icon-folder.gif   Conference Reports for NATAP  
 
  EASL 46th Annual Meeting
March 30th - April 3rd 2011
Berlin, Germany
Back grey_arrow_rt.gif
 
 
 
BMS-766, a Novel HCV NS5A Inhibitor With Enhanced Resistance Coverage
 
 
  Reported by Jules Levin
EASL 2011 Berlin March 30-April 2
 
Gao M, Fridell R, Wang C, Sun J-H, O'Boyle II DR, Valera L, Nower P, Monikowski A, Kirk M, Huang H, Ngo CK, Fang H, Knox R, Wang Y-K, Nguyen VN, Yang F, Snyder LB, Lavoie R, Bender JA, Kadow JF, Cockett M, Meanwell NA, Belema M Bristol-Myers Squibb, Research and Development, Wallingford, CT, USA

EASL1.gif

BACKGROUND
NS5A inhibitors are a new class of potent anti -hepati ti s C virus (HCV) agents identi fied by Bristol-Myers Squibb (BMS) (Table 1)
 
- BMS-790052 is a replicati on complex inhibitor, with EC50 values of 50 and 9 pM
 
against genotype (GT) 1a and 1b replicons, that exhibits broad genotype coverage -- The potency of BMS-790052 against GT1a and 1b replicons translated to rapid viral decline in clinical studies1
 

EASL2.gif

The NS5A protein is a key component of the HCV replication complex4
 
BMS NS5A inhibitors disrupt active viral RNA replication (Figure 1)
 
Our current hypothesis is that these interacti ons with the replicati on complex deliver the exceptional potency of BMS NS5A inhibitors

EASL3.gif

EASL4.gif

EASL5.gif

EASL6.gif

EASL7.gif

EASL8.gif

EASL9.gif

EASL10.gif

References
 
1. Pol S, et al. 45th EASL; April 14-18, 2010; Vienna, Austria. Abstract 1189.
2. Lenz O, et al. Anti microb Agent Chemother 2010;54:1878-1887.
3. Clark JL, et al. J Med Chem 2005;48:5504-5508.
4. Reiss S, et al. Cell Host Microbe 2011;9:32-45.
5. Colonno R, et al. 45th EASL; April 14-18, 2010; Vienna, Austria. Abstract 33.
6. Gao M, et al. 61st AASLD, October 29-November 2, 2010; Boston, MA, USA.
Abstract 1853.
7. Gao M, et al. Nature 2010; 465:96-100.