NCT06799169

Brief Summary

Tinnitus represents one of the most common and distressing otologic problems, and it causes various somatic and psychological disorders that interfere with the quality of life. Despite too many research projects on finding the mechanism of tinnitus, its pathophysiology remains poorly understood. It is well understood that many factors, such as poor education, lower income, or occupational, and recreational activity associated with high noise exposure, influence the prevalence and risk of tinnitus. Although the economic and emotional impact of tinnitus is large, there is currently no FDA-approved medication to treat this condition. However, there are pharmacological options to address the stress, anxiety, and depression that are caused by tinnitus. In this project, the investigators intend to use medications for patients with acute tinnitus to decrease the impact of tinnitus in their daily lives and activities. There are some studies on medications treating tinnitus; however, there are few randomized clinical trials to prove the efficacy of the treatment. The frequency and loudness of tinnitus will be measured before and after the course. Functional MRI of the brain will be obtained to view any changes that may occur before and after the treatment.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for phase_4

Timeline
7mo left

Started Jun 2025

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress62%
Jun 2025Dec 2026

First Submitted

Initial submission to the registry

August 29, 2024

Completed
5 months until next milestone

First Posted

Study publicly available on registry

January 29, 2025

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2025

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

October 10, 2025

Status Verified

August 1, 2025

Enrollment Period

1.5 years

First QC Date

August 29, 2024

Last Update Submit

October 8, 2025

Conditions

Keywords

TinnitusAcute tinnitusAtypical migraineringing in ears

Outcome Measures

Primary Outcomes (1)

  • Tinnitus Functional Index

    The primary outcome endpoint is a Tinnitus Functional Index (TFI) score which comprehensively evaluates the negative impact of tinnitus across 8 domains each focusing on specific dimensions: Intrusive, Sense of control, Cognitive, Sleep, Auditory, Relaxation, Quality of life, and Emotional. The overall score ranges from 0 to 100. Changes 13 points in TFI are the Minimal Clinically Important Difference (MCID). Subjective improvement from baseline in tinnitus symptoms as measured by Tinnitus Functional Index (TFI). The TFI is scored from 0% to 100%, with higher scores indicating a more negative impact of tinnitus.

    8 weeks

Secondary Outcomes (6)

  • Tinnitus Functional Index (TFI)

    8 weeks

  • Perceived Stress Scale (PSS)

    8 weeks

  • Patient Health Questionnaire (PHQ-9)

    8 weeks

  • Pittsburgh Sleep Quality Index (PSQI)

    8 weeks

  • Generalized Anxiety Disorder (GAD-7)

    8 weeks

  • +1 more secondary outcomes

Study Arms (2)

Group N-T

ACTIVE COMPARATOR

Nortriptyline (starting dose 7.5 mg) plus Topiramate (starting dose 10 mg) with appropriate dosage increase as necessary. The reported symptoms will dictate dosage adjustments. If symptoms do not improve, patients will be advised to increase their dosage by adding one additional pill, which equals an increase of nortriptyline by 7.5 mg and topiramate by 10 mg for one week until the next phone check-in. This process will continue until the patient reaches a maximum of 60mg for nortriptyline plus 80mg for topiramate for the duration of the 8 weeks (a total of 8 pills of each combination).

Drug: NortriptylineDrug: Topiramate

Group V-P

ACTIVE COMPARATOR

Verapamil (starting dose 30 mg) plus Paroxetine (starting dose 4 mg) with appropriate dosage increase as necessary. The reported symptoms will dictate dosage adjustments. If symptoms do not improve, patients will be advised to increase their dosage by adding one additional pill, which equals an increase of verapamil by 30 mg and paroxetine by 4 mg, for one week until the next phone check-in. This process will continue until the patient reaches a maximum of 240mg of verapamil plus 32mg of paroxetine for the duration of the 8 weeks (a total of 8 pills of each combination).

Drug: ParoxetineDrug: Verapamil

Interventions

Nortriptyline (7.5 mg) plus Topiramate (10 mg) taken by mouth daily with appropriate dosage increase as necessary

Also known as: Pamelor
Group N-T

Nortriptyline (7.5 mg) plus Topiramate (10 mg) taken by mouth daily with appropriate dosage increase as necessary

Also known as: Topamax
Group N-T

Verapamil (30 mg) plus Paroxetine (4 mg) taken by mouth daily with appropriate dosage increase as necessary

Also known as: Paxil
Group V-P

Verapamil (30 mg) plus Paroxetine (4 mg) taken by mouth daily with appropriate dosage increase as necessary

Also known as: Calan SR
Group V-P

Eligibility Criteria

Age25 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with mild to moderate tinnitus.
  • Male or female between the ages of 25 to 85 years.
  • Subjects must be compliant with the medication and attend study visits.
  • Must be able to read and write in the English language to provide consent.

You may not qualify if:

  • Subjects with a history of an adverse reaction to medication being prescribed.
  • Subjects suffering from a medical condition or have a history that may be concerning to the investigator's clinical opinion.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, Irvine Medical Center ENT Clinic (Pavilion 2)

Orange, California, 92868, United States

Location

MeSH Terms

Conditions

TinnitusMigraine without Aura

Interventions

NortriptylineTopiramateParoxetineVerapamil

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsMigraine DisordersHeadache Disorders, PrimaryHeadache DisordersBrain DiseasesCentral Nervous System Diseases

Intervention Hierarchy (Ancestors)

DibenzocycloheptenesBenzocycloheptenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic CompoundsFructoseHexosesMonosaccharidesSugarsCarbohydratesKetosesPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPhenethylaminesEthylaminesAmines

Study Officials

  • Mehdi Abouzari, MD, PhD

    University of California, Irvine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
The principal investigator, provider, lead researchers and the subjects will be masked throughout the duration of the clinical trial. Solely the clinical coordinator will be unmasked during the study.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This study is an 8-week, randomized, double-blind, single-center clinical trial, consisting of two arms: Group N-T, a nortriptyline (7.5mg) plus topiramate (10mg) group and group V-P, a verapamil (30mg) plus paroxetine (4mg) group. Both groups may involve dose escalation from the initial dosage during the study.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, Associate Professor

Study Record Dates

First Submitted

August 29, 2024

First Posted

January 29, 2025

Study Start

June 1, 2025

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

October 10, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Final study results will not be shared with subjects. Upon the final appointment patient will be told of which medication they have been given. It will not be necessary to share the final results since the patient will know if their symptoms have improved- no lab value can be given to measure this. Since this study will be listed on clinicaltrials.gov, the overall study results will be available through that platform after the completion of the study.

Locations