 to 6) who presented atherosclerotic lesions in the popliteal artery undergoing endovascular treatment by DAART of PTA/Supera stenting and at least a 12-months of follow-up

Who cannot join

  • Exclusion criteria were patients who could not receive antiplatelet or anticoagulation therapies. Other exclusion criteria were patients with aneurysm of the ipsilateral superficial femoral artery or popliteal artery, acute thrombus, unsalvageable limb, very limited life-expectancy or with doubts in their willingness or capability to allow follow-up examinations.

About this study

Official title: DIRECTIONAL ATHERECTOMY WITH ANTIRESTENOTIC THERAPY vs PTA/SUPERA STENTING FOR POPLITEAL ARTERY ATHEROSCLEROTIC LESIONS: A CASE-MATCH PROPENSITY STUDY

The purpose of this study was to compare the results of directional atherectomy with antirestenotic therapy (DAART technique) and angioplasty/Supera stenting for the treatment of popliteal atherectomy lesions.

Read the detailed description

Atherectomy offers a way to improve the chances to avoid stent placement, although it did not show superiority in terms of vessel patency or limb salvage compared with POBA. Nevertheless, atherectomy can modify the plaque morphology and the mechanical properties of the baseline disease, which allows better drug penetration and diffusion into the vessel wall.

Moreover, the combination of directional atherectomy devices and drug coated balloons (directional atherectomy with antirestenotic therapy, DAART), theoretically might further improve the clinical outcomes of drug coated angioplasty. The "leave nothing behind" strategies have gained support among interventionalist. Many studies claim that atherectomy improves results when combined with adjunctive DCB.

The Supera stent, when compared with other self-expanding nitinol stents, has proven to deforms less with knee flexion and exhibits less strain. It mimics the natura structure and movement of the anatomy and optimizes luminal gain maintaining a round open lumen in challenging anatomies, as the popliteal artery. Mechanical scaffolding is often required owing to elastic recoil and flow-limiting dissections in complex popliteal lesions.

The purpose to this study was to retrospectively evaluate the efficacy of both techniques for endovascular treatment of atherosclerotic lesions of the popliteal artery.

Being tested
DAART, ATP/Supera stenting
Keywords
Popliteal artery, Drug-coated balloon, Supera stent, Directional atherectomy
Medical subject headings
Plaque, Atherosclerotic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DAARTDevice

  • ATP/Supera stentingDevice

Study groups in NCT05617053
Study groupRoleWhat they receive
DAARTPopliteal artery lesion treated by directional atherectomy with anti-restenotic therapy for the treatment of popliteal atherosclerotic lesions.
Receives: Device: DAART
ATP/Supera stentingAngioplasty and Supera stent implantation for the treatment of popliteal atherosclerotic lesions.
Receives: Device: ATP/Supera stenting

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Primary latency 12-months

    primary patency at 12-months follow-up, defined as absence of binary restenosis or reocclusion on duplex ultrasound examination without repeat target lesion interventions

    Measured: 12 months

Secondary outcomes (7)
  1. Secondary Patency

    Secondary patency was defined as requiring a secondary intervention to restore patency after occlusion of the treated segment

    Measured: 12-months

  2. Mortality

    Patients dead all-cause during follow-up

    Measured: 12-months

  3. Amputation rate

    Patients with minor or mayor amputation during follow-up

    Measured: 12-months

  4. Clinical status

    Rutherford classification clinical scale after 12-month follow-up

    Measured: 12-months

  5. ABI measurement

    Ankle/Brachial index measurement.

    Measured: 12-months

  6. Stent fracture

    Stent fracture and implantation defects were assessed by high-resolution radiographic imaging performed on the stents of every limb

    Measured: 12-months

  7. Primary-assisted patency

    Primary assisted patency was defined as a patent popliteal segment that underwent further intervention within the inflow, treated vessel segment, or outflow of the treated vessel segment to improve patency

    Measured: 12-months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Nov 2022
  2. Study start1 Jan 2016
  3. Primary completion1 Jan 2022
  4. Study completion1 Oct 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
143 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05617053
Sponsor's protocol ID
PI 22-2967
Status last verified
Nov 2022
First submitted
1 Nov 2022
Last updated
15 Nov 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Popliteal Artery Stenosis and Atheroma, run by Vascular Investigation Network Spanish Society for Angiology and Vascular Surgery.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Nov 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary latency 12-months (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Nov 2022.

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