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NCT01820416 · ClinicalTrials.gov registry record · NA
The Effect of Low-Level Laser Stimulation on Hearing Thresholds
A NA study, sponsored by University of Iowa.
- Terminated
- Registry status
- NA
- Development phase
- 35
- Enrollment target
NCT01820416: Clinical Trial NA study, sponsored by University of Iowa.
NCT01820416 is a NA study that was terminated before completion, run by University of Iowa. The registered enrollment target is 35 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01820416, a NA study, was terminated before completion, sponsored by University of Iowa.
- TERMINATED
- Registry status
- NA
- Development phase
- 35 participants
- Enrollment target
Study Summary
The purpose of this study is to determine whether low-level laser therapy can improve hearing thresholds in individuals with hearing loss. Subjects will be randomly assigned to a treatment, placebo, or control group. The treatment group will be given a three treatment of low-level laser therapy, which consists of shining low-level lasers beams onto the ear and head. The laser beams are cool to the touch, and do not cause discomfort. Each laser treatment will last approximately 4 minutes. Three treatments will be applied three times within the course of one week. Hearing tests will be administered immediately before treatment, immediately after treatment, and six weeks after treatment. Results will be analyzed to determine the effect of the laser treatment on hearing.
Primary Outcome
Hearing status, as assessed by the Connected Sentence Test (CST). Difference scores (post-test - pretest) are reported. The CST approximates everyday conversation. Scoring is based on the number of correctly repeated key words. Higher numbers indicate better scores. The minimum score is 0 (0%) and the maximum is 100 (100%). When comparing test-retest scores for an individual, Cox et al. (1988) suggest that changes of 15% or more (based on 100 key words) are indicative of significant changes. We
Interventions
- RADIATION Low-level Laser Therapy
- OTHER Placebo Comparator: Disabled Laser
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 35 participants |
| Start Date | 2009-09 |
| Est. Completion | 2009-12 |
| Phase | NA |
Why NCT01820416 stopped before completion
NCT01820416 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 35 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 2 interventions - of which Low-level Laser Therapy is the first listed.
NCT01820416 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01820416 about?
NCT01820416 is a clinical study titled "The Effect of Low-Level Laser Stimulation on Hearing Thresholds". The purpose of this study is to determine whether low-level laser therapy can improve hearing thresholds in individuals with hearing loss. Subjects will be randomly assigned to a treatment, placebo, or control group. The treatment group will be given a three treatment of low-level laser therapy, whi...
What is the current status of trial NCT01820416?
This trial is currently terminated. It is a NA study. The enrollment target is 35 participants. The study started on 2009-09. Estimated completion is 2009-12.
What interventions are being tested in trial NCT01820416?
The interventions under investigation include: Low-level Laser Therapy (RADIATION), Placebo Comparator: Disabled Laser (OTHER).
Who is sponsoring clinical trial NCT01820416?
This trial is sponsored by University of Iowa, which has 228 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01820416's enrollment target sits among peer trials
35 1564th of 2000 higher than 431 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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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