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Major Depressive DisorderNCT00562367

Biochemical Brain Changes Correlated With The Antidepressant Effect Of Thyroid Hormones

A study testing Cytomel (liothyronine) in people with Major Depressive Disorder, run by Massachusetts General Hospital at 1 site in United States.

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

We propose to investigate structural and biochemical brain abnormalities in depressed subjects, and the relationship between the presence of such abnormalities and treatment outcome. We will recruit N=20 subjects with major depression disorder and N=20 matched normal controls. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Major Depressive Disorder
What is being tested?
Cytomel (liothyronine)
How many people
30 participants
Where
1 siteUnited States
Study dates
Oct 2001to Sep 2004
Phase
Interventional
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • DSM-IV diagnostic criteria for MDD (diagnosed with the use of SCID)
  • Written informed consent
  • Men or women aged 18-65
  • A baseline Hamilton-D17 score of > 16.

Who cannot join

  • Subjects with suicidal ideation where outpatient treatment is determined unsafe by the study clinician. These patients will be immediately referred to appropriate clinical treatment.
  • Pregnant women or women of childbearing potential who are not using a medically accepted means of contraception (defined as oral contraceptive pill or implant, condom, diaphragm, spermicide, IUD, s/p tubal ligation, partner with vasectomy)
  • Serious or unstable medical illness, including cardiovascular, hepatic, renal, respiratory, endocrine, neurologic or hematologic disease
  • History of seizure disorder,
  • History or current diagnosis of the following DSM-IV psychiatric illness: organic mental disorder, schizophrenia, schizoaffective disorder, delusional disorder, psychotic disorders not otherwise specified, bipolar disorder, patients with mood congruent or mood incongruent psychotic features, patients with substance dependence disorders, including alcohol, active within the last 12 months.
  • History or current diagnosis of dementia, or a score of < 26 on the Mini Mental Status Examination (Folstein, 1975) at the screening visit.
Show all 13Show fewer
  • History of multiple adverse drug reactions or allergy to the study drugs.
  • Patients with mood congruent or mood incongruent psychotic features.
  • Patients having shown minimal or no response to a standard course of antidepressant treatment with an SSRI. A standard course will be defined as the following medications taken for > 4 weeks: fluoxetine > 20 mg/day, sertraline > 50 mg/day, paroxetine > 20 mg/day, fluvoxamine > 50 mg/day, citalopram > 20 mg/day, venlafaxine > 150 mg/day.
  • Clinical or laboratory evidence of hypothyroidism.
  • Patients who have had electroconvulsive therapy (ECT) within the 6 months preceding baseline.
  • History of intolerance to Cytomel
  • History of cardiac pathology or diabetes

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

We propose to investigate structural and biochemical brain abnormalities in depressed subjects, and the relationship between the presence of such abnormalities and treatment outcome. We will recruit N=20 subjects with major depression disorder and N=20 matched normal controls. The depressed subjects would have previously not responded to an adequate trial with a selective serotonin reuptake inhibitor (SSRI). These depressed subjects will be treated for 4 weeks with the same SSRI antidepressant and with adjuvant triiodothyronine (T3). Structural magnetic resonance images (MRI) and then Phosphorus-31 magnetic resonance spectroscopic imaging (31P-MRSI) data will be obtained two times for each patient (at the beginning and at the end of the study) and one time for the normal controls. We will measure for each depressed subject the number of white matter hyperintensities (WMH); we will also measure the degree of change from baseline in several compounds characteristic for the cellular high-energy phosphate metabolism: the phosphocreatine/inorganic phosphate ratio and the beta-nucleoside triphosphate. We will compare the severity of WMH and the high-energy phosphate metabolism in two groups of depressed subjects (those responding and those not responding to thyroid hormone augmentation) and the normal controls.

We hypothesize that:

  1. All depressed subjects, when compared with normal controls, will present lower baseline levels of compounds characteristic for the high-energy phosphate metabolism.
  2. Depressed subjects responding to T3 augmentation, when compared with subjects not responding to T3 augmentation, will present a larger increase of the high-energy phosphate metabolism.
Being tested
Cytomel (liothyronine)
Medical subject headings
Depressive Disorder, Major

What participants receive

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

  • Cytomel (liothyronine)Drug

    Cytomel (liothyronine) 25-50 mcg/day for 4 weeks

What is being measured

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

  1. change in depression (as measured by Ham-D-17) over the 4 weeks study

    Measured: 4 weeks

Secondary outcomes (1)
  1. change in bioenergetic metabolism (e.g., NTP and PCr) as measured by phosphorus magnetic resonance spectroscopy (P31-MRS)

    Measured: 4 weeks

Timeline

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

  1. First posted22 Nov 2007 (estimated)
  2. Study startOct 2001
  3. Study completionSep 2004

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
Basic science
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00562367
Sponsor's protocol ID
2001-P-000836
Status last verified
Nov 2007
First submitted
20 Nov 2007
Last updated
22 Nov 2007
Results posted
No
Data monitoring committee
No

Publications

  • Iosifescu DV, Nierenberg AA, Mischoulon D, Perlis RH, Papakostas GI, Ryan JL, Alpert JE, Fava M. An open study of triiodothyronine augmentation of selective serotonin reuptake inhibitors in treatment-resistant major depressive disorder. J Clin Psychiatry. 2005 Aug;66(8):1038-42. doi: 10.4088/jcp.v66n0812.

    PubMed 16086620
  • Iosifescu DV, Bolo NR, Nierenberg AA, Jensen JE, Fava M, Renshaw PF. Brain bioenergetics and response to triiodothyronine augmentation in major depressive disorder. Biol Psychiatry. 2008 Jun 15;63(12):1127-34. doi: 10.1016/j.biopsych.2007.11.020. Epub 2008 Jan 22.

    PubMed 18206856

Questions about this trial

What is this clinical trial studying?

A study testing Cytomel (liothyronine) in people with Major Depressive Disorder, run by Massachusetts General Hospital 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 4 inclusion and 13 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 22 Nov 2007. 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 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?

change in depression (as measured by Ham-D-17) over the 4 weeks study (time frame: 4 weeks). 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 NCT00562367, which also lists 2 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 22 Nov 2007.

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