- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03759834
Cochlear Promontory Stimulation for Treatment of Tinnitus
Cochlear Promontory Stimulation for Treatment of Tinnitus: Towards Developing an Implantable Device
Tinnitus is the perception of sound when no external noise is present. The Center for Disease Control (CDC) estimates over 50 million - nearly 15% of the general public -experience some form of tinnitus. Roughly 20 million people struggle with burdensome chronic tinnitus, with 2 million experiencing extreme and debilitating symptoms.
The 2014 Clinical Practice Guideline on tinnitus from the American Academy of Otolaryngology - Head and Neck Surgery summarized the existing state of tinnitus management by stating "A cure for primary tinnitus does not yet exist, and despite claims to the contrary, no method has been proven to provide long-term suppression of tinnitus."
The purpose of this study is to look at the safety and efficacy of cochlear promontory stimulation in the short term relief of tinnitus. The secondary goal of the study is to determine the optimum region(s) of the cochlear promontory in planning for an implantable electrical device for long term tinnitus suppression.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Minnesota
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Rochester, Minnesota, United States, 55905
- Mayo Clinic in Rochester
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Normal to moderate sensorineural hearing loss (based on pure tone audiometry (PTA) of 500, 1000 and 2000 Hz) and a word recognition score greater than 75%
- Asymmetric subjective tonal tinnitus
Tinnitus that is disruptive
- Determined by THI score (in the severe range i.e. >56/100)
- TFI (in the severe range i.e. >52/100)
- VAS (> 5/10 )
- Tinnitus that is intractable, and has not been ameliorated by conventional measures such as a hearing aid or masking
- Normal contrast-enhanced MRI of the head
Exclusion Criteria:
- Tinnitus present less than 6 months or longer than 3 years
- History of brain or major ear surgery
- Prior major head trauma
History of depression or anxiety
Determined by screening using the GAD 7, PHQ8, and HAI-S
- GAD7 > 9 (indicates clinically significant anxiety)
- PHQ > 9 (indicates clinically significant depression)
- HAI-S > 25 (hypochondriacal level illness anxiety)
- Inability to assess, continue or complete trial
- Currently on antidepressants, anxiolytics or antipsychotics
- Active use of other tinnitus treatments
- MRI Incompatible Devices
- Known pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Testing Arm
There will only be one arm.
The patient and investigator will initially be blinded to the "on-off" status of the electrode.
The patient will thus serve as an internal control for testing.
Once device integrity and possible benefit is confirmed, the patients will undergo non-tactile electrical stimulation to the bone of the inner ear (cochlear promontory) for short term relief of tinnitus via Cochlear promontory stimulation.
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Promontory stimulation is an established otologic procedure that was initially developed as a diagnostic tool to assess patient candidacy for cochlear implantation.
Promontory stimulation is most commonly performed in the outpatient setting on an awake patient by placing a single insulated probe through a topically anesthetized tympanic membrane and applying monopolar current for several seconds to minutes.
The initial session of promontory stimulation will define optimal stimulation parameters (i.e., location, current level, pulse-width, phase polarity), where maximal tinnitus suppression occurs with minimal or no auditory percept.
Additional stimulation testing visits will confirm these findings.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Short Term Relief of Tinnitus as Measured by the Tinnitus Handicap Inventory
Time Frame: 7 days after electrical stimulation procedure
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The Tinnitus Handicap Inventory (THI) has 25 questions with possible answers of Yes (4 points), Sometimes (2 points), and No (0 points).
Scores categories are (1-16: Slight or no handicap - Grade 1), (18-36: Mild handicap - Grade 2), (38-56: Moderate handicap - Grade 3), (58-76: Severe handicap - Grade 4), (78-100: Catastrophic handicap - Grade 5).
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7 days after electrical stimulation procedure
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Optimal Location of Tinnitus Relief
Time Frame: Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Location on the cochlear promontory where highest perceived benefit from electrical stimulation
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Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Auditory Feedback
Time Frame: Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Perception of hearing the electrical stimulus (if at all)
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Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Tactile Feedback
Time Frame: Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Perception of hearing the electrical stimulus (if at all)
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Immediately after electrical stimulation procedure (approximately 1 min after stimulation)
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Short Term Relief of Tinnitus as Measured by the Tinnitus Functional Index
Time Frame: 7 days after electrical stimulation procedure
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The Tinnitus Functional Index (TFI) contains eight subscales (domains), of which seven contain 3 items and one contains 4. The possible responses for each item range from 0 (did not interfere) to 10 (completely interfered).
The total score is transformed to a scale ranging from 0 (no interference) to 100 (completely interfered with activities).
