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NCT01184248 · ClinicalTrials.gov registry record · NA
The Effect of Sound Stimulation on Pure-tone Hearing Threshold
A NA study of Sensorineural Hearing Loss, sponsored by Earlogic Korea.
- Completed
- Registry status
- NA
- Development phase
- 30
- Enrollment target
- 1
- Study location
NCT01184248: Completed NA study of Sensorineural Hearing Loss, sponsored by Earlogic Korea.
NCT01184248 is a NA study of Sensorineural Hearing Loss that has completed, run by Earlogic Korea. The registered enrollment target is 30 participants, below the 129-participant average among 13 other Sensorineural Hearing Loss trials with a reported enrollment target (77% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01184248, a NA study of Sensorineural Hearing Loss, has completed, sponsored by Earlogic Korea.
- COMPLETED
- Registry status
- NA
- Development phase
- 30 participants
- Enrollment target
- 1
- Study location
Study Summary
The purpose of this study is to investigate if sound stimulation could improve pure-tone hearing threshold. In the late 1990s, researchers discovered that acoustic stimuli slow progressive sensorineural hearing loss and exposure to a moderately augmented acoustic environment can delay the loss of auditory function. In addition, prolonged exposure to an augmented acoustic environment could improve age-related auditory changes. These ameliorative effects were shown in several types of mouse strains, as long as the acoustic environment was provided prior to the occurrence of severe hearing loss. In addition to delaying progressive hearing loss, acoustic stimuli could also protect hearing ability against damage by traumatic noise. In particular, a method called forward sound conditioning (i.e., prior exposure to moderate levels of sound) has been shown to reduce noise-induced hearing impairment in a number of mammalian species, including humans. Interestingly, recent report has suggested that low-level sound conditioning also reduces free radical-induced damage to hair cells, increases antioxidant enzyme activity, and reduces Cox-2 expression in cochlea, and can enhance cochlear sensitivity. Specifically, increased cochlear sensitivity was observed when distortion product otoacoustic emissions (DPOAEs) and compound action potentials (CAPs) were measured. In addition to forward sound conditioning, backward sound conditioning (i.e., the use of acoustic stimuli after exposure to a traumatic noise) has been shown to protect hearing ability against acoustic trauma and to prevent the cortical map reorganization induced by traumatic noise. Based on the results of animal studies, the investigators conducted a human study in 2007 and observed that sound stimulation could improve hearing ability. On average, the pure-tone hearing threshold decreased by 8.91 dB after sound stimulation for 2 weeks. In that study, however, the investigators observed only the hearing threshold c
Conditions Studied
Interventions
- BEHAVIORAL Sound stimulation
Study Locations (1)
California
- Earlogic Corporation - Los Angeles
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 30 participants |
| Start Date | 2010-05 |
| Est. Completion | 2011-01 |
| Phase | NA |
What the finished NCT01184248 record still lists
NCT01184248 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 30 participants, a relatively small participant target, below the 129-participant average among 13 other Sensorineural Hearing Loss trials with a reported enrollment target (77% lower).
The record links to 1 condition, with Sensorineural Hearing Loss appearing as the primary indexed condition, and to 1 intervention - of which Sound stimulation is the first listed.
NCT01184248 reports a single indexed study location in California.
Frequently Asked Questions
What is clinical trial NCT01184248 about?
NCT01184248 is a clinical study titled "The Effect of Sound Stimulation on Pure-tone Hearing Threshold". The purpose of this study is to investigate if sound stimulation could improve pure-tone hearing threshold. In the late 1990s, researchers discovered that acoustic stimuli slow progressive sensorineural hearing loss and exposure to a moderately augmented acoustic environment can delay the loss of a...
What is the current status of trial NCT01184248?
This trial is currently completed. It is a NA study. The enrollment target is 30 participants. The study started on 2010-05. Estimated completion is 2011-01.
What conditions does trial NCT01184248 study?
This clinical trial studies the following conditions: Sensorineural Hearing Loss.
What interventions are being tested in trial NCT01184248?
The interventions under investigation include: Sound stimulation (BEHAVIORAL).
Who is sponsoring clinical trial NCT01184248?
This trial is sponsored by Earlogic Korea, which has 1 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT01184248 being conducted?
This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
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Where NCT01184248's enrollment target sits among peer trials
30 10th of 13 higher than 4 of 13 other Sensorineural Hearing Loss trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Sensorineural Hearing Loss trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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