Brain Oscillation-synchronized Stimulation of the Frontal Cortex in Major Depressive Disorder
BOSSFRONT2
Brain Oscillation Synchronized Stimulation of the Frontal Cortex: Randomized Controlled Trial Comparing Frontal Theta-oscillation Synchronized Repetitive TMS With Standard TMS in Major Depressive Disorder
1 other identifier
interventional
30
1 country
1
Brief Summary
Major depressive disorder (MDD) is a common severe psychiatric disease with enormous socioeconomic costs for the patient and society alike. Current pharmacological treatments are ineffective in a substantial fraction of patients and are accompanied by unwanted side effects. Using a novel non-invasive brain stimulation method to specifically target and modulate dysfunctional brain oscillations with high spatial and temporal precision this study will investigate the efficacy of EEG-triggered transcranial magnetic stimulation to alleviate de-pressive symptomatology in patients with MDD in a double-blind randomized controlled pilot clinical trial.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable major-depressive-disorder
Started Sep 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2023
CompletedFirst Submitted
Initial submission to the registry
January 8, 2024
CompletedFirst Posted
Study publicly available on registry
April 3, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2025
CompletedApril 3, 2024
January 1, 2024
1.9 years
January 8, 2024
March 26, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Montgomery-Åsberg Depression Rating Scale (MADRS)
The Montgomery-Åsberg Depression Rating Scale (MADRS) is a questionnaire for external assessment of the severity of a depressive syndrome. The questionnaire consists of 10 questions. The questions are rated on a 7-point scale from 0 to 6. The total score ranges from 0 (best outcome) to 60 (worst outcome) points by summing up. The questionnaire is considered gold standard in the assessment of depressive symptoms. It will be performed at baseline and at the end of the treatment.
baseline, immediately after the intervention
Secondary Outcomes (6)
MADRS (Montgomery-Åsberg Depression Rating Scale) 4 weeks after intervention
4 weeks after the last interventional session
HDRS-17 (Hamilton Depression Rating Scale-17)
baseline, immediately after the intervention
BDI-2 (Beck Depression Inventory-2)
baseline, immediately after the intervention
IDS-30 (Inventory of depressive symptoms-30)
baseline, immediately after the intervention
Response Rate
immediately after the intervention
- +1 more secondary outcomes
Study Arms (2)
Theta negative peak triggered TMS of left dmPFC
EXPERIMENTALRepetitive TMS (100 Hz triple pulses) of the dmPFC will be applied daily for four weeks (5 sessions per week on working days, 20 sessions in total). Stimulation triggers will be brain oscillation-synchronized based on EEG extracted over left dmPFC, synchronized with the negative peak of endogenous theta oscillations in left dmPFC.
iTBS TMS of left dlPFC
ACTIVE COMPARATORStandard intermittent Theta Burst Stimulation of the dlPFC will be applied daily for four weeks (5 sessions per week on working days, 20 sessions in total). Stimulation triggers will be applied independently of the EEG signal.
Interventions
Individually MR-neuronavigated TMS, 600 pulses, 120% RMT
Eligibility Criteria
You may qualify if:
- Subjects have to be 18 to 65 years old
- Subjects meet DSM-5 criteria for current major depressive disorder (MDD), confirmed with the Structured Clinical Interview for DSM-5.
- Subjects score 20 points or more on the Montgomery-Åsberg Depression Rating Scale (MADRS).
- Subjects must have had at least one non-response (meaning a failure to achieve remission) in a previous pharmacological antidepressant treatment trial of sufficient (meaning a doses considered to be effective (e.g., superior to placebo in controlled clinical trials) and the duration needs to be sufficient to produce a ro-bust therapeutic effect (e.g., 12 weeks)) dosage and duration as assessed by the ATHF; treatment failure can be for the current or any prior depressive episode; medication resistance for the current episode is not required.
- Subject is in good physical and mental health. Subject understands the study procedures and agrees to participate in the study by giving written informed consent.
- Subject is willing to comply with the study restrictions.
You may not qualify if:
- Subject is under the age of legal consent.
- Subject has a diagnosis of bipolar disorder.
- Subject suffers from current symptoms of psychosis.
- Subject has active suicidal ideation with plan and/or intent.
- A current major depressive episode longer than 5 years.
- Subject has a history of substance abuse or dependence within the past 2 years.
- Subject has a diagnosis of antisocial or borderline personality disorder.
- Subject suffers from other major psychiatric or medical comorbidity
- Subject has a history of seizure disorder
- Subject has a history of severe head injury with loss of consciousness.
- Subject had a prior brain surgery
- Subjects with intake of pro-convulsive medication, e.g. imipramine, amitriptyline, doxepin, nortriptyline, maprotiline, chlorpromazine, clozapine, foscarnet, ganciclovir, ritonavir, amphetamines, cocaine, MDMA (ecstasy), phencyclidine (PCP, angel's dust), ketamine, gamma-hydroxybutyrate (GHB), alcohol, theophylline, in accord with present consensus guidelines on safety, ethical considerations, and application of TMS in clinical practice and research.
- Daily intake of Benzodiazepines other than Lorazepam \>1 mg/d
- Subject has a cardiac pacemaker, implanted medication pump, intracardiac line, or acute, unstable cardiac disease.
- Subject has an intracranial implant (e.g., aneurysm clips, shunts, stimulators, cochlear implants, or electrodes) or any other metal object within or near the head (excluding the mouth) that cannot be safely removed.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University Hospital Tuebingen
Tübingen, Baden-Wurttemberg, 72076, Germany
Related Publications (1)
Lieb A, Zrenner B, Becker-Sadzio J, Gordon PC, Kozak G, Zrenner C, Martus P, Ziemann U, Fallgatter A. Brain oscillation-synchronized stimulation for major depression: a randomized controlled trial comparing EEG-triggered repetitive TMS with standard iTBS (Acronym: BOSSFRONT2). Eur Arch Psychiatry Clin Neurosci. 2026 Jan 21. doi: 10.1007/s00406-025-02176-9. Online ahead of print. No abstract available.
PMID: 41563436DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Ulf Ziemann, Prof.
University Hospital Tuebingen
- STUDY DIRECTOR
Andreas J Fallgatter, Prof.
University Hospital Tuebingen
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- In both conditions the identical setup is used consisting of Neuronavigation, EEG and TMS. Only in the experimental condition the treatment will be EEG-informed. In the control condition the treatment will be applied indepentently of the EEG signal.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 8, 2024
First Posted
April 3, 2024
Study Start
September 1, 2023
Primary Completion
August 1, 2025
Study Completion
August 1, 2025
Last Updated
April 3, 2024
Record last verified: 2024-01