New hope for rare bone disease pain?
NCT ID NCT01791842
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a drug called tocilizumab for people with fibrous dysplasia of bone who still had pain after standard treatment. The drug blocks a protein linked to bone breakdown. Nineteen adults participated in this small, early-stage trial to see if the drug could reduce bone pain and slow bone damage.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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19 people
The number who actually took part.
- Started
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May 2013
- Finished
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Jun 2018
- 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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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * fibrous dysplasia of bone * previously treated with IV bisphosphonates * persistent bone pain and increased bone remodeling Exclusion Criteria: * Chronic renal failure * serious infectious diseases * liver enzymes abnormality * pregnancy * dyslipidemia
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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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Service de Rhumatologie, Groupe Hospitalier Pellegrin
Bordeaux, France
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Service de rhumatologie, Hopital Edouard Herriot, HCL
Lyon, 69003, France
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Service de rhumatologie, Hôpital Lariboisière
Paris, 75010, France
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