BAY41-4109 is a heteroaryldihydropyrimidine (HAP)-based capsid assembly modulator (CAM) that destabilizes hepatitis B virus (HBV) capsid assembly. BAY41-4109 inhibits HBV replication in HepG2.2.15 cultures with little host cytotoxicity (IC50 = 53 nM vs. CC50 = 7 μM in 8 days). Despite its relatively short half-life in vivo (plasma t1/2 = 5 h/dog, 2 h/rat, ≤1 h/mouse), BAY41-4109 shows greater antiviral efficacy than 3TC in Tg [HBV1.3 fsX-3′5′] mice (HBV DNA reduction = 52%/BAY vs. 36%/3TC in liver via 30 mg/kg b.i.d. p.o.; 70% vs. 30% in plasma with 15 mg BAY/kg or 30 mg/kg 3TC b.i.d. p.o., respectively) with good oral availability (F/tmax =31%/mouse, 58%/rat & dog).
Heteroaryldihydropyrimidine (HAP) capsid assembly modulator (CAM) that destabilizes hepatitis B virus (HBV) capsid assembly and replication in vitro & in vivo.
Hepatitis B virus (HBV) core protein assembles viral pre-genomic (pg) RNA and DNA polymerase into nucleocapsids for reverse transcriptional DNA replication to take place. Several chemotypes of small molecules, including heteroaryldihydropyrimidines (HAPs) and sulfamoylbenzamides (SBAs), have been discovered to allosterically
Antimicrobial agents and chemotherapy, 57(11), 5344-5354 (2013-08-21)
Hepatitis B virus (HBV)-associated chronic liver diseases are treated with nucleoside analogs that target the virus polymerase. While these analogs are potent, drugs are needed to target other virus-encoded gene products to better block the virus replication cycle and chronic
Science (New York, N.Y.), 299(5608), 893-896 (2003-02-08)
Chronic hepatitis B virus (HBV) infection is a major cause of liver disease. Only interferon-alpha and the nucleosidic inhibitors of the viral polymerase, 3TC and adefovir, are approved for therapy. However, these therapies are limited by the side effects of
Journal of molecular recognition : JMR, 19(6), 542-548 (2006-09-29)
Here we report the effect of a heteroaryldihydropyrimidine (HAP) antiviral compound, BAY 41-4109, on Hepatitis B virus (HBV) capsid assembly and on preformed HBV capsids. The HBV capsid is an icosahedral complex of 120 capsid protein dimers. BAY41-4109 inhibits virus
The HBV core protein represents an attractive target for new antiviral therapies due to its multiple functions within the viral life-cycle. Here, we report the antiviral activity of the capsid assembly modulator (CAM) BAY41-4109 and two nucleos(t)ide analogues (NAs) on
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