RAS/RAS-RAF-IN-1 is a potent RAS and RAS-RAF inhibitor. RAS/RAS-RAF-IN-1 has a KD of 5.0 μμ-15 μμ for cyclophilin A (CYPA) binding affinity. RAS/RAS-RAF-IN-1 has antitumor activity[1].
RAS/RAS-RAF-IN-1 (compound 89; for 4 hours) has an EC50 of 0.5 μμ-5.0 μμ for BRAF-GTP-KRAS-G12C disruption and has an IC50 of 1.0 μμ-10 μμ for pERK inhibition in H358 cells[1].
[1]. Meizhong Jin, et al. Compounds that participate in cooperative binding and uses thereof. WO2020132597A1.
Rineterkib hydrochloride (compound B) is an orally active RAF and ERK1/2 inhibitor in the treatment of a proliferative disease characterized by activating mutations in the MAPK pathway. The activity is particularly related to the treatment of KRAS-mutant NSCLC, BRAF-mutant NSCLC, KRAS-mutant pancreatic cancer, KRAS-mutant colorectal cancer (CRC) and KRAS-mutant ovarian cancer[1].
ERK-IN-1 (compound B) (50, 75 mg/kg, p.o., qd/q2d, 27 days) treatment significantly reduces the tumor volume in the Calu-6 human NSCLC subcutaneous tumor xenograft model in mice[1].
[1]. CAPONIGRO, et al. THERAPEUTIC COMBINATIONS COMPRISING A RAF INHIBITOR AND A ERK INHIBITOR. WO2018051306A1.