Initial in vivo testing of a multitarget kinase inhibitor, regorafenib, by the Pediatric Preclinical Testing Consortium.

ABSTRACT:

Background

Regorafenib is a small molecule multikinase inhibitor that inhibits multiple kinases including BRAF, KIT, PDGFRB, RAF, RET, and VEGFR1-3.

Procedures

The in vivo anticancer effects of regorafenib were assessed in a panel of six osteosarcoma models, three rhabdomyosarcoma models, and one Ewing sarcoma model.

Results

Regorafenib induced modest inhibition of tumor growth in the models evaluated.

Conclusion

The overall pattern of response to regorafenib appears similar to that of the kinase inhibitor sorafenib, with pronounced slowing of tumor growth in some models, limited to the period of agent administration, being the primary treatment effect.

SUBMITTER: Harrison DJ 

PROVIDER: S-EPMC8670258 | biostudies-literature |

REPOSITORIES: biostudies-literature