Study type: Therapeutical study (experimental study)

Transcranial magnetic stimulation accelerates the antidepressant effect of amitriptyline in severe depression: a double-blind placebo-controlled study med. app.

Published in: Biol Psychiatry 2005; 57 (2): 162-166

Aim of study (acc. to author)

To study whether repetitive transcranial magnetic stimulation (rTMS) accelerates the onset of action and increases the therapeutic effects of amitriptyline in severe depressed patients.

Background/further details

Transcranial magnetic stimulation is a non-invasive method to stimulate the cortex, and the treatment of depression is one of its potential therapeutic applications.
The study comprised 46 outpatients with the diagnosis of non-psychotic major depressive disorder. All patients were concomitantly taking amitriptyline (mean dose 110 mg/d).

Endpoint

Exposure

Exposure Parameters
Exposure 1: 5 Hz
Modulation type: pulsed
Exposure duration: intermittent, 25 trains per day, each train lasting 10 s with 20 s intervals - 5 sessions/week for 4 weeks
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Exposure 1

Main characteristics
Frequency 5 Hz
Type
Waveform
Exposure duration intermittent, 25 trains per day, each train lasting 10 s with 20 s intervals - 5 sessions/week for 4 weeks
Additional info Transcranial magnetic stimulation (TMS)
Modulation
Modulation type pulsed
Additional info

25 trains/day equivalent to 1250 pulses/day were applied

Exposure setup
Exposure source
Setup stimulation was carried out over the left dorsolateral prefrontal cortex
Sham exposure A sham exposure was conducted.
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

The study provides evidence that repetitive transcranial magnetic stimulation (rTMS) at 5 Hz is effective in accelerating and augmenting the therapeutic response to amitriptyline and it is safe and well-tolerated procedure.

Study character:

Study funded by

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