Repetitive Transcranial Magnetic Stimulation for Chronic Subjective

Status Completed

Clinical Trial Summary

Therapy of subjective chronic primary tinnitus could be challenging. Repetitive transcranial magnetic stimulation (rTMS) is currently being tested for suppressing the symptoms. However, effect of stimulation remains controversial. The aim was to uncover real effect of rTMS stimulation for tinnitus treatment. There will be three groups, stimulation group, sham stimulation group and controlled group with medicament treatment. The investigators assume that combination of rTMS stimulation of dorsolateral prefrontal cortex and primary auditory cortex at both sides will be more efficient. The investigators considered a 10% improvement in the tinnitus questionnaire score and in the tinnitus masking to be clinically relevant.

Clinical Trial Description

Adult patients suffering from chronic subjective non-pulsatile primary unilateral or bilateral tinnitus for at least 6 months will be included in the study. Patients will be randomly assigned using a random number generation randomization method into rTMS stimulation group (group 1), sham stimulation group (group 2) and group with medicament therapy only (group 3). Dorsolateral prefrontal cortex (frequency 25 Hz; 300 pulses; 80% resting motor threshold=RMT) and primary auditory cortex on both sides (1 Hz; 1000 pulses; 110% RMT) will be stimulated in patients in rTMS stimulation group for 5 consecutive days. Both the patients and outcome assessor were blinded to the intervention group in which the patients (rTMS and shame stimulation group) belonged to. Medicament therapy in group 3 will consist of ginkgo biloba extract EGb 761 once a day for 6 months. There will be no medicament therapy for tinnitus in group 1 and 2. Tinnitus reaction questionnaire (TRQ), tinnitus handicap questionnaire (THQ), tinnitus handicap inventory (THI), Beck Depression Inventory (BDI), pure-tone audiometry with Fowler scoring of hearing loss and tinnitus analysis will be used for evaluation of tinnitus in all patients. Data will be recorded on the day patient is included in the study, during follow-up after 1 month and 6 months. Descriptive statistics, such as the arithmetic mean, standard deviation, and absolute and relative frequency tables, will be used for data processing. The Pearson's chi-squared test, Fisher's exact test, Kruskal-Wallis test and analysis of variance will be used for comparison. The statistical tests will be assessed using a significance level of 5%. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03425045
Study type	Interventional
Source	University Hospital Ostrava
Contact
Status	Completed
Phase	N/A
Start date	March 1, 2015
Completion date	March 31, 2018

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Repetitive Transcranial Magnetic Stimulation for Chronic Subjective Tinnitus

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms