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DepressionPhase 2NCT00711568

A Clinical Trial of Magnetic Stimulation in Depression

A Phase 2 study testing Repetitive transcranial magnetic stimulation (rTMS) and Repetitive Transcranial Magnetic Stimulator in people with Depression, run by US Department of Veterans Affairs 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

The purpose of this study is to determine whether repetitive high field transcranial magnetic stimulation of the left or right frontal lobes is beneficial for the treatment of depression that is refractory to antidepressant medication. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Depression
What is being tested?
Repetitive transcranial magnetic stimulation (rTMS) and Repetitive Transcranial Magnetic Stimulator
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
48 participants
Where
1 siteUnited States
Study dates
Oct 2001to Dec 2007
Phase
Phase 2
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • All patients will meet DSM-IV criteria for Major Depressive Episode (without psychotic features).
  • All patients will have a total score of 18 or higher and a score of at least 3 on item number 1 of the 24 item Hamilton Rating Scale for Depression (HAM-D).
  • All patients will have failed to respond to at least two separate trials of treatment for at least 4 weeks with therapeutic dosages of antidepressant medication (including at least one SSRI) or will have been intolerant of at least three different antidepressant medications (including at least one SSRI).

Who cannot join

  • Patient medications will be reviewed prior to enrollment in this study. Patients taking medications that may lower seizure threshold (e.g. metronidazole) will be excluded if the particular medication cannot be stopped or altered without affecting the patient's routine medical care.
  • History of neurological illness, epilepsy or seizure disorder, intracranial tumor, or major head trauma leading to loss of consciousness of any length.
  • Evidence of central nervous system disease based on baseline complete neurological examination, EEG and contrast-enhanced computerized tomography or magnetic resonance imaging of the brain.
  • History of implanted pacemaker or medication pump, metal plate in skull, or metal objects in the eye or skull.
  • Axis II diagnosis of Cluster A (paranoid, schizoid, or schizotypal) or Cluster B (antisocial, borderline, histrionic, or narcissistic) personality disorder.
  • Axis II diagnosis of mental retardation.
Show all 11Show fewer
  • History of schizophrenia, schizoaffective disorder, other functional psychosis, rapid-cycling bipolar illness, or alcohol or drug abuse within the past year.
  • Need for rapid clinical response due to conditions such as inanition, psychosis, or suicidality (defined as suicide attempt during the current major depressive episode or having a specific plan for committing suicide).
  • A medical condition that is not well controlled, such as diabetes or hypertension, or concomitant medical or nutritional problems necessitating hospitalization.
  • Patients taking anticonvulsant mood stabilizers (e.g. carbamazepine, valproic acid).
  • Patients otherwise unable to grant informed consent.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • North Florida/South Georgia Veterans Health System

    Gainesville, Florida, 32608

Other trials in United States

About this study

The purpose of this study is to determine whether repetitive high field transcranial magnetic stimulation of the left or right frontal lobes is beneficial for the treatment of depression that is refractory to antidepressant medication.

Read the detailed description

Despite the utility of modern psychotropic medications, depression remains a medical problem with major societal impact. Electroconvulsive therapy (ECT) is an effective somatic treatment for depression. However, ECT has disadvantages, including risks attendant with general anesthesia and significant cognitive side effects (e.g. confusion and memory loss). An effective but safer somatic therapy for depression could help many patients.

The brain can be stimulated non-invasively by using time-varying magnetic fields to induce electrical currents within the cerebral cortex, a technique known as transcranial magnetic stimulation. Preliminary investigations have provided promising evidence of improved mood associated with high frequency repetitive transcranial magnetic stimulation (rTMS) of left prefrontal cortex in patients with medication-resistant major depression. However, the role of stimulus laterality in the effects of prefrontal rTMS have not been tested systematically. Furthermore, previous studies have likely been confounded by inadequate patient blinding and by a lack of standardization of psychotropic medication treatment. Therefore, we propose to use a carefully controlled clinical trial to directly test the hypothesis that the effects of prefrontal rTMS on mood are related to the laterality of magnetic stimulation. We also intend to improve blinding in comparison to previous studies by: 1) employing a parallel-group study design comparing real and simulated rTMS, as opposed to a crossover study design; 2) using specially constructed sham magnetic coils which can be placed directly on the scalp surface, to more effectively simulate rTMS; and 3) using trains of weak electrical impulses to simulate the cutaneous scalp stimulation associated with rTMS. We will minimize confounding effects of medications and antidepressant withdrawal by: 1) requiring that all patients have fail a monitored clinical trial of an SSRI or other comparable antidepressant prior to rTMS; and 2) continuing pharmacological treatment of depression during the rTMS phase of the trial. Demonstration of therapeutic efficacy of rTMS in this rigorously controlled clinical trial would provide a foundation for further investigation and development of this novel potential treatment modality.

