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Updated: May 21, 2026

A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing (Neo)adjuvant Therapies
Published on: July 28, 2020
Pazopanib in the treatment of soft tissue sarcoma
1Department of General Medical Oncology & Laboratory of Experimental Oncology, University Hospitals Leuven, Leuven Cancer Institute, Catholic University Leuven, Leuven, Belgium. patrick.schoffski@uzleuven.be
Abstract:
Patients with advanced metastatic soft tissue sarcoma (STS) have a poor prognosis, and in the last two decades of the 20th century their overall survival has remained unchanged. Improved treatments are needed for these patients and for preventing metastases in earlier stages of disease. Numerous novel agents and new combination regimens are undergoing clinical testing in STS. Some of these agents show promising activity. Pazopanib is one such agent that has undergone Phase II and III evaluations in advanced STS. Pazopanib is a multi-tyrosine kinase inhibitor, blocking various signaling pathways, thereby preventing angiogenesis and metastasis, and inhibiting tumor cell growth and survival. In a Phase II study, pazopanib demonstrated activity in patients with advanced leiomyosarcomas, synovial sarcomas and other eligible STSs. This activity was confirmed in a Phase III trial, where pazopanib significantly extended the median progression-free survival versus placebo in a variety of STS subtypes.
Insights
Pazopanib, a novel multi-tyrosine kinase inhibitor, shows promise for advanced soft tissue sarcoma (STS) patients. Clinical trials demonstrate pazopanib significantly improves progression-free survival in various STS subtypes.
Area of Science:
- Oncology
- Pharmacology
Background:
- Advanced metastatic soft tissue sarcoma (STS) presents a poor prognosis with limited survival improvements over recent decades.
- There is a critical need for novel therapeutic strategies to improve outcomes and prevent metastasis in STS patients.
Purpose of the Study:
- To evaluate the efficacy and safety of pazopanib in patients with advanced metastatic soft tissue sarcoma.
- To assess pazopanib's impact on progression-free survival and tumor growth in diverse STS subtypes.
Main Methods:
- Phase II and III clinical trials were conducted to assess pazopanib's activity in advanced STS.
- Pazopanib, a multi-tyrosine kinase inhibitor, was administered to patients with various STS subtypes.
Main Results:
- Pazopanib demonstrated significant activity in Phase II studies across leiomyosarcomas, synovial sarcomas, and other eligible STS.
- A Phase III trial confirmed pazopanib's efficacy, showing a significant extension in median progression-free survival compared to placebo in multiple STS subtypes.
Conclusions:
- Pazopanib is an active agent for advanced soft tissue sarcoma, offering a new treatment option.
- The findings support pazopanib's role in improving progression-free survival for patients with advanced STS.
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