Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 7, 2026, 11:08 PM EDT

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Showing 1–24 of 224 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Retinitis Pigmentosa
Interventions
Not listed
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Completed Not applicable Interventional Accepts healthy volunteers Results available

CI532 - Early Experience Study

NCT02755935
Conditions
Sensorineural Hearing Loss, Bilateral
Interventions
Cochlear Nucleus CI532
Device
Lead sponsor
Cochlear
Industry
Eligibility
12 Months and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
6
States / cities
Skokie, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more
Conditions
Hearing Loss, Sensorineural
Interventions
Electric-Acoustic Stimulation (EAS) Cochlear Implant System
Device
Lead sponsor
Med-El Corporation
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
7
States / cities
Palo Alto, California • Miami, Florida • Kansas City, Kansas + 4 more
Conditions
Usher Syndrome, Cochlear Implantation
Interventions
Experimental manipulation of stimulation parameters
Other
Lead sponsor
Ohio State University
Other
Eligibility
1 Year to 85 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
4
States / cities
Boston, Massachusetts • Columbus, Ohio • Nashville, Tennessee
Completed No phase listed Observational Accepts healthy volunteers

Sight and Hearing Investigation Into Effects on Delirium

NCT06176625
Conditions
Hearing Loss, Hearing Loss, Age-Related, Hearing Disability, Delirium, Delirium in Old Age, Delirium of Mixed Origin, Delirium With Dementia, Delirium on Emergence, Delirium, Cause Unknown, Delirium Superimposed on Dementia, Delirium Confusional State, Delirium;Non Alcoholic, Hearing Loss, Bilateral, Hearing Loss, Sensorineural, Hearing Loss, Functional, Hearing Loss, High-Frequency, Hearing
Interventions
Communication Signage, Amplifier Use
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
65 Years and older
Enrollment
1,543 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Hearing Loss
Interventions
TELLYHealth
Other
Lead sponsor
Healthcare Technologies and Methods, LLC
Industry
Eligibility
50 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Gainesville, Florida • Rockville, Maryland
Completed No phase listed Interventional Results available

Fundamental Asynchronous Stimulus Timing Sound Coding Study

NCT02698787
Conditions
Sensorineural Hearing Loss
Interventions
Experimental sound coding strategy (FAST), Commercially available ACE sound coding strategy
Device
Lead sponsor
Cochlear
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Sensori-Neural Deafness, Sensorineural Hearing Loss, Sensorineural Hearing Loss (Disorder), Sensorineural Hearing Loss, Bilateral, Sensorineural Hearing Loss, Profound, Sensorineural Hearing Loss, Severe
Interventions
Acclaim Cochlear Implant
Device
Lead sponsor
Envoy Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
7
States / cities
Tucson, Arizona • Seal Beach, California • Gainesville, Florida + 4 more
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Apple Hearing Study

NCT04172766
Conditions
Hearing Loss, Noise-Induced, Hearing Loss, Tinnitus
Interventions
Not listed
Lead sponsor
Apple Inc.
Industry
Eligibility
18 Years and older
Enrollment
300,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Completed Not applicable Interventional Accepts healthy volunteers Results available

Iowa/Nucleus 10/10 mm and Nucleus Freedom Feasibility Study

NCT00594061
Conditions
Hearing Loss, Sensorineural, Hearing Loss, Bilateral
Interventions
Iowa/Nucleus 10/10 mm and Freedom Cochlear Implantation
Device
Lead sponsor
Bruce J Gantz
Other
Eligibility
12 Months to 24 Months
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Completed Not applicable Interventional Accepts healthy volunteers Results available

Remote Microphone Candidacy Study

NCT03897634
Conditions
Hearing Loss, Sensorineural
Interventions
Remote Microphone
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Evanston, Illinois
Withdrawn Phase 1Phase 2 Interventional Accepts healthy volunteers

Prevention of Noise-induced Hearing Loss

NCT02049073
Conditions
Noise-induced Hearing Loss
Interventions
Zonisamide, Methylprednisolone
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Hearing Loss, Mixed, Hearing Loss, Conductive, Single-Sided Deafness, Bone Conduction
Interventions
Cochlear™ Osia® System (Osia® 2), Cochlear™ Osia® System (Osia® 3)
Device
Lead sponsor
Cochlear
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Denver, Colorado
Conditions
Cochlear Implant, Cochlear Hearing Loss
Interventions
Advanced Bionics' Acoustic Earhook
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Conditions
Hearing Loss, Sensorineural Hearing Loss, Noise-Induced Hearing Loss
Interventions
HPN-07, NAC, Placebo
Drug
Lead sponsor
Otologic Pharmaceutics, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Raleigh, North Carolina
Completed No phase listed Observational Accepts healthy volunteers

