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Status unknownNCT03334045NeuroWADUpdated Sep 23, 2022

Neurobiological Effects of Work-related Adjustment Disorder

An observational study in Adjustment Disorder With Work Inhibition, sponsored by Odense University Hospital. Status unknown at 1 site in Denmark. Open to participants aged 18 Years to 64 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-09-23.

Sponsored by Odense University Hospital · Observational

The sponsor has not verified this record recently (last verified Sep 2022), so the status shown — last known as Enrolling by invitation — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Other
Enrollment
82
Ages
18 Years to 64 Years
Sex
All
01

Study summary

INTRODUCTION: Stress is one of the greatest burdens of our society and often imply impairments in cognitive and emotional functions. The investigators hypothesize that changes in the brain's dopamine(DA)-based mesocorticolimbic projections in patients with work-related stress (adjustment disorder) will manifest in altered glucose metabolism in relation to neural activity and altered DA radiotracer binding potential at neurotransmitter and receptor level.

MATERIAL AND METHODS: Subjects and healthy controls undergo neuropsychiatric tests and PET/MR imaging with three tracers: [18F]FDG to measure glucose metabolism as a marker of neural activity, [11C]raclopride to investigate the DA binding potential in the striatum, and [11C]FLB 457 to study possible impaired mesocortical dopaminergic transmission. To demonstrate difference in glucose metabolism ≥2x41 patients/controls are needed.

OUTCOME: The investigators expect to find that symptoms of cognitive and motivational/reward deficits could be attributable to changes in frontal lobe and striatal glucose metabolism in >50% of patients and that changes in striatal D2 receptors and impaired mesocortical dopaminergic transmission in the prefrontal cortex are contributing factors.

CONCLUSION: This project aims to generate entirely new and objective evidence of stress-induced cerebral illness and provide a basis for in depth research and more rational management of this strenuous disorder.

Read the detailed description

Recruitment procedure: The department of Occupational and Environmental Medicine (DOE) at OUH have developed a screening procedure to recruit patients diagnosed according to the ICD10 F43.2x, and exposed to predominant psychosocial work stressors. The patients are recruited among women and men aged 18-64. At the DOE subjects undergo a clinical diagnostic interview based on the ICD 10 criteria including screening for stressors in the psychosocial work environment and their relationship to disease development, private life strains, personal back-ground, mental vulnerability, and competing somatic disease, as well as tests for depression and anxiety symptoms, respectively the Beck Anxiety Inventory (BAI) and Major Depression Inventory (MDI). The psychosocial work environ-ment stressors being screened for are: quantitative demands, emotional demands, role conflict, role ambiguity, sup-port and encouragement, organizational justice, adequate education and training (skill level). The experience of stressors is assessed in relation to the most dominant stress models, "demand-control-support" (Karasek), "effort and reward imbalance at work" (Siegrist), "Stress as Offense two self" (Semmer), and classical stress theory focusing on appraisal / coping (Lazarus or Ursin).

The procedure is onward going to be performed automatically in an online environment. Due to the nature of neurobiology the scans must be conducted within a fairly short time period after the initial diagnosis. Hence a declaration of consent will be presented and signed at the day of the first scan, also ensuring that all additional questions can be answered by the main investigator. The scans will be conducted within a fortnight after the fists contact. In connection with the scans, the main investigator will conduct an SCAN-PSE interview for the assessment of mental symptoms to determine if the participant's condition has changed since they decided to participate in the trial. Healthy controls are recruited and matched with regard to gender, age, educational and occupational background. Further, controls are screened for confounding factors in a similar manner as the patient group.

02

Conditions studied

  • Adjustment Disorder With Work Inhibition

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Keywords

  • Neurobiology
  • Occupational Stress
  • Dopamine
03

In context

Occupational Stress

237 studies on the registry are indexed under Occupational Stress; 64 are open to participants now.

This study's planned enrollment of 82 is below the median of 200 across 62 observational studies indexed under Occupational Stress.

Browse Occupational Stress studies →

Lead sponsor

Odense University Hospital is the lead sponsor of 480 studies on the registry; 111 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

The patients are recruited among women aged 18-64 years.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Population and controls:

  • before study-related activity
  • Aged 18 - 64
  • Labour market suitability

Study population:

  • Patients: F43.2
  • Controls: Healthy individuals that meet the following inclusion and

Exclusion criteria

Exclusion criteria.

Population, patients and controls:

  • Comorbid diagnoses as for instance: cancer, cardiovascular disease, diabetes.
  • Regular medication known to affect the central nervous system.
  • Prior exposure to violence and other serious harassment in the workplace
  • Psychosocial challenge in private life according to the screening criteria in the protocol.
  • Other serious illness
  • Metal in body
  • Claustrophobia
  • Pregnancy
  • Confounding drug consumption
  • Dependence e.g. alcohol, narcotics or other
  • Persons within a period of 1 year have participated in scientific studies that use isotopes, or who have had greater diagnostic tests that utilize ionizing radiation.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Case-control
Time perspective
Other
Enrollment
82 participants (estimated)
Target follow-up
2 Years
Patient registry
Yes

Groups and cohorts

  • Stress patients

    Patients diagnosed with work-related Adjustment disorder

    Radiation: PET/MR scans

  • Controls

    Healthy controls

    Radiation: PET/MR scans

Interventions

  • RadiationPET/MR scans

    Observations of glucose metabolism and dopamine binding potential

06

What researchers measure

Primary outcomes

  1. Glucose metabolism

    PET/MR scan

    Time frame: 3 year

Secondary outcomes

  1. Dopamine binding potential

    PET/MR scan

    Time frame: 3-4 years

07

Study locations

1 site
  • Odense University Hospital
    Odense, 5000, Denmark
08

References and documents

Publications

  • Madsen SS, Gjedde A, Brandt L, Pihl-Thingvad J, Videbech P, Gerke O, Hojlund-Carlsen PF. Neurobiological effects of work-related stress: protocol for a case-control neuroimaging study. Dan Med J. 2018 Nov;65(11):A5513. PubMed 30382017 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started May 2018 (actual). Primary completion is estimated for Mar 2023, 58 months after the start.

Of 27 observational studies under Occupational Stress, half reached primary completion within 25 months of starting (the median), counting those still running; a quarter within 4 and three quarters within 41. This study's planned 58 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 13, 2017
First posted
Nov 7, 2017
StartActual
May 1, 2018
Primary completionEst.
Mar 2023
CompletionEst.
Mar 2023
Last update
Sep 23, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 23, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03334045
Responsible party
Saga Steinmann Madsen (Clinical Engineer, Odense University Hospital) — Principal investigator
First posted
Nov 7, 2017
Start date
May 1, 2018
Primary completion
Mar 2023 (estimated)
Completion
Mar 2023 (estimated)
Last update
Sep 23, 2022

Study contacts

Saga Steinmann Madsen, Engineering
principal investigator · OUH

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2022. You cannot join it, but the record below documents what was studied.

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