New registry aims to uncover why some osteoporosis patients get rare fractures
NCT ID NCT01747291
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is building a registry of 300 people in Ontario who have had a rare type of thigh bone fracture called an atypical femur fracture. Researchers want to learn more about what causes these fractures, which have been linked to long-term use of osteoporosis drugs called bisphosphonates. By collecting detailed information from patients, they hope to identify risk factors and improve prevention.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this study could identify risk factors and predictors for atypical femur fractures, helping doctors prevent them in the future.
- What could go wrong
- This is an observational registry, not a treatment trial. It may not find clear causes or lead to immediate changes in care.
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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.
Contacts and locations
Locations
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McMaster University
ENROLLING_BY_INVITATIONHamilton, Ontario, Canada
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St Michael's Hospital
ENROLLING_BY_INVITATIONToronto, Ontario, Canada
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University Health Network
RECRUITINGToronto, Ontario, M5G 2C4, Canada
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