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EASL 2014: Idenix Hepatitis C Drugs Look Promising in Early Studies

Idenix Pharmaceuticals' hepatitis C virus NS5A inhibitor samatasvir (formerly IDX179) plus Janssen's HCV protease inhibitor simeprevir (Olysio) and ribavirin produced early sustained virological response rates of about 80% in a small study presented at the 49th EASL International Liver Congress last month in London. Another study showed that the company's HCV polymerase inhibitor candidate IDX21437 looks good in preclinical studies and is a potential once-daily partner for samatasvir in interferon-free regimens.

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Achillion Announces Start of Studies of ACH-3422 and ACH-3102 for Hepatitis C

Achillion Pharmaceuticalsannounced this week that the first participants have started receiving treatment in a Phase 1 clinical trial testing the investigational nucleotide hepatitis C virus (HCV) polymerase inhibitor ACH-3422. In addition, a recently initiated Phase 2 study is evaluating the company's next-generation NS5A inhibitor ACH-3012 in combination with Gilead Sciences' sofosbuvir (Sovaldi) for as little as 8 or even 6 weeks.

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AbbVie Requests FDA Approval of Interferon-free "3D" Combo for Hepatitis C

AbbVie announced this week that it has submitted a New Drug Application to the U.S. Food and Drug Administration seeking approval of its "3D" regimen of direct-acting antivirals -- ABT-450/ritonavir, ombitasvir (ABT-267), and dasabuvir (ABT-333), to be used with or without ribavirin. 3D has been designated as an FDA "breakthrough therapy" and an approval decision is expected by the end of the year.

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EASL 2014: Sofosbuvir + Ribavirin for 24 Weeks Is Highly Effective Against HCV Genotype 4

A 24-week regimen of sofosbuvir (Sovaldi) plus ribavirin cured 93% of people with hard-to-treat  hepatitis C virus (HCV) genotype 4, though treatment for only 12 weeks was not as effective, according to a poster presentation at the EASL International Liver Congress this month in London.

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EASL 2014: Sofosbuvir Works Well Despite Multiple Negative Predictive Factors

Hepatitis C treatment using sofosbuvir (Sovaldi) is highly effective even for people with multiple factors traditionally associated with poor response. Having 4 or more negative predictive factors, however, raises the risk of post-treatment relapse, according to a report at the 49th EASL International Liver Congress held recently in London.alt

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