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Hepatitis C

Undercounted Populations Raise Estimate of True U.S. Hepatitis C Prevalence

The number of people living with hepatitis C virus (HCV) infection in the U.S. is probably greater than the usual estimate due to undercounting of high-risk populations in household surveys, including prisoners, homeless people, and injection drug users, researchers reported in the September 2011 issue of Liver International.alt

Pharmasset Starts Trial of PSI-7977 and PSI-938 Oral Regimens for All HCV Genotypes

Pharmasset last week announced the initiation of a new Phase 2b clinical trial that will test the company's investigational nucleotide HCV polymerase inhibitors, PSI-7977 and PSI-938, in various interferon-sparing oral regimens with or without ribavirin.alt

Telaprevir plus Standard Therapy Can Produce Hepatitis C Cure in Less Time

Adding the hepatitis C virus (HCV) protease inhibitor telaprevir (Incivek) to pegylated interferon plus ribavirin increases the chances of sustained response and many patients achieved a cure with a shorter course of therapy, researchers reported in the September 15, 2011, New England Journal of Medicine.alt

ICAAC 2011: Didanosine, Higher HCV Viral Load Predict Liver Fibrosis in HIV/HCV Coinfected People

Use of didanosine (ddI, Videx) -- along with higher hepatitis C virus (HCV) RNA level, male sex, and older age -- was a significant risk factor for liver fibrosis in people with HIV/HCV coinfection, researchers reported at the 51st Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC 2011) this week in Chicago.alt

Early Data on BMS-790052 HCV NS5A Inhibitor Published

Bristol-Myers Squibb's experimental HCV NS5A inhibitor, BMS-790052, demonstrated potent antiviral activity, was well-tolerated, and pharmacokinetic parameters support once-daily dosing, according to a small 14-day proof-of-concept study described in the August 11, 2011, advance online edition of Hepatology.alt

ICAAC 2011: BMS-790052 plus Standard Therapy Cures Most Genotype 1 Hepatitis C Patients

Up to 83% of treatment-naive people with difficult-to-treat genotype 1 hepatitis C virus (HCV) infection achieved sustained virological response (SVR) with the experimental HCV NS5A inhibitor BMS-790052 plus pegylated interferon and ribavirin, according to data presented at the 51st Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC 2011) this week in Chicago.alt

PSI-7977 with Standard Therapy Produces 91% Sustained Response

The experimental hepatitis C virus (HCV) nucleotide analog polymerase inhibitor PSI-7977, used in combination with pegylated interferon and ribavirin, demonstrated a 12-week sustained virological response rate of 91% for previously untreated genotype 1 chronic hepatitis C patients in the ongoing PROTON trial.alt

Discovery May Aid Development of Hepatitis C Vaccine

Australian researchers have shed new light on the natural history of hepatitis C virus (HCV) by performing a longitudinal genetic analysis of the virus in 4 patients from the first few weeks after infection until resolution (spontaneous clearance or establishment of chronic infection).alt

HALT-C Finds High Rate of Liver-Related Death and Transplants among Interferon Non-Responders

Chronic hepatitis C patients in the HALT-C study who did not achieve sustained response to standard combination therapy or long-term pegylated interferon maintenance therapy had a high rate of liver transplantation and liver-related death, researchers reported in the August 2011 issue of Hepatology.