NCT01663324

rTMS for the Treatment of Chronic Tinnitus: Optimization by Simulation of the Cortical Tinnitus Network

Repetitive Transcranial Magnetic Stimulation for the Treatment of Chronic Tinnitus: Optimization by Stimulation of the Cortical Tinnitus Network

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (actual)
• Sponsor: University of Regensburg · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Accepted

Summary

Transcranial Magnetic Stimulation is used to modulate both the auditory and non-auditory neural pathways contributing to the perception of phantom sounds.

Detailed description

Tinnitus is the phantom auditory perception of sound in the absence of an external or internal acoustic stimulus. It is a frequent problem which can interfere significantly with the ability to lead a normal life. Treatment remains difficult. Most available therapies focus on habituation rather than treating the cause. Tinnitus has been shown to be associated with functional reorganization of auditory neural pathways and tonotopic maps in the central auditory system. Consequently, low-frequency Repetitive Transcranial Magnetic Stimulation (rTMS) applied to the temporoparietal areas has been investigated for the treatment of tinnitus. Additionally, there is growing evidence that a neural network of both auditory and non-auditory cortical areas is involved in the pathophysiology of chronic subjective tinnitus. Targeting several core regions of this network by rTMS might constitute a promising strategy to enhance treatment effects. A new multisite treatment protocol which is supposed to have an effect on both auditory and non-auditory cortical areas will be examined with regard to feasibility, safety and clinical efficacy in patients suffering from chronic tinnitus in a controlled pilot trial.

Conditions

• Chronic Tinnitus

Interventions

Type	Name	Description
DEVICE	rTMS intervention 1	Low frequency rTMS (Magventure Mag Pro Option) applied over left temporoparietal cortex: 3000 stimuli of 1Hz rTMS (110% motor threshold); 1 minute break after 1000 and 2000 stimuli. Arms: single site rTMS
DEVICE	rTMS intervention 2	Repetitive transcranial magnetic stimulation (Magventure Mag Pro Option): 1000 stimuli of 20 Hz rTMS over the left DLPFC (110% motor threshold) followed by 1000 stimuli of 1 Hz rTMS over the left temporoparietal cortex (110% motor threshold) followed by 1000 stimuli of 1 Hz rTMS over right temporoparietal cortex (110% motor threshold). Arms: multisite rTMS

Timeline

• Start date: 2012-07-01
• Primary completion: 2014-08-01
• Completion: 2015-01-01
• First posted: 2012-08-13
• Last updated: 2016-05-18

Locations

1 site across 1 country: Germany