Precision Medicine in the Depression Treatment (BDD)

October 3, 2024 updated by: Gitte Moos Knudsen, Rigshospitalet, Denmark

The BrainDrugs-Depression Study: A Prospective Precision Psychiatry Cohort Study in the Treatment of Depression

The BrainDrugs-D study uses multimodal neuroimaging combined with self-report measures, clinical and molecular markers to identify clinically relevant predictors that can identify subtypes of major depressive disorder (MDD) and, in a naturalistic setting, predict treatment response to standard antidepressive treatment. The cohorts are followed in nationwide health registries.

Study Overview

Detailed Description

BrainDrugs-D is a cohort study of patients with major depressive disorder (MDD) who are deeply phenotyped with demographic, clinical, genetic, biochemical and neuroimaging modalities. These features are subsequently examined for their ability to identify subtypes of MDD and to predict treatment response.

Treatment and study population All participants are phenotyped before initiating a standardized 'treatment package' in out-patient clinics within the Mental Health Services in the Capital Region of Denmark. The goal is to recruit a total of 800 patients with non-psychotic MDD. We use broad inclusion criteria to enable recruitment of representative adult out-patients with non-psychotic MDD who receive standard treatment in practice.

As the study is designed with a high degree of ecological validity, it will not interfere with or delay the standard treatment package for depression. The treatment package is a national uniform package designed by Mental Health Services in the Capital Region, it has been in use since 2017, after several preceding years of clinical use and patient experience. Treatment for first-episode depression has a manualized group Cognitive-behavioural therapy (CBT) as the backbone: 2-3 hours of initial workup followed by 6 hours of individual therapy or 12 sessions of 2 hours of group therapy (8 patients per group), 1-2 hours of engagement and psychoeducation of relatives, 1-5 hours of medication clinic and 2 hours of relapse prevention. Antidepressant medication and individual psychotherapy are instituted, as needed.

Groups The study comprises three groups: The entire cohort (n=800) will have basic clinical, cognitive, psychometric, and biological data available. A subgroup (Subcohort I, n=600) provided expanded clinical, cognitive, psychometric, and biological data as well as Magnetic Resonance Imaging (MRI) and Electroencephalogram (EEG). Subcohort II, (n=60) will be exclusively for patients unmedicated at initiation, consisting of the same investigation, and contributing Positron Emission Tomography imaging with the [11C]-UCB-J tracer of synaptic density.

Follow-up All cohorts receive questionnaires assessing depression symptom severity, level of functioning, and QoL at the three follow-up time points. We also assess the side effects of psychological treatment and medication at the end of the treatment package. The cohorts are also followed in nationwide health registries.

Outcomes The primary outcome is remission (QIDS ≤5) and clinical improvement (≥50% reduction in QIDS) after 6 months.

Secondary endpoints include remission status 12 and 18 months after treatment start and change in QIDS, SCL10, WHO-5, and SDS scores from baseline to follow-ups.

Analysis We will use machine learning algorithms to determine a combination of baseline characteristics that best predict treatment outcomes and statistical models to investigate the association between individual and clinical outcomes. We will also assess associations between patient characteristics, treatment choices, and clinical outcomes using path analysis, enabling us to estimate the effect of treatment choices and timing on the clinical outcome.

Hypotheses for the whole cohort:

Primary hypotheses:

1.1 Clinical, cognitive, psychometric, genetic, and blood biomarker measures at inclusion can predict clinical remission (defined as QIDS≤5) at the first follow-up.

1.2 Clinical, cognitive, psychometric, genetic, and blood biomarker measures at inclusion can predict clinical improvement (a ≥50% reduction in QIDS from pretreatment) at the first follow-up.

Secondary hypotheses:

1.3 Composite scores across a range of clinical, cognitive, psychometric, genetic, and blood biomarker measures at inclusion can cluster patients into MDD subgroups associated with treatment trajectories and outcomes.

