Deep rTMS for Treatment-Resistant Late-life Depression (rTMS)
A Randomized Controlled Study of H1-Coil rTMS for Treatment-Resistant Late-Life Depression
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
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, M6J 1H4
- Centre for Addiction and Mental Health
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- outpatients
- voluntary and competent to consent to treatment
- SCID for DSM-IV confirmed diagnosis of major depressive disorder, single or recurrent
- between the ages of 60 and 85
- failed to achieve a clinical response to an adequate dose of an antidepressant based on an ATHF score of ≥ 3 in the current episode OR have been unable to tolerate at least 2 separate trials of antidepressants of inadequate dose and duration (ATHF 1 or 2)
- a score of ≥ 22 on the HDRS-24
- 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 safety screening questionnaire
- have normal thyroid functioning based on pre-study blood work
Exclusion Criteria:
- history of DSM-IV substance dependence or abuse within the last 3 months
- concomitant major unstable medical illness, cardiac pacemaker or implanted medication pump
- acutely suicidal
- pregnant
- lifetime SCID diagnosis of Bipolar I or II disorder, schizophrenia, schizoaffective disorder, schizophreniform disorder, delusional disorder, or current psychotic symptoms
- SCID 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) assessed by a study investigator to be primary and causing greater impairment than MDD
- SCID diagnosis of any personality disorder and assessed by a study investigator to be primary and causing greater impairment than MDD
- have presumed or probably dementia, as defined by Mini Mental Status Exam (MMSE)<26 and clinical evidence of dementia
- failed a course of ECT within the current depressive episode
- a significant neurological disorder or insult, including, but no 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
- on a dose of Buprioprion greater than 300mg per day
- 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 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
- inability to communicate in English
- 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: PARALLEL
- Masking: TRIPLE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Sham Comparator: Sham H1 Coil
deep rTMS sham treatment
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In the sham treatment,the electrical field induced by the sham coil cannot invoke any action potentials and if no action potentials are induced, then the electric field is insignificant and there is no treatment effect on the brain.
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Active Comparator: Active H1
deep rTMS active treatment
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Deep Transcranial Magnetic Stimulation (DTMS) is a new form of TMS which allows direct stimulation of deeper neuronal pathways than the standard TMS.
The H-coil is a novel DTMS coil designed to allow deeper brain stimulation without a significant increase of electric fields induced in superficial cortical regions
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
HDRS-24
Time Frame: 4 weeks
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Remission defined as HDRS-24 </= 10
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4 weeks
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Mean change in HDRS-24
Time Frame: 4 weeks
|
4 weeks
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Daniel M. Blumberger, MD, FRCPC, Centre for Addiction and Mental Health
- Principal Investigator: Zafiris J Daskalakis, Md, FRCPC, Centre for Addiction and Mental Health
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
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 107/2011
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