FGFR2 x RET x c-Kit x PDGFRβ x PDGFRα x FGFR1 x CSF-1R x FRK x BRAF x Tie-2 x DDR2 x VEGFR2 x CRAF x TRKA x VEGFR1 x BRAF V600E x EphA2 x Abl family x MAPK11 x VEGFR3

The focus of this study will be to investigate whether Regorafenib demonstrates antitumor activity against recurrent grade II or III meningiomas.
Small trials and case series suggest clinical relevant activity of several VEGF inhibitors such as sunitinib, bevacizumab and valatinib reporting a 6m-PFS rate of 42-64%. Indeed, VEGF and VEGF receptors (VEGFR) are regularly overexpressed in meningiomas and can correlate with outcome.
Regorafenib inhibits angiogenic receptor tyrosine kinases (RTKs) and is highly selective for VEGFR1/2/3; moreover Regorafenib inhibits PDGFRB, FGFR1 and oncogenic intracellular signalling cascades involving c-RAF/RAF1 and BRAF highly expressed in meningiomas.
Noteworthy, Regorafenib showed antitumor activity in vitro and in vivo in a recent study; indeed, Regorafenib showed significant inhibition of meningioma cell motility and invasion and in vivo, mice with orthotopic meningioma xenografts showed a reduced volume of signal enhancement in MRI following Regorafenib therapy; this translated in a significantly increased overall survival time (p<0.05) for Regorafenib treated mice.
Moreover, Regorafenib showed good efficacy in different cancer types, such as colorectal cancer, GIST, hepatocellular carcinoma and glioblastoma (REGOMA trial) , maintainingmaintaining a good quality of life.

To learn if regorafenib can help to control the disease.

For patients with advanced liver cancer who have progressed after first-line targeted and immunotherapy , there is currently no standard treatment regimen for second-line therapy. this study aims to explore the efficacy and safety of HAIC combined with PD-L1 and Regorafenib in patients with advanced liver cancer who have failed immunotherapy, not only providing new treatment options for second-line therapy of liver cancer, but also laying the foundation for research on the combination of HAIC and PD-L1 inhibitors plus Regorafenib, which has significant scientific research significance and clinical value.