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Lifirafenib (BGB-283) is a novel potent and selective RAF Kinase and EGFR inhibitor with IC50 values of 23, 29 and 495 nM for the recombinant BRAFV600E kinase domain, EGFR and EGFR T790M/L858R mutant. In BRAFV600E colorectal cancer cell lines, BGB-283 effectively inhibits the reactivation of EGFR and EGFR-mediated cell proliferation. BGB-283 inhibits the EGF-induced EGFR autophosphorylation on Tyr1068 in A431 cells in a dose-dependent manner.
In vivo, BGB-283 treatment leads to dose-dependent tumor growth inhibition accompanied by partial and complete tumor regressions in both cell-line derived and primary human colorectal tumor xenografts bearing B-RAFV600E mutation.
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
| Molecular Weight | 478.42 |
| Formula | C25H17F3N4O3 |
| CAS Number | 1446090-79-4 |
| Purity | >98.5% |
| Solubility | DMSO 90 mg/mL |
| Storage | at -20°C |
| Related Raf Products |
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LY3009120 (DP-4978) is a pan RAF inhibitor which inhibits BRAFV600E, BRAFWT and CRAFWT with IC50s of 5.8, 9.1 and 15 nM, respectively. |
| AZ304
AZ304 is a potent dual BRAF inhibitor targeting the kinase domains of wild type BRAF, V600E mutant BRAF with IC50 values of 79 nM and 38 nM respectively. |
| BI 882370
BI 882370 is a highly potent and selective RAF inhibitor that binds to the DFG-out (inactive) conformation of the BRAF kinase. |
| Naporafenib
Naporafenib (also known as LXH254) is an orally available inhibitor of C-Raf and B-Raf with potential antineoplastic activity. |
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B-Raf inhibitor 1 is a potent and selective B-Raf inhibitor with cell IC50s of 0.31 µM and 2 nM for A375 proliferation and A375 p-ERK, respectively. |
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