Drug Discoveries & Therapeutics
Online ISSN : 1881-784X
Print ISSN : 1881-7831
ISSN-L : 1881-7831
Original Articles
Pharmacokinetics and safety of single-dose ribavirin in patients with chronic renal impairment
Samir K. GuptaBhavna KantesariaPaul Glue
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2013 Volume 7 Issue 4 Pages 158-163


This open-label study assessed the pharmacokinetics of a single 400-mg oral dose of ribavirin in 6 healthy volunteers and 18 subjects with varying degrees of renal impairment (mild: creatinine clearance [CLcr] 61-90 mL/min/1.73m2, moderate: CLcr 31-60 mL/min/1.73m2, severe: CLcr 10-30 mL/min/1.73m2, n = 6 in each group). Blood and urine samples were collected pre-dose and up to 168 hours post-dose for pharmacokinetic analyses. Compared with control subjects, ribavirin area under the plasma concentration-time curve from time zero to the time of the final quantifiable sample (AUCtf) and maximum plasma concentration (Cmax) values were increased, and apparent clearance (CL/F), clearance (CLr), and amount excreted (Ae) values were reduced in subjects with renal impairment. Mean ribavirin AUCtf was increased 2- to 3-fold in patients with moderate-severe renal impairment compared with control subjects. Ribavirin CL/F and CLr were significantly correlated with CLcr. Single-dose ribavirin was safe and well tolerated in all subjects. The pharmacokinetics of ribavirin were substantially altered in subjects with stable chronic renal impairment, possibly reflecting changes in ribavirin metabolism associated with renal impairment.

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© 2013 International Research and Cooperation Association for Bio & Socio-Sciences Advancement
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