Clinical Pharmacokinetics of Ombitasvir
Prajakta S Badri1, Diana L Shuster1, Sandeep Dutta1
1Clinical Pharmacology and Pharmacometrics, AbbVie Inc., Dept. R4PK, Bldg. AP31-3, 1 North Waukegan Road, North Chicago, IL, 60064, USA.
Abstract:
Ombitasvir is a potent, nonstructural protein 5A inhibitor of the hepatitis C virus (HCV) that is used in combination with other direct-acting antivirals for the treatment of chronic HCV infection. Ombitasvir is predominantly metabolized by amide hydrolysis followed by oxidative metabolism and is a substrate of P-glycoprotein. Ombitasvir displays linear pharmacokinetics with minimal accumulation and is eliminated via metabolism and biliary excretion. A negligible amount of unchanged drug is excreted in urine. Exposures are comparable across Chinese, Japanese, and non-Asian subjects. The pharmacokinetic characteristics of ombitasvir are similar in healthy subjects and HCV-infected patients, and are not appreciably altered by hepatic or renal impairment. Results from several drug interaction studies demonstrated that ombitasvir has a low potential for drug interactions.
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