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Response to erlotinib in a patient with treatment refractory chordoma
Nimit Singhal1, Dusan Kotasek, Francis X Parnis
1Adelaide Cancer Centre, Ashford, South Australia, Australia. nimit.singhal@health.sa.gov.au
Abstract:
Chordomas are rare tumors arising from the axial skeleton. The disease is characterized by slow local growth, frequent local recurrences, and rare systemic spread. Surgery and local radiation remains the mainstay of treatment with minimal role of systemic therapy. Imatinib has been shown to be active in a phase II trial with symptomatic and radiological responses. We report a case where treatment with erlotinib, an epidermal growth factor receptor tyrosine kinase inhibitor, induced symptomatic and radiological response in a patient with disease refractory to imatinib and vascular disrupting agent.
Insights
Erlotinib showed effectiveness in treating chordoma, a rare axial skeleton tumor, particularly in cases resistant to imatinib. This finding offers a new therapeutic option for patients with advanced chordoma.
Area of Science:
- Oncology
- Medical Research
Background:
- Chordomas are rare tumors originating from the axial skeleton, known for slow growth, local recurrence, and infrequent metastasis.
- Current treatment primarily involves surgery and radiation, with limited success for systemic therapies.
Observation:
- A patient with chordoma refractory to imatinib and vascular disrupting agents was treated with erlotinib.
- Erlotinib is an epidermal growth factor receptor tyrosine kinase inhibitor.
Findings:
- The patient exhibited symptomatic and radiological responses to erlotinib treatment.
- This suggests erlotinib's potential efficacy in imatinib-refractory chordoma cases.
Implications:
- Erlotinib may represent a viable treatment alternative for advanced or refractory chordoma.
- Further research is warranted to explore tyrosine kinase inhibitors in chordoma treatment regimens.
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