Trial Outcomes & Findings for Establishing a Dose-response Relationship With Accelerated Transcranial Magnetic Stimulation (NCT NCT04243798)

NCT ID: NCT04243798

Last Updated: 2026-03-30

Results Overview

Assessment of functional connectivity of sgACC to the DMN using magnetic resonance imaging.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

48 participants

Primary outcome timeframe

Visit 3 (Day 1), Visit 4 (Day 2), Visit 5 (Day 3), Visit 6 (Day 4), Visit 7 (Day 5) and Immediate Post Treatment Follow Up (Visit 8 and Day 6)

Results posted on

2026-03-30

Participant Flow

Participant milestones

Participant milestones
Measure
Active TBS-DLPFC
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Overall Study
STARTED
24
24
Overall Study
COMPLETED
24
23
Overall Study
NOT COMPLETED
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Active TBS-DLPFC
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Overall Study
Withdrawal by Subject
0
1

Baseline Characteristics

Establishing a Dose-response Relationship With Accelerated Transcranial Magnetic Stimulation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Active TBS-DLPFC
n=24 Participants
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
n=24 Participants
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Total
n=48 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Age, Categorical
Between 18 and 65 years
24 Participants
n=4 Participants
24 Participants
n=28 Participants
48 Participants
n=10 Participants
Age, Categorical
>=65 years
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Age, Continuous
44.8 years
STANDARD_DEVIATION 11.8 • n=4 Participants
47.3 years
STANDARD_DEVIATION 12.1 • n=28 Participants
46.05 years
STANDARD_DEVIATION 16.96 • n=10 Participants
Sex: Female, Male
Female
14 Participants
n=4 Participants
9 Participants
n=28 Participants
23 Participants
n=10 Participants
Sex: Female, Male
Male
10 Participants
n=4 Participants
15 Participants
n=28 Participants
25 Participants
n=10 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=4 Participants
4 Participants
n=28 Participants
5 Participants
n=10 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants
n=4 Participants
20 Participants
n=28 Participants
43 Participants
n=10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=4 Participants
1 Participants
n=28 Participants
1 Participants
n=10 Participants
Race (NIH/OMB)
Asian
1 Participants
n=4 Participants
6 Participants
n=28 Participants
7 Participants
n=10 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Race (NIH/OMB)
White
22 Participants
n=4 Participants
17 Participants
n=28 Participants
39 Participants
n=10 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=4 Participants
0 Participants
n=28 Participants
1 Participants
n=10 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=4 Participants
0 Participants
n=28 Participants
0 Participants
n=10 Participants
Region of Enrollment
United States
24 Participants
n=4 Participants
24 Participants
n=28 Participants
48 Participants
n=10 Participants

PRIMARY outcome

Timeframe: Visit 3 (Day 1), Visit 4 (Day 2), Visit 5 (Day 3), Visit 6 (Day 4), Visit 7 (Day 5) and Immediate Post Treatment Follow Up (Visit 8 and Day 6)

Assessment of functional connectivity of sgACC to the DMN using magnetic resonance imaging.

Outcome measures

Outcome measures
Measure
Active TBS-DLPFC
n=19 Participants
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
n=20 Participants
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 3 (Day 1)
0.0382 Spearman Correlation Coefficient
Standard Deviation 0.0387
0.0241 Spearman Correlation Coefficient
Standard Deviation 0.0281
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 4 (Day 2)
0.0300 Spearman Correlation Coefficient
Standard Deviation 0.0374
0.0196 Spearman Correlation Coefficient
Standard Deviation 0.0391
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 5 (Day 3)
0.0248 Spearman Correlation Coefficient
Standard Deviation 0.0296
0.0347 Spearman Correlation Coefficient
Standard Deviation 0.0303
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 6 (Day 4)
0.0252 Spearman Correlation Coefficient
Standard Deviation 0.0366
0.0210 Spearman Correlation Coefficient
Standard Deviation 0.0322
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 7 (Day 5)
0.0239 Spearman Correlation Coefficient
Standard Deviation 0.0336
0.0205 Spearman Correlation Coefficient
Standard Deviation 0.0380
Change in Resting State Functional Connectivity of the Subgenual Anterior Cingulate Cortex (sgACC) and the Default Mode Network (DMN).
Visit 8 (Day 6)
0.0251 Spearman Correlation Coefficient
Standard Deviation 0.0343
0.0316 Spearman Correlation Coefficient
Standard Deviation 0.0339

SECONDARY outcome

Timeframe: Visit 3 (Day 1), Visit 4 (Day 2), Visit 5 (Day 3), Visit 6 (Day 4), Visit 7 (Day 5) and Immediate Post Treatment Follow Up (Visit 8/Day 6))

Assessment of functional connectivity of sgACC to the DMN using magnetic resonance imaging.

