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Vertex to Discontinue Sale of Telaprevir (Incivek) for Hepatitis C

Vertex Pharmaceuticals announced last week that it will stop selling its HCV protease inhibitor telaprevir (Incivek or Incivo) as of October 16, 2014. While the first generation direct-acting antivirals are more effective than pegylated interferon plus ribavirin alone, they are no match for newer drugs such as Gilead Sciences' sofosbuvir (Sovaldi) or AbbVie's forthcoming "3D" regimen in terms of efficacy or tolerability.

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Studies Show High Cure Rates for Interferon-free Hepatitis C Treatment

An all-oral combination of daclatasvir (Daklinza) plus asunaprevir led to sustained virological response (SVR) in 82%-90% of treatment-naive and previously treated people with hepatitis C virus genotype 1b, while a regimen of sofosbuvir (Sovaldi) plus simeprevir (Olysio) cured 92%-94% of hepatitis C patients with or without cirrhosis, according to findings from a pair of clinical trials reported in the July 28 advance online edition of The Lancet.

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Telaprevir Triple Therapy Shows Activity Against HCV Genotype 4

The HCV protease inhibitor telaprevir (Incivek or Incivo) in combination with pegylated interferon and ribavirin reduced viral levels by more than 4 log in people with genotype 4 hepatitis C in a short Phase 2a study, researchers reported in the September 15, 2013 Journal of Infectious Diseases.

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IDWeek 2013: Older People Respond Equally Well to Telaprevir Triple Therapy for Hepatitis C

Interferon-based therapy with telaprevir (Incivek or Incivo) produced a similar cure rate with no notable increase in side effects or treatment discontinuation for genotype 1 chronic hepatitis C patients over age 60, Japanese researchers reported at the second IDWeek conference held recently in San Francisco.

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EASL 2013: 12 Weeks of Telaprevir Triple Therapy Adequate for Some Hep C Patients

Nearly 90% of genotype 1 chronic hepatitis C patients with favorable response factors including the IL28B CC gene variant achieved a cure with just 12 weeks of telaprevir (Incicek or Incivo) plus pegylated interferon/ribavirin, rising to 97% for those treated for 24 weeks, researchers reported at the recent EASL International Liver Congress (EASL 2013) in Amsterdam.

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