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Chronic Nonmalignant Paincoffee-cupNCT03036917

Cognitive Function Before and After Opioid Reduction in Patients With Chronic Pain

An observational study of Chronic Nonmalignant Pain and Cognitive Impairment, run by Zealand University Hospital at 2 sites in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older
How many people
50 participants
Where
2 sitesDenmark
Study dates
1 Jan 2018to 3 May 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

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

Who may be able to join

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

Who cannot join

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

Trial locations and contacts

2 sites in 1 country.

Denmark2 sites
  • Holbæk Hospital

    Holbæk, 4300

  • Zealand University Hospital

    Køge, 4600

Other trials in Denmark

About this study

Official title: 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.

Read the detailed description

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.

Medical subject headings
Cognitive Dysfunction, Opioid-Related Disorders

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cognitive function before opioid reduction

    Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)

    Measured: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

Secondary outcomes (16)
  1. Cognitive function at halfway point

    Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)

    Measured: 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)

  2. Cognitive function at end of reduction

    Cognitive function measured with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS).

    Measured: 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)

  3. Executive function before opioid reduction

    Executive function measured by Trail making test A and B

    Measured: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

  4. Executive function at halfway point

    Executive function measured by Trail making test A and B

    Measured: 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)

  5. Executive function at end of reduction

    Executive function measured by Trail making test A and B

    Measured: 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)

  6. Morphine use before reduction

    Morphine equivalents before reduction

    Measured: At first visit to pain clinic (Individual date, inclusion is possible throughout study period)

  7. Morphine use after reduction

    Morphine equivalents after reduction

    Measured: 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)

  8. Use of other analgesics before reduction

    Use of any other analgesic

    Measured: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

  9. Use of other analgesics at halfway point

    Use of any other analgesic

    Measured: 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)

  10. Use of other analgesics after reduction

    Use of any other analgesic

    Measured: 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)

  11. Quality of life before reduction

    Quality of life measured by SF36

    Measured: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

  12. Quality of life at halfway point

    Quality of life measured by SF36

    Measured: 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)

  13. Quality of life at end of reduction

    Quality of life measured by SF36

    Measured: 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)

  14. Risk of anxiety and depression before reduction

    Risk of anxiety and depression measured by Hospital anxiety and depression scale

    Measured: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)

  15. Risk of anxiety and depression at halfway point

    Risk of anxiety and depression measured by Hospital anxiety and depression scale

    Measured: 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)

  16. Risk of anxiety and depression at end of reduction

    Risk of anxiety and depression measured by Hospital anxiety and depression scale

    Measured: 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)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Jan 2017 (estimated)
  2. Study start1 Jan 2018
  3. Primary completion3 May 2019
  4. Study completion3 May 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03036917
Sponsor's protocol ID
SE-4-2016
Acronym
coffee-cup
Status last verified
Jul 2018
First submitted
10 Jan 2017
Last updated
5 Jul 2019
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Nonmalignant Pain and Cognitive Impairment, run by Zealand University Hospital at 2 sites in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cognitive function before opioid reduction (time frame: At first visit to pain clinic (Day 1)(Individual date, inclusion is possible throughout study period)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jul 2019.

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