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DepressionNCT00749125

fMRI Studies of Emotional Brain Circuitry in People With Major Depression

A study testing Lexapro in people with Depression, run by Washington University School of Medicine.

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 study will examine activation of a brain circuit that regulates emotion in depressed patients before and after treatment to see which areas of the brain are involved in chronic depression. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Depression
What is being tested?
Lexapro
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
99 participants
Where
No sites listed yet
Study dates
Jul 2001to Jun 2008
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participant meets DSM-IV criteria for major depressive disorder
  • Minimum score greater than 18 on Hamilton Depression Inventory
  • Participant is right handed
  • Participant speaks English

Who cannot join

  • Significant limitations that would interfere with testing procedures, such as uncorrected visual or hearing loss
  • MRI contraindications, such as foreign metallic implants or a pacemaker
  • Known primary neurological disorders, including dementia, stroke, encephalopathy, Parkinson's disease, brain tumors, multiple sclerosis, or seizure disorder
  • Severe or unstable medical illness, such as a heart attack within the past 3 months, end stage cancer, or conditions or drugs that may cause depression (like systemic steroids or uncorrected hypothyroidism)
  • Currently at risk for suicide
  • Known allergy or hypersensitivity to escitalopram

About this study

Official title: fMRI Studies of Emotional Circuitry in Major Depression

This study will examine activation of a brain circuit that regulates emotion in depressed patients before and after treatment to see which areas of the brain are involved in chronic depression.

Read the detailed description

Major depressive disorder can be a recurrent problem for many people, interfering with their ability to function normally in day-to-day life. Although research shows that activation in certain brain areas corresponds to certain emotional functions, it is not well known which specific changes in brain functioning are related to or caused by depression. A proposed theory holds that depression is related to abnormal regulation of emotions and thoughts. This study will focus particularly on a brain circuit involved in emotional regulation, which includes the amygdala, the affective division of the anterior cingulate (ACad), and dorsolateral prefrontal cortex (DLPFC). The amygdala detects critical emotional information, especially threats; the ACad judges relevance of motivational cues, detects conflict, and regulates emotional responses; and the DLPFC has a critical role in supporting a wide range of cognitive control functions. This study will compare brain scans from people with and without depression to attempt to clarify which changes in brain functioning are related to depression.

Participation in this study will last 8 weeks. All participants will undergo initial screening in a telephone interview, then a diagnostic interview and brief physical examination. After passing through screening, participants will schedule a functional magnetic resonance imaging (fMRI) scan. The fMRI scan, lasting approximately 2 hours, will take pictures of both brain structure and brain functioning during different tasks. Also at this visit but outside the fMRI scanner, participants will be asked to complete an additional 2 hours of tasks on a computer. Depressed participants will then be given Lexapro, an approved drug for the treatment of depression. Participants taking Lexapro will go to scheduled doctor's visits after 2, 4, and 6 weeks of treatment to assess health, effectiveness of the drug, and side effects. On the eighth week, all participants will again undergo fMRI scanning and computer testing. At both the initial and follow-up fMRI study visits, images of brain function and anatomy will be recorded, heart rate will be monitored, and anxiety and arousal will be measured in the computer tests.

Conditions
Depression
Being tested
Lexapro
Keywords
Emotional Circuitry, fMRI
Medical subject headings
Depression

What participants receive

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

  • LexaproDrug

    Also called Escitalopram

    10 mg by mouth once per day for first 2 weeks, with psychiatric re-evaluation every 2 weeks to determine if any change in dosage is required, with a maximum of 20 mg per day

Study groups in NCT00749125
Study groupRoleWhat they receive
1 LexaproExperimentalThe depressed participants in this arm will be given Lexapro.
Receives: Drug: Lexapro
2 ControlNo interventionThe nondepressed participants in this arm will not be given any intervention for depression.

What is being measured

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

  1. Activations in Different Cortical Regions Caused by Emotionally Evocative Task

    MRI scans from 41 participants (23 depressed and 18 controls), including fMRI scans using an emotional distractor task, were analyzed for differences between groups in activation in a priori regions (amygdala and DLPFC), measured with BOLD signal, for two conditions of the task - attend fearful and ignore fearful, both at baseline and following 8 weeks of treatment for the depressed group. Voxel-wise comparisons (ANOVAs) were performed to determine differences in activations between groups within these regions. Positive values reflect a BOLD activation in that region; negative reflects a BOLD de-activation in that region. We expect more positive values (greater activation) in depressed participants at baseline than in controls during the attend fearful task, and more negative values (greater de-activation) in controls at baseline than depressed during the ignore fearful task. These differences were expected to lessen significantly following treatment in the depressed group.

    Measured: baseline and week 8

Timeline

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

  1. First posted9 Sep 2008 (estimated)
  2. Study startJul 2001
  3. Primary completionJan 2008
  4. Study completionJun 2008

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
99 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00749125
Sponsor's protocol ID
R01MH064821-04
Other IDs
R01MH064821, 5R01 MH06482104, DATR A3-NSM
Status last verified
Jun 2018
First submitted
8 Sep 2008
Last updated
17 Jul 2018
Data monitoring committee
No

Publications

  • Sheline YI. Neuroimaging studies of mood disorder effects on the brain. Biol Psychiatry. 2003 Aug 1;54(3):338-52. doi: 10.1016/s0006-3223(03)00347-0.

    PubMed 12893109
  • Fales CL, Barch DM, Rundle MM, Mintun MA, Mathews J, Snyder AZ, Sheline YI. Antidepressant treatment normalizes hypoactivity in dorsolateral prefrontal cortex during emotional interference processing in major depression. J Affect Disord. 2009 Jan;112(1-3):206-11. doi: 10.1016/j.jad.2008.04.027. Epub 2008 Jun 17.

    PubMed 18559283
  • Sheline YI, Price JL, Yan Z, Mintun MA. Resting-state functional MRI in depression unmasks increased connectivity between networks via the dorsal nexus. Proc Natl Acad Sci U S A. 2010 Jun 15;107(24):11020-5. doi: 10.1073/pnas.1000446107. Epub 2010 Jun 1.

    PubMed 20534464
  • Sheline YI, Barch DM, Donnelly JM, Ollinger JM, Snyder AZ, Mintun MA. Increased amygdala response to masked emotional faces in depressed subjects resolves with antidepressant treatment: an fMRI study. Biol Psychiatry. 2001 Nov 1;50(9):651-8. doi: 10.1016/s0006-3223(01)01263-x.

    PubMed 11704071
  • Fales CL, Barch DM, Rundle MM, Mintun MA, Snyder AZ, Cohen JD, Mathews J, Sheline YI. Altered emotional interference processing in affective and cognitive-control brain circuitry in major depression. Biol Psychiatry. 2008 Feb 15;63(4):377-84. doi: 10.1016/j.biopsych.2007.06.012. Epub 2007 Aug 24.

    PubMed 17719567
  • Sheline YI, Barch DM, Price JL, Rundle MM, Vaishnavi SN, Snyder AZ, Mintun MA, Wang S, Coalson RS, Raichle ME. The default mode network and self-referential processes in depression. Proc Natl Acad Sci U S A. 2009 Feb 10;106(6):1942-7. doi: 10.1073/pnas.0812686106. Epub 2009 Jan 26.

    PubMed 19171889

Questions about this trial

What is this clinical trial studying?

A study testing Lexapro in people with Depression, run by Washington University School of Medicine.

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 4 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 17 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 17 Jul 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Activations in Different Cortical Regions Caused by Emotionally Evocative Task (time frame: baseline and week 8). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00749125, which also lists 6 linked publications.

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 17 Jul 2018.

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