Denosumab Sequential Therapy

Phase 4
Completed
Conditions
Interventions
Registration Number
NCT03868033
Lead Sponsor
National Taiwan University Hospital
Brief Summary

Denosumab is a potent anti-resorptive agent and is now widely used in the treatment of osteoporosis. Although denosumab has excellent effect to increase bone mass and prevent fracture in FREEDOM study with very low complications, even up to ten years, it's effect is reversible. After holding the drug, circulating denosumab levels fall rapidly, and bone resor...

Detailed Description

Denosumab is a monoclonal antibody directed against the protein RANK-L, the principal regulator of osteoclast development. Thus, it acts as a potent anti-resorptive agent and is now widely used in the treatment of osteoporosis. Because it's easily to be used with very low risk of complications, patient has better compliance and persistence of denosumab than ...

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
101
Inclusion Criteria
  1. Postmenopausal women
  2. Men >50-year-old
  3. After Denosumab treatment ≥ 2 years due to osteoporosis
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Exclusion Criteria
  1. Patientshadeverusedantiosteoporosismedications other than Dmab
  2. Estimated glomerular filtration rate <35 ml/min.
  3. Malignancy
  4. Continuous steroid treatment, hormone therapy or other medical treatment affecting bone metabolism
  5. Secondary osteoporosis
  6. Metabolic bone diseases
  7. Contraindications to ZOL
  8. Patients older than 80 years old
  9. Hypocalcemia
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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Zoledronic acid to DenosumabZoledronic Acidtreat with Zoledronic acid for one year and then shift to Denosumab for another one year
Continuous Zoledronic acidZoledronic AcidContinuous anti-resorptive therapy by Zoledronic acid for 2 years
Continuous DenosumabDenosumabContinuous anti-resorptive therapy by Denosumab for 2 years
Zoledronic acid to DenosumabDenosumabtreat with Zoledronic acid for one year and then shift to Denosumab for another one year
Zoledronic acid to observationZoledronic Acidtreat with Zoledronic acid for one year and then close follow up by bone turn over marker. resume another dose of Zoledronic acid if elevated CTX level above normal range
Primary Outcome Measures
NameTimeMethod
Changes of lumbar spine, total hip and femoral neck bone mineral densitybaseline, 1 year, 2 year

Changes of lumbar spine, total hip and femoral neck bone mineral density from baseline

Secondary Outcome Measures
NameTimeMethod
Clinical osteoporotic fracturebaseline, 1 year, 2 year

Incidence of clinical osteoporotic fracture

Change of bone turnover markerbaseline, 6 months, 12 months, 15 months, 18 months, 24 months

Changes of bone turnover marker, including C-terminal telopeptide of type I collagen (CTX) and propeptide of procollagen type I (P1NP)

Trial Locations

Locations (1)

Department of Orthopedics, National Taiwan University Hospital

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Taipei, N/A = Not Applicable, Taiwan

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