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Br J Psychiatry. 2007 Nov;191:441-8.

Antidepressant effects of augmentative transcranial magnetic stimulation: randomised multicentre trial.

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  • 1Psychiatric University Hospital, University of Zürich, Lenggstrasse 31, Zürich, Switzerland. uwe.herwig@puk.zh.ch



Repetitive transcranial magnetic stimulation (rTMS) has been proposed as a new treatment option for depression. Previous studies were performed with low sample sizes in single centres and reported heterogeneous results.


To investigate the efficacy of rTMS as augmentative treatment in depression.


In a randomised, double-blind, sham-controlled multicentre trial 127 patients with moderate to severe depressive episodes were randomly assigned to real or sham stimulation for 3 weeks in addition to simultaneously initiated antidepressant medication.


We found no difference in the responder rates of the real and the sham treatment groups (31% in each) or in the decrease of the scores on the depression rating scales.


The data do not support previous reports from smaller samples indicating an augmenting or accelerating antidepressant effect of rTMS. Further exploration of the possible efficacy of other stimulation protocols or within selected sub-populations of patients is necessary.

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