1.4 Clinical, cognitive, psychometric, genetic, and blood biomarker measures at inclusion are associated with clinical outcome defined as a change in QIDS.

1.5 Path analysis of baseline patient characteristics and treatment tracks can uncover causal paths for clinical improvements, i.e., estimate the effect of treatment on clinical outcomes.

Hypotheses for Subcohort I

Primary hypotheses:

2.1 MRI, fMRI, and EEG patterns at inclusion may be associated with depressive phenotypes.

2.2 Adding EEG, MRI, and fMRI measures at inclusion to the classifier model (defined in hypotheses 1.1 and 1.2) may significantly improve the prediction of clinical remission and improvement.

Secondary hypotheses:

2.3 Adding EEG, MRI, and fMRI measures at inclusion to the composite score (defined in hypothesis 1.3) may significantly improve the clustering of patients into MDD subgroups.

Hypotheses for Subcohort II

Primary hypotheses:

3.1 Cerebral [11C]-UCB-J binding is lower in patients with MDD than in healthy controls.

3.2 Domain-specific cognitive function correlates positively with [11C]-UCB-J binding in associated cortical and subcortical areas.

Secondary hypotheses:

3.1 Depression severity, anxiety, and anhedonia correlate with [11C]-UCB-J binding in associated cortical and subcortical areas.

3.2 Addition of [11C]-UCB-J binding, EEG, and MRI measures at inclusion to the composite score (defined in hypotheses 2.1) can significantly improve the prediction of clinical improvement and remission beyond clinical, cognitive, psychometric, fluid biomarker, EEG, and MRI measures in antidepressant naïve patients.

Study Type

Observational

Enrollment (Estimated)

800

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Copenhagen, Denmark, 2100
        • Recruiting
        • Neurobiology Research Unit, Rigshospitalet
        • Contact:
          • Gitte M Knudsen, Professor
          • Phone Number: +45 3545 6712
          • Email: gitte@nru.dk
        • Principal Investigator:
          • Martin B Jørgensen, PhD
        • Sub-Investigator:
          • Kristian HR Jensen, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The Capital Region of Denmark is the most urban area of Denmark and has a population of 1.6 million people. Patients in the Capital Region of Denmark are referred from their general practitioner or other treatment providers for treatment within the mental health services in the region. All six clinics in the region provide treatment packages for first-episode depression.

Description

Inclusion Criteria:

  • Age between 18 and 65 years
  • Fulfilment of International Classification of Diseases version 10 diagnostic criteria for a primary depressive episode (i.e., not secondary to known organic or other psychiatric disorder).
  • Referral to a treatment package for single-episode depression.

Exclusion Criteria:

  • Psychosis or psychotic symptoms
  • History of severe head trauma
  • Somatic disease associated with morphological brain changes (e.g., brain tumour)
  • Insufficient Danish language skills to complete questionnaires and cognitive testing

Additional exclusion criteria for Cohort II:

  • Severe somatic disease
  • Contraindications for MRI (e.g., metal implants, claustrophobia or back problems)

Additional exclusion criteria for Cohort III:

  • Severe somatic disease
  • Contraindications for MRI
  • Exposure to radioactivity >10 mSv within the last year
  • Pregnancy or breastfeeding
  • Use of psychotropic drugs

