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OsteoporosisNCT06414616

Real-World Evidence of Adherence to Denosumab Therapy and Fracture Risk Associated With Drug Withdrawal: A Cross-sectional Study

An observational study of Osteoporosis, run by Trakya University at 1 site in Turkey (Türkiye).

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

In the light of current literature data, it is not recommended to discontinue Denosumab therapy without initiating another antiresorptive therapy. It is known that there is a rebound increase in bone resorption markers and a rapid decrease in bone mineral density (BMD) when patients using Denosumab remain untreated… Read more about this study

Who is it for?
Any age
Conditions the study is for
Osteoporosis
How many people
210 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Oct 2022to 1 Mar 2024
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
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Patients initiated on Denosumab therapy at Trakya University Pyhsical Medicine and Rehabilitation Osteoporosis Unit between 2015-2021 and had received at least 2 doses of injection.

Who may be able to join

  • 1. Patients who had received at least two consecutive doses of Denosumab ,with a gap of fewer than 8 months, with the diagnosis of osteoporosis.
  • 2. Patients who had at least one radiological image before the initiation of Denosumab therapy in which the lumbar and thoracic spine could be visualised
  • 3. Patients whose BMD and T-score values had been evaluated via DXA scan and FRAX scores had been calculated before the initiation of Denosumab therapy.

Who cannot join

  • 1. Patients missing any of the above mentioned data
  • 2. Patients who develop fractures due to cancer, trauma or Paget's disease.
  • 3. Patients receiving monthly Denosumab to prevent bone metastasis.

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Trakya University Medical Faculty

    Edirne, 22030

Other trials in Turkey (Türkiye)

About this study

Official title: Are We Overly Concerned About Rebound Fractures? Real-World Evidence of Adherence to Denosumab Therapy and Fracture Risk Associated With Drug Withdrawal: A Cross-sectional Study

In the light of current literature data, it is not recommended to discontinue Denosumab therapy without initiating another antiresorptive therapy. It is known that there is a rebound increase in bone resorption markers and a rapid decrease in bone mineral density (BMD) when patients using Denosumab remain untreated for 1 year. The coronavirus disease (Covid-19) pandemic has caused an unprecedented disruption in the management of osteoporosis, as in many chronic diseases. This study aims to determine whether the risk of rebound-associated osteoporotic fracture development is increased in patients who discontinued Denosumab therapy due to any reason but especially due to hesitancy to come to hospitals or lack of access to treatment institutions during the pandemic period as well as to evaluate the factors affecting treatment compliance.

Read the detailed description

With increased life expectancy and decreased physical activity osteoporosis related fractures are increasing day by day which place a huge health economic burden on societies. Since fragility fractures and related disabilities bring about considerable morbidity and even mortality, the main goal in osteoporosis treatment is to prevent fractures.

The facts that bisphosphonates can plateau after 3-4 years in the treatment response and Teriparatide cannot be used for more than 2 years, bring the use of Denosumab to the fore in patients with high fracture risk who need long term treatment. Denosumab is also preferred in patients with renal dysfunction since it is excreted by the reticuloendothelial system and not the kidney. However, there is a dilemma that publications in the literature mostly show that the risk of fracture development returns to a no-treatment status shortly after Denosumab withdrawal.

Therefore, in this study it is aimed to examine whether there is statistically significant difference in terms of the risk of osteoporotic fracture development and other secondary outcome measures between the patient group who discontinued injections for more than 2 months and the patient group who regularly received their injections.

In this study, patients who had commenced Denosumab in Trakya University Osteoporosis Polyclinic between 2015-2021 and had received at least 2 doses will be included. Demographic and clinical data will be retrospectively examined by the Physical Medicine and Rehabilitation physician at last date of follow-up through electronic medical records and patient files. Radiological images of the patients will also be examined whether there is radiological fracture before, under or after the treatment. The number of fractures and their localizations, if any, will be recorded. The number of Denosumab doses administered will be determined by review of the hospital's electronic prescription records. Adherence will be defined as being punctual (with an allowable delay of up to 8 weeks) with the 6 month scheduled doses. In addition, pre-treatment values of BMD as evaluated on dual energy x-ray absorptiometry (DXA), and Fracture Risk Assessment Tool (FRAX) scores will be recorded.

In the light of the data obtained, the parameters affecting compliance and the effect of treatment compliance on the risk of osteoporotic fracture development will be presented to the literature.

Conditions
Osteoporosis
Keywords
Denosumab, Fragility fracture, Rebound fracture, Discontinuation, Osteoporosis
Medical subject headings
Osteoporosis

What is being measured

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

  1. Number of new fragility fractures

    The number of new fragility fractures among Denosumab adherent and non-adherent patient groups as assessed by radiological images

    Measured: Through study completion, an average of 2 years

Secondary outcomes (1)
  1. Denosumab adherence rate and factors that may play a role in Denosumab adherence/non-adherence

    The rate of Denosumab adherence and factors that may play a role in Denosumab adherence/non-adherence as assessed by restrospective examination of patient files which are age, sex, age of menopause, parity, marital status, occupation, height (cm), weight (kg), and body mass index (BMI) (kg/m2), family history of fragility fracture, presence of baseline fragility fractures before initiation of Denosumab treatment, comorbidities, use of steroids, smoking status, presence of secondary osteoporosis, tea/coffee/alcohol consumption status, consumption of dairy products, presence of any therapy before Denosumab, treatment agent before Denosumab, number of received Denosumab injections, duration of Denosumab withdrawal.

