Denosumab is a monoclonal antibody that has been widely used for the prevention of skeletal-related events in patients with cancer with solid tumours and bone metastases, and acts by reducing the release of calcium from bones into the bloodstream. Severe hypocalcaemia is a rare and dangerous side effect of denosumab. We present a case of a patient with metastatic prostate cancer who developed severe hypocalcaemia after receiving a single dose of denosumab. Further laboratory analysis showed that the patient had a low vitamin D level, which contributed to the development of hypocalcaemia. He required an inpatient admission for repeated doses of intravenous calcium.
- Cancer - See Oncology
- Cancer Intervention
- Prostate Cancer
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Contributors Concept: KW, HA and RG. Review of articles: RG. Case presentation: KW and HA. Discussion: HA and KW. Draft revision: RG.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent Obtained.
Provenance and peer review Not commissioned; externally peer reviewed.
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