Accelerated bilateral DMPFC iTBS for major depression
Official title: Investigation of the Relationship Between Changes in Neurobiological Biomarkers After Accelerated Transcranial Magnetic Stimulation Treatment and Treatment Response in Patients With Major Depressive Disorder
Run by Istanbul University - Cerrahpasa · NCT07603804 · Data updated 2026-11-12
This study tests whether a fast, multiple-daily session brain stimulation approach can help adults with major depressive disorder who have not fully benefited from standard antidepressants.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 35 (estimated) |
| Sponsor | Istanbul University - Cerrahpasa Academic / other |
| Locations | 1 site (Istanbul) |
| Status | Recruiting |
| Started | March 8, 2026 |
| Main results expected | December 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | May 22, 2026 |
| Trial ID | NCT07603804 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18–65 with MDD who have not adequately responded to at least one antidepressant and have a baseline HAM-D score of 14 or higher.
✕Probably not a fit
Individuals with certain psychiatric or neurological exclusions, or those unable to adhere to the daily intensive schedule, may not experience benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In adults with major depressive disorder who did not respond adequately to at least one antidepressant, the trial delivers accelerated bilateral dorsomedial prefrontal cortex iTBS over five days with four sessions per day (20 sessions total). Participants may receive up to an additional 10 sessions depending on clinical response. Outcomes include changes in depression and anxiety scores and safety, with biomarker analyses (cortisol, ACTH, BDNF, IL-1β, IL-6, TNF-α, CRP) to explore biological correlates of response. Assessments occur at baseline, during treatment, at the end of treatment, and at one-month follow-up. It is a single-arm interventional study sponsored by Istanbul University - Cerrahpasa, conducted in Istanbul.
Why it matters
Potential benefit: If successful, participants may experience faster or greater improvement in depressive symptoms with a noninvasive brain stimulation approach.
How similar studies have gone: Prior neuromodulation studies with iTBS have shown potential antidepressant effects, but accelerated bilateral DMPFC protocols for TRD are relatively novel in this setting.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age between 18 and 65 years * Diagnosis of Major Depressive Disorder according to DSM-5 criteria * Inadequate response to at least one adequate antidepressant treatment trial * Hamilton Depression Rating Scale (HAM-D) score ≥14 at baseline * Stable dose of antidepressant medication for at least 4 weeks prior to study entry * Ability to provide written informed consent Exclusion Criteria: * History of bipolar disorder, schizophrenia, schizoaffective disorder, or psychotic depression * Current substance use disorder * Neurological disorders that may affect brain function (e.g., epilepsy, multiple sclerosis, dementia, Parkinson's disease) * History of epileptic seizures * Severe head trauma * Presence of metal implants in the head or neck region * Cochlear implants * Cardiac pacemaker or implanted electronic devices * History of deep brain stimulation or vagus nerve stimulation * Previous neurosurgical procedures * Pregnancy or breastfeeding * Use of medications that may significantly affect neuroendocrine or inflammatory markers (e.g., corticosteroids, immunomodulators) * Endocrine disorders affecting the hypothalamic-pituitary-adrenal axis (e.g., Cushing's syndrome, Addison's disease, thyroid disorders) * Autoimmune diseases (e.g., systemic lupus erythematosus, rheumatoid arthritis, Hashimoto thyroiditis) * Recent surgery or acute infection * Active suicidal crisis, severe agitation, or inability to comply with study procedures
Where it's running
-
Istanbul University - Cerrahpasa
Istanbul, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Merve Rana Altunel Ülkü, MD
- Email: ranaltunel@gmail.com
- Phone: +90 506 303 10 68
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.