Theta Burst Stimulation in Young Adults With Depression

February 23, 2024 updated by: Erika Forbes
For the proposed 2-year study, the investigators will conduct a within-subject, counterbalanced investigation using functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) to examine the acute effects of theta-burst stimulation (TBS) on function in dorsomedial prefrontal cortex (dmPFC) in 35 young adults with depression (18-25 years, 50% female).

Study Overview

Detailed Description

Each participant will undergo 3 sessions of TMS, one each of continuous and intermittent TBS--with the goal of decreasing or increasing dmPFC responding, respectively--and one of sham TBS. Session order will be counterbalanced, with a double-blind approach to condition. Brain function, behavior, and mood will be assessed before and after each TBS session. Broadly, the investigators predict that inhibitory TBS to the dmPFC will enhance neural, behavioral, and subjective aspects of reward function by reducing dmPFC function and dmPFC connectivity with the ventral striatum (VS).

Study Type

Interventional

Enrollment (Actual)

29

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • The University of Pittsburgh, Department of Psychiatry

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 25 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

• DSM-5 Diagnosis of Major Depressive Disorder, Persistent Depressive Disorder (Dysthymia), Other Specified Depressive Disorder, or Other Unspecified Depressive Disorder

Exclusion Criteria:

  • Bipolar disorder, substance dependence, or lifetime history of psychosis
  • Neurological disorder (e.g., seizure disorder)
  • Pregnant
  • MRI contradictions: claustrophobia, permanent orthodontic devices, metal implants or other forms of metal in the body that cannot be removed

