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Open Access 01-01-2012 | Original Article

Infections in postmenopausal women with osteoporosis treated with denosumab or placebo: coincidence or causal association?

Authors: N. B. Watts, C. Roux, J. F. Modlin, J. P. Brown, A. Daniels, S. Jackson, S. Smith, D. J. Zack, L. Zhou, A. Grauer, S. Ferrari

Published in: Osteoporosis International | Issue 1/2012

Abstract

Summary

Serious adverse events of infections that occurred in subjects receiving denosumab or placebo in the Fracture Reduction Evaluation of Denosumab in Osteoporosis every 6 Months (FREEDOM) study were examined in detail. Serious adverse events of infections in denosumab subjects had heterogeneous etiology, with no clear clinical pattern to suggest a relationship to time or duration of exposure to denosumab.

Introduction

Denosumab reduces the risk for new vertebral, hip, and nonvertebral fractures compared with placebo. In the pivotal phase 3 fracture trial (FREEDOM), the overall safety profile and incidence of adverse events including adverse events of infections were similar between groups. Serious adverse events of erysipelas and cellulitis were more frequent in denosumab-treated subjects. In this report, we further evaluate the details of infectious events in FREEDOM to better understand if RANKL inhibition with denosumab influences infection risk.

Methods

FREEDOM was an international multicenter, randomized, double-blind, placebo-controlled study in postmenopausal women with osteoporosis randomly assigned to receive placebo (n = 3,906) or denosumab 60 mg every 6 months (n = 3,902). The incidence of adverse events and serious adverse events categorized within the Medical Dictionary for Regulatory Activities system organ class, “Infections and Infestations,” was compared between the placebo and denosumab groups by body systems and preferred terms. The temporal relationship between occurrence of serious adverse events of infections of interest and administration of denosumab was explored.

Results

Serious adverse events of infections involving the gastrointestinal system, renal and urinary system, ear, and endocarditis were numerically higher in the denosumab group compared with placebo, but the number of events was small. No relationship was observed between serious adverse events of infections and timing of administration or duration of exposure to denosumab.

Conclusions

Serious adverse events of infections that occurred with denosumab treatment had heterogeneous etiology, with no clear clinical pattern to suggest a relationship to time or duration of exposure to denosumab.

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Title: Infections in postmenopausal women with osteoporosis treated with denosumab or placebo: coincidence or causal association?
Authors: N. B. Watts
C. Roux
J. F. Modlin
J. P. Brown
A. Daniels
S. Jackson
S. Smith
D. J. Zack
L. Zhou
A. Grauer
S. Ferrari
Publication date: 01-01-2012
Publisher: Springer-Verlag
Published in: Osteoporosis International / Issue 1/2012
Print ISSN: 0937-941X
Electronic ISSN: 1433-2965
DOI: https://doi.org/10.1007/s00198-011-1755-2

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Infections in postmenopausal women with osteoporosis treated with denosumab or placebo: coincidence or causal association?

Abstract

Summary

Introduction

Methods

Results

Conclusions

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Summary

Introduction

Methods

Results

Conclusions

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