XL281
XL281 Uses, Dosage, Side Effects, Food Interaction and all others data.
XL281 is a novel anticancer compound designed to potently inhibit the RAS/RAF/MEK/ERK signaling pathway. Mutational activation of RAS occurs in about 30 percent of all human tumors, including non-small cell lung, pancreatic, and colon cancer. XL281 is a specific inhibitor of RAF kinases, including the mutant form of B-RAF, which is activated in 60 percent of melanomas, 24-44 percent of thyroid cancers, and 9 percent of colon cancers.
| Trade Name | XL281 |
| Generic | XL281 |
| Type | |
| Groups | Investigational |
| Therapeutic Class | |
| Manufacturer | |
| Available Country | |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Investigated for use/treatment in solid tumors.
How XL281 works
XL281 is a novel small molecule drug designed to specifically inhibit RAF kinases, which lie immediately downstream of RAS and are key components of the RAS/RAF/MEK/ERK kinase signaling pathway. Genetic lesions that activate this pathway are common in human tumors, with activating mutations in K-Ras occurring in 30 percent of tumors and activating mutations in B-RAF occurring in approximately 60 percent of melanomas. The RAS/RAF/MEK/ERK pathway also plays a key role in the transmission of growth-promoting signals downstream of receptor tyrosine kinases. This suggests that deregulation of this pathway plays a pivotal role in the progression of many human tumors, and that inhibition of the pathway may provide clinical benefit in the treatment of cancer. In preclinical studies, XL281 showed potent inhibition of B-RAF, mutationally activated B-RAF and C-RAF, and did not interact with kinases outside of the RAF family. XL281 displays high oral bioavailability and strongly inhibits RAS/RAF/MEK/ERK signaling in human tumor models.
Innovators Monograph
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