Is surgery better than watching for seniors with high calcium?
NCT ID NCT01087619
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether surgery helps people over 65 with mild primary hyperparathyroidism (high calcium levels) compared to just monitoring them. The goal was to see if surgery improves bone density and lowers fracture risk. A total of 102 participants were randomly assigned to either surgery or follow-up only.
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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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102 people
The number who actually took part.
- Started
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Aug 2010
- Finished
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Feb 2026
- 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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66 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.
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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: * Primary Hyperparathyroidism * No previous parathyroid surgery * Sporadic disease Exclusion Criteria: * Z-score of Bone density \< -2.5 SD (regardless of site) * Serum level of ionized calcium \> 1.50 mmol/L * Inability to understand given information or to comply with scheduled follow-up * Symptoms of hypercalcaemia for which specific medical treatment has been prescribed
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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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Skåne University Hospital, Department of Surgery, Lund
Lund, 22185, Sweden
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Other studies related to the condition(s) this trial covers.
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