DBPR807 can significantly suppress tumor growth, prevent distant metastasis, reduce angiogenesis, normalize tumor microenvironment and promote cytotoxic T-cell infiltration. In various HCC models, DBPR807 itself can prolong overall survival as effectively as marketed anti-angiogenic agent sorafenib and immune checkpoint inhibitor anti-PD-1 Ab. What’s more, its combination therapy with either sorafenib or anti-PD-1 Ab can extend life expectancy even more significantly than aforementioned monotherapy.

We have identified a series of BPR1R compounds as highly selective CSF1R inhibitors with excellent oral bioavailability. In vivo, oral administration of BPR1R compounds delayed murine colon tumor growthreversed the immunosuppressive TME with increased M1/M2 ratio. The US & PCT patent application including more than 160 novel compounds was filed in April 20, 2020. Several potential compounds are undergoing candidate assessment for further preclinical studies.