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Efficacy of the Erchonia Corporation THL™ for Providing Relief of Tinnitus Symptoms

Clinical Efficacy and Human Factors Validation Testing for Prescription Home Use of the Erchonia Corporation THL™ for Providing Relief of Tinnitus Symptoms

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05374421
Enrollment
23
Registered
2022-05-16
Start date
2022-05-10
Completion date
2022-12-09
Last updated
2024-03-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tinnitus

Brief summary

The purpose of this clinical study is to determine the effectiveness of the Erchonia® THL™, manufactured by Erchonia Corporation (the Company), for prescription home use in providing relief of tinnitus symptoms when used by individuals in their own homes.

Detailed description

Human Factors Validation Testing will initially be conducted to valuate a lay person's ability to understand and apply as applicable the information contained in the THL™ Use Device Proper Use Reference Guide, and device packaging and labeling materials to correctly, safely, and successfully activate and operate the THL™ to administer the treatment; and to identify any and all use difficulties, problems and errors, including those pertaining to critical tasks and close calls demonstrated by the lay person during device operation, and to subsequently mitigate each identified instance of use error through device and/or materials modification, and to subsequently evaluate the effectiveness of each modification, as applicable Phase Two will commence following the successful completion of Phase One. Phase Two comprises the performance of a double-blind, randomized, placebo-controlled, clinical study of the efficacy of the Erchonia® THL™, manufactured by Erchonia Corporation (the Sponsor), for prescription home use application in providing relief of tinnitus symptoms when used by individuals in their own homes.

Interventions

DEVICEErchonia® THL™

The Erchonia® THL™ is made up of (2) 405-nanometer violet laser diodes mounted in a portable handheld device. The diodes are positioned approximately 4 inches from the skin and applied in a continuous back and forth sweeping motion from the top of the ear down the side of the neck. The treatments will be self-administered by the subject at his or her's place of residence, once per day for 28 days. Each procedure administration lasts 5 minutes per ear, for a total of 10 minutes.

DEVICEPlacebo Laser

The Placebo Laser has the same appearance as the Erchonia® THL™ but does not emit any therapeutic light. The diodes are positioned approximately 4 inches from the skin and applied in a continuous back and forth sweeping motion from the top of the ear down the side of the neck. The treatments will be self-administered by the subject at his or her's place of residence, once per day for 28 days. Each procedure administration lasts 5 minutes per ear, for a total of 10 minutes.

Sponsors

Erchonia Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Bilateral tinnitus * Current diagnosis of subjective tinnitus * No hearing loss or sensorineural hearing loss only * 18 years of age or older * Able to read and write English * Constant tinnitus on-going over at least the past 6 months * Willing to abstain from other tinnitus-related treatments, except existing hearing aid use, throughout the study duration. * Tinnitus Functional Index (TFI) total score of 32 to 72 (Moderate to Big Problem) * Degree of hearing loss is less than 60 dB (Moderate or less)

Exclusion criteria

* Tympanosclerosis * Meniere's disease * Acoustic neuromas * Current and consistent use of ototoxic medications * Presbycusis * Thyroid disease * Skull fracture * Traumatic brain injury (TBI) * Depression * Syphilis * Retrocochlear tumors * Conductive hearing loss * Pregnant, think they might be pregnant, or breastfeeding. * Open wounds (sores, cuts, ulcers, etc) around ears or neck * Cancerous growths around ears or neck * Difficulty with hand dexterity sufficient to impact the ability to administer treatments with the laser such as from severe arthritis in the hands, Multiple Sclerosis, -Cerebral Palsy, Parkinson's Disease, Huntington's Disease, etc.

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline to Study Endpoint in the Tinnitus Functional Index (TFI)Baseline and 4 weeksThe Tinnitus Functional Index (TFI) has been highly recommended to be used in both clinical and research settings for tinnitus measurement (Meikle et al., 2011). The self-report questionnaire, consists of 25 items with a response option on an 11-point Likert scale from 0-10. The calculation of overall TFI score is as follows: (1) Sum all valid answers. (2) Divide by the number of questions for which the sum of the valid answers was based to yield the respondent's mean item score. (3) Multiply by 10 to attain the respondent's overall TFI score (0-100 range). Total TFI score can be categorized as Level of Tinnitus Severity as follows: 0 to 17: Not a problem,18 to 31: Small problem, 32 to 53: Moderate problem, 54 to 72: Big Problem, 73 to 100: Very big problem. A negative (-) change indicates the negative impact of tinnitus on the individual's everyday life has improved (lessened).

