Brittle bone breakthrough? drug may restore hearing
NCT ID NCT04152551
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether bisphosphonates, drugs commonly used to strengthen bones, can also treat hearing loss in people with Osteogenesis Imperfecta (OI) type I. Researchers will enroll 100 adults and children with OI, giving some the drug and comparing their hearing over time. The goal is to see if this treatment can slow or improve hearing loss that often starts early in life for people with OI.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2019
- Expected to finish
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Jan 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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6 to 100 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria (Adult Treatment Arm): * Diagnosis of OI type I * Diagnosis of at least mild hearing loss (\>20dB pure tone average) by audiogram testing * 18+ * Vitamin D level \> 30 Inclusion Criteria (Adult Control Arm): * Diagnosis of OI type I Inclusion Criteria (Child Observational Bisphosphonate Arm) * Diagnosis of OI * Age 6-17 years * Currently receiving bisphosphonate treatment as standard of care Inclusion Criteria (Child Observational No Treatment Arm) * Diagnosis of OI * Age 6-17 years * NOT receiving bisphosphonate treatment and will not receive bisphosphonate treatment for the duration of the study Exclusion Criteria (ALL ARMS): * Family history of hearing-loss (not related to OI or occupational hearing loss) * Pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hospital for Special Surgery
RECRUITINGNew York, New York, 10021, United States
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Other studies related to the condition(s) this trial covers.
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