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Incidence and prevention of skeletal-related events in multiple myeloma patients: A population-based real-world experience.

ABSTRACT: Novel treatments in multiple myeloma (MM) could influence the incidence of skeletal-related events (SREs). We aimed to examine the incidence of SRE and the preventive use of osteoclast inhibitors (OIs) in a cohort of MM patients in the era of modern treatment. In this real-world retrospective study, we included 199 patients with a diagnosis of MM between January 1, 2010, and December 31, 2019, with follow-up at St. Olavs University Hospital. Data was extracted from The Myeloma Registry of Central Norway. SREs occurred in 46% of patients at baseline and 55.8% during follow-up. Excluding baseline SREs, the incidence rate was 29 (95% confidence interval: 26-33) per 100 person years. 48% experienced > 1 SRE. The incidence of SREs was highest at baseline followed by a gradual increase in each subsequent line of treatment. The first two years after diagnosis 80% received bisphosphonates (BPs). The proportion of recommended dosage was 46%. Only two cases (1.2%) of symptomatic hypocalcemia and one case (0.6%) of osteonecrosis of the jaw were identified. SREs are still a common problem in an era of novel treatment. Cumulative dosage of BPs was lower than recommended, and treatment with BPs was safe in this population.

SUBMITTER: Rora M

PROVIDER: S-EPMC11327710 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature

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Incidence and prevention of skeletal-related events in multiple myeloma patients: A population-based real-world experience.

Røra Marie M Solberg Margrete Skretting MS Moore Kari Lenita Falck KLF Slørdahl Tobias S TS

EJHaem 20240529 4

Novel treatments in multiple myeloma (MM) could influence the incidence of skeletal-related events (SREs). We aimed to examine the incidence of SRE and the preventive use of osteoclast inhibitors (OIs) in a cohort of MM patients in the era of modern treatment. In this real-world retrospective study, we included 199 patients with a diagnosis of MM between January 1, 2010, and December 31, 2019, with follow-up at St. Olavs University Hospital. Data was extracted from The Myeloma Registry of Centra ...[more]

PMID: 39157600

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Project description:IntroductionAnti-osteoclast treatment with denosumab or zoledronate is known to effectively reduce the need for radiotherapy to bone and other skeletal-related events (SREs) in patients with metastatic castration-resistant prostate cancer (mCRPC). In this study, we analyze primary versus secondary initiation of bone-targeting agents (BTAs) relative to first palliative bone radiotherapy in patients dying of mCRPC.MethodsProvincial administrative databases from Ontario, Canada identified patients with prostate cancer (2007-2018, n = 98 646) who received continuous androgen deprivation therapy (n = 29 453), died of prostate cancer (2013-2018, n = 3864), and received life-prolonging therapy for mCRPC (n = 1850). Variables were collected looking back 3 years from death. Multivariable analysis explored the relationship between clinical variables and BTAs.ResultsOf the 58% (1066/1850) patients with mCRPC who received BTA, only 289 (25.4%) started BTA prior to first palliative bone radiotherapy as primary prevention. Eight hundred and forty-eight (74.6%) patients either never received BTA before death (n = 447) or started BTA only after first bone radiotherapy (n = 401). More patients received denosumab (n = 825, 77%) than zoledronic acid (n = 241, 23%). 51.2% (582/1137) of palliative bone radiotherapy was initiated in the last 12 months of life. Factors associated with the use of BTA included elevated alkaline phosphatase (OR = 1.0, P = .023), de novo metastases (OR = 1.4, P = .005), medical oncologist involvement (OR = 2.0, P = .007), diagnosis 2012-2017 versus 2007-2011 (OR = 0.75, P = .034), and academic center (OR = 0.061, P = .007).ConclusionA majority of patients with mCRPC never receive BTAs prior to first SRE, despite universal access and availability of these agents in Ontario. These results highlight an opportunity to improve outcomes by emphasizing early introduction of BTA in patients with mCRPC being started on systemic therapy.

Dataset Information

Incidence and prevention of skeletal-related events in multiple myeloma patients: A population-based real-world experience.

Publications

Incidence and prevention of skeletal-related events in multiple myeloma patients: A population-based real-world experience.

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