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OsteoporosisNCT05405894

Efficacy of Zoledronic Acid to Prevent Bone Loss Following Denosumab Discontinuation

An observational study of Osteoporosis and Osteoporosis, Postmenopausal, run by University of Calgary at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This two-year observational, open-label clinical trial will evaluate the efficacy of a once-yearly infusion of zoledronic acid after denosumab discontinuation to maintain tissue mineral density and bone microarchitecture using high-resolution peripheral quantitative computed tomography (HR-pQCT) among post-menopausal… Read more about this study

Who is it for?
Any age, women only
What is being tested?
Zoledronic acid
Type of treatment
Injection or infusion
How many people
20 participants
Where
1 siteCanada
Study dates
1 Sep 2022to 1 Jul 2025
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • Women only
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: The study focuses on post-menopausal, osteoporotic females, anticipating or preparing to transition off active denosumab treatment, for which they have received at least 2 prior injections, via a transition to once-yearly infusion of zoledronic acid.

Who may be able to join

  • Post-menopausal females with osteoporosis
  • Anticipating or preparing to transition off active denosumab treatment for osteoporosis with the use of a once-yearly infusion of zoledronic acid
  • Received at least 2 injections of denosumab treatment
  • Had a recent test (within 6 months) of serum creatine, calcium and phosphate

Who cannot join

  • Any person for whom zoledronic acid would be considered contraindicated
  • Pre-menopausal females
  • Any person with significant chronic kidney disease (eGFR < 50 ml/m2 at time of osteoporosis clinical assessment)
  • Any person with previous adverse reactions or allergy to bisphosphonate therapies
  • Any person with non-corrected hypocalcaemia
  • Any person currently taking, and unable to discontinue the use of, prohibited medications including: ZOMETA, other bisphosphonate therapies, calcitonin, aminoglycosides, loop diuretics and agiogenesis inhibitors
  • Any person with other history, condition, therapy, or uncontrolled intercurrent illness, which could in the opinion of the Qualified Medical Investigator affect compliance with study requirements or which would make the participant unsuitable for this study
  • Any person with simultaneous participation in another interventional clinical study (e.g., Phase 1-3 clinical studies) or treatment with any investigational medicinal product within 30 days prior to screening visit

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Calgary, McCaig Institute for Bone and Joint Health

    Calgary, Alberta, T2N 4Z6

Other trials in Canada

About this study

Official title: Efficacy of a Single Infusion of Zoledronic Acid to Mitigate the Rebound Effect of Rapid Bone Loss Following Denosumab Treatment Discontinuation

This two-year observational, open-label clinical trial will evaluate the efficacy of a once-yearly infusion of zoledronic acid after denosumab discontinuation to maintain tissue mineral density and bone microarchitecture using high-resolution peripheral quantitative computed tomography (HR-pQCT) among post-menopausal women with osteoporosis.

Read the detailed description

As part of an observational study, twenty female osteoporosis patients looking to transition off denosumab therapy will be recruited from the David Hanley Osteoporosis Centre and affiliated primary care physicians in Calgary. The decision to stop denosumab will be made in accordance with standard clinical care and fully separate from the present study. Approximately 6-8 months after the patients' final denosumab injection, patients will receive a single infusion of zoledronic acid (5 mg/100mL) as part of their routine standard of care. The 6-8 month time frame corresponds with the recommended duration between subsequent denosumab injections. Concurrent with zoledronic acid treatment (within one month before or after infusion), patients will visit to the McCaig Institute for Bone and Joint Health to receive a baseline dual X-ray absorptiometry scan (lumbar spine, lateral vertebral assessment, and hip) and a high-resolution peripheral computed tomography scan (radius and tibia) to quantify areal BMD and volumetric BMD/bone microarchitecture, respectively. They will also complete the MoJo Fracture Risk Questionnaire. Patients will return for repeat scanning and questionnaire administrations to monitor potential changes to bone at 6 and 12 months after baseline. Any fracture events during the 12-month time frame will be logged in consultation with the patients' physician as documented through routine clinical follow-up. Researchers may contact participants to repeat scanning and questionnaire administration at the 24-month time point, if participants agree to this contact within the informed consent.

Being tested
Zoledronic acid
Medical subject headings
Osteoporosis, Osteoporosis, Postmenopausal, Bone Diseases, Metabolic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Zoledronic acidDrug

    Also called Dr. Reddy's Zoledronic acid

    Once-yearly infusion of zoledronic acid following denosumab discontinuation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in volumetric Bone Mineral Density (BMD)/bone microarchitecture from baseline

    High-resolution peripheral computed tomography scan (radius and tibia) will be used to quantify volumetric BMD/bone microarchitecture

    Measured: Change from Baseline (within 1-month of infusion) to 6-months and 12-months

  2. Change in areal Bone Mineral Density (BMD) from baseline

    Dual X-ray absorptiometry scan (lumbar spine, lateral vertebral assessment, and hip) will be used to quantify areal BMD

    Measured: Change from Baseline (within 1-month of infusion) to 6-months and 12-months

Secondary outcomes (2)
  1. Fractures

    Any clinically diagnosed fractures will be reported by treating physician

    Measured: 1 year

  2. MoJo Fracture Risk Questionnaire

    An assessment of fracture risk

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jun 2022
  2. Study start1 Sep 2022
  3. Primary completion1 Jul 2024 (estimated)
  4. Study completion1 Jul 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05405894
Sponsor's protocol ID
REB21-1898
Status last verified
Nov 2023
First submitted
27 May 2022
Last updated
14 May 2024
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Solling AS, Harslof T, Langdahl B. Treatment with Zoledronate Subsequent to Denosumab in Osteoporosis: a Randomized Trial. J Bone Miner Res. 2020 Oct;35(10):1858-1870. doi: 10.1002/jbmr.4098. Epub 2020 Jul 12.

    PubMed 32459005
  • Anastasilakis AD, Polyzos SA, Makras P, Aubry-Rozier B, Kaouri S, Lamy O. Clinical Features of 24 Patients With Rebound-Associated Vertebral Fractures After Denosumab Discontinuation: Systematic Review and Additional Cases. J Bone Miner Res. 2017 Jun;32(6):1291-1296. doi: 10.1002/jbmr.3110. Epub 2017 Mar 13.

    PubMed 28240371

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoporosis and Osteoporosis, Postmenopausal, run by University of Calgary at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 14 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in volumetric Bone Mineral Density (BMD)/bone microarchitecture from baseline (time frame: Change from Baseline (within 1-month of infusion) to 6-months and 12-months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05405894, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 May 2024.

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