Obsessive-Compulsive Disorder, Panic Disorder, Social Anxiety Disorder
Conditions
Keywords
MRI, epigenetics, genetics
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.
Detailed description
The primary study will include 500 OCD patients who will receive the B4DT. Symptom severity will be prospectively measured before treatment, approximately 10 days after treatment and three months after treatment. Saliva samples will be collected for later extraction of DNA methylation during the first day of treatment, the last day of treatment, and three months after treatment. A substudy will use multimodal magnetic resonance imaging (MRI) before treatment, approximately 10 days after treatment and three months after treatment. The substudy will also 100 patients with social anxiety disorder or panic disorder for DNA methylation and MRI, as well as 50 healthy controls for MRI. Clinical data will be collected from a consent-based quality register (Kvalitetsregister for konsentrerte behandlingsformat). The aim of the study is to investigate changes in DNA methylation as well as functional and structural brain networks that occur in patients undergoing B4DT, and to correlate these changes with immediate and long-term response to treatment.
Interventions
BEHAVIORALBergen 4-Day Treatment (B4DT)
A concentrated and exposure-based psychological treatment over four consecutive days
Sponsors
University of Oslo
Amsterdam UMC, location VUmc
University of North Carolina, Chapel Hill
Harvard Medical School (HMS and HSDM)
University of Bergen
Oslo University Hospital
Haukeland University Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* 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
Exclusion criteria
* Suicidal, ongoing mania, primary eating disorder, intellectual disability, ongoing psychosis, ongoing substance abuse For MRI substudy: Inclusion Criteria: \- For the healthy controls, no previous or current psychiatric disorders as detected by the Mini International Neuropsychiatric Interview (MINI)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Yale-Brown Obsessive Compulsive Scale (Y-BOCS) | Before treatment | Symptom severity of obsessive-compulsive disorder |
| Panic Disorder Severity Scale (PDSS) | Before treatment | Symptom severity of panic disorder |
| Liebowitz Social Anxiety Scale (LSAS) | Before treatment | Symptom severity of social anxiety disorder |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| DNA Methylation | Before treatment | Samples of saliva will be collected for genome-wide methylation and profiling will be carried out using the Illumina Infinium MethylationEPIC BeadChip system |
| Magnetic Resonance Imaging | Before treatment | Brain functional and structural MRI will be collected for a subset of 100 OCD and 100 anxiety disorder patients as well as 50 healthy controls |
Countries
Norway
Contacts
Primary ContactBjarne Hansen, PhD
Outcome results
None listed