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Review
. 2023 Jun 16;108(7):1787-1796.
doi: 10.1210/clinem/dgad035.

Approach to the Patient: Pharmacological Therapies for Fracture Risk Reduction in Adults With Osteogenesis Imperfecta

Winnie Liu  1 , Brendan Lee  2   3 , Sandesh C S Nagamani  2   3 , Lindsey Nicol  4 , Frank Rauch  5 , Eric T Rush  6 , V Reid Sutton  2   3 , Eric Orwoll  1
Affiliations
Review

Approach to the Patient: Pharmacological Therapies for Fracture Risk Reduction in Adults With Osteogenesis Imperfecta

Winnie Liu et al. J Clin Endocrinol Metab. .

Abstract

Context: Osteogenesis imperfecta (OI) is a genetic disorder characterized by increased bone fragility largely caused by defects in structure, synthesis, or post-translational processing of type I collagen. The effectiveness of medications used for fracture reduction in adults with OI is understudied and practice recommendations are not well established. Drugs currently used to improve skeletal health in OI were initially developed to treat osteoporosis. Oral and intravenous bisphosphonates have been shown to improve bone mineral density (BMD) in adults with OI and are commonly used; however, conclusive data confirming fracture protection are lacking. Similarly, teriparatide appears to increase BMD, an effect that seems to be limited to individuals with type I OI. The role of denosumab, abaloparatide, romosozumab, and estradiol/testosterone in adult OI have not been systematically studied. Anti-sclerostin agents and transforming growth factor-beta antagonists are under investigation in clinical trials.

Objective: This review summarizes current knowledge on pharmacologic treatment options for reducing fracture risk in adults with OI.

Methods: A PubMed online database search of all study types published in the English language using the terms "osteogenesis imperfecta," "OI," and "brittle bone disease" was performed in June 2022. Articles screened were restricted to adults. Additional sources were identified through manual searches of reference lists.

Conclusion: Fracture rates are elevated in adults with OI. Although clinical trial data are limited, bisphosphonates and teriparatide may be useful in improving BMD. Further research is needed to develop medications for adults with OI that will lead to definite fracture rate reduction.

Keywords: abaloparatide; bisphosphonate; bone mineral density; brittle bone disease; denosumab; fractures; osteogenesis imperfecta; rare bone disease; romosozumab; teriparatide.

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References

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