CClinicalTrials.gg
Status unknownNCT02562703Updated Sep 29, 2015

tVNS for Depression

A Phase 1/2 interventional study of Transcutaneous Vagus Nerve Stimulation in Depressive Disorder, sponsored by Santa Casa Medical School. Status unknown. Open to participants aged 18 Years to 59 Years. Per ClinicalTrials.gov, last updated 2015-09-29.

Sponsored by Santa Casa Medical School · Phase 1/2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2015), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 1/2
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 59 Years
Sex
All
01

Study summary

This is a phase II, randomized, sham controlled, clinical trial. This clinical trial has as primary objective to evaluate changes in depressive symptoms of a transcutaneous Vagus Nerve Stimulation (tVNS) treatment protocol for patients with moderate / severe depressive episode.

02

Conditions studied

  • Depressive Disorder
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In context

Depressive Disorder

4,845 studies on the registry are indexed under Depressive Disorder; 514 are open to participants now.

This study's planned enrollment of 40 is below the median of 80 across 3,999 interventional studies indexed under Depressive Disorder.

Browse Depressive Disorder studies →

Lead sponsor

Santa Casa Medical School is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 59 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. patients between 18 and 69 years
  2. patients with a diagnosis of depression according to the SCID
  3. score greater than or equal to 18 on the Hamilton Rating Scale 17-item version (equivalent to moderate or severe depressive episode)
  4. agreement to participate in the study as recommended in the IC.

Exclusion criteria

Exclusion Criteria:

  1. patients with psychiatric indication for hospitalization
  2. patients with psychiatric comorbidity
  3. patients with a diagnosis of personality disorder
  4. presence of severe neurological or medical diseases such as neoplasms in activity, neurodegenerative diseases and chronic diseases uncompensated.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
40 participants (estimated)

Study arms

  • Active comparator
    ACTIVE tVNS

    tVNS will be applied by the external simulator (Monarch). The stimulation will be conducted at a frequency of 120 Hz with pulse duration of 250 microseconds. The current intensity will be individually established and should be equivalent to a slight feeling of not painful paresthesia .The stimulus generates a pulse and asymmetric biphasic waveform. Electrodes (25cm2) will be placed over the mastoid process bilaterally. The study protocol will follow the rational of our previous trials with TNS.

    Device: Transcutaneous Vagus Nerve Stimulation

  • Sham comparator
    SHAM tVNS

    tVNS will be applied by the external simulator (Monarch). The stimulation will be turned off after 60 seconds following previous trials.

    Device: Transcutaneous Vagus Nerve Stimulation

Interventions

  • DeviceTranscutaneous Vagus Nerve Stimulation

    tVNS will be applied by the external simulator (Monarch). The stimulation will be conducted at a frequency of 120 Hz with pulse duration of 250 microseconds. The current intensity will be individually established and should be equivalent to a slight feeling of not painful paresthesia .The stimulus generates a pulse and asymmetric biphasic waveform. Electrodes (25cm2) will be placed over the mastoid process bilaterally. The study protocol will follow the rational of our previous trials with TNS.

06

What researchers measure

Primary outcomes

  1. • Hamilton Depressive Rating Scale version 17 items (HDRS-17)

    This clinical trial has as primary objective to evaluate the effect of the tVNS on depressive symptoms measured by the Hamilton Depressive Rating Scale version 17 items (HDRS-17) in patients with moderate / severe depressive episode.

    Time frame: Change from baseline in depressive symptoms at 2 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Trevizol AP, Sato IA, Bonadia B, Liquidato BM, Barros MD, Cordeiro Q, Shiozawa P. Trigeminal Nerve Stimulation (TNS) for Major Depressive Disorder in Pregnancy: A Case Study. Brain Stimul. 2015 Sep-Oct;8(5):988-9. doi: 10.1016/j.brs.2015.07.034. Epub 2015 Jul 23. No abstract available. PubMed 26358492 ↗
  • Shiozawa P, Duailibi MS, da Silva ME, Cordeiro Q. Trigeminal nerve stimulation (TNS) protocol for treating major depression: an open-label proof-of-concept trial. Epilepsy Behav. 2014 Oct;39:6-9. doi: 10.1016/j.yebeh.2014.07.021. Epub 2014 Aug 23. PubMed 25150403 ↗
  • Cook IA, Schrader LM, Degiorgio CM, Miller PR, Maremont ER, Leuchter AF. Trigeminal nerve stimulation in major depressive disorder: acute outcomes in an open pilot study. Epilepsy Behav. 2013 Aug;28(2):221-6. doi: 10.1016/j.yebeh.2013.05.008. Epub 2013 Jun 14. PubMed 23773978 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 29, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02562703
Lead sponsor
Santa Casa Medical School
Responsible party
Pedro Shiozawa (Coordinator - Interdisciplinary Center for Clinical Neuromodulation, Santa Casa Medical School) — Principal investigator
First posted
Sep 29, 2015
Start date
Nov 2015
Primary completion
Feb 2016 (estimated)
Completion
Jul 2016 (estimated)
Last update
Sep 29, 2015

Study contacts

Alisson P Trevizol, MD
Contact
alisson.trevizol@hotmail.com

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2015. You cannot join it, but the record below documents what was studied.

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