NCT02838121

Brief Summary

Periprosthetic bone loss caused by stress-shielding effect, a phenomenon of bone atrophy under mechanical unloading after THR implantation, further compromises the longevity of implant. The prospective randomized study is aimed to investigate the periprosthetic bone loss after primary total hip replacements.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
62

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Dec 2009

Longer than P75 for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2009

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2013

Completed
3.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2016

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

July 7, 2016

Completed
13 days until next milestone

First Posted

Study publicly available on registry

July 20, 2016

Completed
Last Updated

July 20, 2016

Status Verified

July 1, 2016

Enrollment Period

3.1 years

First QC Date

July 7, 2016

Last Update Submit

July 15, 2016

Conditions

Keywords

bisphosphonateTotal hip replacementfunctional outcomesbone mineral density

Outcome Measures

Primary Outcomes (3)

  • bone mineral density [g/cm2] of the 7 Gruen zones

    bone mineral density measured by dual energy x-ray absorptiometry

    5 years

  • bone mineral density change relative to the baseline values of the 7 Gruen zones

    bone mineral density measured by dual energy x-ray absorptiometry

    5 years

  • implant loosening or migration

    check the implant position by serial standard X ray follow-up

    5 years

Secondary Outcomes (11)

  • serum alkaline phosphatase

    5 years

  • serum calcium level

    5 years

  • serum phosphate level

    5 years

  • serum osteocalcin level

    5 years

  • serum N-telopeptide procollagen level

    5 years

  • +6 more secondary outcomes

Study Arms (2)

Aclasta

EXPERIMENTAL

Aclasta IV once annual for 2 years

Drug: Aclasta

Placebo

PLACEBO COMPARATOR

Placebo group

Drug: Placebo

Interventions

Aclasta once annually for 2 years

Aclasta

No IV aclasta

Placebo

Eligibility Criteria

Age35 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female,between 35 and 85 years of age
  • Indicated for Total hip replacement for various hip diseases
  • Has preoperative DXA study within 3 months before the total hip replacement procedure or willing to receive preoperative DXA study as a baseline comparison
  • Signed written informed consent
  • Standard transgluteal approach for total hip replacement using Zimmer Triology Cup and Versys Fiber Metal Taper Stem with metal to highly cross-linked polyethylene bearing surface

You may not qualify if:

  • Any prior use of intravenous bisphosphonate within the last 2 years
  • Uncontrolled seizure disorders associated with falls
  • A history of invasive malignancy of any organ system, treated or untreated, within the past five years; excluding, basal cell or squamous cell carcinoma of the skin, colonic polyps with non-invasive malignancy which have been removed
  • Carcinoma in situ of the uterine cervix
  • History of osteogenesis imperfecta, multiple myeloma, or Paget's disease
  • Active primary hyperparathyroidism
  • History of iritis or uveitis
  • Self-reported history of diabetic nephropathy or retinopathy
  • AST or ALT more than twice the upper limit of normal
  • Alkaline phosphatase more than twice the upper limit of normal
  • Serum calcium 2.75 mmol/L (11.0 mg/dL)
  • Baseline renal insufficiency (calculated creatinine clearance 35 ml/min)
  • History of hypersensitivity to bisphosphonates
  • Use of any investigational drug(s) and/or devices within 30 days prior to randomization
  • Any medical or psychiatric condition which, in the Investigator's opinion, would preclude the participant from adhering to the Protocol or completing the trial per protocol
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chang Gung Memorial Hospital

Kweishan, Taoyuan, 333, Taiwan

Location

Related Links

MeSH Terms

Interventions

Zoledronic Acid

Intervention Hierarchy (Ancestors)

DiphosphonatesOrganophosphonatesOrganophosphorus CompoundsOrganic ChemicalsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Clinical Professor, Chang Gung Memorial Hospital, Department of Orthopaedic Surgery

Study Record Dates

First Submitted

July 7, 2016

First Posted

July 20, 2016

Study Start

December 1, 2009

Primary Completion

January 1, 2013

Study Completion

June 1, 2016

Last Updated

July 20, 2016

Record last verified: 2016-07

Data Sharing

IPD Sharing
Will not share

Locations