Lifirafenib (BGB-283 or BEIGENE-283), a dual inhibitor targeting BRAF kinase and EGFR, was studied for the treatment of different cancer types harboring mutations in BRAF, KRAS, and NRAS. Lifirafenib participates in Phase II clinical trial in combination with PD-0325901 to treat the patients with solid tumor.

PG-545 is a heparan sulfate (HS) mimetic that inhibits tumour angiogenesis by sequestering angiogenic growth factors in the extracellular matrix (ECM), thus limiting subsequent binding to receptors. Importantly, PG-545 also inhibits heparanase, the only endoglycosidase which cleaves HS chains in the ECM. The anti- respiratory syncytial virus (RSV) activity of PG-545 was due to both partial inhibition of the virus attachment to cells and a more profound interference with some post-attachment steps as PG-545 efficiently neutralized infectivity of the cell-adsorbed virus. The anti-RSV activity of PG-545 was reduced when tested in the presence of human nasal secretions. Serial passages of RSV in the presence of increasing concentrations of PG-545 selected for weakly resistant viral variants that comprised the F168S and the P180S amino acid substitutions in the viral G protein. PG-545 has an immunomodulatory properties. PG-545 stimulates innate immune responses against tumours in preclinical cancer models. PG-545 is in phase I clinical trial for the treatment of pancreatic cancer.