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Major Depressive DisorderNCT01465165

Use of Multiple Brain Imaging Modalities (PET and MRS) to Identify Metabolic Abnormalities in Major Depression

An observational study of Major Depressive Disorder, run by Paul Carlson at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Several lines of evidence support the existence of an underlying abnormality in brain energy metabolism may play a key role in the biology of mood disorders. The current study utilizes two distinct but complementary imaging techniques, fluorodeoxyglucose (FDG) positron emission tomography (PET) and multinuclear… Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Major Depressive Disorder
How many people
12 participants
Where
1 siteUnited States
Study dates
15 May 2011to 24 Jun 2012
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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: Community sample

Who may be able to join

  • Meet DSM-IV criteria for Major Depressive Disorder (MDD), Recurrent
  • Montgomery-Asberg Depression Rating Scale (MADRS) score > 18

Who cannot join

  • Any coexisting psychiatric illness other than generalized anxiety disorder, panic disorder, or social/specific phobias
  • Any history of substance dependence
  • Substance abuse within the past 6 months
  • Significant risk of suicide, as defined by score >4 on item 10 of the MADRS or in the clinical judgment of the study physician
  • Any significant medical or neurological condition which is likely to impact the central nervous system and/or affect the results of MRS or PET imaging
  • For the subset of unmedicated MDD patients, any psychotropic medications within 4 weeks prior to scanning. For the subgroup of medicated patients, they may be taking a stable dose (i.e., same dose for at least 4 weeks at the time of scanning) of standard antidepressant medications, but may not be taking any other psychotropic medication.
  • Inability to give informed consent
  • Contraindication to MRI (e.g., pacemaker, ferromagnetic implants in the body)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Utah Dept of Psychiatry

    Salt Lake City, Utah, 84112

Other trials in United States

About this study

Official title: Comparison of Fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) and Magnetic Resonance Spectroscopy (MRS) as Bioenergetic Imaging Modalities in Healthy Human Brain and Major Depressive Disorder

Several lines of evidence support the existence of an underlying abnormality in brain energy metabolism may play a key role in the biology of mood disorders. The current study utilizes two distinct but complementary imaging techniques, fluorodeoxyglucose (FDG) positron emission tomography (PET) and multinuclear magnetic resonance spectroscopy (MRS), to better understand the nature of these metabolic abnormalities in major depressive disorder (MDD). The investigators hypothesize that individuals with depression will have increased metabolic activity as measured by PET in certain brain regions involved in mood regulation, but that this metabolic activity will be inefficient based on MRS findings. For this study, the investigators will study 10 medication-free, currently depressed participants with recurrent MDD, 10 depressed participants with recurrent MDD currently taking antidepressant medication, and up to 20 healthy control participants matched to depressed participants for age and gender. Depressed and healthy participants will each undergo one PET scan and one MRS scanning session.

Keywords
Depression, Positron emission tomography, Magnetic resonance spectroscopy, glucose metabolism, ATP, phosphocreatine
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.

Study groups in NCT01465165
Study groupRoleWhat they receive
Depressed, unmedicatedParticipants with MDD who are not treated with any antidepressant medication
Depressed, on antidepressantParticipants with MDD, currently depressed but on a stable dose of an SSRI antidepressant
Healthy controlHealthy participant with no MDD or other psychiatric condition, matched by age and gender to MDD participants

What is being measured

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

  1. high energy phosphate metabolites (Phosphocreatine (PCr)) as measured by magnetic resonance spectroscopy

    relative concentration of Pcr

    Measured: cross-sectional

Secondary outcomes (3)
  1. regional cerebral glucose metabolism, as measured by Positron Emission Tomography (PET)

    binding potential of FDG

    Measured: cross-sectional

  2. N-Acetyl-Aspartate (NAA) metabolite intensity, as measured by proton Magnetic Resonance Spectroscopy (MRS)

    relative concentration of NAA

    Measured: cross-sectional

  3. severity of depressive symptoms, as scored on the Montgomery-Asberg Depression Rating Scale (MADRS)

    MADRS composite score

    Measured: cross-sectional

Timeline

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

  1. First posted4 Nov 2011 (estimated)
  2. Study start15 May 2011
  3. Primary completion24 Jun 2012
  4. Study completion24 Jun 2012

Why it stopped: Study procedures were not feasible.

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
Cross-sectional
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01465165
Sponsor's protocol ID
WIBR08-PJC
Status last verified
May 2017
First submitted
1 Nov 2011
Last updated
19 May 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: De-identified scanning images may be individually examined after the study is completed if new analysis methods become available to collaborators.

Questions about this trial

What is this clinical trial studying?

An observational study of Major Depressive Disorder, run by Paul Carlson at 1 site in United States.

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 2 inclusion and 8 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: stopped early, as of the sponsor's last update on 19 May 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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 was stopped early (reason given: Study procedures were not feasible.). Results are not available in the source record.

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?

high energy phosphate metabolites (Phosphocreatine (PCr)) as measured by magnetic resonance spectroscopy (time frame: cross-sectional). 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 19 May 2017.

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