Home Proteases HCV Protease inhibitor Simeprevir For research use only.

Simeprevir

Synonyms: TMC435, TMC-435350

Simeprevir is a competitive, reversible, macrocyclic, noncovalent hepatitis C virus (HCV) NS3/4A protease inhibitor that acts directly against the hepatitis C virus. It has a medium inhibitory concentration (IC50) <13 nM for all HCV NS3/4A enzymes(genotypes 1a, 1b, 2, 4, 5, and 6), but has an IC50 value of 37 nM for genotype 3.

Simeprevir Chemical Structure

Simeprevir Chemical Structure

CAS No. 923604-59-5

Purity & Quality Control

Simeprevir Related Products

Signaling Pathway

HCV Protease Signaling Pathways

HCV Protease Signaling Pathway

Biological Activity

Description Simeprevir is a competitive, reversible, macrocyclic, noncovalent hepatitis C virus (HCV) NS3/4A protease inhibitor that acts directly against the hepatitis C virus. It has a medium inhibitory concentration (IC50) <13 nM for all HCV NS3/4A enzymes(genotypes 1a, 1b, 2, 4, 5, and 6), but has an IC50 value of 37 nM for genotype 3.
Targets
HCV NS3/4A protease [1]
In vitro
In vitro Simeprevir exhibits potent inhibition on NS3/4A protease of genotypes 1a, 1b, 2, 4, 5, and 6, with a medium inhibitory concentration (IC50) <13 nM for all HCV NS3/4A enzymes tested. However, the IC50 for genotype 3 is 37 nM. In vitro, simeprevir is also an inhibitor of bilirubin transporters OATP1B1 and MRP2. It is a more potent inhibitor of OATP1B1 (IC50=720 nM), which is primarily responsible for transporting unconjugated bilirubin, than MRP2 (IC50 around 10,000 nM), primarily a conjugated bilirubin transporter[1].
In Vivo
In vivo In vivo, simeprevir has a relatively long absorption phase, reaching maximum concentration (Cmax) after 4-6 hours. It is extensively (99.9%) bound to plasma proteins, mainly to albumin. The absolute bioavailability is 44% after a single oral administration. In rats, The liver to blood ratio is 29:1, which means good distribution to the liver. For humans, in preclinical studies, the liver to plasma concentration ratio is really high (ratio of 39). The highest tissue/plasma AUC ratios are observed in the small intestine (ratio of 128). While tissue simeprevir concentrations reaches peak values within 4 hours postdosing, simeprevir concentrations in liver remains above the EC99 for up to 31 hours postdosing, and plasma concentrations are higher than the EC99 at 8 hours and around the EC50 at 24 hours postdosing. The AUC24h of simeprevir is increased by 61%-69% when administered with food. Simeprevir should therefore be taken with food. Simeprevir is also a substrate and inhibitor of P-glycoprotein. Simeprevir is metabolized by CYP3A4 and eliminated by biliary excretion. It is also an inhibitor of gut cytochrome 3A4 but not hepatic CYP3A4[1].
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03277755 Withdrawn
Hepatic Impairment
Janssen Research & Development LLC
 September 11 2017 Phase 1
NCT02404805 Completed
HIV|Hepatitis C
University of Colorado Denver
 February 2016 Not Applicable
NCT02569710 Completed
Chronic Hepatitis C
Alios Biopharma Inc.
 October 31 2015 Phase 2
NCT02512562 Completed
Chronic Hepatitis C
Alios Biopharma Inc.|Alexion Pharmaceuticals Inc.
 July 31 2015 Phase 1

Chemical Information & Solubility

Molecular Weight 749.94 Formula

C38H47N5O7S2
 
CAS No. 923604-59-5 SDF --
Smiles CC1=C(C=CC2=C1N=C(C=C2OC3CC4C(C3)C(=O)N(CCCCC=CC5CC5(NC4=O)C(=O)NS(=O)(=O)C6CC6)C)C7=NC(=CS7)C(C)C)OC
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (133.34 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 4 mg/mL

Water : Insoluble


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In vivo
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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