Clinical trials · California
Hearing Loss clinical trials in California
We’re tracking 14 recruiting hearing loss studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06058767Recruiting
Hearing screening for preschoolers
This study offers a free hearing screening for children aged 2 to 6 who attend a community preschool. The goal is to find any hearing issues early so children can get the help they need.
San Francisco, CaliforniaAges 2–6 - NCT06781749Recruiting
Measuring social engagement in older adults with hearing loss
This study tests a new way to objectively measure how socially engaged older adults with hearing loss are. It may help researchers better understand the impact of hearing loss on social participation.
Los Angeles, CaliforniaAges 60 years+ - NCT05821959RecruitingPhase 1/Phase 2
Gene therapy for hearing loss caused by otoferlin gene changes
This early-stage study tests a one-time gene therapy to help patients with profound hearing loss linked to otoferlin gene mutations. It may help hearing by delivering a working version of the otoferlin gene to the inner ear, followed by long-term monitoring.
San Francisco, CaliforniaAges Any age - NCT06580847Recruiting
Choir for older adults with untreated hearing loss
This trial tests whether joining a choir helps older adults with untreated hearing loss. If you have mild-to-moderate hearing loss and do not use hearing aids, this study may be a good fit for you.
Los Angeles, CaliforniaAges 60 years+ - NCT05788536RecruitingPhase 1/Phase 2
Gene therapy study for OTOF-related hearing loss
This trial tests a one-time gene therapy delivered into the ear to improve hearing in people with certain OTOF gene changes. It studies safety and how well the treatment can work, especially in children and infants, as doctors monitor hearing tests for up to 48 weeks.
Los Angeles, CaliforniaAges Any age - NCT06930781Recruiting
Study of Ponto implants outside of the operating room
This study looks at how well Ponto implants work when placed in a clinic or office setting instead of a hospital operating room. It is for adults who already had this procedure in 2019 or later.
Sacramento, CaliforniaAges 18 years+ - NCT05859568Enrolling by invitation
Hearing device fit checks and baseline performance study
This study measures how well hearing devices work and how they are best fitted at the start. It helps the company collect baseline information so future testing and fitting can be improved.
Valencia, CaliforniaAges 8 years+ - NCT05318417Recruiting
Cochlear implant study for one-sided deafness
This study checks whether cochlear implantation is safe and effective for people who have very poor hearing in one ear (single-sided deafness) while the other ear hears normally or nearly normally. You may be enrolled if you meet specific hearing test and health/surgery readiness requirements.
Palo Alto, CaliforniaAges 5 years+ - NCT05365646Recruiting
In-ear device to test and improve speech clarity for fall risk
This study checks whether an in-ear device can enhance how clearly you speak, especially for people at risk of falling. You may do simple walking/standing tasks and use a study mobile app to help collect information.
Palo Alto, CaliforniaAges 55 years+ - NCT05382338RecruitingPhase 3
Sodium thiosulfate to protect hearing in medulloblastoma
This Phase 3 study tests whether adding sodium thiosulfate during treatment for newly diagnosed medulloblastoma can reduce the risk of hearing loss. It is designed for children and teens whose cancer meets specific low-risk or average-risk tumor and lab features.
Loma Linda, CaliforniaAges 4–21 - NCT04708717Recruiting
Testing brain training for people with cochlear implants
This study focuses on people who already use cochlear implants and tests a way to improve how the brain processes sound timing. If you’re an adult cochlear implant user, you may be able to join and help researchers understand what works best for hearing.
Los Angeles, CaliforniaAges 18 years+ - NCT05486637RecruitingEarly Phase 1
Hearing aid and implant study using voice emotion prompts
This early-phase study checks how well people understand emotions in voices when they have a cochlear implant (or normal hearing). It may help improve communication training and support for patients and families.
Los Angeles, CaliforniaAges 6–80 - NCT05634356Recruiting
Study of how early speech learning changes with social input
This study looks at how infants learn speech sounds through everyday social interaction, like parent talk. It may help researchers understand what supports early speech development, including in babies with typical hearing and those with hearing loss or hearing devices.
Los Angeles, CaliforniaAges 7 months–2 years - NCT07218913RecruitingPhase 1
Testing a drug to reduce ear damage from chemo in testicular cancer
This trial tests whether adding Pedmark (sodium thiosulfate) to cisplatin chemotherapy can protect hearing in men with stage II or III testicular germ cell tumors. It aims to reduce the risk of drug-related ear damage while still treating the cancer.
Duarte, CaliforniaAges 18 years+
Hearing Loss trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting hearing loss studies listed above.
- University of Southern California · 4 studies
- University of California, San Francisco · 3 studies
- Rady Children's Hospital San Diego · 2 studies
- Advanced Bionics
- Children's Hospital Los Angeles
- Children's Hospital of Orange County
- City of Hope Comprehensive Cancer Center
- House Institute
What taking part in a hearing loss study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Hearing Loss trials in other states
Common questions
- Are there hearing loss clinical trials in California?
- Yes. We're currently tracking 14 recruiting hearing loss studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a hearing loss study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a hearing loss trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New hearing loss studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.