The Observed Effect of Gastric Bypass Surgery on Direct-acting Antiviral Treatment: a Case Report

Journal Title: Annals of Hepatology - Year 2018, Vol 17, Issue 3

Abstract

Chronic hepatitis C virus (HCV) infection can be cured with treatment using direct-acting antivirals (DAAs). Although these drugs have been widely studied, information about certain special populations is missing. In this case report we describe a treatment-experienced patient with chronic HCV infection genotype 1b, treated with 150 mg/day simeprevir, 400 mg/day sofosbuvir, and 1,000 mg/ day ribavirin for 24 weeks, after a Roux-and-Y gastric bypass. At steady-state a pharmacokinetic curve was recorded of sofosbuvir, GS-331007, and simeprevir. Ribavirin trough plasma concentration (Ctrough) was determined. The simeprevir area under the-concentration time curve (AUClast) and Ctrough were 9.42 h.mg/L and 0.046 mg/L, respectively. Compared to what was described in the literature, simeprevir exposure was low and therefore the simeprevir dose was increased to 300 mg/day. The increased dose of simeprevir was well tolerated and Ctrough was 0.532 mg/L. Sofosbuvir AUClast and Ctrough were 0.63 h.mg/L and 0.0013 mg/L. GS-331007 AUClast and Ctrough were 21.02 h.mg/L and 0.35 mg/L. Ribavirin Ctrough was 2.5 mg/L. Sofosbuvir, GS-331007, and ribavirin exposure were comparable with levels described in literature. The patient achieved a sustained virological response twelve weeks after the completion of treatment.<br/><br/>

Authors and Affiliations

Elise J. Smolders, Sophie B Willemse, Omar El-Sherif, Saye Khoo, David M Burger

Keywords

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  • EP ID EP345420
  • DOI 10.5604/01.3001.0011.7398
  • Views 118
  • Downloads 0

How To Cite

Elise J. Smolders, Sophie B Willemse, Omar El-Sherif, Saye Khoo, David M Burger (2018). The Observed Effect of Gastric Bypass Surgery on Direct-acting Antiviral Treatment: a Case Report. Annals of Hepatology, 17(3), 525-529. https://europub.co.uk/articles/-A-345420