Pemigatinib (Standard)

Chemical Information
Pemigatinib is a small molecule kinase inhibitor with antitumour activity. It works by inhibiting fibroblast growth factor receptors (FGFRs), which are receptor tyrosine kinases that activate signalling pathways in tumour cells. FGFRs gained attention as potential therapeutic targets in selected cancers, as FGFR gene alterations were observed in a wide variety of cancers including those of the urinary bladder, breast, ovary, prostate, endometrium, lung, and stomach. Deregulated FGFR signalling pathway can lead the development of oncogenes and tumour-promoting physiological processes, such as cancer cell proliferation, enhanced angiogenesis, and evasion of cell death. In April 2020, pemigatinib was approved by the FDA for the treatment of unresectable locally advanced or metastatic cholangiocarcinoma in previously treated adult patients with a fibroblast growth factor receptor 2 (FGFR2) gene fusion or other rearrangements as detected by an FDA-approved test. Cholangiocarcinoma is the most common primary malignancy affecting the biliary tract and the second most common primary hepatic malignancy. This malignancy accounts for 15% to 20% of primary hepatobiliary malignancies, which account for 13% of overall cancer-related global mortality. With increasing research on the pathogenesis of cholangiocarcinoma and potential therapeutic targets for anticancer drug treatment, recent studies show that up to 45% of patients with intrahepatic cholangiocarcinoma exhibited gene rearrangements resulting in oncogenic fibroblast growth factor 2 (FGFR2) fusion proteins. The FDA-approved indication for pemigatinib was granted under accelerated approval based on the overall response rate and duration of response in pre-marketing clinical trials. Pemigatinib is marketed under the brand name Pemazyre, and it is available as oral tablets.
| CAS Number | 1513857-77-6 |
| PubChem CID | 86705695 |
| IUPAC Name | 11-(2,6-difluoro-3,5-dimethoxyphenyl)-13-ethyl-4-(morpholin-4-ylmethyl)-5,7,11,13-tetrazatricyclo[7.4.0.02,6]trideca-1,3,6,8-tetraen-12-one |
| Molecular Formula | C24H27F2N5O4 |
| Molecular Weight | 487.5 |
| XLogP | 1.8 |
| Topological Polar Surface Area | 83.2 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 6 |
| Heavy Atom Count | 35 |
| Formal Charge | 0 |
| Complexity | 731 |
| Property | Value |
|---|---|
| Molecular Weight | 487.5 |
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 6 |
| Exact Mass | 487.20311068 |
| Monoisotopic Mass | 487.20311068 |
| Topological Polar Surface Area | 83.2 Ų |
| Heavy Atom Count | 35 |
| Formal Charge | 0 |
| Complexity | 731 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
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