NCT02277080

Brief Summary

The primary aim is to investigate the dose and time dependent effects of different opioids on the immune and endocrine systems. The secondary aim is to investigate whether associations between the function of the immune and endocrine systems and opioid use influence cognitive function, pain and quality of life.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
82

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Sep 2014

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2014

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 22, 2014

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 28, 2014

Completed
6.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2021

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 28, 2022

Completed
Last Updated

March 20, 2023

Status Verified

March 1, 2023

Enrollment Period

6.8 years

First QC Date

October 22, 2014

Last Update Submit

March 17, 2023

Conditions

Keywords

Pain, opioids, immune system, endocrine system, quality of life

Outcome Measures

Primary Outcomes (1)

  • Dose and time dependent effects

    Differences on the mean results of endocrine and immunologic blood tests between patients and controls, considering dose and time dependent effects.

    Up to 2.5 years

Secondary Outcomes (1)

  • Function of the immune and endocrine systems

    Up to 2.5 years

Study Arms (2)

Opioid group

These patients should have been treated only with one opioid (morphine, oxycodone, fentanyl, methadone, hydromorphone, tapentadol or tramadol) for more than one month

Control group

Chronic non-cancer pain patients not treated with analgesics

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Pain patients at Multidisciplinary Pain Centre at Rigshospitalet, Denmark

CRITERIA FOR INCLUSION IN THE OPIOID GROUP * Age \>18 yrs and \<65 yrs * Chronic non-cancer pain (\>6 months' duration) * At least six years of schooling * Fluent in spoken and written Danish * On opioid treatment (\>30 mg of morphine equivalents pr. day) for at least one month CRITERIA FOR INCLUSION IN THE CONTROL GROUP * Age \>18 yrs and \<65 yrs * Chronic non-cancer pain (\>6 months' duration) * At least six years of schooling * Fluent in spoken and written Danish (no need for translator) * No analgesic treatment for the last month CRITERIA FOR EXCLUSION * Treatment with glucocorticoid or sex hormones within the previous 6 months or on-going therapy with drugs known to interfere with endocrine function * Treatment with adjuvant analgesics (anticonvulsants, antidepressants and others), NSAIDs/paracetamol, benzodiazepines and hypnotics (sleeping pills can be discontinued 3 days before testing) the last month * Known endocrine disease including insulin treated diabetes mellitus * Previously diagnosed dementia or encephalopathy * Brain trauma necessitating hospitalization within last 6 months * Previously diagnosed liver disease * Renal insufficiency (serum creatinine concentration \>140 µmol/l) * Pregnancy

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Biospecimen

Retention: SAMPLES WITH DNA

whole blood/serum

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Per Sjøgren, Proff.

    Rigshospitalet, Denmark

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, M.D., Dr. Med. Sci

Study Record Dates

First Submitted

October 22, 2014

First Posted

October 28, 2014

Study Start

September 1, 2014

Primary Completion

June 1, 2021

Study Completion

December 28, 2022

Last Updated

March 20, 2023

Record last verified: 2023-03