Countries

United States

Participant flow

Pre-assignment details

The study procedure started with attainment of subject consent followed by subject randomization into a procedure group. Succeeding procedure group assignment the investigator performed the study qualification evaluation to determine if the subject was eligible. The Protocol enrollment number includes all subjects that signed the consent form, while the number of subjects that Started reflects the total number of subjects that satisfied the qualification criteria

Participants by arm

ArmCount
Erchonia® THL™
The Erchonia® EVRL™ is made up of (2) 405-nanometer violet laser diodes mounted in a portable handheld device. Erchonia® THL™: The Erchonia® THL™ is made up of (2) 405-nanometer violet laser diodes mounted in a portable handheld device. The diodes are positioned approximately 4 inches from the skin and applied in a continuous back and forth sweeping motion from the top of the ear down the side of the neck. The treatments will be self-administered by the subject at his or her's place of residence, once per day for 28 days. Each procedure administration lasts 5 minutes per ear, for a total of 10 minutes.
8
Placebo Laser
The Placebo Laser has the same appearance as the Erchonia® THL™ but does not emit any therapeutic light. Placebo Laser: The Placebo Laser has the same appearance as the Erchonia® THL™ but does not emit any therapeutic light. The diodes are positioned approximately 4 inches from the skin and applied in a continuous back and forth sweeping motion from the top of the ear down the side of the neck. The treatments will be self-administered by the subject at his or her's place of residence, once per day for 28 days. Each procedure administration lasts 5 minutes per ear, for a total of 10 minutes.
7
Total15

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject34

Baseline characteristics

CharacteristicPlacebo LaserTotalErchonia® THL™
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants11 Participants6 Participants
Age, Categorical
Between 18 and 65 years
2 Participants4 Participants2 Participants
Age, Continuous55.6 years
STANDARD_DEVIATION 12.25
64.8 years
STANDARD_DEVIATION 12.27
70.4 years
STANDARD_DEVIATION 8.33
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
7 Participants15 Participants8 Participants
Region of Enrollment
United States
7 participants15 participants8 participants
Sex: Female, Male
Female
5 Participants11 Participants6 Participants
Sex: Female, Male
Male
2 Participants4 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 7
other
Total, other adverse events
0 / 80 / 7
serious
Total, serious adverse events
0 / 80 / 7

Outcome results

Primary

Mean Change From Baseline to Study Endpoint in the Tinnitus Functional Index (TFI)

The Tinnitus Functional Index (TFI) has been highly recommended to be used in both clinical and research settings for tinnitus measurement (Meikle et al., 2011). The self-report questionnaire, consists of 25 items with a response option on an 11-point Likert scale from 0-10. The calculation of overall TFI score is as follows: (1) Sum all valid answers. (2) Divide by the number of questions for which the sum of the valid answers was based to yield the respondent's mean item score. (3) Multiply by 10 to attain the respondent's overall TFI score (0-100 range). Total TFI score can be categorized as Level of Tinnitus Severity as follows: 0 to 17: Not a problem,18 to 31: Small problem, 32 to 53: Moderate problem, 54 to 72: Big Problem, 73 to 100: Very big problem. A negative (-) change indicates the negative impact of tinnitus on the individual's everyday life has improved (lessened).

Time frame: Baseline and 4 weeks

ArmMeasureValue (MEAN)Dispersion
Erchonia® THL™Mean Change From Baseline to Study Endpoint in the Tinnitus Functional Index (TFI)-8.96 score on a scaleStandard Deviation 15.53
Placebo LaserMean Change From Baseline to Study Endpoint in the Tinnitus Functional Index (TFI)-2.8 score on a scaleStandard Deviation 5.7

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026