Clinical trial NCT01480193: New Therapy for Patients With Severe Tinnitus
Official title: Preliminary Clinical Trial of an Integrative Therapy With Severe Tinnitus
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Tinnitus
Keywords: Tinnitus
Lead sponsor: Duke University
Sponsor class: OTHER
Collaborators: name: National Institutes of Health (NIH)
name: National Institute on Deafness and Other Communication Disorders (NIDCD)
First posted: 2011-11-28
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: This pilot trial will employ a randomized controlled design in a 3:1 allocation series to gain experience with the experimental intervention.
Primary purpose: OTHER

Brief summary: Tinnitus is a common problem for which there is no universally effective treatment. The best available estimates indicate that 10 - 15% of adults report having tinnitus symptoms, but only 20% of those who report tinnitus suffer from it and subsequently seek treatment. Only formally reported by the U.S. Department of Veterans Affairs (VA), the economic impact of tinnitus is thought to be substantial. The VA reported in 2004 that 289,159 veterans received a disability award for their tinnitus amounting to a total annual compensation amount of over $345.5 million. Individuals with persistent severe tinnitus are unable to habituate to the tinnitus sound that most likely originates in the central auditory system (CAS) in response to peripheral injury. In a widely referenced study, it has been hypothesized that lack of habituation is secondary to abnormal processing of sensory information. Specifically, processing by the limbic system and autonomic nervous system is apparently abnormal in patients with increased levels of cortical arousal and inadequate coping mechanisms. In otolaryngology and audiology clinics, 'sound-based and educational therapies' (SBE) are the focus of most current therapies, and utilize enhanced sound input to the CAS. While SBE treatments may well provide a starting point for tinnitus treatment, additional treatment options are necessary particularly for those with significant non-auditory aspects of tinnitus (e.g., anxiety, depression, interference with daily life) as well as for those who do not experience significant improvement with SBE. Furthermore, commonly used forms of SBE \[e.g.,Tinnitus Retraining Therapy (TRT)\] can require over a year to become effective and may not be used in patients with hearing that is too poor to be modified by sound input. Based on prevalence data from tinnitus sufferers who seek treatment and the known percentage who do not respond to commonly used therapies, we estimate that 1.2 million individuals are not able to benefit at all from current, widely used treatment strategies. A new strategy to augment those currently used could empower patients to exert control over their tinnitus symptoms without the use of medications, expensive devices such as the Neuromonics device, or extended programs such as TRT. An alternative strategy may be useful both for patients who are not candidates for SBE and for those who respond poorly. An Integrative Medicine approach provides a likely solution. To date, there has been no systematic study of the benefits of an Integrative Medicine approach for severe tinnitus, particularly for non-auditory aspects of tinnitus symptoms. The goal of the proposed pilot study is to assess the feasibility of studying an integrative medicine approach in a subsequent large clinical trial which targets treatment of the non-auditory aspects of tinnitus suffering. Specifically, we wish to gain experience using the intervention in a randomized clinical trial when adding it to current commonly applied SBE therapies, compared with SBE alone. We also plan to assess patient satisfaction with the intervention, and obtain preliminary clinical efficacy data. If evaluating this intervention in an RCT appears feasible, this approach will be applied to a larger trial patient population in future studies to hypothesis test its efficacy and the durability of the potential effect. Our eventual goal is to develop a streamlined approach that individualizes tinnitus treatment based on symptoms and patient characteristics, and that can be widely applied in general medical practice.


Eligibility criteria: Inclusion Criteria:

1. Debilitating tinnitus, defined by score on the Tinnitus Hearing Inventory \> 38;
2. Participation not ruled out by baseline medical exam (see below);
3. Age 18 or older (no upper age limit);
4. No acute systemic illness requiring frequent treatment such as chemotherapy, dialysis, and no such treatment in the past 3 months,
5. Able to speak, read and write in English,
6. Willingness to participate fully in either treatment arm when randomized,
7. Not currently enrolled in another clinical trial or taking an experimental
8. No previous experience with either Sound Based and Educational (SBE) therapies as applied in this study or an Integrated Medicine approach specifically for the treatment of tinnitus symptoms; and
9. Adequate hearing to allow participation in the SBE treatment program.

Primary outcomes:
measure: Feasibility of implementing the integrative medicine intervention in an RCT
timeFrame: baseline, 6 months post-baseline
Secondary outcomes:
measure: patient satisfaction
timeFrame: 6 months post-baseline
Other outcomes:
measure: Tinnitus-related dysfunction
timeFrame: baseline, 6 months post-baseline, 9 mos post baseline
Locations:
city: Durham
country: United States
facility: Duke University Medical Center
state: North Carolina
Study officials:
affiliation: Duke University
name: Debara Tucci, MD
role: PRINCIPAL_INVESTIGATOR
References: