Short bone drug boost may tighten spine screws in osteoporosis patients
NCT ID NCT03770338
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether taking teriparatide (a bone-building drug) for one month before lumbar fusion surgery helps surgeons place screws more securely in patients with osteoporosis. About 192 participants will be randomly assigned to receive either the drug or no pretreatment. The main goal is to measure screw tightness during surgery, with follow-up checks on bone density, fusion success, and quality of life.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 192 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2019
- Expected to finish
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Jun 2026
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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40 to 100 years
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients must be osteoporotic: baseline BMD assessed by DEXA scan must be considered as osteoporotic (\>2.5 SD from sex-matched young adult, or previous vertebral and/or femoral fractures) and indicated for spinal fusion surgery Exclusion Criteria: * Paget disease of bone, high laboratory tests for serum alkaline phosphatase or calcium, previous radiation treatment or fusion surgery to lumbar spine, bone tumors, metabolic bone disease, and hypersensitivity to teriparatide
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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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Duchess of Kent Children's Hospital
Hong Kong, Hong Kong
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Jason Pui Yin Cheung
Hong Kong, Please Select An Option Below, Hong Kong
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Queen Mary Hospital
Hong Kong, Hong Kong
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Other studies related to the condition(s) this trial covers.
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- Could a simple education program stop the cycle of fractures in the elderly?