An interventional study of Active TBS-DLPFC and Active TBS-DMPFC in Treatment Resistant Depression, sponsored by Stanford University. Completed at 1 site in United States. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-07-29.
Sponsored by Stanford University · Not applicable, Interventional, and Treatment
This study will investigate the anti-anhedonic efficacy of a novel neurostimulation strategy termed accelerated intermittent theta burst stimulation (aiTBS) in participants with treatment resistant depression (TRD).
Repetitive transcranial magnetic stimulation (rTMS) is an established therapy for treatment-resistant depression. The approved method for treatment is 10Hz stimulation for 40 min over the left dorsolateral prefrontal cortex (L-DLPFC). This methodology has been effective in real world situations. The limitations of this approach include the duration of the treatment (approximately 40 minutes per treatment session, 5 days per week, for 4-8 weeks). Recently, the investigators have pursued modifying the treatment parameters to reduce treatment times with an accelerated treatment paradigm. This study aims to further study the accelerated protocol and examine changes in neuroimaging biomarkers.
461 studies on the registry are indexed under Depressive Disorder, Treatment-Resistant; 148 are open to participants now.
This study's enrollment of 70 is above the median of 53 across 388 interventional studies indexed under Depressive Disorder, Treatment-Resistant.
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The active group will receive theta-burst TMS stimulation.
Device: Active TBS-DLPFC
The active group will receive theta-burst TMS stimulation.
Device: Active TBS-DMPFC
The sham group will receive sham theta-burst TMS stimulation.
Device: Sham TBS-DLPFC or DMPFC
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 TMS system (MagVenture, Denmark).
Participants in the active stimulation group will receive intermittent TBS to DMPFC. The DMPFC 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 DMPFC using a MagPro TMS system (MagVenture, Denmark).
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.
Percentage Change in MADRS Score
The Montgomery-Asberg Depression Rating Scale (MADRS) is a 10-item self-survey administered scale, designed to be particularly sensitive to antidepressant treatment effects in patients with major depression. Score range: 0 to 54, higher scores correspond to more severe depressive symptoms.
Time frame: Baseline, immediate post treatment (up to 2 weeks post baseline), 4 weeks and 8 weeks post treatment.
Percentage Change in SHAPS Score
The Snaith-Hamilton Pleasure Scale is a 14-item self-report questionnaire designed to measure the reduced ability to experience pleasure. Score range: 0 to 14, higher scores indicate higher levels of anhedonia.
Time frame: Baseline, immediate post treatment (up to 2 weeks post baseline), 4 week and 8 week post treatment.
Participants received treatment over a period of 1 week starting approximately 3 - 6 days after baseline, and had follow up assessments at 4 weeks and 8 weeks post treatment.
| Milestone | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS |
|---|---|---|---|
| Started | 23 | 23 | 22 |
| Completed | 21 | 19 | 21 |
| Not completed | 2 | 4 | 1 |
The Montgomery-Asberg Depression Rating Scale (MADRS) is a 10-item self-survey administered scale, designed to be particularly sensitive to antidepressant treatment effects in patients with major depression. Score range: 0 to 54, higher scores correspond to more severe depressive symptoms.
| percentage of change | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS |
|---|---|---|---|
| Change Immediately Post Treatment | 32.06 ± 34.95 | 26.30 ± 37.42 | 25.13 ± 35.61 |
| Change at 4 Weeks Post Treatment | 20.10 ± 31.22 | 23.04 ± 35.40 | 18.21 ± 37.20 |
| Change at 8 Weeks Post Treatment | 16.44 ± 24.86 | 28.15 ± 23.99 | 7.61 ± 32.35 |
The Snaith-Hamilton Pleasure Scale is a 14-item self-report questionnaire designed to measure the reduced ability to experience pleasure. Score range: 0 to 14, higher scores indicate higher levels of anhedonia.
| percentage of change | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS |
|---|---|---|---|
| Change Immediately Post Treatment | 38.17 ± 47.24 | 18.97 ± 79.58 | 14.20 ± 80.14 |
| Change at 4 Week Post Treatment | 32.10 ± 54.97 | 29.60 ± 58.51 | 12.40 ± 56.95 |
| Change at 8 Week Post Treatment | 38.07 ± 54.26 | 36.72 ± 27.34 | 19.45 ± 56.08 |
Collected over Adverse events were collected over a 10 week period. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Active TBS-DLPFC | 0/23 (0%) | 0/23 (0%) | 0/23 (0%) |
| Active TBS-DMPFC | 0/23 (0%) | 0/23 (0%) | 0/23 (0%) |
| Sham TBS | 0/22 (0%) | 0/22 (0%) | 0/22 (0%) |
Participants who completed the protocol
| Age, Categorical(Participants) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| <=18 years | 0 | 0 | 0 | 0 |
| Between 18 and 65 years | 16 | 18 | 17 | 51 |
| >=65 years | 5 | 1 | 4 | 10 |
| Age, Continuous(years) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| Mean | 50.2 ± 16.2 | 38.8 ± 12.4 | 15.6 ± 15.2 | 47.2 ± 15.6 |
| Sex: Female, Male(Participants) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| Female | 9 | 11 | 13 | 33 |
| Male | 12 | 8 | 8 | 28 |
| Ethnicity (NIH/OMB)(Participants) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| Hispanic or Latino | 1 | 2 | 1 | 4 |
| Not Hispanic or Latino | 20 | 17 | 19 | 56 |
| Unknown or Not Reported | 0 | 0 | 1 | 1 |
| Race (NIH/OMB)(Participants) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 | 0 |
| Asian | 0 | 3 | 2 | 5 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 | 0 |
| Black or African American | 0 | 1 | 1 | 2 |
| White | 20 | 14 | 18 | 52 |
| More than one race | 0 | 1 | 0 | 1 |
| Unknown or Not Reported | 1 | 0 | 0 | 1 |
| Montgomery-Asberg Depression Rating Scale (MADRS)(score on a scale) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| Mean | 28.57 ± 7.14 | 24.68 ± 2.08 | 27.43 ± 4.83 | 26.97 ± 5.93 |
| Snaith-Hamilton Pleasure Scale (SHAPS)(score on a scale) | Active TBS-DLPFC | Active TBS-DMPFC | Sham TBS | Total |
|---|---|---|---|---|
| Mean | 9.29 ± 4.11 | 9.19 ± 2.79 | 7.16 ± 2.65 | 8.59 ± 3.36 |
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Depressive Disorder, Treatment-Resistant→
Stanford University