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DiphosphonatesNCT05623540

Bisphosphonates Use After Total Joint Arthroplasty

An observational study of Diphosphonates, run by National Defense Medical Center, Taiwan at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Background Bisphosphonates has been associated with a decreased risk of revision total joint replacements because of its effects on decreased periprosthetic bone loss and prosthetic migration. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Diphosphonates
What is being tested?
Bisphosphonates, Combinations
How many people
27,405 participants
Where
1 siteTaiwan
Study dates
1 Jan 2000to 2 Nov 2022
How long will I take part?
15 Years
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 40 years and older
  • All sexes
  • Adult, Older adult

Study population: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) was used to identify diagnoses and related procedures. The target cohort in NHIRD were those who underwent primary total joint arthroplasty during the study period (January 1, 2000 to December 31, 2015).

Who may be able to join

  • Patients who underwent primary total joint arthroplasty during the study period (January 1, 2000 to December 31, 2015).

Who cannot join

  • Patients with total joint arthroplasty before the index date,
  • Patients with existing pathologic fracture, nonunion of fracture and partial joint replacement,
  • Patients who were lost to follow-up
  • Patients < 40 years old

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • Tri-Service General Hospital, National Defense Medical Center

    Taipei, 11472

Other trials in Taiwan

About this study

Official title: Postoperative Use of Bisphosphonates Reduces Adverse Outcome After Primary Total Joint Arthroplasty: A Nationwide Population-based Cohort Study

Background Bisphosphonates has been associated with a decreased risk of revision total joint replacements because of its effects on decreased periprosthetic bone loss and prosthetic migration. However, the results in the early literature are inconsistent and the influence of bisphosphonates on associated complications and subsequent total joint arthroplasty (TJA) remains unknown. This study is to investigate the association between the use of bisphosphonates and risk of adverse outcomes after primary TJA.

Materials and Methods This matched cohort study utilized National Health Insurance Research Database in Taiwan to identify patients who underwent primary TJA over a 15-year period (January 2000- December 2015 inclusive). Study participants were further categorized into two groups: bisphosphonates users and nonusers, using propensity score matching. The Kaplan-Meier curve analysis and adjusted hazard ratios (aHR) of revision surgery, adverse outcomes of primary surgery and undergoing subsequent TJA were calculated using Cox regression analysis.

Conditions
Diphosphonates
Being tested
Bisphosphonates, Combinations
Keywords
Bisphosphonates, Total joint arthroplasty, Revision surgery, Periprosthetic fracture
Medical subject headings
Periprosthetic Fractures

What participants receive

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

  • Bisphosphonates, CombinationsDrug

Study groups in NCT05623540
Study groupRoleWhat they receive
bisphosphonates usersPatients who underwent primary total joint arthroplasty with bisphosphonates use
Receives: Drug: Bisphosphonates, Combinations
bisphosphonates nonusersPatients who underwent primary total joint arthroplasty without bisphosphonates use
Receives: Drug: Bisphosphonates, Combinations

What is being measured

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

  1. revision rate of joint arthroplasty

    revision rate of joint arthroplasty after primary surgery

    Measured: a 15-year period (January 2000- December 2015 inclusive)

Secondary outcomes (4)
  1. The rate of secondary total joint arthroplasty

    The rate of secondary total joint arthroplasty

    Measured: a 15-year period (January 2000- December 2015 inclusive)

  2. The rate of periprosthetic joint infection

    The rate of periprosthetic joint infection

    Measured: a 15-year period (January 2000- December 2015 inclusive)

  3. The rate of periprosthetic fracture

    The rate of periprosthetic fracture

    Measured: a 15-year period (January 2000- December 2015 inclusive)

  4. Mortality rate

    Mortality rate

    Measured: a 15-year period (January 2000- December 2015 inclusive)

Timeline

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

  1. First posted21 Nov 2022
  2. Study start1 Jan 2000
  3. Primary completion31 Dec 2015
  4. Study completion2 Nov 2022

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
Other
Enrolment
27,405 participants (actual)
Target duration
15 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT05623540
Sponsor's protocol ID
TSGH-D-110103
Status last verified
Nov 2022
First submitted
13 Nov 2022
Last updated
22 Nov 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: There is no plans to make individual participant data (IPD) available to other researchers.

Publications

  • Shih JT, Tan TL, Shen PH, Yeh TT, Wu CC, Pan RY, Chien WC, Chung CH, Wang SH. Postoperative Bisphosphonates Use is Associated with Reduced Adverse Outcomes After Primary Total Joint Arthroplasty of Hip and Knee: A Nationwide Population-Based Cohort Study. Calcif Tissue Int. 2024 May;114(5):451-460. doi: 10.1007/s00223-024-01192-6. Epub 2024 Mar 16.

    PubMed 38492035

Questions about this trial

What is this clinical trial studying?

An observational study of Diphosphonates, run by National Defense Medical Center, Taiwan at 1 site in Taiwan.

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 1 inclusion and 4 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: finished, as of the sponsor's last update on 22 Nov 2022. 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 Taiwan. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

revision rate of joint arthroplasty (time frame: a 15-year period (January 2000- December 2015 inclusive)). 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 NCT05623540, which also lists 1 linked publication.

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 22 Nov 2022.

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