Theta-Burst Stimulation in Major Depressive Episodes With Mixed Characteristics.

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-08

Study Completion Date

2021-05-01

Brief Summary

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The investigators will perform a double-blind, randomized, sham-controlled clinical trial of theta-burst stimulation (TBS) in mixed depressive episodes of both bipolar and major depressive disorders. Will be selected 90 patients aged 18-65 years with diagnosis of TB (I or II) or MDD in moderate or severe major depressive episode with mixed features. The primary endpoint of efficacy will be a continuous outcome of change in Montgomery-Asberg Depression Rating Scale (MADRS) from baseline to week 3.

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Detailed Description

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INTRODUCTION: Mixed-specifier mood disorders are probably a different subgroup in terms of response to treatment, socio-demographic parameters, course and family history. The investigators will perform a clinical trial of theta-burst stimulation (TBS) in mixed depressive episodes of both bipolar (I and II) and major depressive disorders. METHODS: The study is designed as a randomized, sham-controlled, double-blinded clinical trial evaluating TBS for the treatment of moderate or severe major depressive episodes with mixed features of patients receiving at least one first or second line pharmacological treatment for depressive episodes without adequate response. Ninety adult (18 to 65 yo) patients will be enrolled and submitted to 6-week (comprising 5 consecutive days a week sessions for the first 3 weeks and then 2 days a week for a further 3 week) of inhibitory followed by excitatory TBS in dorsolateral prefrontal cortex. Participants will be assessed using clinical and neuropsychological tests before and after the intervention. The primary outcome is change in Montgomery-Asberg Depression Scale (MADRS) score over time and across groups. Cognitive parameters will also be assessed with neuropsychological tests.

Conditions

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Depressive Episode Depressive Disorder Bipolar Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Double-blind, randomized, parallel-group, 6-week, sham-controlled clinical trial.

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Allocation masking will be done through sequentially numbered cards that will determine which group each patient will belong to. The card determines whether the coil to be used will produce actual or simulated stimulation. A secretary who does not participate directly in the research will be responsible for handling the numbered cards to the patient prior to each session. Participants and staff will not fully know the status of allocation groups.

Study Groups

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Active TBS Arm

Patients randomized to this arm will receive active TBS 5 consecutive days of the week (Monday to Friday) in the first 3 weeks and then 2 alternate days of the week (with interval of at least 1 day between sessions) for another 3 weeks.

Group Type ACTIVE_COMPARATOR

Active Theta Burst Stimulation (TBS)

Intervention Type DEVICE

Each session will be comprised of ACTIVE TBS: first, continuous inhibitory stimulation (cTBS) in the right dorsolateral prefrontal cortex followed by intermittent excitatory stimulation (iTBS) in the left dorsolateral prefrontal cortex.

Sham TBS Arm

Patients randomized to this arm will receive sham TBS 5 consecutive days of the week (Monday to Friday) in the first 3 weeks and then 2 alternate days of the week (with interval of at least 1 day between sessions) for another 3 weeks.

Group Type SHAM_COMPARATOR

Sham Theta Burst Stimulation (TBS)

Intervention Type DEVICE

The sham-TBS sessions will be performed using an identical coil that produces SHAM Stimulation: first, sham continuous inhibitory stimulation (cTBS) in the right dorsolateral prefrontal cortex followed by sham intermittent excitatory stimulation (iTBS) in the left dorsolateral prefrontal cortex.

Interventions

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Active Theta Burst Stimulation (TBS)

Each session will be comprised of ACTIVE TBS: first, continuous inhibitory stimulation (cTBS) in the right dorsolateral prefrontal cortex followed by intermittent excitatory stimulation (iTBS) in the left dorsolateral prefrontal cortex.

Intervention Type DEVICE

Sham Theta Burst Stimulation (TBS)

The sham-TBS sessions will be performed using an identical coil that produces SHAM Stimulation: first, sham continuous inhibitory stimulation (cTBS) in the right dorsolateral prefrontal cortex followed by sham intermittent excitatory stimulation (iTBS) in the left dorsolateral prefrontal cortex.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Current mixed depression in any mood disorder (bipolar I, bipolar II or major depressive disorder) assessed with Montgomery-Asberg Depression Rating Scale (MADRS) score ≥ 20 points AND Young Mania Rating Scale (YMRS) score ≥ 1 point in 3 or more items.
* Any appropriate first or second line pharmacological regimen in accordance with CANMAT guidelines to treat a major depressive episode in major depressive disorder (Agomelatina 25-50 mg/dia; Bupropiona 150-300 mg/dia; Citalopram 20-40 mg/dia; Desvenlafaxina 50 - 100 mg/dia; Duloxetina 60 - 120mg/dia; Escitalopram 10 - 20 mg/dia; Fluoxetina 20 - 60 mg/dia; Fluvoxamina 100 - 300 mg/dia; Mirtazapina 15 - 45 mg/dia; Paroxetina 20 - 60 mg/dia; Sertralina 50 - 200 mg/dia; Venlafaxina 75 - 225 mg/dia; Vortioxetina 10 - 20 mg/dia; Amitriptilina 150 - 300 mg/dia; Imipramina 150 - 300 mg/dia; Clomipramina 150 - 200 mg/dia; Nortriptilina 75 - 150 mg/dia; Trazodona 150 - 300 mg/dia; Quetiapina 150 - 300mg/dia), bipolar I (Quetiapina 300 - 600 mg/dia; Lítio litemia 0,6 - 1,2 mEq/L; Lamotrigina 100 - 200 mg/dia; Lurasidona 40 - 80 mg/dia; Lítio/Divalproato + Lurasidona; Lítio/Divalproato + Lamotrigina; Olanzapina 5 - 20 mg/dia + Fluoxetina 20 - 60 mg/dia; Divalproato de sódio; Lítio/Divalproato + ISRS/Bupropiona) or bipolar II disorder (Quetiapina 300 - 600 mg/dia; Lítio; Lamotrigina; Bupropiona; Sertralina; Venlafaxina).

Exclusion Criteria

* Concomitant diagnosis of other neuropsychiatric disorders such as: schizophrenia, dementias, mental retardation, organic mental disorder, or epilepsy;
* Acute suicide ideation (assessed by interview and clinical evaluation);
* Suspected or confirmed pregnancy;
* Women in breastfeeding;
* Severe or unstable clinical disease;
* Specific contraindications to TBS: previous epileptic seizures; change in electroencephalogram at some point in life; previous stroke; previous severe TBI (with neurosurgery); metallic object on head (except mouth) as projectile piece, surgical clip, welding fragments; any implanted device (cardiac pacemaker, intravenous catheter).

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No