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

12 de febrero de 2018 actualizado por: 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.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

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 de estudio

Intervencionista

Inscripción (Actual)

240

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

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

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

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).

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Intervention group: Angioplasty
Angioplasty with or without stent of the iliac artery
Procedimiento: 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.
Otros nombres:
  • Tratamiento endovascular
Comparador activo: Control: Supervised Exercise Therapy
Supervised exercise therapy by a physiotherapist
Otro: 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.
Otros nombres:
  • Tratamiento conservador

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Disease specific Quality of Life
Periodo de tiempo: 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
Periodo de tiempo: 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

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Painfree Walking Distance
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: During 12 months
Complications related to both interventions during 12 months.
During 12 months
Treatment failures
Periodo de tiempo: During 12 months
A treatment failure is defined as crossover to the other treatment arm.
During 12 months
Costs
Periodo de tiempo: During 12 months
Costs during 1 year.
During 12 months

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

M.J.W. Koelemaij

Colaboradores

ZonMw: The Netherlands Organisation for Health Research and Development

Investigadores

  • Investigador principal: Mark JW Koelemay, M.D., Ph.D, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Investigador principal: Jim A Reekers, M.D., Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Investigador principal: Dink A Legemate, M.D.,Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  • Director de estudio: Shandra Bipat, Ph.D., Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

Enlaces Útiles

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

1 de noviembre de 2010

Finalización primaria (Actual)

1 de mayo de 2016

Finalización del estudio (Actual)

1 de mayo de 2016

Fechas de registro del estudio

Enviado por primera vez

28 de junio de 2011

Primero enviado que cumplió con los criterios de control de calidad

29 de junio de 2011

Publicado por primera vez (Estimar)

30 de junio de 2011

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

13 de febrero de 2018

Última actualización enviada que cumplió con los criterios de control de calidad

12 de febrero de 2018

Última verificación

1 de febrero de 2018

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

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

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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