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Clinical Features Associated With Outcomes in Lung Cancer Patients Treated With Denosumab
Summary
Denosumab significantly reduced mortality and skeletal-related events (SREs) in lung cancer patients with bone metastases. This study highlights denosumab
Area of Science:
- Oncology
- Pharmacology
- Clinical Research
Background:
- Lung cancer frequently metastasizes to bone, leading to skeletal-related events (SREs) and increased mortality.
- Denosumab, a monoclonal antibody, targets the RANKL pathway to inhibit osteoclast activity and reduce bone resorption.
- The clinical benefit of denosumab in reducing SREs and improving survival in various cancers with bone metastases is increasingly recognized.
Purpose of the Study:
- To evaluate the association between denosumab use and 2-year all-cause mortality in patients with lung cancer and bone metastases.
- To assess the impact of denosumab on the incidence of skeletal-related events (SREs) in this patient population.
- To provide real-world evidence on the efficacy of denosumab in managing bone metastases in lung cancer.
Main Methods:
- Retrospective cohort study utilizing international electronic health records from the TriNetX database (2010-2020).
- Inclusion of 52,521 eligible patients with lung cancer and bone metastases, divided into denosumab and control groups.
- Propensity score matching (PSM) was applied to balance baseline characteristics, resulting in 2735 patients per group for analysis of mortality and SREs.
Main Results:
- Denosumab use was associated with significantly lower 2-year all-cause mortality (53.8% vs 55.1%; HR, 0.74; P < .001).
- Patients receiving denosumab experienced a longer median survival (467 vs 292 days) and higher survival probability (P < .001).
- A significant reduction in the risk of incident SREs was observed in the denosumab group (HR, 0.42; P < .001), including fractures and need for radiation therapy to bone.
Conclusions:
- Denosumab treatment is associated with improved survival and a reduced incidence of SREs in patients with lung cancer and bone metastases.
- These findings support the use of denosumab as a beneficial therapeutic option for managing bone metastases in this patient cohort.
- The study adds robust evidence to the existing data supporting the clinical utility of denosumab in oncology practice.
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