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Repetitive transcranial magnetic stimulation (rTMS) is a new therapeutic tool used in psychiatry. Non-invasive, well tolerated and requiring no premedication, it is performed on an outpatient basis. The principle of this technique is to stimulate the cerebral cortex from an electromagnetic coil placed on the scalp. Unlike electroconvulsive therapy, rTMS induces an electrical current on a well-defined region of the cerebral cortex.
In psychiatry, this technique is mainly considered in the treatment of depressive disorders resistant to antidepressant medication. The brain target, obtained from brain imaging data in depressed patients, is the dorsolateral prefrontal cortex (DLPFC). The Food and Drug Administration (FDA) has recognized the interest of rTMS for treating depressive disorders (October 7, 2008).
However, some stimulation parameters still need to be optimized before rTMS can be considered a therapeutic method in its own right and used routinely. Indeed, its effectiveness over time has not yet been evaluated, and rTMS has shown a lack of reproducibility between subjects [Foucher, 2007]. Finally, the therapeutic results of rTMS are very modest whatever the study [Daskalakis, 2008]. Additional studies are therefore needed to optimize stimulation parameters.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| BA9/BA46 | Experimental |
| |
| BA46/BA9 | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| rTMS BA9/BA46 | Device | 10 sessions of low-frequency repeated transcranial magnetic stimulation over two weeks on cortical area 9, then 4 weeks wash-out, then 10 sessions of low-frequency repeated transcranial magnetic stimulation repeated low frequency over two weeks on cortical area 46. |
| Measure | Description | Time Frame |
|---|---|---|
| The remission rate | Compare the remission rates (decrease < 50% of the HDRS score / initial score) during neuronavigated stimulations on BA 9 and BA 46 compared to the average rate obtained during manual stimulation. | Through study completion, an average of 11 weeks. |
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Inclusion Criteria:
Patients with resistant depressive disorders (Hamilton-17-item scale > 22, failure ≥ 2 antidepressants) with at least one of the following criteria :
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Chu Dijon Bourogne | Dijon | 21000 | France |
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|
| rTMS BA46/BA9 | Device | 10 sessions of low-frequency repeated transcranial magnetic stimulation over two weeks on cortical area 46, then 4 weeks wash-out, then 10 sessions of low-frequency repeated transcranial magnetic stimulation repeated low frequency over two weeks on cortical area 9. |
|
| brain MRI | Radiation | T1 weighted full-head high-resolution MRI with 1 mm seam cuts and sagittal orientation. |
|
| Medical evaluation | Other | complete evaluation with 6 scales (HDRS, MADRS, Beck, CGI, COVI, UKU) |
|
| Psychological assessment | Other | Subjective Life Profile Assessment (SLPA) and Helping Alliance Assessment |
|
| ID | Term |
|---|---|
| D000070536 | Independent Medical Evaluation |
| ID | Term |
|---|---|
| D017531 | Health Care Evaluation Mechanisms |
| D011787 | Quality of Health Care |
| D017530 | Health Care Quality, Access, and Evaluation |
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