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Safety and Efficacy Study to Evaluate Denosumab Compared With Zoledronic Acid in Postmenopausal Women With Osteoporosis

Phase 4
Completed
Conditions
Post Menopausal Osteoporosis
Interventions
Biological: Denosumab
Drug: Zoledronic Acid
Drug: Placebo to Zoledronic Acid
Drug: Placebo to Denosumab
Registration Number
NCT01732770
Lead Sponsor
Amgen
Brief Summary

This study will compare the effectiveness of denosumab treatment every 6 months with once yearly zoledronic acid treatment on bone mineral density (BMD) at various skeletal sites.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
643
Inclusion Criteria
  • Ambulatory postmenopausal women.
  • Age 55 years or older
  • Subject has provided informed consent prior to any study specific procedures
  • Received oral bisphosphonate therapy for osteoporosis at least 2 years prior to screening visit
  • Screening BMD (g/cm²) values at the lumbar spine, total hip or femoral neck values of equal to or less than those listed in the protocol.
  • At least 2 lumbar vertebrae and one hip must be evaluable by dual energy x-ray absorptiometry (DXA) at the screening visit
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Exclusion Criteria
  • Received other osteoporosis treatment or bone active treatment

  • Evidence of history of any of the following:

    • hyperthyroidism (stable on antithyroid therapy is allowed)
    • hypothyroidism (stable on thyroid replacement therapy is allowed)
    • hypo- or hyperparathyroidism
    • hypo- or hypercalcemia based on the central laboratory reference ranges
    • Recent tooth extraction (within 6 months of screening visit)
    • Paget disease of bone (subject report or chart review)
    • other bone diseases which affect bone metabolism (eg, osteopetrosis, osteogenesis imperfecta) (chart review)
  • Abnormalities of the following per central laboratory reference ranges:

    • vitamin D deficiency (25[OH] vitamin D level < 20 ng/mL), repletion will be allowed and subjects may be re-screened
    • hypercalcemia
    • elevated transaminases ≥ 2.0 x upper limits of normal (ULN)
  • History of any solid organ or bone marrow transplant

  • Malignancy (except nonmelanoma skin cancers, cervical or breast ductal carcinoma in situ) within the last 5 years

  • Known intolerance to calcium or vitamin D supplements

  • Self-reported alcohol or drug abuse within 12 months prior to screening

  • Currently receiving treatment in another investigational device or drug study, or less than 30 days since ending treatment on another investigational device or drug study(s)

  • History or evidence of any other clinically significant disorder, condition or disease that in the opinion of the Investigator or Amgen physician, if consulted, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion

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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Denosumab 60 mgDenosumabParticipants received denosumab 60 mg subcutaneous injection once every 6 months for 12 months and placebo to zoledronic acid by intravenous infusion on Day 1.
Denosumab 60 mgPlacebo to Zoledronic AcidParticipants received denosumab 60 mg subcutaneous injection once every 6 months for 12 months and placebo to zoledronic acid by intravenous infusion on Day 1.
Zoledronic Acid 5 mgPlacebo to DenosumabParticipants received zoledronic acid 5 mg by intravenous infusion on Day 1 and placebo to denosumab by subcutaneous injection on Day 1 and at Month 6.
Zoledronic Acid 5 mgZoledronic AcidParticipants received zoledronic acid 5 mg by intravenous infusion on Day 1 and placebo to denosumab by subcutaneous injection on Day 1 and at Month 6.
Primary Outcome Measures
NameTimeMethod
Percent Change From Baseline in Lumbar Spine Bone Mineral Density at Month 12 - Non-inferiority AnalysisBaseline and Month 12

Bone mineral density (BMD) of the lumbar spine was measured by dual-energy x-ray absorptiometry (DXA). DXA scans were analyzed by a central imaging facility.

Secondary Outcome Measures
NameTimeMethod
Percent Change From Baseline in Total Hip BMD at Month 12 - Non-inferiority AnalysisBaseline and Month 12

BMD of the hip was measured by DXA. DXA scans were analyzed by a central imaging facility.

Percent Change From Baseline in Total Hip BMD at Month 12 - Superiority AnalysisBaseline and Month 12
Percent Change From Baseline in Lumbar Spine BMD at Month 12 - Superiority AnalysisBaseline and Month 12

Trial Locations

Locations (1)

Research Site

🇪🇸

Madrid, Spain

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