Paritaprevir

Paritaprevir (previously known as ABT-450) is an acylsulfonamide[1] inhibitor of the NS3-4A serine protease[2] manufactured by Abbott Laboratories[3] that shows promising results as a treatment of hepatitis C. When given in combination with ritonavir and ribavirin for 12 weeks, the rate of sustained virologic response at 24 weeks after treatment has been estimated to be 95% for those with hepatitis C virus genotype 1.[4] Resistance to treatment with paritaprevir is uncommon, because it targets the binding site, but has been seen to arise due to mutations at positions 155 and 168 in NS3.[5]:248

Paritaprevir
Clinical data
Trade namesViekira Pak (in combination with ombitasvir, ritonavir and dasabuvir), Technivie/Viekirax (in combination with ombitasvir and ritonavir)
Other namesVeruprevir; ABT-450
License data
Pregnancy
category
  • US: B (No risk in non-human studies)
    Routes of
    administration
    Oral
    ATC code
    Legal status
    Legal status
    Pharmacokinetic data
    Bioavailabilitywas not evaluated
    Protein binding97–98.6%
    MetabolismHepatic, CYP3A4 and CYP3A5
    Onset of action4 to 5 hours
    Elimination half-life5.5 hours
    Excretionfeces (88%), urine (8,8%)
    Identifiers
    CAS Number
    PubChem CID
    DrugBank
    ChemSpider
    UNII
    KEGG
    ChEBI
    ChEMBL
    Chemical and physical data
    FormulaC40H43N7O7S
    Molar mass765.89 g·mol−1
    3D model (JSmol)

      Paritaprevir is a component of Viekira Pak and Technivie.[6]

      References

      1. Tan SL, He Y, eds. (2011). Hepatitis C: antiviral drug discovery and development. Norfolk: Caister academic press. p. 210. ISBN 9781904455783. Retrieved 28 April 2014.
      2. Jensen D, Reau N, eds. (2013). Hepatitis C. New York: Oxford University Press. p. 144. ISBN 9780199844296. Retrieved 28 April 2014.
      3. "Abbott Announces Phase 3 Hepatitis C Program Details". Abbott company website. Abbott Laboratories. Retrieved 28 April 2014.
      4. Kowdley KV, Lawitz E, Poordad F, Cohen DE, Nelson DR, Zeuzem S, et al. (January 2014). "Phase 2b trial of interferon-free therapy for hepatitis C virus genotype 1". The New England Journal of Medicine. 370 (3): 222–32. doi:10.1056/NEJMoa1306227. PMID 24428468.
      5. Lange C, Sarrazin C (2013). "Hepatitis C: New Drugs". In Mauss S, Berg T, Rockstroh J, Sarrazin C (eds.). Hepatology 2013 a clinical textbook (PDF) (4th ed.). Düsseldorf: Flying Publisher. ISBN 978-3-924774-90-5. Archived from the original (PDF) on 29 April 2014. Retrieved 28 April 2014.
      6. "TECHNIVIE™ (ombitasvir, paritaprevir and ritonavir) Tablets, for Oral Use. Full Prescribing Information" (PDF). AbbVie Inc., North Chicago, IL 60064. Archived from the original (PDF) on 7 August 2015. Retrieved 28 July 2015.


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