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SUPER Study; SUPERvised Exercise or Angioplasty for Intermittent Claudication Due to an Iliac Artery Obstruction. (SUPER)

12 februari 2018 bijgewerkt door: M.J.W. Koelemaij

SUPERvised Exercise Therapy (SET) or Immediate Percutaneous Transluminal Angioplasty (PTA) for Intermittent Claudication (IC) in Patients With an Iliac Artery Obstruction: A Randomized Controlled Trial. SUPER Study

The purpose of our study is to compare the clinical effectiveness and cost-effectiveness of two treatment strategies of Intermittent Claudication (IC) due to an iliac artery obstruction: to start with SUPERvised Exercise Therapy (SET) and deferred Percutaneous Transluminal Angioplasty (PTA) in case of SET failure, or immediate PTA.

It is our hypothesis that PTA as first line treatment is more effective than SET as first line treatment with regard to maximum walking distance, quality of life and costs after one year.

Studie Overzicht

Toestand

Beëindigd

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Intermittent claudication (IC) is a manifestation of cardiovascular disease, reflected by a threefold increased risk in these patients of developing serious cardiovascular events. Treatment of patients with IC is aimed at secondary prevention of cardiovascular events by control of risk factors for atherosclerotic disease, and to improve walking distance and subsequently quality of life. Supervised Exercise Therapy (SET) and Percutaneous Transluminal Angioplasty (PTA) can effectively improve pain free walking distance, but the optimal choice of treatment, specifically in patients with an iliac artery stenosis or occlusion is unclear. PTA is attractive as initial therapy since PTA of the iliac arteries has an immediate effect and it is durable. There is a lack of evidence from randomized controlled trials (RCT) to define the optimal treatment strategy for patients with IC due to iliac artery lesions; first line treatment with SET and PTA in case of failure, or immediate iliac artery PTA.

Purpose:

To define the optimal treatment strategy of IC due to an iliac artery obstruction: To start with SET and deferred PTA in case of SET failure, or immediate PTA.

Design:

Multicenter randomized controlled trial.

Patients:

400 patients with IC due to an iliac artery stenosis or occlusion.

Interventions:

SET and PTA.

Outcomes:

Primary outcomes are quality of life (Qol) recorded with the disease specific VascuQol instrument and maximum walking distance on a standardized treadmill test with a speed of 3.2 km/h at 10% incline after 1 year.

Secondary outcomes are pain-free walking distance, generic Qol, functional status, complications, number of treatment failures and costs. Economic evaluation comprises a cost-effectiveness and cost-utility analysis from a societal perspective, with the costs per patient able to walk maximal, respectively the costs per Quality Adjusted Life-Year (QALY) as outcome measures.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

240

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Nederland
      • Almere, Nederland, 1315 RA
        • Flevoziekenhuis
      • Amsterdam, Nederland, 1105 AZ
        • Academic Medical Center
      • Amsterdam, Nederland, 1091 AC
        • Onze Lieve Vrouwe Gasthuis
      • Amsterdam, Nederland, 1081 HV
        • VU Medical Center
      • Amsterdam, Nederland, 1061 AE
        • Sint Lucas Andreas Ziekenhuis
      • Apeldoorn, Nederland, 7334 DZ
        • Gelre Ziekenhuizen
      • Arnhem, Nederland, 6815 AD
        • Ziekenhuis Rijnstate
      • Beverwijk, Nederland, 1942 LE
        • Rode Kruis Ziekenhuis
      • Deventer, Nederland, 7416 SE
        • Deventer Ziekenhuis
      • Haarlem, Nederland, 2035 RC
        • Kennemer Gasthuis
      • Hilversum, Nederland, 1213 XZ
        • Tergooiziekenhuizen
      • Hoofddorp, Nederland, 2134 TM
        • Spaarne Ziekenhuis
      • Nieuwegein, Nederland, 3435 CM
        • St Antonius Ziekenhuis
      • Nijmegen, Nederland, 6525 GA
        • UMC St. Radboud
      • Purmerend, Nederland, 1441 RN
        • Waterland Ziekenhuis

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  1. Age 18 years or older;
  2. Disabling claudication as defined by surgeon based on patient's history;
  3. Ankle/Brachial Index (ABI) < 0.9 or drop in ABI > 0.15 after exercise test;
  4. Hemodynamic stenosis of the common or external iliac artery on Color Duplex Scanning (CDS) (PSV ratio ≥ 2.5 or EDV ≥ 0.6 m/s) or on Magnetic Resonance Angiography (MRA) or Computed Tomography Angiography (CTA)(> 50% stenosis) or occlusion of the common or external iliac artery on CDS (PSV 0 m/s) or on MRA or CTA;
  5. Iliac artery lesion and a concomitant stenosis in the superficial femoral artery defined as stenosis > 50% by CDS (PSV ratio ≥ 2.5 or EDV ≥ 0.6 m/s) or on MRA or CTA, or occlusion on CDS (PSV 0 m/s) or MRA or CTA;
  6. Lesion classified A, B or C according to the TASC (TransAtlantic Inter-Society Consensus) classification of aortoiliac lesions;
  7. Patient is able to walk at least 2 minutes on a treadmill at 3.2 km/h and 10% incline;
  8. The Maximum Walking Distance on a treadmill < 300 meters.

