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replaced by other study
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With a growing number of elderly persons, geriatric depression - associated with important morbidity and mortality- is becoming a significant health problem. Given the risk of polypharmacy and increased side effects, alternative non pharmaceutical treatments such as repetitive transcranial magnetic stimulation (rTMS) may be a solution. Given recent positive results with accelerated rTMS in the elderly depressed, it is of interrest to continue to develop promising non-invasive treatment stimulations. The FDA approved deep brain TMS (dTMS) technique may be a promising option, targeting the brain underneath the neocortex with potentially better response and remission rates. Therefore, in a sham-controlled cross-over fashion, the investigators will treat 44 geriatric depressed patients with accelerated dTMS (5 sessions/day over 4 days only), and evaluate clinical efficacy and safety. Because new introduced rTMS paradigms should be rigorously neurobiologically examined before applying them on a regular basis, this research will include multimodal brain imaging techniques to elucidate the working mechanisms of this application in order to optimize treatment for such populations.
An initially double-blind sham-controlled cross-over study in geriatric depressed patients to investigate whether accelerated (a)dTMS is a safe and effective clinical option for this cohort. After the first week evaluations and MRI, there will be an open label phase in which patients who did receive active treatment in the first week will not receive any further rTMS sessions, those patients who had received sham however will get their active treatment in the second week. The independent researcher will use the treatment allocation list to inform the investigators if an active treatment faze is needed in the second week.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| active accelerated deep rTMS | Active Comparator | Stimulation: We will use a Magstim Rapid2 Plus1 Magnetic Stimulator connected to a Brainsway H1 coil, which includes a sham option. In analogy to our former accelerated rTMS studies (2, 3), all patients will receive 20 dTMS sessions (5 sessions per day; 4 consecutive days) with a stimulation intensity of 120% of the subject's resting MT, as reported by Levkovitz et al.(4). Furthermore, we selected these FDA approved dTMS parameters, so that for one session each dTMS repetition includes 2-sec pulse trains separated by 20-sec inter-train intervals. Patients will receive 55 trains in each treatment session, for a total of 1980 pulses per session. This makes 9900 pulses/day, and in total 39600 pulses per treatment. |
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| sham | Sham Comparator | Built-in sham in the H1 Helmet (same device as active treatment) |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| accelerated deep rTMS | Device | A Magstim Rapid2 Plus1 Magnetic Stimulator connected to the Brainsway dTMS system with the H1-coil investigational device (Brainsway Ltd, Jerusalem, Israel). The coil is situated inside a helmet to achieve effective cooling during stimulation. A sham coil is also included in the same helmet. The sham coil mimics scalp sensations and the acoustic artifact of the active stimulation without inducing neuronal activation. |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] | Number of participants with treatment-related adverse events as assessed by questionning the patient on each stimulation day | During 1 week (and 2 weeks for patients who received sham in the first week) |
| clinical efficacy measured by change in the 17 item Hamilton Depression rating Scale score. | for a total score between 0 and 48, the higher the total score the more severe the depression. Used measures are : for response (reduction from baseline of ≥ 50% in the total score) and remission (total HAMD-17 score ≤ 7) | from screening until last visit (week 4) |
| clinical efficacy measured by change in the Beck-Inventory of Depression-II score | for a total score between 0 and 63, the higher the total score the more severe the depression. A score of ≤9 is the criterion for remission, and BDI-II score decrease of 50% from baseline is the criterion for treatment response. | from screening until last visit (week 4) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Chris Baeken, MD Phd | Universitair Ziekenhuis Brussel | Study Director |
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| ID | Term |
|---|---|
| D003863 | Depression |
| ID | Term |
|---|---|
| D001526 | Behavioral Symptoms |
| D001519 | Behavior |
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geriatric depressed patients after randomization at time T1 (on a Monday for MRI) will be divided into two groups to receive 20 sessions of real or sham adTMS treatment respectively. A given patient who first received active treatment will not receive sham, because of the carry-over effects; a patient who first received sham treatment now receives active adTMS in an open phase. This treatment will be spread over the four succeeding afternoons (5 daily sessions). In the second week, strictly the same treatment schedule will be followed but with the reverse order. A second brain imaging assessment will be performed exactly 1 week after the first week (time T2) and a third time scan exactly after 2 weeks (time T3).
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unblinding will be done after the first week, in this way subjects receiving sham will have the opportunity to receive active treatment in the second week
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