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Depressive Disorder, MajorBIODEPNCT02752178

Peripheral Immunomarker Validation in Treatment-resistant Depression

An observational study of Depressive Disorder, Major, run by University of Cambridge at 5 sites in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a study to characterise the role of inflammatory processes in depression. There is compelling evidence that inflammation is often associated with, and can cause, depression. It is currently less clear that antiinflammatory drugs have meaningful antidepressant effect. Read more about this study

Who is it for?
Ages 25 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Depressive Disorder, Major
What is being tested?
MA and DEP
How many people
393 participants
Where
5 sitesUnited Kingdom
Study dates
Jun 2015to Sep 2018
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: People with depression and healthy controls

Who may be able to join

  • Major depressive disorder diagnosed by structured clinical interview in accordance with Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria
  • Aged 25-50 years inclusive
  • HAM-D score at baseline
  • DEP+MA+ subgroup > 13
  • DEP+MA- subgroup > 17
  • DEP-MA+ subgroup < 7
Show all 9Show fewer
  • Able and willing to give informed consent, including consent to sharing of clinical information with the participant's general practitioner
  • Willing to abstain from strenuous exercise for 72 hours prior to assessment
  • Able to write, speak and understand English

Who cannot join

  • Life time history of bipolar disorder or nonaffective psychosis
  • Concurrent medication likely to compromise the interpretation of immunological data (including, but not limited to corticosteroids, or any other substance to be determined by the Principal Investigator or delegate)
  • Pregnancy or breast feeding
  • Active alcohol or drug abuse or dependence in the last 6 months
  • Participation in clinical trial of an investigational drug within the last 12 months
  • Lifetime history of any serious medical disorder likely to compromise the interpretation of immunological data (including, but not limited to, immunological disorders, cardiovascular disorders, malignancies or infection, or any other condition to be determined by the Principal Investigator or delegate)

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United Kingdom5 sites
  • University of Sussex

    Brighton

  • University of Cambridge

    Cambridge

  • University of Glasgow

    Glasgow

  • King's College London

    London

  • University of Oxford

    Oxford

Other trials in United Kingdom

About this study

Official title: A Clinical Biomarker Study of Immunological Phenotypes Associated With Monoaminergic Anti-depressant Response, and the Brain and Cognitive Phenotypes Associated With Variation in Peripheral C-reactive Protein (CRP) Levels, in Patients With Major Depressive Disorder (MDD).

This is a study to characterise the role of inflammatory processes in depression. There is compelling evidence that inflammation is often associated with, and can cause, depression. It is currently less clear that antiinflammatory drugs have meaningful antidepressant effect. One of the goals is to identify the subset of depressed patients that is most likely to respond better to an antiinflammatory drug than to a conventional antidepressant. The investigators will therefore undertake a study of patients with a diagnosis of major depressive disorder including four groups: i) incompletely responsive patients who have demonstrated failure to respond consistently or completely to standard treatment, ii) those who have responded well to treatment and are not currently depressed, iii) untreated patients who are currently depressed, iv) healthy volunteers with no history of depression. Participants will undergo a clinical assessment, an interview with a trained member of the research team and will complete self-rated questionnaires. Investigators will collect blood and saliva samples to measure certain immune markers. They will also perform magnetic resonance imaging (MRI) scans to look for MRI markers in the brain and investigate brain inflammation in a subsample of these patients using positron emission topography (PET) and cerebrospinal fluid (CSF) sampling (also called lumbar puncture).

Read the detailed description

The hypotheses are (i) that therapeutic resistance to monoaminergic (MA) antidepressant drugs is associated with peripheral biomarkers indicating abnormal activation of the innate immune system; and (ii) that peripheral inflammation, defined by blood levels of C-reactive protein (CRP), is associated with central nervous system inflammation and abnormal brain structure and function.

The objectives are to test these two hypotheses by collecting clinical, immunological and neuroimaging data on patients with depression (DEP+) recruited from a network of clinical research sites in the United Kingdom.

