Pharmacokinetic Profile of a Generic Formulation of Sofosbuvir and Its Metabolite GS-331007 in Healthy Chinese Subjects

Clin Pharmacol Drug Dev. 2019 Nov;8(8):1073-1080. doi: 10.1002/cpdd.674. Epub 2019 Mar 22.

Abstract

Sofosbuvir is an NS5B nucleotide inhibitor for the treatment of hepatitis C viral infection. In this study the pharmacokinetics (PK) and safety of single and multiple doses of generic sofosbuvir were investigated in healthy Chinese subjects. Twelve subjects (6 male and 6 female) were enrolled in this study. The PK parameters of sofosbuvir and its metabolite (GS-331007) in both blood and urine samples were analyzed after dosing by the established liquid chromatography tandem mass spectrometry analytical method. The safety/tolerability assessment consisted of documenting adverse events, vital signs, electrocardiogram, and laboratory test results. Sofosbuvir was well tolerated. Major PK parameters of the generic formulation of sofosbuvir were similar to those found in previous reports. These data support further clinical evaluation of this generic formulation of sofosbuvir.

Keywords: GS-331007; HCV; Healthy Chinese Subjects; Pharmacokinetics; Sofosbuvir.

Publication types

  • Clinical Trial, Phase I
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Oral
  • Adult
  • Antiviral Agents / adverse effects
  • Antiviral Agents / blood
  • Antiviral Agents / pharmacokinetics*
  • Antiviral Agents / urine
  • Area Under Curve
  • Dose-Response Relationship, Drug
  • Drugs, Generic / adverse effects
  • Drugs, Generic / pharmacokinetics*
  • Female
  • Healthy Volunteers
  • Hepacivirus / drug effects
  • Humans
  • Male
  • Metabolic Clearance Rate
  • Sofosbuvir / adverse effects
  • Sofosbuvir / blood
  • Sofosbuvir / pharmacokinetics*
  • Sofosbuvir / urine
  • Uridine / adverse effects
  • Uridine / analogs & derivatives*
  • Uridine / blood
  • Uridine / pharmacokinetics
  • Uridine / urine

Substances

  • Antiviral Agents
  • Drugs, Generic
  • GS331007
  • Uridine
  • Sofosbuvir