Investigation of Anatomical Correlates of Speech Discrimination

NCT01781039
Conditions
Sensorineural Hearing Loss
Interventions
Hearing Aid fitting
Device
Lead sponsor
Steward St. Elizabeth's Medical Center of Boston, Inc.
Other
Eligibility
18 Years to 100 Years
Enrollment
186 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Brighton, Massachusetts
Completed Phase 3 Interventional Results available

Sudden Deafness Treatment Trial

NCT00097448
Conditions
Sudden Deafness
Interventions
prednisone, methylprednisolone sodium succinate
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years and older
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
14
States / cities
Los Angeles, California • San Diego, California • Gainesville, Florida + 10 more
Conditions
Retinitis Pigmentosa, Usher Syndrome Type 2, Deaf Blind, Retinal Disease, Eye Diseases, Eye Diseases, Hereditary, Eye Disorders Congenital, Vision Disorders
Interventions
Ultevursen, Sham-procedure
Drug · Other
Lead sponsor
Laboratoires Thea
Industry
Eligibility
12 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
10
States / cities
San Diego, California • San Francisco, California • Miami, Florida + 7 more
Conditions
Sensorineural Hearing Loss, Hearing Loss
Interventions
P300 Visually evoked potential
Diagnostic Test
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Completed Not applicable Interventional Accepts healthy volunteers

MED-EL Remote Care Multi-Center Feasibility Study

NCT05973669
Conditions
Hearing Loss, Sensorineural, Cochlear Implant, Cochlear Implant Recipients, Hearing Disorders, Cochlear Implants
Interventions
MED-EL Remote Care
Device
Lead sponsor
Med-El Corporation
Industry
Eligibility
Not listed
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
3
States / cities
Iowa City, Iowa • Ann Arbor, Michigan • Chapel Hill, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Performance of a New Implant System for Bone Conduction Hearing

NCT03086135
Conditions
Deafness; Sensoneural Single Sided, Conductive Hearing Loss, Mixed Hearing Loss
Interventions
Osia System
Device
Lead sponsor
Cochlear
Industry
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Terminated Not applicable Interventional Results available

The Effect of Low-Level Laser Stimulation on Hearing Thresholds

NCT01820416
Conditions
Hearing Loss
Interventions
Low-level Laser Therapy, Placebo Comparator: Disabled Laser
Radiation · Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 75 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Iowa City, Iowa
Recruiting No phase listed Observational Accepts healthy volunteers

Inherited Retinal Degenerative Disease Registry

NCT02435940
Conditions
Eye Diseases Hereditary, Retinal Disease, Achromatopsia, Bardet-Biedl Syndrome, Bassen-Kornzweig Syndrome, Batten Disease, Best Disease, Choroidal Dystrophy, Choroideremia, Cone Dystrophy, Cone-Rod Dystrophy, Congenital Stationary Night Blindness, Enhanced S-Cone Syndrome, Fundus Albipunctatus, Goldmann-Favre Syndrome, Gyrate Atrophy, Juvenile Macular Degeneration, Kearns-Sayre Syndrome, Leber Congenital Amaurosis, Refsum Syndrome, Retinitis Pigmentosa, Retinitis Punctata Albescens, Retinoschisis, Rod-Cone Dystrophy, Rod Dystrophy, Rod Monochromacy, Stargardt Disease, Usher Syndrome
Interventions
Not listed
Lead sponsor
Foundation Fighting Blindness
Other
Eligibility
Not listed
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2037
U.S. locations
1
States / cities
Columbia, Maryland
Completed No phase listed Observational Results available

Littlears Auditory Questionnaire: Validation Study in CI Children

NCT00785707
Conditions
Hearing Loss
Interventions
Not listed
Lead sponsor
Med-El Corporation
Industry
Eligibility
Up to 24 Months
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
5
States / cities
Augusta, Georgia • Durham, North Carolina • Nashville, Tennessee + 2 more