The low and disproportionate utilization of antiresorptive therapy in patients with osseous metastasis

Autor: Amil R. Agarwal, Christa L. LiBrizzi, Lauren Wessel, Savyasachi C. Thakkar, Adam S. Levin
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Bone Oncology, Vol 43, Iss , Pp 100507- (2023)
Druh dokumentu: article
ISSN: 2212-1374
DOI: 10.1016/j.jbo.2023.100507
Popis: Introduction: Antiresorptive therapies are commonly utilized to mitigate and prevent skeletal-related-events in patients with metastatic osseous disease. However, limited data exists on the incidence or factors associated with prescription of antiresorptives or their effects on the incidence of pathologic fractures in patients with osseous metastatic disease. The aims of this study were to determine 1) the proportion of patients with osseous metastasis who receive antiresorptive therapy and sustain a pathologic fracture within 2-years of a new diagnosis, 2) factors associated with sustaining a pathologic fracture, and 3) factors are associated with the likelihood of receiving antiresorptive therapy. Methods: Between January 2010 and October 2021, 1,492,301 patients with a new diagnosis of osseous metastasis were captured in the Mariner dataset of the PearlDiver database. Patients were identified using International Classification of Disease (ICD) 10 codes for osseous metastasis. We excluded patients with a prior diagnosis of osseous metastasis and if they had less than two-years of follow-up. There were 696,459 patients (46.7 %) included for analysis. Of these patients, 63 % (N = 437,716) were over the age of 65, 46 % were women, and 5.6 % had Medicaid insurance. We identified patients who were prescribed antiresorptive therapy within 2-years of a new diagnosis of osseous metastasis. Cox proportional hazard ratio models were created to predict factors associated with 1) pathologic fracture and 2) receiving antiresorptive therapy within 2-years of a new diagnosis of osseous metastasis, respectively. Results: The incidence of antiresorptive therapy prescription was 7.7 % in our cohort. The incidence of pathologic fracture within 2-years of a new diagnosis was 7.3 %. The risk of sustaining a pathologic fracture was higher for patients aged 35–44 (HR 1.27 [95 % CI 1.08–1.51]; p = 0.004), those with primary kidney cancer (HR 1.78 [95 % CI 1.71–1.85]; p
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