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Peripheral Artery DiseaseMARISNCT01067885

A Post-market Registry of the MARIS-stent (Invatec) Implanted in the Superficial Femoral Artery

A study testing MARIS-stent (Invatec) in people with Peripheral Artery Disease, run by Medical Care Center Prof. Mathey, Prof. Schofer, Ltd..

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 MARIS Register is a prospective, multicenter registry of implantation in the superficial femoral artery (SFA) with a CE marked stent (Maris / Invatec) intended to capture initial angiographic success, complication rate and symptomatic related revascularization by following the clinical process and duplex… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Peripheral Artery Disease
What is being tested?
MARIS-stent (Invatec)
Type of treatment
Medical device
How many people
1,051 participants
Where
No sites listed yet
Study dates
Apr 2006to Dec 2009
Phase
Interventional
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • stent implantation in SFA is possible
  • existing SFA stenosis 70-100 % (visual estimation)
  • absence of homodynamically relevant stenosis in A. poplitea
  • at least one lower limb run off vessel

Who cannot join

  • pregnancy
  • life expectancy less than 1 year
  • coagulation disorder
  • chronic anticoagulation therapy
  • active gastrointestinal bleeding
  • thrombolytic therapy within 72 hours before intervention
Show all 13Show fewer
  • hyperthyreosis
  • severe contrast agent allergy
  • allergy to concomittant medication
  • severe liver disease
  • thrombus in target lesion
  • target lesion extend into A. poplitea
  • severe calcification of target vessel, where no successful pre-dilatation is feasible

About this study

Official title: MARIS - Prospective, Multicenter Registry

The MARIS Register is a prospective, multicenter registry of implantation in the superficial femoral artery (SFA) with a CE marked stent (Maris / Invatec) intended to capture initial angiographic success, complication rate and symptomatic related revascularization by following the clinical process and duplex examinations at 6 and 12 month.

Read the detailed description

Recent data suggest that there is some evidence for a reduced restenosis rate for the implantation of a self expanding nitinol stent in the superficial femoral artery (SFA) compared to implantation of balloon expandable stents or single balloon inflation (ABSOLUTE study/FAST study).

The purpose of the Maris Register is to evaluate the primary nitinol stent implantation in an all comer population with diseased SFA.

The MARIS Register is a prospective, multicenter registry of the implantation of at least one at most five nitinol stents (Maris / Invatec) in the SFA without limitations for stenosis or occlusion length.

The registry includes 998 patients from 13 German investigational sites. Clinical data are captured on electronic case report forms

The primary endpoint is the target lesion revascularization after 12 month

Secondary endpoints are :

  • Restenosis rate > 50% according to ultrasound criteria
  • Restenosis rate > 70% according to ultrasound criteria
  • Location of restenosis (proximal, middle, distal AFS)
  • Number of stent fractures (grading according to FESTO criteria)
  • Procedure related complication rate
  • Vascular complication rate within 12 month
  • Amputations within 12 month
  • Deaths within 12 month

In order to measure the restenosis the peak systolic velocity (PSV) is to be measured in two sections during the duplex ultrasound examinations at 6 and 12 month. First measurement is performed 2cm proximal to the first stent, second measurement at the location where the maximum peak velocity over all lesions/all implanted stents is measured.

The clinical status includes the patient´s Fontaine classification.

Being tested
MARIS-stent (Invatec)
Keywords
Nitinol Stent, Superficial femoral artery, SFA, Angioplasty, peripheral artery disease, peripheral artery obstructive disease, PAOD, PAD, Peripheral Vascular Disease
Medical subject headings
Peripheral Arterial Disease, Peripheral Vascular Diseases

What participants receive

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

  • MARIS-stent (Invatec)Device

    Also called Maris nitinol stent (Invatec, Italy)

    stenting of SFA with Maris nitinol stent/s

What is being measured

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

  1. target lesion revascularization

    Measured: 1 year

Secondary outcomes (8)
  1. Restenosis rate > 50% according to ultrasound criteria

    Measured: 6 and 12 month

  2. Restenosis rate > 70% according to ultrasound criteria

    Measured: 6 and 12 month

  3. Location of restenosis (proximal, middle, distal AFS)

    Measured: 6 and 12 month

  4. Number of stent fractures (grading according to FESTO criteria)

    Measured: 12 month

  5. Procedure related complication rate

    Measured: Discharge

  6. Vascular complication rate within 12 month

    Measured: 12month

  7. Amputations within 12 month

    Measured: 12month

  8. Deaths within 12 month

    Measured: 12month

Timeline

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

  1. First posted12 Feb 2010 (estimated)
  2. Study startApr 2006
  3. Primary completionDec 2009
  4. Study completionDec 2009

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
1,051 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01067885
Sponsor's protocol ID
MARIS-01
Acronym
MARIS
Status last verified
Apr 2012
First submitted
11 Feb 2010
Last updated
12 Apr 2012
Results posted
No
Data monitoring committee
No

Publications

  • Krankenberg H, Tubler T, Sixt S, Fischer M, Schmiedel R, Schulte KL, Balzer JO, Kieback A, Fiehn E, Wittenberg G, Ali T, Tiefenbacher C, Jahnke T, Steinkamp HJ, Wegscheider K, Treszl A, Ingwersen M, Zeller T. German multicenter real-world registry of stenting for superficial femoral artery disease: clinical results and predictive factors for revascularization. J Endovasc Ther. 2014 Aug;21(4):463-71. doi: 10.1583/13-4625R.1.

    PubMed 25101571

Questions about this trial

What is this clinical trial studying?

A study testing MARIS-stent (Invatec) in people with Peripheral Artery Disease, run by Medical Care Center Prof. Mathey, Prof. Schofer, Ltd..

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 4 inclusion and 13 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 12 Apr 2012. 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?

target lesion revascularization (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01067885, which also lists 1 linked publication.

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 12 Apr 2012.

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