Grazoprevir is an azamacrocyclic compound that is a hepatitis C protease inhibitor used in combination with elbasvir (under the brand name Zepatier) for treatment of chronic HCV genotypes 1 or 4 infection in adults. It has a role as an antiviral drug, a hepatoprotective agent and a hepatitis C protease inhibitor. It is a carbamate ester, a lactam, an aromatic ether, a quinoxaline derivative, a member of cyclopropanes, an azamacrocycle and a N-sulfonylcarboxamide.
H373 (100%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
P260, P319, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 35 reports by companies from 1 notifications to the ECHA C&L Inventory.
危険有害性情報
Hazard Classes and CategoriesSTOT RE 2 (100%)
毒性情報
Effects During Pregnancy and Lactation◉ Summary of Use during Lactation
安全データ
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード H373
化学と産業
薬理情報
ATC Code · 2 件
J - Antiinfectives for systemic use
QJ - Antiinfectives for systemic use
Protein BindingGrazoprevir is more than 98.8% bound to plasma proteins. It binds both human serum albumin and α1-acid glycoprotein.
PharmacodynamicsGrazoprevir is classified as a direct-acting antiviral (DAA) and prevents viral replication in HCV genotypes 1a, 1b, and 4.
Mechanism of Action · 1 件
Grazoprevir is a second generation NS3/4a protease inhibitor used to inhibit viral HCV replication. NS3/4a protease is an integral part of viral replication and mediates the cleavage the virally encoded polyprotein to mature proteins (NS3, NS4A, NS4B, NS5A and NS5B). Grazoprevir inhibits the NS3/4protease enzymes of HCV genotype 1a, 1B, and 4 with IC50 values of 7pM, 4pM, and 62pM, respectively.
Biological Half-LifeThe geometric mean apparent terminal half-life for Grazoprevir is 31 hours in HCV-infected subjects.
Metabolism/MetabolitesGrazoprevir is partially eliminated by oxidative metabolism meditated by CYP3A. No circulating metabolites of have been detected in human plasma.
FDA Pharmacological Classification · 6 件
8YE81R1X1J
GRAZOPREVIR ANHYDROUS
Mechanisms of Action [MoA] - HCV NS3/4A Protease Inhibitors
Established Pharmacologic Class [EPC] - Hepatitis C Virus NS3/4A Protease Inhibitor
Mechanisms of Action [MoA] - Breast Cancer Resistance Protein Inhibitors
Mechanisms of Action [MoA] - Cytochrome P450 3A Inhibitors
MeSH Pharmacological Classification · 1 件
Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly.
Grazoprevir reaches peak plasma concentration 0.5-3 hours after administration. Grazoprevir has an absolute bioavailability of 27%. When taken with food the peak concentration of Grazoprevir increases 2.8 fold but this increase in exposure has not been deemed clinically relevant.
Grazoprevir is mainly eliminated in the feces (90%) with very little eliminated in the urine (<1%).
Grazoprevir has an estimated apparent volume of distribution of 1250 liters. It is thought to distribute primarily to the liver with its uptake facilitated by organic anion transporting polypeptide 1B1/3.
The clearance of Grazoprevir has not been determined.