NCT05091099

Brief Summary

This study intends to investigate whether Alendronate and Zoledronate can prevent bone mineral density loss after long-term treatment with Denosumab.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
44

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Jan 2022

Longer than P75 for phase_4

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 11, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

October 25, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

January 10, 2022

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 14, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 14, 2025

Completed
Last Updated

November 19, 2025

Status Verified

November 1, 2025

Enrollment Period

3.8 years

First QC Date

October 11, 2021

Last Update Submit

November 16, 2025

Conditions

Keywords

Osteoporosisdenosumabalendronatezoledronic acid

Outcome Measures

Primary Outcomes (1)

  • Bone mineral density of lumbar spine

    Bone mineral density of lumbar spine

    one year

Secondary Outcomes (4)

  • Bone mineral density of femoral neck

    one year

  • Bone mineral density of total hip

    one year

  • bone turnover markers

    13 months

  • clinical osteoporotic fracture

    1 year

Study Arms (2)

On time Zoledronate

ACTIVE COMPARATOR

Zoledronate would be given (one dose for one year) after the completiong of denosumab on time

Drug: zoledronate

Alendronate and Zoledronate

EXPERIMENTAL

Alendronate would be given one month before the the completiong of denosumab and the following 3 months (Total four months). After the completion of Alendronate, Zoledronate would be given (one dose).

Drug: Alendronate and Zoledronate

Interventions

On time Zoledronate: Zoledronate would be given (one dose for one year) after the completiong of denosumab on time

Also known as: Zoledronic acid
On time Zoledronate

Alendronate and Zoledronate: Alendronate would be given one month before the the completiong of denosumab and the following 3 months (Total four months). After the completion of Alendronate, Zoledronate would be given (one dose).

Alendronate and Zoledronate

Eligibility Criteria

Age50 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Postmenopausal women or men over 50 years old
  • Continuous Denosumab treatment for at least three years (up to six doses).

You may not qualify if:

  • Secondary osteoporosis
  • Metabolic bone diseases
  • Active or prior malignancy
  • Ongoing systemic glucocorticoid therapy
  • Current use of hormone replacement therapy
  • Current use of any medication known to affect bone metabolism
  • Prior use of any osteoporosis medication other than denosumab
  • Estimated glomerular filtration rate (eGFR) \< 40 mL/min
  • Known hypersensitivity to zoledronic acid
  • Hypocalcemia
  • Any other contraindication to zoledronic acid
  • Age \> 85 years
  • Esophageal abnormalities that delay esophageal emptying (e.g., esophageal stricture, achalasia)
  • Inability to stand or sit upright for at least 30 minutes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital, Yunlin branch

Douliu, Yunlin County, 640, Taiwan

Location

MeSH Terms

Conditions

Osteoporosis

Interventions

Zoledronic AcidAlendronate

Condition Hierarchy (Ancestors)

Bone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

DiphosphonatesOrganophosphonatesOrganophosphorus CompoundsOrganic ChemicalsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: One arm accept on time zoledronic acid after long-tearm denosumab. Another arm accept alendronate for 4 months and then zoledronic acid after long-tearm denosumab.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 11, 2021

First Posted

October 25, 2021

Study Start

January 10, 2022

Primary Completion

November 14, 2025

Study Completion

November 14, 2025

Last Updated

November 19, 2025

Record last verified: 2025-11

Locations