Study Stopped
Protocol discontinued for futility
Intermittent Theta Burst Stimulation for MDD
iTBS
A Sham-controlled Study of Prefrontal Intermittent Theta Burst Stimulation in Major Depressive Disorder
1 other identifier
interventional
30
1 country
1
Brief Summary
This study will evaluate the effectiveness of intermittent Theta Burst Stimulation for patients with Major Depressive Disorder.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable major-depressive-disorder
Started Dec 2017
Longer than P75 for not_applicable major-depressive-disorder
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 21, 2015
CompletedFirst Posted
Study publicly available on registry
July 22, 2015
CompletedStudy Start
First participant enrolled
December 9, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 8, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 8, 2027
September 22, 2025
September 1, 2025
10 years
July 21, 2015
September 18, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Percent change in Hamilton Depression Scale (HamD17)
two week
Study Arms (3)
Open-label
EXPERIMENTALTheta burst stimulation (TBS) is a form of repetitive transcranial magnetic stimulation (TMS). Standard TBS parameters consisting of 3-pulse, 50Hz bursts every 200 ms (5 Hz) at an intensity of 80% motor threshold (MT) will be utilized. Intermittent TBS will be delivered in 2-second trains of bursts repeated every 10 seconds for a total of 570 seconds (1800 pulses) in each session. Each treatment session thus involves \< 10 minutes of stimulation. The subject and researchers know what treatment is being administered.
Blinded Active
ACTIVE COMPARATORStandard TBS parameters consisting of 3-pulse, 50Hz bursts every 200 ms (5 Hz) at an intensity of 80% motor threshold (MT) will be utilized. Intermittent TBS will be delivered in 2-second trains of bursts repeated every 10 seconds for a total of 570 seconds (1800 pulses) in each session. Each treatment session thus involves \< 10 minutes of stimulation. The subject and researcher will not know what type of treatment will be administered.
Blinded Sham
SHAM COMPARATORThis is a sham treatment which will mimic the open-label and blinded active to enable the effects of the supposedly "active" treatment to be assessed objectively. The subject and researcher will not know what type of treatment will be administered. Each treatment session will be \< 10 minutes in duration.
Interventions
Transcranial magnetic stimulation system
Eligibility Criteria
You may qualify if:
- Outpatients with non-psychotic, unipolar Major Depressive Disorder (MDD) assessed via the MINI structured interview
- Must have been on a stable dose of antidepressant medication (excluding tricyclic antidepressants) for at least 1 month prior to randomization, and with significant residual MDD symptoms as evidenced by a HamD17 score \> 17;
- If receiving medication other than for depression (e.g., anxiety, sleep, mood stabilization), must have been on stable dose for at least 1 month prior to randomization
- A history of treatment failure with at least one adequate trial of an antidepressant medication in the current episode, assessed by the Antidepressant Treatment and History Form
- Age range: 22-65.
You may not qualify if:
- Patient is mentally or legally incapacitated, unable to give informed consent.
- Patients with psychosis (psychotic depression, schizophrenia, or schizoaffective diagnoses (lifetime)); bipolar disorder (lifetime); dementia (lifetime); current Mini Mental State Examination ≤ 24; delirium or substance abuse within the past 6 months; eating disorder within the past year; obsessive-compulsive disorder (lifetime); post-traumatic stress disorder within the past year; acute risk for suicide or self-injurious behavior. Patients with diagnostic uncertainty or ambiguity (e.g. rule-out pseudodementia of depression) will be excluded.
- Patients with a HamD suicidality item score of '3' or '4,' corresponding to "suicidal ideas or gestures" or "attempts at suicide," will be excluded.
- Patients with exposure to Electroconvulsive Therapy within the past 6 months, previous TMS treatment for any condition, or Vagus Nerve Stimulation treatment (lifetime).
- Patients who have met diagnostic criteria for any current substance abuse disorder at any time in the 6 months prior to enrollment.
- Past history of skull fracture; cranial surgery entering the calvarium; space occupying intracranial lesion; stroke, Cerebral Vascular Accident, or Transient Ischemic Attacks; cerebral aneurysm; Parkinson's or Huntington's disease; or Multiple Sclerosis.
- Any history of intracranial implant including cochlear implant, implanted electrodes/stimulators, aneursym clips or coils, stents, bullet fragments; implanted cardiac pacemaker, defibrillator, vagus nerve stimulator, deep brain stimulator; or other implanted devices or objects contraindicated by product labeling.
- Neurological conditions including epilepsy, cerebrovascular disease, dementia, increased intracranial pressure, history of repetitive or severe head trauma, or with primary or secondary tumors in the Central Nervous System.
- current pregnancy, breast feeding, or not using a medically accepted means of contraception.
- Infection or loss of integrity of skin over the forehead, where the device will be positioned.
- Increased risk of seizure as indicated by: a) history (or family history) of seizure or epilepsy; b) history of stroke, head injury, or unexplained seizures; c) concurrent medication use such as tricyclic antidepressants, neuroleptic medications, or other drugs that are known to lower the seizure threshold; d) secondary conditions that may significantly alter electrolyte balance or lower seizure threshold; e) no quantifiable motor threshold such that TMS dosage cannot be accurately determined.
- Other medical contraindications to any of the study procedures.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UCLA TMS Clinic and Research Service
Los Angeles, California, 90025, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
July 21, 2015
First Posted
July 22, 2015
Study Start
December 9, 2017
Primary Completion (Estimated)
December 8, 2027
Study Completion (Estimated)
December 8, 2027
Last Updated
September 22, 2025
Record last verified: 2025-09