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Cognitive Function Before and After Opioid Reduction in Patients With Chronic Pain (coffee-cup)

3 de julio de 2019 actualizado por: Zealand University Hospital

Cognitive Function Before and After Opioid Reduction in Patients With Chronic Pain A Prospective Cohort Study

This study aims to investigate the cognitive function of patients in the opioid reduction programme at the multidisciplinary pain centre at Zealand University Hospital Køge.

The patients will be tested before, halfway through, and after the programme.

Descripción general del estudio

Descripción detallada

The number of patients with chronic non-malignant pain is high and constant. An estimated 3-5% of the population use opioids daily. These patients have a lower quality of life and a higher use of healthcare services.

This leads to enormous costs, both human and economic. Many patients lose their ability to work, not only because of the pain, but also because of their treatment.

For a long period, opioids have been prescribed for chronic pain, even though the evidence is scarce.

A rising conscience about opioid use is on the way, and now, there is a tendency to reduce, rather than increase opioids.

The reasons are many: Constipation, inability to drive, a sense of drowsiness and no relief of pain, just to name a few. Furthermore, opioids may have decreased effect over time or may even lead to higher levels of pain.

Many patients are at first reluctant to start the reduction programme. Mostly because the patients may not be aware of the effects, the drugs are having on them. Many patients value their opioid treatment as positive and necessary, in spite of the many adverse effects.

The investigators wanted to test the cognitive function of patients before, during and after opioid reduction. The results can be used to help patients understand the deleterious effects of high opioid usage, and can also be used to motivate the individual patient along the way.

Tipo de estudio

De observación

Inscripción (Actual)

50

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

      • Holbæk, Dinamarca, 4300
        • Holbæk Hospital
      • Køge, Dinamarca, 4600
        • Zealand University Hospital

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

Método de muestreo

Muestra no probabilística

Población de estudio

Patients with chronic pain, treated with opioids and participating in the opioid reduction programme at the Multidiscipinary Pain Centre at Zealand University Hospital Køge

Descripción

Inclusion Criteria:

  • Patients > 18 years of age and able to provide a written consent
  • Participating in the opioid reduction programme

Exclusion Criteria:

  • Not able to speak and understand Danish
  • Patients suffering from dementia or psychosis

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

  • Modelos observacionales: Grupo
  • Perspectivas temporales: Futuro

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Cognitive function before opioid reduction
Periodo de tiempo: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)
At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Cognitive function at halfway point
Periodo de tiempo: When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)
When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Cognitive function at end of reduction
Periodo de tiempo: When reduction is complete (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS).
When reduction is complete (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Executive function before opioid reduction
Periodo de tiempo: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Executive function measured by Trail making test A and B
At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Executive function at halfway point
Periodo de tiempo: When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Executive function measured by Trail making test A and B
When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Executive function at end of reduction
Periodo de tiempo: When reduction is complete (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Executive function measured by Trail making test A and B
When reduction is complete (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Morphine use before reduction
Periodo de tiempo: At first visit to pain clinic (Individual date, inclusion is possible throughout study period)
Morphine equivalents before reduction
At first visit to pain clinic (Individual date, inclusion is possible throughout study period)
Morphine use after reduction
Periodo de tiempo: At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Morphine equivalents after reduction
At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Use of other analgesics before reduction
Periodo de tiempo: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Use of any other analgesic
At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Use of other analgesics at halfway point
Periodo de tiempo: When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Use of any other analgesic
When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Use of other analgesics after reduction
Periodo de tiempo: At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Use of any other analgesic
At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Quality of life before reduction
Periodo de tiempo: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Quality of life measured by SF36
At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Quality of life at halfway point
Periodo de tiempo: When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Quality of life measured by SF36
When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Quality of life at end of reduction
Periodo de tiempo: At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Quality of life measured by SF36
At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Risk of anxiety and depression before reduction
Periodo de tiempo: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Risk of anxiety and depression measured by Hospital anxiety and depression scale
At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)
Risk of anxiety and depression at halfway point
Periodo de tiempo: When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Risk of anxiety and depression measured by Hospital anxiety and depression scale
When opioids are reduced to half the dose (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 6 months)
Risk of anxiety and depression at end of reduction
Periodo de tiempo: At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)
Risk of anxiety and depression measured by Hospital anxiety and depression scale
At end of reduction (Opioid tapering is an individual process, and thus the time frame is individual, based upon morphine-reduction regimen, approximately 12 months)

Colaboradores e Investigadores

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

Investigadores

  • Investigador principal: Stine Estrup, MD, Zealand University Hospital

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 enero de 2018

Finalización primaria (Actual)

3 de mayo de 2019

Finalización del estudio (Actual)

3 de mayo de 2019

Fechas de registro del estudio

Enviado por primera vez

10 de enero de 2017

Primero enviado que cumplió con los criterios de control de calidad

25 de enero de 2017

Publicado por primera vez (Estimar)

31 de enero de 2017

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

5 de julio de 2019

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

3 de julio de 2019

Última verificación

1 de julio de 2018

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

No

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