Conditions
Depression
Being tested
Repetitive transcranial magnetic stimulation (rTMS), Sham rTMS, Repetitive Transcranial Magnetic Stimulator
Keywords
depression, magnetic stimulation
Medical subject headings
Depression

What participants receive

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

  • Repetitive transcranial magnetic stimulation (rTMS)Procedure or surgery

    20 Hz rTMS delivered for 2 seconds (40 stimuli) every 30 seconds for a total of 2000 stimuli (25 minutes)

  • Sham rTMSProcedure or surgery

    20 Hz sham rTMS delivered to L or R frontal region for 2 seconds (40 stimuli) every 30 seconds for a total of 2000 stimuli

  • Repetitive Transcranial Magnetic StimulatorDevice

    Repetitive Transcranial Magnetic Stimulator

Study groups in NCT00711568
Study groupRoleWhat they receive
Arm 1ExperimentalLeft dorsolateral frontal 20 Hz TMS delivered for 2 seconds every 30 seconds for a total of 2000 stimuli
Receives: Procedure: Repetitive transcranial magnetic stimulation (rTMS); Device: Repetitive Transcranial Magnetic Stimulator
Arm 2ExperimentalRight dorsolateral frontal 20 Hz TMS delivered for 2 seconds every 30 seconds for a total of 2000 stimuli
Receives: Procedure: Repetitive transcranial magnetic stimulation (rTMS); Device: Repetitive Transcranial Magnetic Stimulator
Arm 3Sham comparatorLeft or right dorsolateral frontal 20 Hz sham TMS delivered for 2 seconds every 30 seconds for a total of 2000 stimuli
Receives: Procedure: Sham rTMS

What is being measured

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

  1. Hamilton Depression Scale

    Measured: Baseline x 2, end of treatment, one week, one month and 3 months post-treatment

Secondary outcomes (1)
  1. Beck Depression Inventory

    Measured: Baseline x 2, end of treatment, one week, one month and 3 months post-treatment

Timeline

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

  1. First posted9 Jul 2008 (estimated)
  2. Study startOct 2001
  3. Primary completionAug 2007
  4. Study completionDec 2007

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00711568
Sponsor's protocol ID
MHBS-014-01S
Other IDs
Nadeau-573-08
Status last verified
Mar 2013
First submitted
3 Jul 2008
Last updated
1 Apr 2013
Results posted
No
Data monitoring committee
No

Publications

  • Triggs WJ, McCoy KJ, Greer R, Rossi F, Bowers D, Kortenkamp S, Nadeau SE, Heilman KM, Goodman WK. Effects of left frontal transcranial magnetic stimulation on depressed mood, cognition, and corticomotor threshold. Biol Psychiatry. 1999 Jun 1;45(11):1440-6. doi: 10.1016/s0006-3223(99)00031-1.

    PubMed 10356626
  • Nadeau SE, Bowers D, Jones TL, Wu SS, Triggs WJ, Heilman KM. Cognitive effects of treatment of depression with repetitive transcranial magnetic stimulation. Cogn Behav Neurol. 2014 Jun;27(2):77-87. doi: 10.1097/WNN.0000000000000031.

    PubMed 24968008
  • Nadeau SE, Davis SE, Wu SS, Dai Y, Richards LG. A pilot randomized controlled trial of D-cycloserine and distributed practice as adjuvants to constraint-induced movement therapy after stroke. Neurorehabil Neural Repair. 2014 Nov-Dec;28(9):885-95. doi: 10.1177/1545968314532032. Epub 2014 Apr 26.

    PubMed 24769437
  • Triggs WJ, Ricciuti N, Ward HE, Cheng J, Bowers D, Goodman WK, Kluger BM, Nadeau SE. Right and left dorsolateral pre-frontal rTMS treatment of refractory depression: a randomized, sham-controlled trial. Psychiatry Res. 2010 Aug 15;178(3):467-74. doi: 10.1016/j.psychres.2010.05.009. Epub 2010 Jun 18.

    PubMed 20643486

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Repetitive transcranial magnetic stimulation (rTMS) and Repetitive Transcranial Magnetic Stimulator in people with Depression, run by US Department of Veterans Affairs 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 3 inclusion and 11 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 1 Apr 2013. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Hamilton Depression Scale (time frame: Baseline x 2, end of treatment, one week, one month and 3 months post-treatment). 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 NCT00711568, which also lists 4 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 1 Apr 2013; AzTrials last refreshed its copy on 7 Nov 2026.

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