Primary objective:

To measure peripheral immunophenotypes in healthy volunteers (at least N=50) and 3 groups of depressed patients, categorised by their exposure and therapeutic response to monoaminergic antidepressants (up to N=200):

  • Incompletely responsive patients (approximately N ~100) who are currently depressed after greater than 6 weeks of treatment with one or more monoaminergic antidepressants (DEP+MA+);
  • Responsive patients (approximately N~50) who are not currently depressed after greater than 6 weeks of treatment with a monoaminergic antidepressant (DEP-MA+);
  • Untreated patients (approximately N~50) who are currently depressed but have not been treated with monoaminergic antidepressants in the previous 6 weeks (DEP+MA-);
  • Healthy volunteers (approximately N~50) who have no personal history of depression requiring treatment with either monoaminergic antidepressants or other clinical interventions including psychotherapy (DEP-MA-).

Secondary objective:

To measure brain and cognitive phenotypes in a subsample of up to N=100 depressed patients recruited, preferably from the primary cohort, on the basis of their CRP levels:

  • Low CRP patients (N~45) will have CRP <= 3 mg/L
  • High CRP patients (N~45) will have CRP > 3 mg/L
  • Healthy volunteers (at least N=45).

All subjects in this sample will be assessed using structural and functional magnetic resonance imaging (MRI) and subjects providing additional specific consents will also be assessed using positron emission tomography (PET-MR), and/or lumbar puncture (LP) for cerebrospinal fluid (CSF) sampling.

Being tested
MA, DEP
Keywords
Depression, Major depressive disorder, MDD
Medical subject headings
Depressive Disorder, Major, Depression

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MAOther

    Monoaminergic antidepressant use

  • DEPOther

    Depression measured using the Hamilton Depression (HAM-D) questionnaire

Study groups in NCT02752178
Study groupRoleWhat they receive
DEP+MA+Incompletely responsive patients (approximately N ~100) who are currently depressed after greater than 6 weeks of treatment with one or more monoaminergic antidepressants
Receives: Other: MA; Other: DEP
DEP-MA+Responsive patients (approximately N~50) who are not currently depressed after greater than 6 weeks of treatment with a monoaminergic antidepressant
Receives: Other: MA
DEP+MA-Untreated patients (approximately N~50) who are currently depressed but have not been treated with monoaminergic antidepressants in the previous 6 weeks
Receives: Other: DEP
DEP-MA-Healthy volunteers (approximately N~50) who have no personal history of depression requiring treatment with either monoaminergic antidepressants or other clinical interventions including psychotherapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. C-reactive protein (CRP) levels (mg/l)

    Measured: One year after last participant visit

  2. Flow cytometric immunophenotype

    The exact antibody panel will be developed during the research study

    Measured: One year after last participant visit

Secondary outcomes (4)
  1. Structural parameters of the brain

    Measured using MRI. Specifically: larger grey matter volume loss, quantitative parameters (T1, T2), magnetization transfer, and the microstructure of grey and white matter

    Measured: One year after last participant visit

  2. Response to stimulus

    Specifically: functional MRI (fMRI) signatures obtained in an emotional face recognition and a reward processing task, respectively.

    Measured: One year after last participant visit

  3. Microglial activation in the brain

    Measured using Positron Emission Tomography (PET)

    Measured: One year after last participant visit

  4. Pro-inflammatory (M1-like) phenotype-producing cytokines, such as interleukin (IL)-1, IL-6, and tumor necrosis factor (TNF)-α circulating in cerebrospinal fluid

    Measured: One year after last participant visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2016 (estimated)
  2. Study startJun 2015
  3. Primary completionSep 2018
  4. Study completionSep 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
393 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02752178
Sponsor's protocol ID
15/EE/0092
Acronym
BIODEP
Status last verified
Sep 2018
First submitted
16 Mar 2016
Last updated
25 Sep 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: All publications resulting from this study will be made available Open Access. Additionally, supporting research data will be also made available. This page will be updated with information about research outputs as soon as they become available.

Questions about this trial

What is this clinical trial studying?

An observational study of Depressive Disorder, Major, run by University of Cambridge at 5 sites in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

C-reactive protein (CRP) levels (mg/l) (time frame: One year after last participant visit). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2018.

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