Examining the Efficacy of Orbitofrontal Cortex rTMS for Depression (OFC-rTMS)
Efficacy of Orbital Frontal Cortex Repetitive Transcranial Magnetic Stimulation Magnetic Stimulation in the Treatment of Refractory Depression
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Ontario
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Toronto, Ontario, Canada, M5T 2S8
- UHN MRI-Guided rTMS Clinic, Toronto Western Hospital
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- are outpatients
- are voluntary and competent to consent to treatment
- have a Mini-International Neuropsychiatric Interview (MINI) confirmed diagnosis of major depressive disorder (MDD), single or recurrent
- are between the ages of 18 and 65
- have failed to achieve a clinical response to an adequate dose of an antidepressant based on an Antidepressant Treatment History Form (ATHF) score of > 3 in the current
- have a score > 18 on the HAMD-17
- have had no increase or initiation of any psychotropic medication in the 4 weeks prior to screening
- able to adhere to the treatment schedule
- Pass the TMS adult safety-screening (TASS) questionnaire
- have normal thyroid functioning based on pre-study blood work.
Exclusion Criteria:
- have a MINI-International Neuropsychiatric (MINI) confirmed diagnosis of substance dependence or abuse within the last 3 months
- have a concomitant major unstable medical illness, cardiac pacemaker or implanted medication pump
- have active suicidal intent
- are pregnant
- have a lifetime Mini-International Neuropsychiatric Interview (MINI) diagnosis of bipolar I or II disorder, schizophrenia, schizoaffective disorder, schizophreniform disorder, delusional disorder, or current psychotic symptoms
- have a MINI diagnosis of obsessive compulsive disorder, post-traumatic stress disorder (current or within the last year), anxiety disorder (generalized anxiety disorder, social anxiety disorder, panic disorder), or dysthymia, assessed by a study investigator to be primary and causing greater impairment than MDD
- have a diagnosis of any personality disorder, and assessed by a study investigator to be primary and causing greater impairment than MDD
- have failed a course of electroconvulsive therapy (ECT) in the current episode or previous episode
- have any significant neurological disorder or insult including, but not limited to: any condition likely to be associated with increased intracranial pressure, space occupying brain lesion, any history of seizure except those therapeutically induced by ECT, cerebral aneurysm, Parkinson's disease, Huntington's chorea, multiple sclerosis, significant head trauma with loss of consciousness for greater than or equal to 5 minutes
- have an intracranial implant (e.g., aneurysm clips, shunts, stimulators, cochlear implants, or electrodes) or any other metal object within or near the head, excluding the mouth, that cannot be safely removed
- if participating in psychotherapy, must have been in stable treatment for at least 3 months prior to entry into the study, with no anticipation of change in the frequency of therapeutic sessions, or the therapeutic focus over the duration of the study
- clinically significant laboratory abnormality, in the opinion of the study investigator
- currently (or in the last 4 weeks) take more than lorazepam 2 mg daily (or equivalent) or any dose of an anticonvulsant due to the potential to limit rTMS efficacy
- non-correctable clinically significant sensory impairment (i.e., cannot hear well enough to cooperate with interview).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Experimental: Sham then Active Stimulation
Sham repetitive transcranial magnetic stimulation (rTMS) to right orbitofrontal cortex, twice daily, 5 days per week for 3 weeks, then active rTMS to right orbitofrontal cortex, twice daily, 5 days per week for 3 weeks
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Experimental: Active then Sham Stimulation
Active repetitive transcranial magnetic stimulation (rTMS) to right orbitofrontal cortex, twice daily, 5 days per week for 3 weeks, then sham rTMS to right orbitofrontal cortex, twice daily, 5 days per week for 3 weeks
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
17-Item Hamilton Rating Scale for Depression (HAMD-17)
Time Frame: Baseline, after each week of treatment (i.e. after 5 days of treatment) and at 1, 4, and 12 weeks post-treatment.
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Outcome measured by a change in HAMD-17 score from baseline to 2 weeks post-treatment.
A 50% improvement in the score is considered a response to rTMS.
A final score of <8 is categorized as remission.
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Baseline, after each week of treatment (i.e. after 5 days of treatment) and at 1, 4, and 12 weeks post-treatment.
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
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Beck Depression Inventory-II (BDI-II)
Time Frame: Daily for 6 weeks
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Daily for 6 weeks
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Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Magnetic Resonance Imaging (MRI)
Time Frame: 1 week pre- and 1 week post-treatment
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10 min resting-state functional MRI (rs-fMRI) at 3 Tesla (3T)
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1 week pre- and 1 week post-treatment
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Electroencephalography (EEG)
Time Frame: Day 1 (First day of treatment), Day 15, and Day 30 (Final day of treatment)]
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10 min resting-state and task-based (response inhibition, reward sensitivity) acquisitions
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Day 1 (First day of treatment), Day 15, and Day 30 (Final day of treatment)]
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 16-5094
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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