Exclusion Criteria:

  1. Life expectancy < 3 months;
  2. Patient is unable to complete self-reported questionnaires (insufficiently reading or speaking the Dutch language, cognitive disorders, etc);
  3. Patient is unable to give informed consent;
  4. A documented contrast allergy;
  5. Pregnancy;
  6. Contra-indication for anticoagulant therapy;
  7. Duration of current complaints < 3 months;
  8. Occlusion of the common femoral artery at the affected side;
  9. Patient participates in another study;
  10. Heart failure or Angina Pectoris NYHA III or IV. (NYHA III: Marked limitation of physical activity. Comfortable at rest, but less than ordinary activity causes fatigue, palpitation, or dyspnea; NYHA IV: Unable to carry out any physical activity without discomfort. Symptoms of cardiac insufficiency at rest. If any physical activity is undertaken, discomfort is increased);
  11. Patient previously received Supervised Exercise Therapy (SET) according to KNGF (Dutch Society for Physiotherapists) guidelines;
  12. Renal insufficiency (serum creatinin > 150 micromol/l).

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Intervention group: Angioplasty
Angioplasty with or without stent of the iliac artery
Procedure: Percutaneous Transluminal Angioplasty
The Percutaneous Transluminal Angioplasty (PTA) procedure will be performed by an experienced interventional radiologist using a conventional guide wire and balloon catheter technique. A stent will be placed in cases in which the residual mean pressure gradient is greater than 10 mmHg across the treated site or when more than 30% stenosis after the procedure is detected. All PTA patients are encouraged perform at least three walking sessions every day.
Andere namen:
  • Endovasculaire behandeling
Actieve vergelijker: Control: Supervised Exercise Therapy
Supervised exercise therapy by a physiotherapist
Ander: Supervised Exercise Therapy
Supervised Exercise Therapy (SET) will take place in the hospital or community based according to the guidelines of the Dutch Society for Physiotherapists. The duration of the treatment will be at least 6 months and with a frequency of 2 times a week for at least 60 minutes and an intensity near maximum pain barrier (defined as pain of which it is not possible to be distracted). The frequency of the training will decrease after 3 months and the patients will receive homework, make a plan and keep a log of their exercise activities. Furthermore the program consists of walking pattern improvement and enhancement of endurance and strength. All SET patients are encouraged to perform at least three walking sessions every day on their own.
Andere namen:
  • Conservatieve behandeling

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Disease specific Quality of Life
Tijdsspanne: 12 months

Disease specific Quality of life (Qol) recorded with the disease specific VascuQol instrument 1 year after intervention.

The VascuQol will be completed at baseline and 1,6,12 months follow-up.
12 months
Maximum Walking Distance
Tijdsspanne: 12 months

Maximum walking distance on a standardized treadmill test with a speed of 3.2 km/h at 10% incline measured 1 year after intervention.

The maximum walking distance will be assessed at baseline and 1,6,12 months follow-up.
12 months

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Painfree Walking Distance
Tijdsspanne: 12 months

Painfree walking distance on a standardized treadmill test with a speed of 3.2 km/h at 10% incline 1 year after intervention.

The painfree walking distance will be assessed at baseline and 1,6,12 months follow-up.
12 months
Functional Status
Tijdsspanne: 12 months

Functional status assessed by the AMC Linear Disability Score (ALDS) 1 year after intervention.

The ALDS will be completed at baseline and 1,6,12 months follow-up.
12 months
Generic Quality of Life
Tijdsspanne: 12 months

Generic quality of life (Qol) recorded with the Short Form 36 (SF-36) and EQ-5D (former EuroQoL).

The SF-36 will be completed at baseline and 1,6,12 months follow-up. The EQ-5D will be completed at baseline, 1 week and 1,6,12 months follow-up.
12 months
Complications
Tijdsspanne: During 12 months
Complications related to both interventions during 12 months.
During 12 months
Treatment failures
Tijdsspanne: During 12 months
A treatment failure is defined as crossover to the other treatment arm.
During 12 months
Costs
Tijdsspanne: During 12 months
Costs during 1 year.
During 12 months

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

M.J.W. Koelemaij

Medewerkers

ZonMw: The Netherlands Organisation for Health Research and Development

Onderzoekers

  • Hoofdonderzoeker: Mark JW Koelemay, M.D., Ph.D, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Hoofdonderzoeker: Jim A Reekers, M.D., Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Hoofdonderzoeker: Dink A Legemate, M.D.,Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Studie directeur: Shandra Bipat, Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Nuttige links

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 november 2010

Primaire voltooiing (Werkelijk)

1 mei 2016

Studie voltooiing (Werkelijk)

1 mei 2016

Studieregistratiedata

Eerst ingediend

28 juni 2011

Eerst ingediend dat voldeed aan de QC-criteria

29 juni 2011

Eerst geplaatst (Schatting)

30 juni 2011

Updates van studierecords

Laatste update geplaatst (Werkelijk)

13 februari 2018

Laatste update ingediend die voldeed aan QC-criteria

12 februari 2018

Laatst geverifieerd

1 februari 2018

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 171102025;ZonMw
  • 09/285;METC AMC (Andere identificatie: Protocol number; IRB AMC Amsterdam)

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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