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

12 febbraio 2018 aggiornato da: 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.

Panoramica dello studio

Stato

Terminato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

240

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

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

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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).

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Intervention group: Angioplasty
Angioplasty with or without stent of the iliac artery
Procedura: 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.
Altri nomi:
  • Trattamento endovascolare
Comparatore attivo: Control: Supervised Exercise Therapy
Supervised exercise therapy by a physiotherapist
Altro: 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.
Altri nomi:
  • Trattamento conservativo

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Disease specific Quality of Life
Lasso di tempo: 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
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Painfree Walking Distance
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: During 12 months
Complications related to both interventions during 12 months.
During 12 months
Treatment failures
Lasso di tempo: During 12 months
A treatment failure is defined as crossover to the other treatment arm.
During 12 months
Costs
Lasso di tempo: During 12 months
Costs during 1 year.
During 12 months

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

M.J.W. Koelemaij

Collaboratori

ZonMw: The Netherlands Organisation for Health Research and Development

Investigatori

  • Investigatore principale: Mark JW Koelemay, M.D., Ph.D, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Investigatore principale: Jim A Reekers, M.D., Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Investigatore principale: Dink A Legemate, M.D.,Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Direttore dello studio: Shandra Bipat, Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 novembre 2010

Completamento primario (Effettivo)

1 maggio 2016

Completamento dello studio (Effettivo)

1 maggio 2016

Date di iscrizione allo studio

Primo inviato

28 giugno 2011

Primo inviato che soddisfa i criteri di controllo qualità

29 giugno 2011

Primo Inserito (Stima)

30 giugno 2011

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

13 febbraio 2018

Ultimo aggiornamento inviato che soddisfa i criteri QC

12 febbraio 2018

Ultimo verificato

1 febbraio 2018

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

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

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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