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intermittent, Continuous, Sham Order
3 sessions of theta burst stimulation administered in the following order: 1) Intermittent theta burst stimulation, 2) Continuous theta burst stimulation, 3) Sham theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.
Experimental: Intermittent, Sham, Continuous Order
3 sessions of theta burst stimulation administered in the following order: 1) Intermittent theta burst stimulation, 2) Sham theta burst stimulation, 3) Continuous theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.
Experimental: Continuous, Intermittent, Sham Order
3 sessions of theta burst stimulation administered in the following order: 1) Continuous theta burst stimulation, 2) Intermittent theta burst stimulation, 3) Sham theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.
Experimental: Continuous, Sham, Intermittent Order
3 sessions of theta burst stimulation administered in the following order: 1) Continuous theta burst stimulation, 2) Sham theta burst stimulation, 3) Intermittent theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.
Experimental: Sham, Intermittent, Continuous Order
3 sessions of theta burst stimulation administered in the following order: 1) Sham theta burst stimulation, 2) Intermittent theta burst stimulation, 3) Continuous theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.
Experimental: Sham, Continuous, Intermittent Order
3 sessions of theta burst stimulation administered in the following order: 1) Sham theta burst stimulation, 2) Continuous theta burst stimulation, 3) Intermittent theta burst stimulation.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered without interruption for a total duration of 40 seconds.
Theta Burst Stimulation, a form of Transcranial Magnetic Stimulation, will be applied to the dorsomedial prefrontal cortex. will include 600 pulses delivered in brief bursts of three pulses with a frequency of 50 Hz, at an intensity of 110% of resting motor threshold, and administered every 200 ms (5 Hz). Bursts will be delivered during 2 second periods (10 bursts/period) interleaved with 8-second stimulation-free intervals, for a total duration of 190 seconds.
For the sham of theta burst stimulation, the device providing Theta Burst Stimulation can be placed in the same position and turned on, creating a similar experience for the participant, without providing any neural stimulation. Sham TBS will be delivered with a Cool-B65 Active/Placebo Coil, which includes a sham setting, and MagLink research software.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dorsomedial Prefrontal Cortex Activation
Time Frame: Task fMRI is conducted after each of 3 TBS sessions (intermittent, continuous, sham; in randomized, counterbalanced order) at approx 3, 5, and 7 weeks after study entry.
This measure captures brain function in the dorsomedial prefrontal cortex (dmPFC) based on blood oxygen level dependent (BOLD) response measured using functional magnetic resonance imaging (fMRI) during a reward task. Data are analyzed using Statistical Parametric Mapping. Magnitude of dmPFC response is in arbitrary units, with higher values reflecting higher activation. Theoretical minimum and maximum scores do not exist. Study hypotheses predict that dmPFC will decrease (based on statistical significance) with continuous TBS.
Task fMRI is conducted after each of 3 TBS sessions (intermittent, continuous, sham; in randomized, counterbalanced order) at approx 3, 5, and 7 weeks after study entry.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Positive Affect
Time Frame: pre and post each of 3 TBS administrations, with TBS lasting up to 190 seconds. cTBS, iTBS, and sham TBS each occurred in a single day.
Self-reported pleasant mood was measured with the Positive Affect (PA) scale of the Positive and Negative Affect Schedule (PANAS). This scale consists of a number of words that describe different feelings and emotions, participants are instructed to read each item and then mark to which extent they have felt like this in the past few hours. The PA scale contains 10 items, with each item rated on a 5-point scale of 1 (very slightly or not at all), 2 (a little), 3 (moderately), 4 (quite a bit), or 5 (extremely). Higher scores indicate greater PA. The total PA score is calculated by finding the sum of the 10 positive items. Scores range from 10-50. A higher score indicates higher intensity of positive affect. The PANAS PA data analyzed were from administrations pre- and post-TBS at visits #3-5 (approximately 30 minutes before and 1 hour after TBS administration).
pre and post each of 3 TBS administrations, with TBS lasting up to 190 seconds. cTBS, iTBS, and sham TBS each occurred in a single day.
VS-dmPFC Functional Connectivity
Time Frame: Task fMRI is conducted after each of 3 TBS sessions (intermittent, continuous, sham; in randomized, counterbalanced order). Sessions occur at approx 3, 5, and 7 weeks after study entry.
Outcome measure is assessed with functional magnetic resonance imaging (fMRI), in which brain function is recorded during a reward task. Functional connectivity between 2 regions of neural reward circuitry, the ventral striatum (VS) and the dorsomedial prefrontal cortex (dmPFC), is computed using general psychophysiologic interaction for this pair of regions in Statistical Parametric Mapping software. FC data are in arbitrary units, with higher values reflecting higher degree of coordination between the regions. Theoretical minimum and maximum scores do not exist. Higher scores do not represent "better" or "worse" outcomes or change in health. Based on study hypotheses, FC is predicted to decrease with continuous TBS, based on significance of statistical tests.
Task fMRI is conducted after each of 3 TBS sessions (intermittent, continuous, sham; in randomized, counterbalanced order). Sessions occur at approx 3, 5, and 7 weeks after study entry.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Erika E Forbes, Ph.D., The University of Pittsburgh

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 31, 2020

Primary Completion (Actual)

July 31, 2022

Study Completion (Actual)

July 31, 2022

Study Registration Dates

First Submitted

October 29, 2018

First Submitted That Met QC Criteria

November 8, 2018

First Posted (Actual)

November 9, 2018

Study Record Updates

Last Update Posted (Actual)

March 19, 2024

Last Update Submitted That Met QC Criteria

February 23, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • PRO18040159
  • R21MH117400 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

We will share all individual participant data (IPD) that underlie results in publications that report findings related to tests of our major hypotheses.

IPD Sharing Time Frame

Data will become available after results of planned tests are published or 5 years after completion of data collection, whichever occurs first. Data will remain available for 5 years.

IPD Sharing Access Criteria

We will create procedures for other researchers to request data and will maintain quality assurance of data requests and data sharing. Researchers who share data will be affiliated and in good standing with academic institutions, will have current certification of training in responsible conduct of research, and will complete data requests describing the purpose of the project, the data requested, and the data analysis plan. Requests will be reviewed by the Principal Investigator and, if needed, other members of the research team. Criteria for sharing data will include characteristics described above, as well as scientific merit of the proposed use of data.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

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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