Targeted therapy options for chondrosarcoma - a preclinical perspective

The second most frequent malignant tumor of the bone after osteosarcoma, chondrosarcoma is subdivided in conventional type, mesenchymal, clear cell, and the dedifferentiated subtype. Each of these pathological entities has a particular clinical behavior. For most, surgery remains the sole valid option. However, efficient systemic therapy options for advanced and metastatic cases are scarce. This short review is aimed at describing the latest options presented by current literature in these cases. Most of the data is derived from preclinical trials, but some drugs were also included in clinical research as far as phase two trials. After reviewing this data, it could be concluded that the future in unresectable or metastatic chondrosarcoma is personalized medicine and that more specific biomarkers to aid the choice are necessary.