Clinical Research Directory

Hearing Health Equity Through Accessible Research and Solutions for Korean Americans

The objective of this study is to test the effect of a community-delivered, affordable, and accessible hearing care intervention on improving communication function and health-related quality of life among older Korean Americans (KA) and the older Korean American's care partners that integrates a low-cost over-the-counter amplification device and hearing rehabilitation in comparison to a 6-month delayed treatment group through a cluster randomized controlled study.

Speech-Evoked Auditory Potentials: Multisite Pediatric Evaluation

The goal of this study is to evaluate the sensitivity of a newly-developed prototype device in its ability to measure brain responses to speech sounds in an infant population. The main research questions are: 1) Is the prototype sensitive to brain response differences from infants with hearing loss with and without hearing aids? and 2) How do the measured brain responses from infants with hearing loss compare to infants with normal hearing who are the same age? Participants will have their brain responses measured using the prototype in response to average-level non-sense speech sounds across 1 to 2 sessions in a "no-hearing aids" condition. Participants with hearing loss who are already fit with hearing aids will additionally undergo a "with hearing aids" recording condition.

CABP2 Patient Registry and Natural History Study

This registry is designed to collect comprehensive information about the molecular genetic diagnoses and clinical information of individuals with CABP2-associated hearing impairment to support a natural history study.

Comparative Analysis of Hearing Outcomes: Robotic vs. Manual Insertion of Cochlear Implants

This research study is evaluating two different methods of cochlear implant (CI) insertion - robotic-assisted insertion and manual insertion - to better understand how they affect hearing outcomes. Participants in this study will be randomly assigned to receive their cochlear implant using one of these two techniques. Both methods are performed in a standard operating room by qualified surgeons, and both are considered safe and approved for use. The main goal is to compare how well participants hear one year after surgery based on the insertion method used. The study will also look at things like surgical time, inner ear health, and how the hearing nerve responds. All participants will receive the same type of cochlear implant device and follow-up care. This study may help guide future surgical techniques and improve outcomes for individuals receiving cochlear implants.

A Treatment for a Form of Age-Related Central Auditory Processing Disorder Consisting of Clemastine Fumarate Plus Engineered Sound

The goal of this clinical trial is to determine the efficacy of Clemastine Fumarate in the presence of engineered sound to treat age-related central auditory processing disorder (CAPD). This disorder impacts 800M patients worldwide, including \~1/3 people over 40 years of age and \~1/2 people over 65, resulting in an inability to hear in noisy environments. The primary hypothesis this study aims to test is: engineered sound, driving localized neural circuit activity, will enable Clemastine Fumarate to mature Oligodendrocyte cells and thus remyelinate these activated neural circuits. This Localized Oligodendrocyte Optimization Therapy (LOOT) was highly effective in preclinical animal studies so this clinical trial aims to answer if this therapy will translate to humans. The study is an adaptive design intended to compare the efficacy of the drug in the presence or absence of the engineered sound for improving hearing in noise ability. Trial participants will be tested for hearing thresholds and ability to isolate a sound signal from background noise. If they meet the inclusion criteria, they will be enrolled into one of the four arms of the study and undergo the proposed one-month treatment (drug and sound or respective placebos). After the treatment period, trial participants will be tested again for hearing thresholds and their ability to isolate s sound source of interest from background noise. The hypothesis to be tested in this clinical trial is that the one-month treatment will significantly improve the participant's ability to isolate a sound source of interest from background noise. The design has four arms, drug+sound, placebo+sound, drug+white noise, and placebo+white noise. Based on our preclinical data, control arms are all expected to show identical results, thus our adaptive design includes interim analyses to allow for dropping of two of the three placebo arms should the preclinical results be replicated as anticipated. We will also monitor each participant's general health during the duration of the clinical trial, which will be done by performing a number of blood tests, an EKG and a general physical before and after the one-month treatment period. We expect no significant changes since participants will take the drug for the one-month period at dosages already demonstrated safe in several Phase II studies of multiple sclerosis. Similarly, the engineered sound will be listened to for one hour per day during this month at sound intensities well below threshold that might cause noise-induced hearing damage.

Evaluating a Noise Reduction Algorithm With Cochlear Implant Users

In this study, a noise reduction algorithm will be implemented in various listening situations to evaluate its effectiveness in improving speech understanding for cochlear implant users ages 12 and older.

Clinical Evaluation of Frequency Allocation for Bimodal CI Users

This study will examine experienced, bimodal cochlear implant (CI) patients who receive an alternative frequency allocation table (FAT) to determine how it improves sound quality, device satisfaction, and speech perception abilities with respect to the standard default FAT. The goal of this study is to investigate how improving place-pitch mismatch in bimodal CI users affects 1) sound quality, 2) satisfaction, and 3) speech perception.

Improving Early Intervention in Hearing Impaired Children Using Functional Near-Infrared Spectroscopy (fNIRS)

The goal of this clinical trial is to find out whether hearing test results using functional near-infrared spectroscopy (fNIRS) will help to fast-track early intervention for infants born with a hearing loss. fNIRS is a method of imaging brain activity using light. The main questions are: 1. Can audiologists make more confident decisions about the optimal interventions at different critical points in the hearing care pathway when they are given additional fNIRS information compared to when they have standard audiology test results alone? 2. Is the experience of their infant having an fNIRS test acceptable and comfortable for the parents or care givers?

Follow Up of an Online Hearing Support for First-time Hearing Aid Users

The main questions the research aims to answer are short- and long-term effects on consequences of hearing loss depending on which type of follow-up the participant chooses.

Otoferlin Patient Registry and Natural History Study

This registry is designed to collect comprehensive information about the molecular genetic diagnoses of individuals with otoferlin-associated hearing impairment and clinical information to support a natural history study.

Effects of an Online Hearing Support for First-time Hearing Aid Users

The goal of this randomised controlled trial is to test a online hearing support for first-time hearing aid users. The main questions it aims to answer are short- and long-term effects on the emotional and social consequences of hearing loss that the participants experience, use of communications strategies, experienced listening in complex sound environments and perceived effectiveness and satisfaction with hearing aids.

Effect of Psycho-Educational Interventions in Communication Partners of Older Adults With Hearing Impairment

Hearing impairment is a critical health problem throughout the world. In addition, having an impact on the biopsychosocial functioning of older adults, it places enormous stress and burden on communication partners who interact with older adults with hearing impairment every day. These communication partners generally have restrictions to their social lives and an increased communication burden, as well as symptoms of depression and adopting maladaptive coping and poorer quality of life. Therefore, group-based multi-component psycho-educational interventions are recommended. The purposes of this study are to examine the effects of group-based multi-component psycho-educational interventions (GMC-PEIs) on burden, depression, coping and quality of life in communication partners of older adults with hearing impairment. The single-blind, randomized control trial will include communication partners of older adults with hearing impairment. Participants will be randomized to either intervention groups or control groups.