ArticleBone reports2024
Are bone targeted agents still useful in times of immunotherapy? The SAKK 80/19 BTA pilot study.
Article in Bone reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Integrated management of metastatic spinal tumors: current status and future directions.Medical oncology (Northwood, London, England) · 2025Review
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11 authors.
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Abstract
Background: Patients with bone metastases from solid tumors often have additional treatment with bone targeted agents (BTAs) to avoid symptomatic skeletal events (SSEs) such as clinically significant pathological fracture leading toradiation therapy or surgery to the bone, spinal cord compression, or hypercalcemia. The absolute value of BTA treatment in the era of immunotherapy (IO) is unknown. Methods: Patients with bone metastases treated with immunotherapy within the Alpine Tumor Immunology Registry were compared based on whether they received an additional BTA such as denosumab or zoledronic acid. The primary endpoint was time to first SSE. Continuous data were summarized as median and range, categorical data using frequency counts and percentages. Kaplan-Meier estimates were used to describe and visualize the effect of categorical variables. Results: One hundred and ninety-seven patients with bone metastases and treatment with immunotherapy such as nivolumab (48 %), pembrolizumab (40 %), atezolizumab (12 %), ipilimumab (9 %) and other immunotherapy (5 %) were included. The most frequent tumor types were lung cancer (50 %), malignant melanoma (11 %), renal cell cancer (10 %) and bladder cancer (9 %), respectively. One hundred and twenty-two patients (62 %) received a BTA treatment (91 % denosumab). The median treatment duration of a BTA was 178 days (min: 1 day, max: 2010 days). Out of the 197 patients, 47 (24 %) experienced at least one SSE, 100 (51 %) had bone pain. Ten of the 122 patients (8 %) receiving a BTA developed osteonecrosis of the jaw (ONJ). The percentage of patients without an SSE at fixed time points was higher if treated with a BTA (e.g., at 6 months, 92 % [95 % CI: 84 % - 96 %] versus 88 % [95 % CI: 77 % - 94 %]), but no significant difference in time to first SSE (HR 0.69; 95 % CI 0.34-1.39, log-rank Conclusion: No significant difference in time to first SSE or bone pain was observed between patients who have received a BTA or not when treated with immunotherapy. Based on these retrospective results the indication of BTAs to reduce SSEs in cancer patients under treatment with immunotherapy needs further evaluation.
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