Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Công thức hóa học
C21H15ClF4N4O3
Monoisotopic mass
482.076880893
InChI
InChI=1S/C21H15ClF4N4O3/c1-27-19(31)18-10-13(6-7-28-18)33-12-3-5-17(16(23)9-12)30-20(32)29-11-2-4-15(22)14(8-11)21(24,25)26/h2-10H,1H3,(H,27,31)(H2,29,30,32)
InChI Key
InChIKey=FNHKPVJBJVTLMP-UHFFFAOYSA-N
IUPAC Name
4-[4-({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)-3-fluorophenoxy]-N-methylpyridine-2-carboxamide
Traditional IUPAC Name
regorafenib
SMILES
CNC(=O)C1=CC(OC2=CC(F)=C(NC(=O)NC3=CC=C(Cl)C(=C3)C(F)(F)F)C=C2)=CC=N1
pKa (strongest acidic)
10.52
pKa (Strongest Basic)
2.02
Refractivity
114.73 m3·mol-1
Cơ Chế Tác Dụng :
Regorafenib is an orally-administered inhibitor of multiple kinases. It is used for the treatment of metastatic colorectal cancer and advanced gastrointestinal stromal tumours. FDA approved on September 27, 2012.
Regorafenib is a small molecule inhibitor of multiple membrane-bound and intracellular kinases involved in normal cellular functions and in pathologic processes such as oncogenesis, tumor angiogenesis, and maintenance of the tumor microenvironment. In in vitro biochemical or cellular assays, regorafenib or its major human active metabolites M-2 and M-5 inhibited the activity of RET, VEGFR1, VEGFR2, VEGFR3, KIT, PDGFR-alpha, PDGFR-beta, FGFR1, FGFR2, TIE2, DDR2, TrkA, Eph2A, RAF-1, BRAF, BRAFV600E , SAPK2, PTK5, and Abl at concentrations of regorafenib that have been achieved clinically. In in vivo models, regorafenib demonstrated anti-angiogenic activity in a rat tumor model, and inhibition of tumor growth as well as anti-metastatic activity in several mouse xenograft models including some for human colorectal carcinoma.
Dược Động Học :
▧ Absorption :
Cmax = 2.5 μg/mL;
Tmax = 4 hours;
AUC = 70.4 μg*h/mL;
Cmax, steady-state = 3.9 μg/mL;
AUC, steady-state = 58.3 μg*h/mL;
The mean relative bioavailability of tablets compared to an oral solution is 69% to 83%.
▧ Volume of Distribution :
Regorafenib undergoes enterohepatic circulation with multiple plasma concentration peaks observed across the 24-hour dosing interval.
▧ Protein binding :
Regorafenib is highly bound (99.5%) to human plasma proteins.
▧ Metabolism :
Regorafenib is metabolized by CYP3A4 and UGT1A9. The main circulating metabolites of regorafenib measured at steady-state in human plasma are M-2 (N-oxide) and M-5 (N-oxide and N-desmethyl), both of them having similar in vitro pharmacological activity and steady-state concentrations as regorafenib. M-2 and M-5 are highly protein bound (99.8% and 99.95%, respectively).
▧ Route of Elimination :
Approximately 71% of a radiolabeled dose was excreted in feces (47% as parent compound, 24% as metabolites) and 19% of the dose was excreted in urine (17% as glucuronides) within 12 days after administration of a radiolabeled oral solution at a dose of 120 mg.
▧ Half Life :
Regorafenib, 160 mg oral dose = 28 hours (14 - 58 hours);
M2 metabolite, 160 mg oral dose = 25 hours (14-32 hours);
M5 metabolite, 160 mg oral dose = 51 hours (32-72 hours);
Độc Tính :
The most common adverse reactions (≥20%) are asthenia/fatigue, HFSR, diarrhea, decreased appetite/food intake, hypertension, mucositis, dysphonia, and infection, pain (not otherwise specified), decreased weight, gastrointestinal and abdominal pain, rash, fever, and nausea
Chỉ Định :
Regorafenib is indicated for the treatment of patients with metastatic colorectal cancer (CRC) who have been previously treated with fluoropyrimidine-, oxaliplatin- and irinotecan-based chemotherapy, an anti-VEGF therapy, and, if KRAS wild type, an anti-EGFR therapy. Regorafenib is also indicated for the treatment of patients with locally advanced, unresectable or metastatic gastrointestinal stromal tumor (GIST) who have been previously treated with imatinib mesylate and sunitinib malate.
Tương Tác Thuốc :
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Carbamazepine
Strong CYP3A4 inducers may decrease levels of regorafenib.
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Clarithromycin
Strong CYP3A4 inhibitors may increase levels of regorafenib.
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Irinotecan
Regorafenib may increase levels of irinotecan, a UGT1A1 substrate.
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Itraconazole
Strong CYP3A4 inhibitors may increase levels of regorafenib.
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Ketoconazole
Strong CYP3A4 inhibitors may increase levels of regorafenib.
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Phenobarbital
Strong CYP3A4 inducers may decrease levels of regorafenib.
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Phenytoin
Strong CYP3A4 inducers may decrease levels of regorafenib.
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Posaconazole
Strong CYP3A4 inhibitors may increase levels of regorafenib.
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Rifampicin
Strong CYP3A4 inducers may decrease levels of regorafenib.
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St. John's Wort
Strong CYP3A4 inducers may decrease levels of regorafenib.
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Telithromycin
Strong CYP3A4 inhibitors may increase levels of regorafenib.
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Voriconazole
Strong CYP3A4 inhibitors may increase levels of regorafenib.
Liều Lượng & Cách Dùng :
Tablet - Oral - 40 mg
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National Drug Code Directory