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7 days after electrical stimulation procedure
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Short Term Relief of Tinnitus as Measured by the Visual Analog Scale
Time Frame: 7 days after electrical stimulation procedure
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The Visual Analog Scale (VAS) for Numeric Pain Distress was used for this outcome.
The VAS has pre-set marks between the extremes of 0 (no pain) and 10 (unbearable pain).
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7 days after electrical stimulation procedure
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Matthew L Carlson, Mayo Clinic
Publications and helpful links
General Publications
- Zeman F, Koller M, Figueiredo R, Aazevedo A, Rates M, Coelho C, Kleinjung T, de Ridder D, Langguth B, Landgrebe M. Tinnitus handicap inventory for evaluating treatment effects: which changes are clinically relevant? Otolaryngol Head Neck Surg. 2011 Aug;145(2):282-7. doi: 10.1177/0194599811403882.
- Tunkel DE, Bauer CA, Sun GH, Rosenfeld RM, Chandrasekhar SS, Cunningham ER Jr, Archer SM, Blakley BW, Carter JM, Granieri EC, Henry JA, Hollingsworth D, Khan FA, Mitchell S, Monfared A, Newman CW, Omole FS, Phillips CD, Robinson SK, Taw MB, Tyler RS, Waguespack R, Whamond EJ. Clinical practice guideline: tinnitus. Otolaryngol Head Neck Surg. 2014 Oct;151(2 Suppl):S1-S40. doi: 10.1177/0194599814545325.
- Tsai BS, Sweetow RW, Cheung SW. Audiometric asymmetry and tinnitus laterality. Laryngoscope. 2012 May;122(5):1148-53. doi: 10.1002/lary.23242. Epub 2012 Mar 23.
- Perez R, Shaul C, Vardi M, Muhanna N, Kileny PR, Sichel JY. Multiple electrostimulation treatments to the promontory for tinnitus. Otol Neurotol. 2015 Feb;36(2):366-72. doi: 10.1097/MAO.0000000000000309.
- Rubinstein JT, Tyler RS, Johnson A, Brown CJ. Electrical suppression of tinnitus with high-rate pulse trains. Otol Neurotol. 2003 May;24(3):478-85. doi: 10.1097/00129492-200305000-00021.
- Watanabe K, Okawara D, Baba S, Yagi T. Electrocochleographic analysis of the suppression of tinnitus by electrical promontory stimulation. Audiology. 1997 May-Jun;36(3):147-54. doi: 10.3109/00206099709071968.
- Steenerson RL, Cronin GW. Treatment of tinnitus with electrical stimulation. Otolaryngol Head Neck Surg. 1999 Nov;121(5):511-3. doi: 10.1016/S0194-5998(99)70048-3.
- Mertens G, De Bodt M, Van de Heyning P. Cochlear implantation as a long-term treatment for ipsilateral incapacitating tinnitus in subjects with unilateral hearing loss up to 10 years. Hear Res. 2016 Jan;331:1-6. doi: 10.1016/j.heares.2015.09.016. Epub 2015 Oct 24.
- Tyler RS. Patient preferences and willingness to pay for tinnitus treatments. J Am Acad Audiol. 2012 Feb;23(2):115-25. doi: 10.3766/jaaa.23.2.6.
- Arts RA, George EL, Stokroos RJ, Vermeire K. Review: cochlear implants as a treatment of tinnitus in single-sided deafness. Curr Opin Otolaryngol Head Neck Surg. 2012 Oct;20(5):398-403. doi: 10.1097/MOO.0b013e3283577b66.
- Arts RA, George EL, Chenault MN, Stokroos RJ. Optimizing intracochlear electrical stimulation to suppress tinnitus. Ear Hear. 2015 Jan;36(1):125-35. doi: 10.1097/AUD.0000000000000090.
- Topf MC, Hsu DW, Adams DR, Zhan T, Pelosi S, Willcox TO, McGettigan B, Fisher KW. Rate of tympanic membrane perforation after intratympanic steroid injection. Am J Otolaryngol. 2017 Jan-Feb;38(1):21-25. doi: 10.1016/j.amjoto.2016.09.004. Epub 2016 Sep 28.
- Marinelli JP, Anzalone CL, Prummer CM, Poling GL, Staab JP, Tombers NM, Lohse CM, Carlson ML. Electrical stimulation of the cochlea for treatment of chronic disabling tinnitus: an open-label trial towards the development of an implantable device. J Transl Med. 2022 Jan 29;20(1):56. doi: 10.1186/s12967-022-03271-4.
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17-004832
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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