    Measured: Through study completion, an average of 2 years

Timeline

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

  1. First posted16 May 2024
  2. Study start1 Oct 2022
  3. Primary completion1 May 2023
  4. Study completion1 Mar 2024

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
Cross-sectional
Enrolment
210 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06414616
Sponsor's protocol ID
2022/343
Status last verified
May 2024
First submitted
6 Dec 2022
Last updated
16 May 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Lyu H, Jundi B, Xu C, Tedeschi SK, Yoshida K, Zhao S, Nigwekar SU, Leder BZ, Solomon DH. Comparison of Denosumab and Bisphosphonates in Patients With Osteoporosis: A Meta-Analysis of Randomized Controlled Trials. J Clin Endocrinol Metab. 2019 May 1;104(5):1753-1765. doi: 10.1210/jc.2018-02236.

    PubMed 30535289
  • Brown JP, Roux C, Torring O, Ho PR, Beck Jensen JE, Gilchrist N, Recknor C, Austin M, Wang A, Grauer A, Wagman RB. Discontinuation of denosumab and associated fracture incidence: analysis from the Fracture Reduction Evaluation of Denosumab in Osteoporosis Every 6 Months (FREEDOM) trial. J Bone Miner Res. 2013 Apr;28(4):746-52. doi: 10.1002/jbmr.1808.

    PubMed 23109251
  • Black DM, Schwartz AV, Ensrud KE, Cauley JA, Levis S, Quandt SA, Satterfield S, Wallace RB, Bauer DC, Palermo L, Wehren LE, Lombardi A, Santora AC, Cummings SR; FLEX Research Group. Effects of continuing or stopping alendronate after 5 years of treatment: the Fracture Intervention Trial Long-term Extension (FLEX): a randomized trial. JAMA. 2006 Dec 27;296(24):2927-38. doi: 10.1001/jama.296.24.2927.

    PubMed 17190893
  • Sosa-Henriquez M, Torregrosa O, Deniz A, Saavedra P, Ortego N, Turrion A, Perez Castrillon JL, Diaz-Curiel M, Gomez-Alonso C, Martinez G, Antonio Blazquez J, Olmos-Martinez JM, Etxebarria I, Caeiro JR, Mora-Pena D. Multiple vertebral fractures after suspension of denosumab. A series of 56 cases. Int J Clin Pract. 2021 Oct;75(10):e14550. doi: 10.1111/ijcp.14550. Epub 2021 Jun 30.

    PubMed 34145944
  • Anastasilakis AD, Evangelatos G, Makras P, Iliopoulos A. Rebound-associated vertebral fractures may occur in sequential time points following denosumab discontinuation: need for prompt treatment re-initiation. Bone Rep. 2020 Apr 22;12:100267. doi: 10.1016/j.bonr.2020.100267. eCollection 2020 Jun.

    PubMed 32373677
  • Aubry-Rozier B, Gonzalez-Rodriguez E, Stoll D, Lamy O. Severe spontaneous vertebral fractures after denosumab discontinuation: three case reports. Osteoporos Int. 2016 May;27(5):1923-5. doi: 10.1007/s00198-015-3380-y. Epub 2015 Oct 28.

    PubMed 26510845
  • Niimi R, Kono T, Nishihara A, Hasegawa M, Kono T, Sudo A. Second rebound-associated vertebral fractures after denosumab discontinuation. Arch Osteoporos. 2020 Jan 2;15(1):7. doi: 10.1007/s11657-019-0676-0.

    PubMed 31898803
  • Fu SH, Wang CY, Hung CC, Lee CC, Yang RS, Huang CC, Farn CJ, Lin WH, Chen HM, Hsiao FY, Lin JW, Li CY. Increased fracture risk after discontinuation of anti-osteoporosis medications among hip fracture patients: A population-based cohort study. J Intern Med. 2021 Dec;290(6):1194-1205. doi: 10.1111/joim.13354. Epub 2021 Aug 2.

    PubMed 34237171
  • Cramer JA, Amonkar MM, Hebborn A, Altman R. Compliance and persistence with bisphosphonate dosing regimens among women with postmenopausal osteoporosis. Curr Med Res Opin. 2005 Sep;21(9):1453-60. doi: 10.1185/030079905X61875.

    PubMed 16197664
  • Chandran M, Hao Y, Kwee AK, Cheen MHH, Chin YA, Ng VYT. Adherence to dosing schedule of denosumab therapy for osteoporosis during COVID-19 lockdown: an electronic medical record and pharmacy claims database study from Asia. Osteoporos Int. 2022 Jan;33(1):251-261. doi: 10.1007/s00198-021-06085-0. Epub 2021 Aug 21.

    PubMed 34417842
  • Siris ES, Harris ST, Rosen CJ, Barr CE, Arvesen JN, Abbott TA, Silverman S. Adherence to bisphosphonate therapy and fracture rates in osteoporotic women: relationship to vertebral and nonvertebral fractures from 2 US claims databases. Mayo Clin Proc. 2006 Aug;81(8):1013-22. doi: 10.4065/81.8.1013.

    PubMed 16901023
  • Black DM, Delmas PD, Eastell R, Reid IR, Boonen S, Cauley JA, Cosman F, Lakatos P, Leung PC, Man Z, Mautalen C, Mesenbrink P, Hu H, Caminis J, Tong K, Rosario-Jansen T, Krasnow J, Hue TF, Sellmeyer D, Eriksen EF, Cummings SR; HORIZON Pivotal Fracture Trial. Once-yearly zoledronic acid for treatment of postmenopausal osteoporosis. N Engl J Med. 2007 May 3;356(18):1809-22. doi: 10.1056/NEJMoa067312.

    PubMed 17476007

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoporosis, run by Trakya University at 1 site in Turkey (Türkiye).

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 3 inclusion and 3 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 16 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 Turkey (Türkiye). 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?

Number of new fragility fractures (time frame: Through study completion, an average of 2 years). 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 NCT06414616, which also lists 12 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 16 May 2024.

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