- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04467164
Vagus Nerve Stimulation: Integration of Behavior and Cardiac Modulation (tVNS-MDD)
Study Overview
Status
Conditions
Detailed Description
Major depressive disorder (MDD) has been associated with alterations of the stress response circuitry, including the hypothalamus, amygdala, hippocampus, anterior cingulate cortex, ventromedial, dorsolateral and orbital prefrontal cortices. Many of these regions are morphologically and functionally sexually dimorphic and associated with vulnerability for sex differences in MDD. A major role for the stress response circuitry is to assess potentially stressful stimuli and respond with a neuroendocrine signal that coordinates homeostatic responses throughout the body. Neuroimaging studies have suggested that alterations in this circuitry are implicated in mood dysregulation, increased activation of the hypothalamic-pituitary-adrenal (HPA) axis, and imbalance between the sympathetic and parasympathetic nervous system in depressed persons. Thus, the development of novel interventions that regulate this system may have a significant impact on the improvement of clinical and physiological alterations of MDD.
Vagal nerve stimulation (VNS) is an FDA approved treatment for MDD that modulates circuitry implicated in mood regulation. Recently, a non-invasive variant of VNS, transcutaneous auricular vagus nerve stimulation (tVNS), which targets the auricular branch of the vagus nerve (ABVN) has been proposed. Moreover, previous studies have suggested that the dorsal medullary system receiving vagal afference inputs operates in tune with respiration and that tVNS may be optimized by gating ABVN stimulation to the exhalatory phase of the respiratory cycle. Thus, this study proposed to characterize the impact of respiratory-gated tVNS on the modulation of the stress response circuitry, vagal tone and depressed mood in patients with recurrent major depression (MDD).
Twenty premenopausal women with recurrent MDD in an active episode were recruited into a single-blind cross-over study that included two functional MRI visits, within a one week period, with simultaneous mood and physiological assessments. Randomization to exhalatory- or inhalatory-gated tVNS was performed to control for order effects. Subjects were exposed to a mild visual stress challenge that preceded and followed 30 minutes of exhalatory- or inhalatory-gated tVNS. The study hypothesis was that exhalatory-gated tVNS would have a significantly greater impact on the regulation of brain activity in stress response circuitry, vagal tone and depressed mood in MDD patients compared to inhalation-gated tVNS
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
Massachusetts
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Boston, Massachusetts, United States, 02114
- Massachusetts General Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria: Recurrent MDD diagnosis (≥ 2 episodes) with a current active depressive episode.
Exclusion Criteria:
- History of Axis I psychiatric diagnosis other than MDD or anxiety disorder - e.g., substance use disorder, psychotic disorder, or bipolar disorder.
- Current Suicidal Ideation with intent and/or plan or history of suicide attempt within the last year
- Use of psychotropic medications within four weeks prior to study with the exception of Selective Serotonin Reuptake Inhibitors (SSRIs) and Selective Norepinephrine Reuptake Inhibitors (SNRIs) class of antidepressant medication only
- Use of Tricyclic antidepressants (TCAs), Monoamine oxidase inhibitors (MAOIs), and Atypical agents
- History of cardiovascular disease
- History of neuroleptic use
- Past history of substance abuse or dependence within the past 12 months (excludes nicotine)
- Bleeding disorder or use of anticoagulants.
- Pregnancy
- Metallic implants or devices contraindicating magnetic resonance imaging.
- Use of beta blockers
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Exhalatory-gated tVNS
exhalatory-gated tVNS on the left auricle
|
Non-painful exhalatory-gated electrical stimulation of the auricle for 30 minutes during a functional magnetic resonance imaging session.
Other Names:
|
Active Comparator: Inhalatory-gated tVNS
inhalatory-gated tVNS on the left auricle
|
Non-painful inhalatory-gated electrical stimulation of the auricle for 30 minutes during a functional magnetic resonance imaging session.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Brain activity changes [percent blood oxygenation level dependent signal change] evaluated using functional magnetic resonance imaging during a visual stress challenge
Time Frame: 1 hour
|
Changes in functional magnetic resonance imaging- blood oxygenation level dependent signal (percent signal change) in response to a visual stress challenge compared between exhalatory and inhalatory-gated tVNS
|
1 hour
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in depressive symptoms assessed by the Beck Depression Inventory
Time Frame: 2 hours
|
Changes from baseline to post-stimulation in the total score of the Beck Depression Inventory compared between exhalatory and inhalatory-gated tVNS.
(Beck depression inventory minimum score= 0, maximum score= 63; higher total scores indicate more severe depressive symptoms)
|
2 hours
|
Changes in cardiac autonomic function during functional magnetic resonance imaging
Time Frame: 1 hour
|
Changes from baseline to post-stimulation in cardiac autonomic function (percent change of High Frequency power index) compared between exhalatory- and inhalatory-gated tVNS.
|
1 hour
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Jill M Goldstein, PhD, Massachusetts General Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2013P001259
- R21MH103468 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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