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Efficacity Study With the Protégé EverFlex Stent in Popliteal Lesions (DUR-POP)

30. september 2013 oppdatert av: Flanders Medical Research Program

DURABILITY-POP Study - Physician Initiated Trial Investigating the Efficacy of the Implant of Protégé EverFlex Nitinol Stents in Popliteal Lesions

This study will assess the results up to 12 months with the Protégé EverFlex stent (ev3) in patients presenting with a narrowing or blocking at the level of the knee artery, which leads to a limited walking distance, rest pain or non-healing ulcers.

Studieoversikt

Status

Fullført

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

60

Fase

  • Fase 4

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Antwerp
      • Bonheiden, Antwerp, Belgia, 2820
        • Imeldaziekenhuis
      • Edegem, Antwerp, Belgia, 2650
        • University Hospital Antwerp
    • East-Flanders
      • Dendermonde, East-Flanders, Belgia, 9200
        • A.Z. Sint-Blasius
    • Flemish Brabant
      • Tienen, Flemish Brabant, Belgia, 3300
        • Heilig-Hart Ziekenhuis

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

General Inclusion criteria

  • De novo, restenotic or reoccluded lesion located in the popliteal artery, with or without superficial femoral artery involvement
  • Patient presenting a score from 2 to 5 following Rutherford classification
  • Patient is willing to comply with specified follow-up evaluations at the specified times
  • Patient is >18 years old
  • Patient (or their legal representative) understands the nature of the procedure and provides written informed consent, prior to enrolment in the study
  • Prior to enrollment, the guidewire has crossed target lesion
  • Patient is eligible for treatment with the self-expanding nitinol EverFlex (ev3) stent

Angiographic Inclusion Criteria

  • The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation
  • The target lesion, visually estimated, has a maximal length of 14 cm and can be categorized as either a type A or B lesions according the TASC II guidelines
  • Target vessel diameter visually estimated is >3.5mm and <7.5 mm
  • There is angiographic evidence of at least one-vessel-runoff to the foot

Exclusion Criteria:

  • Presence of another stent in the target vessel that was placed during a previous procedure
  • Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis
  • Previous by-pass surgery in the same limb
  • Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated
  • Patients who exhibit persistent acute intraluminal thrombus of the proposed lesion site
  • Perforation at the angioplasty site evidenced by extravasation of contrast medium
  • Patients with known hypersensitivity to nickel-titanium
  • Patients with uncorrected bleeding disorders
  • Aneurysm located at the level of the SFA and/or popliteal artery
  • Female patient with child bearing potential not taking adequate contraceptives or currently breastfeeding
  • Life expectancy of less than twelve months
  • Ipsilateral iliac treatment before the target lesion procedure with a residual stenosis > 30% or ipsilateral iliac treatment conducted after the target lesion procedure
  • Use of thrombectomy, artherectomy or laser devices during procedure
  • Any patient considered to be hemodynamically unstable at onset of procedure
  • Patient is currently participating in another investigational drug or device study that has not completed the entire follow up period.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: nitinol stent
Protégé EverFlex stent
implantation of one Protégé EverFlex stent
Andre navn:
  • Protégé EverFlex stent

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
primary patency
Tidsramme: 12 months post-procedure
primary patency at 12 months, defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without TLR within 12 months
12 months post-procedure

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Technical success
Tidsramme: 1 day post-procedure
Technical success, defined as the ability to cross and dilate the lesion to achieve residual angiographic stenosis no greater than 30% and residual stenosis less than 50% by duplex imaging
1 day post-procedure
Primary patency rate at 6-, 12-month follow-up.
Tidsramme: 6-, 12-month follow-up
Patients that present without a hemodynamically significant stenosis at the target area on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without prior TLR are defined as being primary patent.
6-, 12-month follow-up
Clinical success
Tidsramme: 6-, 12-month follow-up
Clinical success at follow-up is defined as an improvement of Rutherford classification at 6-, 12-month follow-up of one class or more as compared to the pre-procedure Rutherford classification.
6-, 12-month follow-up
tent fracture rate at 12-month follow-up
Tidsramme: 12-month follow-up
Determined according the following classification on x-ray: Class 0 (no strut factures); Class I (single tine fracture); Class II (multiple tine factures); Class III (Stent fracture(s) with preserved alignment of the components); Class IV (Stent fracture(s) with mal-alignment of the components); Class V (Stent fracture(s) in a trans-axial spiral configuration)
12-month follow-up
Serious adverse events
Tidsramme: 1 year
Defined as any clinical event that is fatal, life-threatening, or judged to be severe by the investigator; resulted in persistent or significant disability; necessitated surgical or percutaneous intervention; or required prolonged hospitalization.
1 year

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Marc Bosiers, MD, A.Z. Sint-Blasius

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. juli 2010

Primær fullføring (Faktiske)

1. august 2012

Studiet fullført (Faktiske)

1. august 2012

Datoer for studieregistrering

Først innsendt

2. juli 2010

Først innsendt som oppfylte QC-kriteriene

8. august 2011

Først lagt ut (Anslag)

9. august 2011

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

1. oktober 2013

Siste oppdatering sendt inn som oppfylte QC-kriteriene

30. september 2013

Sist bekreftet

1. september 2013

Mer informasjon

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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