Purpose:
Repetitive transcranial magnetic stimulation (rTMS) is a treatment for depression. The
investigators are continuing to learn how to optimize outcomes from rTMS treatment. The
purpose of this research project is to use brain network connectivity patterns as measured by
resting state functional magnetic resonance imaging (fMRI) to confirm a way to optimize the
use of rTMS to treat depression. In addition, the study aims to gain a better understanding
of how rTMS influences brain networks.
Study summary:
Major depressive disorder (MDD) is a leading cause of global disability, and approximately
30% of MDD patients are resistant to antidepressant pharmacotherapy. Repetitive transcranial
magnetic stimulation (rTMS) of the left dorsolateral prefrontal cortex (DLPFC) is an
FDA-cleared intervention with proven efficacy in treatment-resistant depression, but only
30-40% of these patients achieve remission after a single course. Other studies have shown
that rTMS targeting the dorsomedial prefrontal cortex (DMPFC) is comparably effective, but
biomarkers for informing target site selection do not exist. Diagnostic heterogeneity has
been an obstacle to biomarker discovery efforts. Recently, we developed and validated an
approach to diagnose four novel MDD subtypes or "biotypes' defined by resting state
functional connectivity (RSFC) patterns and predicting differing antidepressant responses at
the individual level to rTMS. This pivotal trial will test a novel, biotype-guided treatment
selection strategy motivated by the hypothesis that an individual patient's likelihood of
responding to left DLFPC vs.DMPFC rTMS is determined in part by individual differences in 1)
the degree to which their symptoms are driven by dysfunction in specific cerebral network
targets comprising Valence Systems; and 2) the degree to which dysfunction in those targets
can be modulated by stimulating the left DLPFC or DMPFC. Subjects (N=348; 174 from this site)
will be randomized to receive a) biotype-guided rTMS targeting the DMPFC or left DLPFC; b) to
a disconfirmation arm receiving rTMS targeting the opposite site; and c) to a third arm
receiving FDA-cleared, standard-of-care rTMS targeting the left DLFPC, regardless of biotype.
The dosage and method of delivery of rTMS for all arms are as follows: intermittent theta
burst stimulation (iTBS) will be delivered at 120% of the resting motor threshold. It will be
administered in triplet 50 Hz bursts, repeated at 5 Hz with a duty cycle of 2 s on and 8 s
off, for a total of 600 pulses per session and a total duration of 3 min 9 s. All patients
will be assessed before and after treatment on a battery of fMRI, behavioral, and clinical
assessments. The primary goal is to confirm the efficacy of a novel RSFC biomarker-guided
approach to differential treatment selection in treatment resistant depression.
Criteria:
Inclusion Criteria:
- Age 22 to 65 years
- Major Depressive Disorder (by M.I.N.I., Diagnostic Statistical Manual V (DSM-V
criteria); Verification by evaluation by licensed study psychiatrist or psychologist
- At least moderately severe depression (17-item Hamilton Depression Rating Scale
greater than or equal to 18)
- Failure to respond in the current episode to at least 1 antidepressant medication at
an adequate dose and duration as measured by a modified Antidepressant Treatment
History Form
- Off antidepressants OR on a stable dose of antidepressants for greater than or equal
to four weeks with plans to remain on this stable dose during the study
- Any and all medication intended to treat depression or reduce symptoms of depression
must be discontinued or maintained at the same daily dose for ≥ 4 weeks prior to
enrollment and for the duration of the study
- Capacity to consent
- Written consent to allow communication between members of the research team and the
patient's outpatient clinician(s) (psychiatrist, psychotherapist, nurse practitioner,
primary care physician, or equivalent) as needed to ensure safety
- Ability to safely participate in MRI
- Fluent in English
Exclusion Criteria:
- Imminent risk of suicide (based on the Columbia-Suicide Severity Rating Scale)
- Current depressive episode greater than or equal to 2 years duration
- Presence of primary psychiatric diagnoses other than MDD and/or comorbid generalized
anxiety disorder (GAD) or phobia (e.g., post-traumatic stress disorder;
obsessive-compulsive disorder; MDD w psychotic features; primary psychotic illness;
Bipolar I or II)
- Evidence of cognitive impairment (MMSE score falling greater than or equal to 1 SD
below the mean score for his or her age and education)
- Have met criteria for any significant substance use disorder within the past six
months
- Recent onset (within 8 weeks of screening) psychotherapy, including, but not limited
to: any form of treatment, aid, or therapy that has intensively and extensively
examined the patient's psychological history, including, but not limited to: cognitive
behavioral therapy, dialectical behavioral therapy, interpersonal therapy, and
family-focused therapy
- Prior exposure to any form of TMS during the current depressive episode.
- Participated in any clinical trial with an investigational drug or device within the
past 6 weeks prior to screening
- History of neurosurgery to treat a neurological or psychiatric disorder
- Evidence or history of significant neurological disorder, including moderate-severe
head trauma, stroke, Parkinson's disease or other movement disorder (except benign
essential tremor), epilepsy, history of seizures, cerebrovascular disease, dementia,
increased intracranial pressure, history of repetitive or severe head trauma, or
primary or secondary tumors within the central nervous system
- Implanted electronic devices and/or conductive objects in or near the head, including
metal plates, aneurysm coils, cochlear implants, ocular implants, deep brain
stimulation devices and stents
- Any implanted device that is activated or controlled in any way by physiological
signals, including, but not limited to: deep brain stimulators, cochlear implants, and
vagus nerve stimulators
- Patients with major depressive disorder who have failed to receive clinical benefit
from Vagus Nerve Stimulation (VNS) or are currently receiving these therapies.
- History of seizures (except juvenile febrile seizures) or any condition/concurrent
medication that could notably lower seizure threshold
- Individuals who are pregnant, nursing, contemplating pregnancy within the length of
the study or, in the opinion of the investigator, not adherent to a medically
acceptable method of birth control
- History or presence of any disease, medical condition or physical condition that, in
the opinion of the investigator, may compromise, interfere, limit, effect, or reduce
the participant's ability to complete a treatment study lasting up to 21 weeks
- Abnormal bloodwork for electrolytes, thyroid and liver function
- Individuals who are taking > 300 mg daily dose of bupropion in any formulation
(immediate, extended, or slow-release)
- Individuals who are taking tricyclic antidepressants.
Original ID:
21-08023811; prev 1810019
Brief Title:
Biomarker-guided rTMS for Treatment Resistant Depression
Official Title:
Efficacy of Biomarker-guided rTMS for Treatment Resistant Depression
Study Source:
Weill Medical College of Cornell University
Oversight Authority:
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