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TinnitusNCT00926237

Effect of rTMS on Resting State Brain Activity in Tinnitus

A study testing Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency and Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency in people with Tinnitus, run by University of Arkansas at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

One out of every five people experiences tinnitus (a ringing, buzzing, or roaring sound in the ear) ranging from mild to severe impairment. To date, there are no effective therapies available that have been shown to decrease tinnitus awareness. Read more about this study

Who is it for?
Ages 19 to 89 years
Conditions the study is for
Tinnitus
What is being tested?
Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency and Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
58 participants
Where
1 siteUnited States
Study dates
Jan 2009to Sep 2019
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 89 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of tinnitus established through a history and physical exam or review of records.
  • Subjects 19-89 years of age
  • Tinnitus present for at least 6 months and severe enough to seek medical attention
  • Subjects taking SSRI's (a class of anti-depressant medications)and benzodiazepines (a class of anti-anxiety medications) for depression or anxiety related to tinnitus must be stable on their current dose for at least 3 months and must not alter their dose or medication during their involvement with this study
  • Subjects must agree to avoid consuming alcohol within 72 hours of each rTMS session
  • Female subjects of childbearing potential must demonstrate a negative pregnancy test during their initial clinic visit and must agree to use effective contraception during their participation in this study
  • Subjects must sign an informed consent and agree to comply with study and follow-up procedures, including completion of all necessary questionnaires and testing, as well as, being video-recorded for safety purposes during rTMS sessions
  • Subjects must speak and comprehend English adequately to understand and complete any study-related instructions and questionnaires

Who cannot join

  • For rTMS
  • Subjects or any of their 1st-degree relatives must not have been diagnosed with epilepsy
  • Subjects must not have a history of seizure disorder or migraines
  • Subjects must not have any history of a brain aneurysm, stroke, previous cranial neurosurgery, acoustic neuroma, glomus tumor, active Menniere's Disease, profound hearing loss (greater than 90 dB at 4000 Hz), or any major neurological or psychiatric disorders (excluding depression or anxiety related to tinnitus)
  • Medications that lower seizure threshold or reduce cortical excitation (i.e., tricyclic antidepressants, bupropion or anticonvulsants)
  • Subjects must not have any history of a head injury that resulted in a loss of consciousness for more than 10 minutes
Show all 10Show fewer
  • Subjects must not be pregnant or refuse to utilize effective contraception during their participation in this study For MRI
  • Subjects must not have any metal implants or devices in the head or neck or a pacemaker.
  • Subjects must not have severe claustrophobia if they are to have an MRI.
  • Significant abnormalities must not be present on acquired or existing CT or MRI image of the head.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Arkansas for Medical Sciences

    Little Rock, Arkansas, 72205

Other trials in United States

About this study

One out of every five people experiences tinnitus (a ringing, buzzing, or roaring sound in the ear) ranging from mild to severe impairment. To date, there are no effective therapies available that have been shown to decrease tinnitus awareness. The purpose of this study is to evaluate a treatment option for tinnitus that uses a technique called Repetitive Transcranial Magnetic Stimulation (rTMS), which could prove to be an effective means of alleviating or reducing the symptoms of tinnitus.

Read the detailed description

Up to 60 subjects, including males and females ages 19-89 years old and of all races, and with tinnitus severe enough to seek medical attention, will be enrolled in this study. All participants must be evaluated or have documentation of being evaluated prior to beginning therapy with rTMS in order to confirm eligibility and to rule out any medically treatable causes of tinnitus. An MRI scan of the head may or may not be required, depending upon the results of this evaluation, in order to rule out specific middle ear pathologies.

This study will require participation in at least three weeks (4 weekdays per week) of rTMS sessions, including two active weeks and a sham (or placebo) week. There will be a three week washout period following each treatment week. At the completion of the three treatment weeks, subjects who have noticed an improvement in their tinnitus will have the option of participating in a maintenance rTMS program providing up to 8 additional weeks of treatment.

Conditions
Tinnitus
Being tested
Sham rTMS - Sham repetitive transcranial magnetic stimulation, Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency, Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency
Keywords
Tinnitus, Transcranial Magnetic Stimulation, TMS, rTMS
Medical subject headings
Tinnitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sham rTMS - Sham repetitive transcranial magnetic stimulationDevice

    Sham rTMS will be delivered using a commercially available sham coil and targeted to the same brain site in the temporal lobe and in a manner identical to that for active rTMS except that scalp electrodes are used to stimulate the temporalis muscle electrically during sham stimulation to replicate the feel of active TMS.

  • Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequencyDevice

    Active rTMS will be targeted either to the mid-superior temporal gyrus opposite the ear with loudest tinnitus or to the same region in the left hemisphere if no asymmetry in tinnitus is present. 1 Hz active rTMS will be delivered at 110% of motor threshold (MT) for a total of 1800 magnetic pulses per session, 4 sessions per week.

  • Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequencyDevice

    Active rTMS will be targeted either to the mid-superior temporal gyrus opposite the ear with loudest tinnitus or to the same region in the left hemisphere if no asymmetry in tinnitus is present. 10 Hz active rTMS will be delivered at 110% of motor threshold (MT) for a total of 1800 magnetic pulses per session, 4 sessions per week.

Study groups in NCT00926237
Study groupRoleWhat they receive
Sham followed by active 1Hz, then active 10Hz rTMSExperimentalSubjects assigned to this arm received sham rTMS followed by active rTMS at 1Hz and then active rTMS at 10 Hz. Each treatment consisted of a four-day trial with no less than 21 days separating each condition. Subjects receive sham stimulation first to prevent carry forward effects of the active treatment condition into the sham condition.
Receives: Device: Sham rTMS - Sham repetitive transcranial magnetic stimulation; Device: Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency; Device: Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency
Sham followed by active 10Hz and active 1Hz rTMSExperimentalSubjects assigned to this arm received sham rTMS followed by active rTMS at 10 Hz and then active rTMS at 1 Hz. Each treatment consisted of a four-day trial with no less than 21 days separating each condition. Subjects receive sham stimulation first to prevent carry forward effects of the active treatment condition into the sham condition.
Receives: Device: Sham rTMS - Sham repetitive transcranial magnetic stimulation; Device: Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency; Device: Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline on the Analogue Rating of Tinnitus Awareness.

    Change from baseline on the daily analogue rating of tinnitus awareness. Analogue ratings are a validated self report instrument assessing subjects awareness of tinnitus in daily life. Possible scores range from 0 (no tinnitus) to 100 (painfully loud tinnitus). Change equals the average rating for a given treatment week or washout period minus the average rating over three baseline assessments.

    Measured: from baseline to: day 6 (sham), day 25 (sham w/o), day 29 (1st active TX), day 50 (1st active w/o), day 50 (2nd active TX), day 76 (2nd active w/o).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jun 2009 (estimated)
  2. Study startJan 2009
  3. Primary completionSep 2019
  4. Study completionSep 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00926237
Sponsor's protocol ID
109033
Status last verified
Nov 2020
First submitted
19 Jun 2009
Last updated
20 Nov 2020
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Active 1 Hz rTMS - Active repetitive transcranial magnetic stimulation delivered at 1 Hz frequency and Active 10 Hz rTMS - active repetitive transcranial magnetic stimulation delivered at 10 Hz frequency in people with Tinnitus, run by University of Arkansas at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Nov 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline on the Analogue Rating of Tinnitus Awareness. (time frame: from baseline to: day 6 (sham), day 25 (sham w/o), day 29 (1st active TX), day 50 (1st active w/o), day 50 (2nd active TX), day 76 (2nd active w/o).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Nov 2020.

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