Abstract
Purpose
This study describes the pharmacokinetics, safety, and tolerability of ribavirin in hemodialysis-dependent patients.
Methods
Six adult patients (4 male, 2 female) were recruited from a hemodialysis clinic where they were receiving regular hemodialysis sessions. Patients received a single oral 400-mg dose of ribavirin (2 × 200-mg capsules) after an overnight fast. A 4-h hemodialysis session was performed between 6 and 10 h post-dose. Plasma and urinary concentrations of ribavirin were determined using validated high-performance liquid chromatography/tandem mass spectrometric methods.
Results
Single oral doses of ribavirin 400 mg were safe and well tolerated in this population. Urinary excretion of ribavirin over 48 h was minimal (0.6 mg: approximately 0.14% of the dose). The mean amount removed during the 4-h hemodialysis session (9.6 mg) represented approximately 2.4% of the dose.
Conclusions
Ribavirin hemodialysis clearance (CLhd = 74.5 ml/min) represented approximately 50% of the renal clearance (CLr) measured in subjects with normal renal function (CLr = 129 ml/min).
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Acknowledgements
Authors appreciate the following for their support of this research: Dr. Marshall Sack of Radiant Research for recruiting and testing patients.
Financial disclosure
This study was funded by Merck & Co, Inc.; Whitehouse Station, NJ, USA. All authors were employees of Schering-Plough Research Institute at the time when this research was performed.
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Gupta, S.K., Kantesaria, B. & Glue, P. Pharmacokinetics, safety, and tolerability of ribavirin in hemodialysis-dependent patients. Eur J Clin Pharmacol 68, 415–418 (2012). https://doi.org/10.1007/s00228-011-1137-x
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DOI: https://doi.org/10.1007/s00228-011-1137-x