Outcome measures

Outcome measures
Measure
Active TBS-DLPFC
n=18 Participants
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
n=17 Participants
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 3
0.0379 Spearman Correlation Coefficient
Standard Deviation 0.0386
0.0233 Spearman Correlation Coefficient
Standard Deviation 0.0282
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 4
0.0289 Spearman Correlation Coefficient
Standard Deviation 0.0382
0.0165 Spearman Correlation Coefficient
Standard Deviation 0.0399
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 5
0.0231 Spearman Correlation Coefficient
Standard Deviation 0.0296
0.0368 Spearman Correlation Coefficient
Standard Deviation 0.0281
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 6
0.0224 Spearman Correlation Coefficient
Standard Deviation 0.0358
0.0247 Spearman Correlation Coefficient
Standard Deviation 0.0311
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 7
0.0231 Spearman Correlation Coefficient
Standard Deviation 0.0341
0.0210 Spearman Correlation Coefficient
Standard Deviation 0.0408
Relationship Between Clinical Improvement and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 8
0.024 Spearman Correlation Coefficient
Standard Deviation 0.0350
0.0326 Spearman Correlation Coefficient
Standard Deviation 0.0349

SECONDARY outcome

Timeframe: Visit 3 (Day 1), Visit 4 (Day 2), Visit 5 (Day 3), Visit 6 (Day 4), Visit 7 (Day 5) and Immediate Post Treatment Follow Up (Visit 8/Day 6))

Assessment of functional connectivity of sgACC to the DMN using magnetic resonance imaging.

Outcome measures

Outcome measures
Measure
Active TBS-DLPFC
n=19 Participants
The active group will receive theta-burst TMS stimulation. Active TBS-DLPFC: Participants in the active stimulation group will receive intermittent TBS to left DLPFC. The L-DLPFC will be targeted utilizing the Localite neuronavigation system. Stimulation intensity will be standardized at 90% of RMT and adjusted to the skull to cortical surface distance (see Nahas 2004). Stimulation will be delivered to the L-DLPFC using a MagPro x100 TMS system (MagVenture, Denmark).
Sham TBS-DLPFC
n=20 Participants
The sham group will receive sham theta-burst TMS stimulation. Sham TBS-DLPFC: The parameters in the sham arm will be as above with the internal randomization of the device internally switching to sham in a blinded fashion.
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 8
0.0251 Spearman Correlation Coefficient
Standard Deviation 0.0343
0.0316 Spearman Correlation Coefficient
Standard Deviation 0.0340
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 3
0.0382 Spearman Correlation Coefficient
Standard Deviation 0.0387
0.0241 Spearman Correlation Coefficient
Standard Deviation 0.0281
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 4
0.0300 Spearman Correlation Coefficient
Standard Deviation 0.0374
0.0196 Spearman Correlation Coefficient
Standard Deviation 0.0391
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 5
0.0248 Spearman Correlation Coefficient
Standard Deviation 0.0296
0.0348 Spearman Correlation Coefficient
Standard Deviation 0.0303
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 6
0.0252 Spearman Correlation Coefficient
Standard Deviation 0.0366
0.0210 Spearman Correlation Coefficient
Standard Deviation 0.0322
Relationship Between Acute Mood State and Resting State Functional Connectivity Between the sgACC and DMN in Active vs. Sham Participants.
Visit 7
0.0239 Spearman Correlation Coefficient
Standard Deviation 0.0336
0.0205 Spearman Correlation Coefficient
Standard Deviation 0.0380

Adverse Events

Active TBS-DLPFC

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Sham TBS-DLPFC

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Principal Investigator

Stanford University

Phone: 650-736-2233

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place