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Patient cohort (n=800)
All participants included will contribute with basic clinical, cognitive, psychometric, genetic and biochemical data.
The outpatient 'treatment package' for first episode depression is a national uniform package designed by Mental Health Services in the Capital Region. The treatment package for first-episode depression is a program with manualized group CBT, psychoeducation of patients and relatives, and relapse prevention. Antidepressant medication and individual psychotherapy are available as needed.
Subcohort I (n=600)
Patients in Subcohort I undergo MRI and EEG in addition to expanded clinical, cognitive, psychometric, and biological data.
The outpatient 'treatment package' for first episode depression is a national uniform package designed by Mental Health Services in the Capital Region. The treatment package for first-episode depression is a program with manualized group CBT, psychoeducation of patients and relatives, and relapse prevention. Antidepressant medication and individual psychotherapy are available as needed.
Subcohort II - drug naive PET subgroup (n=60)
A subgroup of Subcohort I, including only patients who at inclusion do not receive any pharmacological treatment for their depression, undergo in addition Positron Emission Tomography imaging with [11C]-UCB-J for measurement of cerebral synaptic density.
The outpatient 'treatment package' for first episode depression is a national uniform package designed by Mental Health Services in the Capital Region. The treatment package for first-episode depression is a program with manualized group CBT, psychoeducation of patients and relatives, and relapse prevention. Antidepressant medication and individual psychotherapy are available as needed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinical remission
Time Frame: Baseline to 6 months after treatment start
Quick Inventory of Depressive Symptomatology (QIDS) score of ≤5
Baseline to 6 months after treatment start
Clinical improvement
Time Frame: Baseline to 6 months after treatment start
≥50% reduction in QIDS score.
Baseline to 6 months after treatment start

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in depression severity
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Changes in depression severity by QIDS (range from 0 to 27, higher score indicating greater severity)
Baseline to 6, 12 and 18 months after treatment start
Changes in symptomatology
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Changes on the Brief Symptom Inventory 18 (BSI-18, range 0-72, higher score indicating greater psychological distress)
Baseline to 6, 12 and 18 months after treatment start
Changes in depression and anxiety symptomatology
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Changes on the 10-item depression and anxiety symptom checklist (SCL-10, range 0-100 higher score indicating greater symptomatology)
Baseline to 6, 12 and 18 months after treatment start
Change in wellbeing
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Changes measured by the WHO-5 well-being Index (range 0-100, with 0 representing the worst imaginable well-being and 100 representing the best imaginable well-being).
Baseline to 6, 12 and 18 months after treatment start
Change in disability
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Changes measured by modified S. Disability Scale (mSDS) scores (range 0-30, with greater score indicating greater disability)
Baseline to 6, 12 and 18 months after treatment start

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Medication side-effects
Time Frame: Baseline to 6 months after treatment start
Patient Reported Inventory of Side-Effects (PRISE)
Baseline to 6 months after treatment start
Adverse and unwanted events in psychotherapy
Time Frame: Baseline to 6 months after treatment start
Negative Effects Questionnaire (NEQ) to assess adverse and unwanted events in psychological treatment
Baseline to 6 months after treatment start
Psychosocial remission
Time Frame: Baseline to 6, 12 and 18 months after treatment start
Defined as either a WHO-5 score of >49, an SCL-10 score of <26 or an mSDS score of <10.
Baseline to 6, 12 and 18 months after treatment start

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Martin B Jørgensen, DMSc, Psychiatric Center Copenhagen
  • Study Director: Gitte MK Knudsen, DMSc, Neurobiology Research Unit, Rigshospitalet

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 15, 2021

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

November 3, 2022

First Submitted That Met QC Criteria

November 12, 2022

First Posted (Actual)

November 15, 2022

Study Record Updates

Last Update Posted (Actual)

October 8, 2024

Last Update Submitted That Met QC Criteria

October 3, 2024

Last Verified

October 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Via the Center for Integrated Molecular Brain Imaging (Knudsen et al. 2016, NeuroImage), data will be available for the research community upon request and after approval by the scientific board at Neurobiological Research Unit.

The data will be stored on a password-protected survey system behind secure "firewalls" per the General Data Protection Regulation (GDPR, Regulation European Union (EU) 2016/679 April 27th, 2016) and the Danish Data Protection Act and the regulation (Act No. 502 of May 23rd, 2018). Potential further processing in other national and international laboratories may occur, yet always per the GDPR (Regulation EU 2016/679 April 27th, 2016), the Danish Data Protection Act, and the regulation (Act No. 502 of May 23rd, 2018).

IPD Sharing Time Frame

Upon study completion

IPD Sharing Access Criteria

Researchers may apply for access to the data.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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