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Clinical Trial Summary

Patients with primary hyperparathyroidism (pHPT) with osteopenia and osteoporosis are treated with strontium ranelate/Ca+Vitamin-D or placebo/Ca+Vitamin D after successful surgical treatment of pHPT.

Strontium ranelate/Ca + Vitamin-D helps to regain bone mass in patients with osteopenia or osteoporosis after successful parathyroidectomy for pHPT and results in higher gain of BMD than placebo treated patients.


Clinical Trial Description

The chronic excessive hypersecretion of parathyroid hormone (PTH) has significant impact on bone remodeling. In primary hyperparathyroidism (PHPT) bone turnover is increased, resulting in a higher resorption of bone and thus loss of bone density.

After successful surgical treatment of pHPT bone metabolism switches from catabolic state to anabolic state again. However studies show that especially postmenopausal women regain significantly less BMD but these women suffer from osteopenia and osteoporosis most often and would need to regain as much bone mass as possible to prevent fractures. The optimal state would be to reach normal BMD again. Although this state is hardly reachable especially these patients may benefit from a treatment acting anti-resorptive and rising bone formation. The only drug combining these qualities known so far is Strontium ranelate.

Therefore the hypothesis is that Strontium ranelate/Ca + Vitamin-D helps to regain bone mass in patients with osteopenia or osteoporosis after successful parathyroidectomy for pHPT and results in higher gain of BMD than placebo treated patients. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01222026
Study type Interventional
Source Medical University of Vienna
Contact
Status Completed
Phase Phase 4
Start date September 2010
Completion date December 2014

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