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Related Experiment Video

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Author Spotlight: Replicating Human Osteosarcoma Progression in Immunodeficient Mice for Cancer Study

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Response to Pazopanib in Patients With Relapsed Osteosarcoma.

Kunal R Elete¹, Karen H Albritton², Lauren J Akers²

¹University of North Texas Health Science Center, Texas College of Osteopathic Medicine.

Journal of Pediatric Hematology/Oncology

|December 12, 2018

Summary

Osteosarcoma relapse affects 50% of patients. Pazopanib, a multi-tyrosine kinase inhibitor, showed varied outcomes in two patients, with one responding well and another experiencing toxicity.

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Area of Science:

Oncology
Pharmacology

Background:

Osteosarcoma is a primary bone cancer with poor prognosis linked to axial skeleton involvement, metastasis, incomplete resection, and low tumor necrosis.
Relapse occurs in 50% of osteosarcoma patients within 18 months, necessitating multimodal treatment including surgery, chemotherapy, and targeted therapies.

Observation:

This study reports on two osteosarcoma patients treated with pazopanib, a multi-tyrosine kinase inhibitor approved for renal cell carcinoma and soft tissue sarcomas.
Pazopanib's efficacy and tolerability were assessed in the context of recurrent or metastatic osteosarcoma.

Findings:

One patient achieved a positive response to pazopanib and continues treatment.
The second patient experienced gastrointestinal toxicity, leading to drug discontinuation, despite achieving stable disease.

Implications:

Pazopanib demonstrates potential as a targeted therapy for osteosarcoma, warranting further investigation.
Individual patient response and toxicity profiles highlight the need for personalized treatment strategies in osteosarcoma management.