Original Research
7 January 2025

Cardiovascular Safety and Fracture Prevention Effectiveness of Denosumab Versus Oral Bisphosphonates in Patients Receiving Dialysis: A Target Trial Emulation

Publication: Annals of Internal Medicine
Visual Abstract. Cardiovascular Safety and Fracture Prevention Effectiveness of Denosumab Versus Oral Bisphosphonates in Patients Receiving Dialysis Dialysis patients have high rates of fracture morbidity, but bisphosphonates are often avoided because of renal toxicity. The authors emulated a target trial using a Japanese administrative claims database to compare denosumab and oral bisphosphonates for fracture prevention and cardiovascular events in dialysis-dependent patients.
Visual Abstract. Cardiovascular Safety and Fracture Prevention Effectiveness of Denosumab Versus Oral Bisphosphonates in Patients Receiving Dialysis
Dialysis patients have high rates of fracture morbidity, but bisphosphonates are often avoided because of renal toxicity. The authors emulated a target trial using a Japanese administrative claims database to compare denosumab and oral bisphosphonates for fracture prevention and cardiovascular events in dialysis-dependent patients.

Abstract

Background:

Dialysis patients have high rates of fracture morbidity, but evidence on optimal management strategies for osteoporosis is scarce.

Objective:

To determine the risk for cardiovascular events and fracture prevention effects with denosumab compared with oral bisphosphonates in dialysis-dependent patients.

Design:

An observational study that attempts to emulate a target trial.

Setting:

A Japanese administrative claims database (April 2014 to October 2022).

Patients:

Adults aged 50 years or older who have initiated denosumab or oral bisphosphonates for osteoporosis in dialysis-dependent patients.

Measurements:

The safety outcome was major adverse cardiac events (MACE). The effectiveness outcome was a composite of all fractures. Follow-up was 3 years.

Results:

A total of 1032 patients were identified (658 denosumab users and 374 oral bisphosphonate users). Overall average age was 74.5 years, and 62.9% were women. The weighted 3-year risk difference for MACE was 8.2% (95% CI, –0.2% to 16.7%), with a weighted 3-year risk ratio of 1.36 (CI, 0.99 to 1.87). The weighted 3-year risk difference for composite fractures was –5.3% (CI, –11.3% to –0.6%), and the weighted 3-year risk ratio was 0.55 (CI, 0.28 to 0.93).

Limitations:

Lack of clinical data on kidney or osteoporosis disease severity and cardiovascular or other metabolic risk with residual confounding. Safety outcomes did not include kidney end points.

Conclusion:

It was estimated that, compared with oral bisphosphonates, denosumab lowered the risk for fractures by 45% and increased the risk for MACE by 36%. The estimates, however, are imprecise and need to be confirmed in future studies.

Primary Funding Source:

None.

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Supplementary Material

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Information & Authors

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Published In

cover image Annals of Internal Medicine
Annals of Internal Medicine

History

Published online: 7 January 2025

Keywords

Authors

Affiliations

Soichiro Masuda, MD, PhD
Department of Orthopedic Surgery, Kyoto City Hospital, and Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan (S.Masuda)
Department of Pharmacoepidemiology and Department of Digital Health and Epidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan (T.F.)
Shuichi Matsuda, MD, PhD https://orcid.org/0000-0003-0802-1255
Department of Orthopedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan (S.Matsuda)
Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan (K.K.).
Acknowledgment: The authors thank DeSC Healthcare for providing the health insurance claims data and Guy Harris, DO, of Dmed (dmed.co.jp) for his support with the writing of the manuscript.
Disclosures: Disclosure forms are available with the article online.
Reproducible Research Statement: Study protocol: Not available. Statistical code: Available to interested readers by contacting Dr. Kawakami (e-mail, [email protected]). Data set: Not available.
Corresponding Author: Koji Kawakami, MD, PhD, Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto 606-8501, Japan; e-mail, [email protected].
Author Contributions: Conception and design: S. Masuda, T. Fukasawa, K. Kawakami.
Analysis and interpretation of the data: S. Masuda, T. Fukasawa.
Drafting of the article: S. Masuda.
Critical revision for important intellectual content: S. Masuda, T. Fukasawa, K. Kawakami.
Final approval of the article: S. Masuda, T. Fukasawa, S. Matsuda, K. Kawakami.
Statistical expertise: T. Fukasawa.
Administrative, technical, or logistic support: S. Masuda, T. Fukasawa, S. Matsuda.
Collection and assembly of data: T. Fukasawa.
This article was published at Annals.org on 7 January 2025.

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Soichiro Masuda, Toshiki Fukasawa, Shuichi Matsuda, et al. Cardiovascular Safety and Fracture Prevention Effectiveness of Denosumab Versus Oral Bisphosphonates in Patients Receiving Dialysis: A Target Trial Emulation. Ann Intern Med. [Epub 7 January 2025]. doi:10.7326/ANNALS-24-03237

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