NCT05663489

Brief Summary

Obsessive-compulsive disorder (OCD) and anxiety disorders are common and debilitating conditions which are often chronic when treatment is not provided. International guidelines recommend cognitive behavioral therapy (CBT) as the first-line treatment, and research has shown that CBT can be delivered over a concentrated period of time. The Bergen 4-Day Treatment (B4DT) is an exposure-based treatment which is delivered over four consecutive days. B4DT has been shown to induce rapid and long-lasting remission in around 70% of patients. This provides a platform for studying psychological and neurobiological changes associated with treatment response and non-response. The present study will investigate longitudinal changes in psychological measures and DNA methylation in patients who receive the B4DT, as well as a subset will also undergo multimodal brain imaging.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
19mo left

Started Mar 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress84%
Mar 2018Dec 2027

Study Start

First participant enrolled

March 23, 2018

Completed
4.7 years until next milestone

First Submitted

Initial submission to the registry

December 15, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

December 23, 2022

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2024

Completed
3.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 11, 2027

Expected
Last Updated

December 23, 2022

Status Verified

December 1, 2022

Enrollment Period

6.4 years

First QC Date

December 15, 2022

Last Update Submit

December 15, 2022

Conditions

Keywords

MRIepigeneticsgenetics

Outcome Measures

Primary Outcomes (9)

  • Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

    Symptom severity of obsessive-compulsive disorder

    Before treatment

  • Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

    Symptom severity of obsessive-compulsive disorder

    approximately 10 days after treatment

  • Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

    Symptom severity of obsessive-compulsive disorder

    three months after treatment

  • Panic Disorder Severity Scale (PDSS)

    Symptom severity of panic disorder

    Before treatment

  • Panic Disorder Severity Scale (PDSS)

    Symptom severity of panic disorder

    approximately 10 days after treatment

  • Panic Disorder Severity Scale (PDSS)

    Symptom severity of panic disorder

    three months after treatment

  • Liebowitz Social Anxiety Scale (LSAS)

    Symptom severity of social anxiety disorder

    Before treatment

  • Liebowitz Social Anxiety Scale (LSAS)

    Symptom severity of social anxiety disorder

    approximately 10 days after treatment

  • Liebowitz Social Anxiety Scale (LSAS)

    Symptom severity of social anxiety disorder

    three months after treatment

Secondary Outcomes (6)

  • DNA Methylation

    Before treatment

  • DNA Methylation

    approximately 10 days after treatment

  • DNA Methylation

    three months after treatment

  • Magnetic Resonance Imaging

    Before treatment

  • Magnetic Resonance Imaging

    approximately 10 days after treatment

  • +1 more secondary outcomes

Study Arms (2)

Patients with obsessive-compulsive, social anxiety or panic disorder

Patients with obsessive-compulsive disorder. The MRI substudy will also include patients with social anxiety or panic disorder

Behavioral: Bergen 4-Day Treatment (B4DT)

For MRI substudy: Healthy controls

Healthy controls demographically matched to the patient group on age, sex and years of education

Interventions

A concentrated and exposure-based psychological treatment over four consecutive days

Patients with obsessive-compulsive, social anxiety or panic disorder

Eligibility Criteria

Age16 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study includes patients with OCD, panic disorder or social anxiety disorder which will receive the Bergen 4-Day Treatment (B4DT) in Norway. Healthy controls are also recruited for the MRI substudy

You may qualify if:

  • Diagnosed with obsessive-compulsive disorder, panic disorder or social anxiety disorder using DSM-5 criteria
  • Referred to National Clinic for 4-Day Treatment, Haukeland University Hospital, Bergen, Norway
  • Consented to participate in the "Kvalitetsregister for konsentrerte behandlingsformat"

You may not qualify if:

  • Suicidal, ongoing mania, primary eating disorder, intellectual disability, ongoing psychosis, ongoing substance abuse
  • For MRI substudy:
  • \- For the healthy controls, no previous or current psychiatric disorders as detected by the Mini International Neuropsychiatric Interview (MINI)
  • \- MRI incompatibility (e.g. pregnancy, metal implants)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Bergen Center for Brain Plasticity

Bergen, Vestland, 5009, Norway

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Saliva

MeSH Terms

Conditions

Obsessive-Compulsive DisorderPhobia, SocialPanic Disorder

Interventions

Therapeutics

Condition Hierarchy (Ancestors)

Anxiety DisordersMental DisordersPhobic Disorders

Study Officials

  • Bjarne Hansen, PhD

    Haukeland University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 15, 2022

First Posted

December 23, 2022

Study Start

March 23, 2018

Primary Completion

August 1, 2024

Study Completion (Estimated)

December 11, 2027

Last Updated

December 23, 2022

Record last verified: 2022-12

Data Sharing

IPD Sharing
Will not share

Locations