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Efficacy of Denosumab Treatment in Bisphosphonate Unresponsive Patients

Efficacy and Safety of Denosumab Treatment in Bisphosphonate Unresponsive Postmenopausal Osteoporotic

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04702204
Enrollment
73
Registered
2021-01-08
Start date
2020-07-01
Completion date
2021-08-15
Last updated
2021-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postmenopausal Osteoporosis

Brief summary

This study, which was designed as a prospective observational study, was planned to enroll 75 female patients with postmenopausal osteoporosis who had been using bisphosphonates for more than two years and did not respond to treatment. 2 doses of denosumab were administered to the patients every 6 months. Bone mineral density of patients were measured with DEXA at the beginning and end of the study. A total of 66 patients completed the study. At the end of the study, there was a significant improvement in the femur and lumbar total bone mineral density of the patients compared to the baseline. However, no statistically significant difference was found in terms of the frequency of new fractures.

Interventions

Denosumab, another antiresorptive agent, is a fully human monoclonal IgG2 antibody that binds to the receptor activator of the nuclear factor-kB ligand (RANKL) with high specificity and affinity. Denosumab inhibits bone resorption by affecting the development, activation, and survival of osteoclasts. Denosumab 60 mg subcutaneously was administered to the patients whose consent forms were obtained, once every 6 months.

Sponsors

Nigde Omer Halisdemir University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
45 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Being a woman with postmenopausal osteoporosis * Being between the ages of 45-85 * Using bisphosphonate therapy for at least two years * Vertebral and/or Femur T score below -2.5 * Unresponsive to bisphosphonate therapy * More than 2% decrease in BMD values despite using bisphosphonates and/or * New major fracture development during treatment

Exclusion criteria

* Male gender * Being extremely thin (BMI \<15) or extremely obese (BMI\> 45) * Malignancy * Severe chronic liver and kidney failure * Chronic Steroid use * Having an active rheumatic disease * Having other secondary causes of osteoporosis (primary hyperparathyroidism etc.).

Design outcomes

Primary

MeasureTime frameDescription
Bone mineral density12 monthFemur and spine bone mineral density measurements of the patients at the baseline and the 12th month were performed using the Dual Energy X-ray Absorptiometry (DEXA) machine (Stratos dR 2D Fan-Beam, DMS company, France).

Secondary

MeasureTime frameDescription
Major Bone Fracture12 monthnumber of newly developed vertebral and femur fractures during follow-up

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026